EP4326938A1 - Procédé de revêtement de matériaux textiles - Google Patents
Procédé de revêtement de matériaux textilesInfo
- Publication number
- EP4326938A1 EP4326938A1 EP22735513.8A EP22735513A EP4326938A1 EP 4326938 A1 EP4326938 A1 EP 4326938A1 EP 22735513 A EP22735513 A EP 22735513A EP 4326938 A1 EP4326938 A1 EP 4326938A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sol
- gel
- formulation
- fabric
- textile material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004753 textile Substances 0.000 title claims abstract description 130
- 239000000463 material Substances 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 94
- 238000000576 coating method Methods 0.000 title claims abstract description 63
- 239000011248 coating agent Substances 0.000 title claims abstract description 47
- 239000000203 mixture Substances 0.000 claims abstract description 297
- 238000009472 formulation Methods 0.000 claims abstract description 208
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 80
- 238000001035 drying Methods 0.000 claims abstract description 45
- 239000002253 acid Substances 0.000 claims abstract description 42
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 193
- 239000002243 precursor Substances 0.000 claims description 107
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 97
- 238000003825 pressing Methods 0.000 claims description 72
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 60
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 claims description 51
- 230000008569 process Effects 0.000 claims description 50
- 238000005406 washing Methods 0.000 claims description 50
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 45
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 45
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 43
- 238000005470 impregnation Methods 0.000 claims description 36
- 239000007864 aqueous solution Substances 0.000 claims description 31
- OYGYKEULCAINCL-UHFFFAOYSA-N triethoxy(hexadecyl)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC OYGYKEULCAINCL-UHFFFAOYSA-N 0.000 claims description 30
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 20
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- -1 zirconium alkoxide Chemical class 0.000 claims description 16
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 14
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 14
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 14
- BAAAEEDPKUHLID-UHFFFAOYSA-N decyl(triethoxy)silane Chemical compound CCCCCCCCCC[Si](OCC)(OCC)OCC BAAAEEDPKUHLID-UHFFFAOYSA-N 0.000 claims description 12
- YGUFXEJWPRRAEK-UHFFFAOYSA-N dodecyl(triethoxy)silane Chemical compound CCCCCCCCCCCC[Si](OCC)(OCC)OCC YGUFXEJWPRRAEK-UHFFFAOYSA-N 0.000 claims description 12
- FZMJEGJVKFTGMU-UHFFFAOYSA-N triethoxy(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](OCC)(OCC)OCC FZMJEGJVKFTGMU-UHFFFAOYSA-N 0.000 claims description 12
- MLXDKRSDUJLNAB-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F MLXDKRSDUJLNAB-UHFFFAOYSA-N 0.000 claims description 11
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 10
- 239000013011 aqueous formulation Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 7
- HJIMAFKWSKZMBK-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F HJIMAFKWSKZMBK-UHFFFAOYSA-N 0.000 claims description 6
- BVQYIDJXNYHKRK-UHFFFAOYSA-N trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CO[Si](OC)(OC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F BVQYIDJXNYHKRK-UHFFFAOYSA-N 0.000 claims description 6
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 5
- 230000003472 neutralizing effect Effects 0.000 claims description 5
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 5
- AVYKQOAMZCAHRG-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F AVYKQOAMZCAHRG-UHFFFAOYSA-N 0.000 claims description 5
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 229940089951 perfluorooctyl triethoxysilane Drugs 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 250
- 239000000499 gel Substances 0.000 description 150
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 88
- 238000012360 testing method Methods 0.000 description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 53
- 239000000243 solution Substances 0.000 description 46
- 239000003921 oil Substances 0.000 description 39
- 239000002904 solvent Substances 0.000 description 35
- 239000011521 glass Substances 0.000 description 31
- 239000010410 layer Substances 0.000 description 29
- 238000003756 stirring Methods 0.000 description 29
- 238000000151 deposition Methods 0.000 description 22
- 230000008021 deposition Effects 0.000 description 21
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 19
- 239000007921 spray Substances 0.000 description 17
- 150000001335 aliphatic alkanes Chemical class 0.000 description 16
- 239000000835 fiber Substances 0.000 description 16
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 12
- 239000002689 soil Substances 0.000 description 12
- 239000002585 base Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 229920000742 Cotton Polymers 0.000 description 8
- 229920000297 Rayon Polymers 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 7
- 238000005086 pumping Methods 0.000 description 7
- 239000005871 repellent Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000004951 kermel Substances 0.000 description 6
- 239000002105 nanoparticle Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000002444 silanisation Methods 0.000 description 6
- 238000002791 soaking Methods 0.000 description 6
- 231100000331 toxic Toxicity 0.000 description 6
- 230000002588 toxic effect Effects 0.000 description 6
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 5
- 240000002853 Nelumbo nucifera Species 0.000 description 5
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 239000004014 plasticizer Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000002738 chelating agent Substances 0.000 description 4
- PBAYDYUZOSNJGU-UHFFFAOYSA-N chelidonic acid Natural products OC(=O)C1=CC(=O)C=C(C(O)=O)O1 PBAYDYUZOSNJGU-UHFFFAOYSA-N 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 4
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 4
- 229910021642 ultra pure water Inorganic materials 0.000 description 4
- 239000012498 ultrapure water Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000004760 aramid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- NNKKTZOEKDFTBU-YBEGLDIGSA-N cinidon ethyl Chemical compound C1=C(Cl)C(/C=C(\Cl)C(=O)OCC)=CC(N2C(C3=C(CCCC3)C2=O)=O)=C1 NNKKTZOEKDFTBU-YBEGLDIGSA-N 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 238000003980 solgel method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 231100000481 chemical toxicant Toxicity 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- RSKGMYDENCAJEN-UHFFFAOYSA-N hexadecyl(trimethoxy)silane Chemical compound CCCCCCCCCCCCCCCC[Si](OC)(OC)OC RSKGMYDENCAJEN-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- YFSUTJLHUFNCNZ-UHFFFAOYSA-N perfluorooctane-1-sulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-N 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 125000005372 silanol group Chemical group 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- RCHUVCPBWWSUMC-UHFFFAOYSA-N trichloro(octyl)silane Chemical compound CCCCCCCC[Si](Cl)(Cl)Cl RCHUVCPBWWSUMC-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010053317 Hydrophobia Diseases 0.000 description 1
- 229920002821 Modacrylic Polymers 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004693 Polybenzimidazole Substances 0.000 description 1
- 206010037742 Rabies Diseases 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001343 alkyl silanes Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- YCOZIPAWZNQLMR-UHFFFAOYSA-N heptane - octane Natural products CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- FUKUFMFMCZIRNT-UHFFFAOYSA-N hydron;methanol;chloride Chemical compound Cl.OC FUKUFMFMCZIRNT-UHFFFAOYSA-N 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 229960001047 methyl salicylate Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229940094933 n-dodecane Drugs 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- IKNCGYCHMGNBCP-UHFFFAOYSA-N propan-1-olate Chemical compound CCC[O-] IKNCGYCHMGNBCP-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 239000012418 sodium perborate tetrahydrate Substances 0.000 description 1
- IBDSNZLUHYKHQP-UHFFFAOYSA-N sodium;3-oxidodioxaborirane;tetrahydrate Chemical compound O.O.O.O.[Na+].[O-]B1OO1 IBDSNZLUHYKHQP-UHFFFAOYSA-N 0.000 description 1
- 239000012703 sol-gel precursor Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- BPCXHCSZMTWUBW-UHFFFAOYSA-N triethoxy(1,1,2,2,3,3,4,4,5,5,8,8,8-tridecafluorooctyl)silane Chemical compound CCO[Si](OCC)(OCC)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCC(F)(F)F BPCXHCSZMTWUBW-UHFFFAOYSA-N 0.000 description 1
- HQYALQRYBUJWDH-UHFFFAOYSA-N trimethoxy(propyl)silane Chemical compound CCC[Si](OC)(OC)OC HQYALQRYBUJWDH-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/503—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms without bond between a carbon atom and a metal or a boron, silicon, selenium or tellurium atom
- D06M13/507—Organic silicon compounds without carbon-silicon bond
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/52—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment combined with mechanical treatment
- D06M13/525—Embossing; Calendering; Pressing
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- D06M2400/00—Specific information on the treatment or the process itself not provided in D06M23/00-D06M23/18
- D06M2400/02—Treating compositions in the form of solgel or aerogel
Definitions
- the present invention relates to a new process for coating textile materials for the preparation of textiles having high level omniphobic properties and resistance to at least 30 washes without loss of these properties.
- the indices from 1 to 8 correspond to an oil repellency reached with white mineral oil (1), the mixture white mineral oil: n-hexadecane at 65:35% by volume (2), n- hexadecane (3), n-tetradecane (4), n-dodecane (5), n-decane (6), n-octane (7) and n-heptane (8), respectively.
- Index 6 therefore corresponds to oleophobia with n-decane.
- Omniphobic and water-repellent coatings find an interest in consumer products, such as rainwear, non-soiling clothing for workers, or children's clothing.
- Omniphobic coatings with the highest oil repellency indices, in particular equal to or greater than 6, are particularly suitable for personal protective equipment for armies, police, firefighters and industry.
- Pan et al. (AlChE Letters, 60(8) (2014), 27522756. DOI: 10.1002/aic.14517) use the vacuum silanization method in a desiccator 30 cm in diameter by exposing a previously cleaned cotton square to various alkylsilanes: n-octyltrichlorosilane (C18H37CL3Si, CAS No. 5283-66-9), tridecafluoro-1,1,2,2-tetrahydrooctyl-trichlorosilane (C8H4F13Cl3Si, CAS No. 78560-45-9) or tridecaflf luoro- 1 ,1,2,2-tetrahydrooctyl-triethoxysilane (C14H19F1303Si,
- Patent application FR 3057581 -A1 describes a sol-gel process in an essentially aqueous medium which may contain a silylated precursor or a mixture of silylated precursors for obtaining a barrier property with respect to toxic gaseous compounds, at namely toluene gas and methyl salicylate gas.
- the textile used is a 50% blend of viscose and aramid fibers.
- H' formulation of Sol comprising 9.92% by volume of TMOS (tetramethoxysilane), 2.1% of 1H,1H,2H,2H-perfluorodecyltriethoxysilane (C16H19F1703SÎ, CAS No.
- Patent application WO2016/077532 A1 from the University of Houston proposes a dirt and stain resistant coating based on a double coating layer.
- the 1st layer a mixture containing at least 3 types of alkoxysilane, tetraethoxysilane, trimethoxypropylsilane, 3-glycidoxypropyltrimethoxysilane serving respectively as structuring agent, plasticizing agent and bridging agent, water, HCl MeOH, all diluted with MeOH and for the 2nd layer an acid solution (pH ⁇ 1) of trichloro (1H,1H,2H,2H,-perfluorooctylsilane) in MeOH previously treated by heating between 50 and 100 °C, then neutralized with a KOH solution and filtered to remove solid particles, the authors obtained an oil repellency of level 6 to 9, but did not carry out a wash resistance test.
- the protocol involves a) immersing the fabric for 10 min in this mixture, followed by b) pressing the fabric to remove the excess solvent and c) a first drying at room temperature and d) drying at 135° C. for 30 min.
- These authors obtain a fabric that is both hydrophobic and oleophobic with contact angles of 171°, 155°, 151° and 120° respectively for droplets of 13 pL of water, hexadecane, tetradecane and octane. According to the authors, this coating would be very little damaged even after 40 machine washes. according to the Australian standard AS2001 .1.4 equivalent to the European standard ISO 6330.
- omniphobia hydrophobia and oleophobia
- omniphobia can only be achieved in three cases: (1) by vacuum silanization of a fabric previously ultra-cleaned with a long chain trichlorinated silane fluorinated for 24 H, or (2) with the use of the Lotus effect (nanoparticles of functionalized silica or silsesquioxane) coupled with a fluorinated coating or (3) with the use of 2 layers of coating , including a first containing a structuring agent, a plasticizer and a bridging agent and a 2nd layer of a fluorinated compound obtained from trichloro(1H,1H,2H,2H,-perfluorooctylsilane) or from trimethoxy(1H,1H,2H,2H-perfluorooctyl)silane.
- vacuum silanization is a process that is difficult to industrialize in the textile industry, in particular when the fabric must be cleaned beforehand of all the impurities which are trapped in the network of fibers during its production.
- the risk of losing material (fluorinated or functionalized nanometric particles) during successive washings exists with the fear of environmental pollution.
- a large number of constituents with structuring, plasticizing and bridging properties must be used in methanol for the first coating and MeOH is preferentially used as solvent for the 2nd coating, which in some cases requires a long treatment at high temperature.
- the wet loads mentioned for the coatings are in this important cases, between 115 and 160%.
- the method involves non-toxic formulations that meet the expectations and requirements of the textile industry, namely preparations of the formulations at room temperature, very high stability of the formulations over time for flexibility of use, reduced number of steps and short-term heat treatments of the textile running at high speed and no worker exposure to a toxic environment.
- This process results in obtaining a hydrophobic or omniphobic textile (both oleophobic and hydrophobic) with a high level of oleophobicity, breathable, resistant to acids and strong bases and washable without loss of properties.
- the alkoxy groups (OR) are hydrolyzed into silanol groups (Si-OH) with formation of ROH alcohol.
- the latter condense by forming siloxane bonds (Si-O-Si-) with release of water molecules.
- Small particles form generally less than 1 pm in size, which aggregate and form clusters which remain in suspension without precipitating, forming a sol.
- An object of the invention therefore relates to a process for coating a textile material, said process comprising the following steps: a) at least one cycle of impregnation of the textile material with a sol-gel formulation of grip, said sol-gel grip formulation being free of polycarboxylic acid; b) at least one drying cycle of the impregnated textile material obtained in step a); c) at least one impregnation cycle of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation, said omniphobic or hydrophobic sol-gel formulation being different from the sol-gel tie formulation; d) at least one drying cycle of the impregnated textile material obtained in step c); optionally followed by a step of) maturing the material obtained in step d) by storage at room temperature in a humid atmosphere with a relative humidity of 50% for at least 16 to 18 hours.
- the process according to the invention is adapted to be implemented industrially because it comprises a reduced number of steps, all easily achievable on an industrial scale, unlike vacuum silanization for example.
- Another advantage over the prior art is that it does not require the use of nanoparticles which can lead to pollution.
- This process makes it possible to prepare a textile material that is both omniphobic or hydrophobic, these properties being resistant to washing, and retaining its permeability, which makes it possible to have good breathability and comfort for the user.
- the textile material used can be of any type. It may for example be a fabric, a nonwoven or a knit, preferably a fabric.
- the term “textile material” is understood to mean a material whose individual constituent elements are fibers.
- the textile material comprises fibers comprising reactive functions such as hydroxyl functions.
- An example of such a fiber is cellulose present in natural fibers like cotton or man-made fibers like viscose. Preferably, they are viscose fibers.
- the fibers comprising hydrolyzable functions can be used alone, mixed together and/or mixed with other synthetic fibers such as polyamide, polyamide/imide, polymeta-phenylene terephthalamide, polypara-phenylene terephthalamide, d acrylic, modacrylic, polyester, oxidized polyacrylonitrile, poly(p-phenylene-2,6-benzobisoxazole) and polybenzimidazole or natural like wool.
- the textile material is a material based on an intimate mixture of viscose and synthetic fibers, preferably polyamide fibers, in particular aromatic polyamide.
- An example of such a fabric is Kermel®/Lenzing FR® 50:50.
- said at least one impregnation cycle a) of the textile material with a sol-gel gripping formulation comprises a step of pressing the impregnated textile material under pressure.
- a step of pressing the impregnated textile material under pressure is carried out after each impregnation cycle.
- said at least one impregnation cycle c) of the dried textile material obtained in step b) by an omniphobic or hydrophobic sol-gel formulation comprises a step of pressing the textile material under pressure imbued.
- a step of pressing the impregnated textile material under pressure is carried out after each impregnation cycle.
- the take-up rate is between 40 and 46%, preferably it is around 43%. This is a wet carry rate, before drying.
- the pressing under pressure is implemented under the following conditions.
- the impregnated fabric passes between two steam rollers maintained under a pressure which can be varied between 2 and 7 bars and a running speed varying from 1 to 9 m/min.
- the squeezing is preferably carried out at 5 bars and at a running speed of 2 m/min.
- said method comprises the following steps: a) at least one cycle of impregnation of the textile material with a sol-gel adhesion formulation, said sol-gel adhesion formulation being free of polycarboxylic acid; b) at least one drying cycle of the impregnated textile material obtained in step a); c) at least one impregnation cycle of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation comprising sulfamic acid, said omniphobic or hydrophobic sol-gel formulation being different from the sol formulation - gripping gel; d) at least one drying cycle of the impregnated textile material obtained in step c); optionally followed by a step d') of maturing the material obtained in step d) by storage at room temperature in a humid atmosphere with a relative humidity of 50% for at least 16 to 18 hours.
- the coating process may comprise the following additional steps: e) washing with a neutralizing aqueous solution of the impregnated textile material obtained in step d). f) drying the material obtained in step e).
- the drying step f) is followed by a step) of maturing the material obtained in step f) by storage at room temperature in a humid atmosphere with a relative humidity of 50 % for at least 4 p.m. to 6 p.m.
- additional steps for neutralizing the textile material are optional in the method according to the invention and are carried out only when neutralization is necessary.
- neutralizing aqueous solution means an aqueous solution which makes it possible to neutralize acid residues present in the impregnated textile material obtained at the end of step d) of the method according to the invention.
- Suitable aqueous neutralizing solutions are well known to those skilled in the art. It is generally a basic aqueous solution, such as a solution of soda or potash, preferably a solution of soda.
- each of the impregnation steps of the process can be carried out independently by padding ( Figure 1) or by spraying. [0035]. Compared to other coating techniques, padding achieves an even distribution of the soil as well as a better impregnation of the soil into the fabric.
- the scanning electron microscopy images show that the application of the coating composition according to the invention by padding results in sheathing of the textile fibers.
- the padding step of the process according to the invention is carried out at a speed of 1 to 50 meters/minute, preferably approximately 2 meters/minute.
- Spraying ( Figure 2) consists of the vaporization of a liquid into fine droplets (also called aerosol) which can be achieved by means of a mechanical device of the spray type. Unlike padding, this deposition method allows the coating of only one side of the fabric and it is not necessary to remove a surplus of formulation. Thus, for certain applications, it is possible to have each side of the fabric covered with a different formulation. However, it is advantageous to carry out a pressing step after spraying.
- the spraying step according to the method is preferably carried out at a pressure of 3 to 5 bars, even more preferably 4 bars, on a textile material preferably placed at a distance of 5 to 15 cm from the spray system.
- the textile material preferably being moved at a speed of 5 to 15 meters/minute, even more preferably of 6 to 12 meters/minute.
- the method may comprise at least 2 successive cycles a) and b), of impregnation of the textile material with a sol-gel adhesion formulation, said sol-gel adhesion formulation being free of polycarboxylic acid, and drying the impregnated textile material.
- the method may comprise at least 2 successive cycles a) and b), of impregnation of the textile material with a sol-gel adhesion formulation, said sol-gel adhesion formulation prepared at ambient temperature between 18 and 28°C being free of polycarboxylic acid, and drying of the impregnated textile material.
- the method may comprise at least 2 successive cycles a) and b), of impregnation of the textile material with a sol-gel grip formulation, said sol-gel grip formulation contains sulfamic acid and is free of polycarboxylic acid, and drying of the impregnated textile material.
- the method may comprise at least 2 successive cycles a) and b), of impregnation of the textile material with a sol-gel grip formulation, said sol-gel grip formulation prepared at ambient temperature between 18 and 28°C being free of polycarboxylic acid, and containing sulfamic acid and drying of the impregnated textile material.
- said sol-gel adhesion formulation is additionally free of plasticizer and/or chelating agent and/or viscosity agent.
- the sol-gel adhesion formulation used in the method according to the invention may be free of plasticizer.
- the sol-gel adhesion formulation used in the method according to the invention may be free of chelating agent.
- the sol-gel adhesion formulation used in the method according to the invention may be free of viscosity modifying agent.
- the process can advantageously comprise only one or two successive cycles a) and b), of impregnation of the textile material by a sol-gel adhesion formulation, said sol-gel adhesion formulation being free of polycarboxylic acid, and b) drying the impregnated textile material.
- the process comprises only one cycle, this then makes it possible to have a faster and simpler process to implement.
- the method may comprise only one or two successive cycles a) and b), of impregnation of the textile material with a sol-gel tie formulation, said sol-gel formulation of hook prepared at room temperature between 18 and 28° C., said sol-gel hook formulation being free of polycarboxylic acid, and b) drying the impregnated textile material.
- the process may comprise only one or two successive cycles a) and b), of impregnation of the textile material with a sol-gel tie formulation, said sol-gel formulation of grip contains sulfamic acid and is being free of polycarboxylic acid, and b) drying the impregnated textile material.
- the process can advantageously comprise only one or two successive cycles a) and b), of impregnation of the textile material by a sol-gel adhesion formulation, said sol-gel adhesion formulation being free of polycarboxylic acid, and b) drying the impregnated textile material after each cycle.
- the process can advantageously comprise only one or two successive cycles a) and b), of impregnation of the textile material by a sol-gel adhesion formulation, said sol-gel adhesion formulation prepared at room temperature between 18 and 28°C being free of polycarboxylic acid, and containing sulfamic acid and b) drying of the impregnated material.
- the drying step is carried out after each cycle.
- said sol-gel adhesion formulation is also free of plasticizer and/or chelating agent and/or viscosity agent.
- the method may also comprise at least 2 successive cycles c) and d), of impregnation of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation, said omniphobic sol-gel formulation or hydrophobic being different from the sol-gel formulation for adhesion, and drying of the impregnated textile material.
- the omniphobicity and/or hydrophobicity performances sought in the context of the present invention are achieved when there is only one cycle c) of impregnation of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation, said omniphobic or hydrophobic sol-gel formulation being different from the sol-gel tie formulation, and d) drying the impregnated textile material.
- the method can also comprise 3 successive cycles c) and d), of impregnation of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation, said omniphobic sol-gel formulation or hydrophobic being different from the sol-gel adhesion formulation, and d) drying of the impregnated textile material.
- the method can therefore advantageously comprise only one cycle of impregnation of the dried textile material obtained in step b) with an omniphobic or hydrophobic sol-gel formulation, said omniphobic or hydrophobic sol-gel formulation being different from the sol-gel formulation for gripping and drying the impregnated textile material. This also makes it possible to have a faster and easier process to implement.
- the drying steps b) and d) are generally carried out at a temperature of 120 to 180° C., for a period ranging from 2 to 10 minutes, preferably at 180° C. for 2 minutes.
- the sol-gel tie formulation used in the method according to the invention may comprise at least two silylated precursors, preferably chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS), (3-glycidyloxypropyl )trimethoxysilane (GPTMOS), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and aminopropyltriethoxysilane.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl )trimethoxysilane
- GPTEOS 3-glycidyloxypropyl)triethoxysilane
- aminopropyltriethoxysilane aminopropyltriethoxysilane.
- the at least two silylated precursors are a combination of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) or their mixture and a silylated precursor chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS ), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and aminopropyltriethoxysilane and mixtures thereof.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl)triethoxysilane
- aminopropyltriethoxysilane and mixtures thereof are examples of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxys
- the at least two silylated precursors are a combination of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) and their mixture and of a silylated precursor chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS ), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and mixtures thereof.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TMOS and aminopropyltriethoxysilane, or TEOS and GPTMOS, or TEOS and GPTEOS, or TEOS and aminopropyltriethoxysilane.
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TEOS and GPTMOS, or TEOS and GPTEOS. More preferably still, it is a mixture of tetraethoxysilane (TEOS) and (3-glycidyloxypropyl)triethoxysilane (GPTEOS).
- the sol-gel attachment formulation used in the method according to the invention may comprise an acid preferably chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic acid , preferably sulfamic acid.
- Sulfamic acid has proven to be particularly interesting since it contributes to the remarkable stability duration of the sol-gel adhesion formulations.
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TEOS and GPTMOS, or TEOS and GPTEOS, or TMOS and GPTMOS and sulfamic acid.
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TEOS and GPTMOS, or TEOS and GPTEOS and sulfamic acid.
- sol-gel tie formulation used in the method according to the invention is preferably free of zirconium alkoxide and/or sodium hypophosphite.
- the omniphobic sol-gel formulation used in the method according to the invention may comprise at least one silylated precursor, preferably chosen from 1H,1H,2H,2H-perfluorodecyltriethoxysilane (17FTEOS), 1H ,1H,2H,2H-perfluorooctyltriethoxysilane (13FTEOS), 1H,1H,2H,2H-perfluorooctyltrimethoxysilane (13FTMOS), 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (17FTMOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS).
- TEOS 1H,1H,2H,2H-perfluorodecyltriethoxysilane
- 13FTEOS 1H,1H,2H,2H-perfluorooctyltrieth
- the omniphobic sol-gel formulation used in the method according to the invention may comprise an acid preferably chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic, preferably sulfamic acid or hydrochloric acid, even more preferably sulfamic acid.
- the omniphobic sol-gel formulation used in the method according to the invention may comprise at least one silylated precursor, preferably chosen from 1H,1H,2H,2H-perfluorodecyltriethoxysilane ( 17FTEOS), 1H,1H,2H,2H-perfluorooctyltriethoxysilane (13FTEOS), 1H,1H,2H,2H-perfluorooctyltrimethoxysilane (13FTMOS), 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (17FTMOS) , or a mixture of one or more of these precursors with tetraethoxysilane (TEOS) and sulfamic acid.
- TEOS tetraethoxysilane
- sulfamic acid a mixture of one or more of these precursors with tetraethoxysilane (TEOS) and
- the hydrophobic sol-gel formulation used in the method according to the invention may comprise at least one silylated precursor, preferably chosen from hexadecyltriethoxysilane (HDTEOS), n-octadecyltriethoxysilane (ODTEOS), n-decyltriethoxysilane (DTEOS), dodecyltriethoxysilane (DDTEOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS).
- TEOS hexadecyltriethoxysilane
- ODTEOS n-octadecyltriethoxysilane
- DTEOS n-decyltriethoxysilane
- DDTEOS dodecyltriethoxysilane
- TEOS tetraethoxysilane
- the hydrophobic sol-gel formulation implemented in the method according to the invention may comprise an acid preferably chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic acid, preferably sulfamic acid or hydrochloric acid, even more preferably sulfamic acid.
- the hydrophobic sol-gel formulation used in the method according to the invention may comprise at least one silylated precursor, preferably chosen from hexadecyltriethoxysilane (HDTEOS), n-octadecyltriethoxysilane (ODTEOS ), n-decyltriethoxysilane (DTEOS), dodecyltriethoxysilane (DDTEOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS) and sulfamic acid.
- TEOS hexadecyltriethoxysilane
- ODTEOS n-octadecyltriethoxysilane
- DTEOS n-decyltriethoxysilane
- DDTEOS dodecyltriethoxysilane
- TEOS tetraethoxysilane
- the omniphobic and/or hydrophobic sol-gel formulations used in the method according to the invention advantageously comprise sulfamic acid.
- sulfamic acid has advantages in terms of stability of the soils obtained.
- sulfamic acid has the particularity of being able to be found in a zwitterionic form + H 3 NS0 3 in aqueous solution.
- sulfamic acid in its zwitterionic form stabilizes the silanol groups and prevents them from rapidly condensing according to the following scheme:
- the sol-gel cling, omniphobic and/or hydrophobic formulations used in the process according to the invention are aqueous formulations and optionally comprise one or more C1 to C4 aliphatic alcohols, chosen in particular from methanol, ethanol, propan-1-ol, isopropanol and butan-1-ol, preferably from methanol, ethanol, propan-1-ol and isopropanol, more preferably from ethanol and isopropanol.
- the C1 to C4 aliphatic alcohol is ethanol and/or isopropanol and in the case of hydrophobic sol-gel formulations the C1 to C4 aliphatic alcohol is ethanol.
- the binding sol-gel formulation preferably does not comprise any C1 to C4 aliphatic alcohol.
- aqueous formulation means a formulation whose solvent comprises water.
- the binding, omniphobic and/or hydrophobic sol-gel formulations used in the process according to the invention can also optionally comprise one or more C1 to C4 aliphatic alcohols which are miscible with water.
- the solvent of the sol-gel adhesion, omniphobic and/or hydrophobic formulations used in the process according to the invention can thus be water, or a mixture of water with one or more aliphatic alcohols in C1 to C4 , chosen in particular from methanol, ethanol, propan-1-ol, isopropanol and butan-1-ol, preferably from methanol, ethanol, propan-1-ol and isopropanol, more preferably from isopropanol and ethanol.
- the solvent in the case of omniphobic sol gel formulations, is water or a mixture of water and ethanol and/or isopropanol and in the case of hydrophobic sol gel formulations, the solvent is a mixture of water and ethanol.
- the solvent is advantageously water or a mixture of water and ethanol.
- the solvent advantageously contains from 1% to 100% by volume of water.
- the solvent may in particular advantageously contain from 40% to 100%, preferably from 50% to 100%, more preferably from 60 to 100% by volume of water.
- the solvent is water.
- the solvent may in particular advantageously contain from 10% to 100%, preferably from 14% to 100%, by volume of water.
- the solvent may in particular advantageously contain from 1 to 10%, preferably from 2 to 5%, by volume of water.
- the C1-C4 aliphatic alcohol or the mixture of C1-C4 aliphatic alcohols can represent from 0 to 50% by volume, preferably from 0 to 40% by volume of the solvent.
- the solvent of the sol-gel tie formulations does not contain any C1-C4 aliphatic alcohol.
- the solvent of the sol-gel tie formulations contains an aliphatic C1-C4 alcohol or a mixture of aliphatic C1-C4 alcohols, this may for example represent from 5 to 50%, in particular from 10 to 40% by volume of the solvent.
- the C1-C4 aliphatic alcohol or the mixture of C1-C4 aliphatic alcohols can represent from 0 to 95% by volume, preferably from 0 to 90% by volume.
- solvent preferably from 50 to 95%, preferably 60 to 90% by volume of the solvent.
- the solvent of the omniphobic sol-gel formulations does not contain a C1-C4 aliphatic alcohol.
- the C1-C4 aliphatic alcohol or the mixture of C1-C4 aliphatic alcohols can advantageously represent from 55 to 99% by volume, preferably from 70 to 98% by volume. volume of the solvent.
- the alcohol represents from 80 to 99%, preferably 85 to 98% by volume of the solvent.
- the solvent advantageously represents 40 to 95% by volume, preferably 50 to 90% by volume, of the sol-gel adhesion, omniphobic and hydrophobic formulations.
- the solvent can in particular advantageously represent from 70 to 90% by volume, preferably from 80 to 90% by volume, even more preferably from 82 to 88% by volume of the sol-gel tie formulations.
- the solvent can in particular advantageously represent from 40 to 95% by volume, preferably from 50 to 90% by volume of the omniphobic sol-gel formulations.
- the solvent can in particular advantageously represent from 60 to 90% by volume, preferably from 75 to 85% by volume of the hydrophobic sol-gel formulations.
- the silylated precursor or the mixture of silylated precursors advantageously represents from 5 to 70% by volume, preferably from 10 to 55% by volume, even more preferably from 10 to 52% by volume of sol-gel gripping, omniphobic and hydrophobic formulations.
- the silylated precursors advantageously represent 5 to 30% by volume, preferably 10 to 20% by volume, of the sol-gel tie formulations.
- the silylated precursor or the mixture of silylated precursors advantageously represent 5 to 70% by volume, preferably 10 to 55% by volume, of the omniphobic sol-gel formulations.
- the silylated precursor or the mixture of silylated precursors advantageously represent 10 to 40% by volume, preferably 15 to 25% by volume, of the hydrophobic sol-gel formulations.
- a second object of the invention is a sol-gel tie formulation comprising at least two silylated precursors, a first precursor preferably being chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS), a second precursor being preferably chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS), (3-glycidyloxypropyl)triethoxysilane (GPTEOS), aminopropyltriethoxysilane, optionally, the combination of TMOS/GPTMOS precursors being excluded, and comprising an acid advantageously chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic acid, preferably sulfamic acid, said sol-gel formulation being free of polycarboxylic acid.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- the sol-gel tie formulation comprises sulfamic acid and at least two silylated precursors, a first precursor preferably being chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS), a second precursor preferably being chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS), (3-glycidyloxypropyl)triethoxysilane (GPTEOS), optionally, the combination of TMOS/GPTMOS precursors being excluded, said sol-gel formulation being free of polycarboxylic acid.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl
- the sol-gel tie formulation comprises sulfamic acid and hydrochloric acid and at least two silylated precursors, a first precursor preferably being chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS), a second precursor preferably being chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS), (3-glycidyloxypropyl)triethoxysilane (GPTEOS), optionally, the combination of TMOS/GPTMOS precursors being excluded from said formulation sol-gel being free of polycarboxylic acid.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl
- the sol-gel tie formulation may in particular comprise sulfamic acid, generally provided in the form of an aqueous solution.
- sulfamic acid generally provided in the form of an aqueous solution.
- the presence of sulfamic acid makes it possible to contribute to the remarkable duration of stability of the sol-gel adhesion formulations, which can be greater than 1 month.
- the at least two silylated precursors are a combination of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) or their mixture and of a silylated precursor chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS), (3-glycidyloxypropyl )triethoxysilane (GPTEOS) and aminopropyltriethoxysilane and mixtures thereof.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl )triethoxysilane
- aminopropyltriethoxysilane and mixtures thereof aminopropyltriethoxysilane and mixtures thereof.
- the at least two silylated precursors are a combination of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) or their mixture and a silylated precursor chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS ), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and mixtures thereof.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl
- the at least two silylated precursors are a combination of a silylated precursor chosen from tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) and their mixture and of a silylated precursor chosen from (3-glycidyloxypropyl)trimethoxysilane (GPTMOS ), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and mixtures thereof.
- TMOS tetramethoxysilane
- TEOS tetraethoxysilane
- GPTMOS 3-glycidyloxypropyl
- GPTEOS 3-glycidyloxypropyl
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TMOS and aminopropyltriethoxysilane, or TEOS and GPTMOS, or TEOS and GPTEOS, or TEOS and aminopropyltriethoxysilane.
- the sol-gel tie formulation according to the invention may in particular comprise a mixture of the silylated precursors TMOS and GPTEOS, or TEOS and GPTMOS, or TEOS and GPTEOS. More preferably still, it is a mixture of tetraethoxysilane (TEOS) and (3-glycidyloxypropyl)triethoxysilane (GPTEOS).
- the sol-gel tie formulation according to the invention is preferably free of zirconium alkoxide and/or sodium hypophosphite.
- the sol-gel adhesion formulation according to the invention may be free of plasticizer.
- the sol-gel tie formulation according to the invention may be free of chelating agent.
- the sol-gel adhesion formulation according to the invention may be free of viscosity modifying agent.
- the sol-gel tie formulation according to the invention is preferably an aqueous formulation, optionally comprising at least one C1 to C4 aliphatic alcohol, chosen in particular from methanol, ethanol, propan-1-ol , isopropanol and butan-1-ol, preferably from methanol, ethanol, propan-1-ol and isopropanol, more preferably the C1 to C4 aliphatic alcohol is ethanol.
- the sol-gel tie formulation may thus in particular also comprise ethanol. Particularly advantageous performance in terms of stability has been obtained for the sol-gel tie formulation comprising a mixture of tetraethoxysilane (TEOS), (3-glycidyloxypropyl)triethoxysilane (GPTEOS) and sulfamic acid.
- TEOS tetraethoxysilane
- GPTEOS 3-glycidyloxypropyl)triethoxysilane
- This sol-gel adhesion formulation has a stability period greater than 1 month.
- This formulation can optionally comprise an alcohol, in particular ethanol.
- the stability of the sol-gel formulations discussed here corresponds to their homogeneity.
- the homogeneity of a mixture corresponds to the fact that this mixture is composed of only a single homogeneous phase of refractive index n as opposed to a demixing of the mixture into 2 or more immiscible phases of refractive index n', n”, n'”, etc....
- a homogeneous phase is therefore defined by a single refractive index, n, of light.
- a clear phase is a phase devoid of particles that can scatter light.
- the lifetime of the homogeneous and clear phase of the soil formulations is monitored using the light transmission analysis apparatus (Turbican Lab, Formulation).
- the measurement protocol applied is as follows: 10 mL of soil of refractive index n are introduced into the dedicated container, the transmission of incident light passing through the soil is measured and monitored over time. Homogeneous and clear soil expresses a constant transmission percentage over time (an example is shown in Figure 9 with a transmission percentage of 92 ⁇ 1%). If the soil demixes or becomes cloudy over time, the destabilization is characterized by a change in the percentage of transmission due either to a change in refractive index or to the scattering of light by the particles, causing the light transmission to drop. in this 2nd case.
- the increased stability of the sol-gel tie formulations according to the invention is of major interest for the industrialization of a process for coating textile material because such a coating process is then carried out continuously on rolls. fabrics that can measure several kilometers in length. Formulations having long stability times are then necessary to effectively implement this type of process on an industrial scale.
- the molar proportions of tetramethoxysilane or tetraethoxysilane (TMOS or TEOS) relative to the other (s) silylated precursor(s) can vary from 1 to 9, preferably from 1.5 to 5, even more preferably from 1.5 to 4.
- the hook formulation according to the invention can be used for applying a hook formulation to a textile by impregnation.
- the bonding layer thus formed on the textile can then be used to bond any type of sol-gel formulation.
- the presence of this tie layer according to the invention moreover quite advantageously makes it possible to provide increased washing stability of the coating deposited on the tie layer.
- Another object of the invention is an omniphobic sol-gel formulation comprising at least one silylated precursor preferably chosen from 1H,1H,2H,2H-perfluorodecyltriethoxysilane (17FTEOS), 1H,H,H, H-perfluorooctyltriethoxysilane (13FTEOS), 1H,1H,2H,2H-perfluorooctyltrimethoxysilane (13FTMOS) and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (17FTMOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS), and comprising an acid, advantageously chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic acid, preferably sulfamic acid or hydrochloric acid , even more preferably
- the omniphobic sol-gel formulation comprises sulfamic acid and at least one silylated precursor preferably chosen from 1H,1H,2H,2H-perfluorodecyltriethoxysilane (17FTEOS), 1H, H,H,H-perfluorooctyltriethoxysilane
- the omniphobic sol-gel formulation can advantageously comprise only one silylated precursor, thus making this formulation simpler and easier to implement.
- the omniphobic sol-gel formulation comprises an acid, generally provided in the form of an aqueous solution.
- This acid is preferably chosen from sulfamic acid or hydrochloric acid, more preferably it is sulfamic acid.
- the omniphobic sol-gel formulation according to the invention is preferably an aqueous formulation, as defined above. It may therefore in particular comprise a mixture of water and alcohol as solvent.
- sulfamic acid and alcohol makes it possible to contribute to a remarkable duration of stability of the omniphobic sol-gel formulations which can range from 22 to 48 hours.
- This sol-gel formulation omniphobe may comprise an alcohol, in particular ethanol or isopropanol, it then has a stability period ranging from 22 to 48 hours.
- Another object of the invention is a hydrophobic sol-gel formulation comprising at least one silylated precursor preferably chosen from hexadecyltriethoxysilane (HDTEOS), n-octadecyltriethoxysilane (ODTEOS), n-decyltriethoxysilane (DTEOS) and dodecyltriethoxysilane (DDTEOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS), and comprising an acid, advantageously chosen from sulfamic acid, hydrochloric acid, sulfuric acid, nitric acid, paratoluenesulfonic acid, preferably sulfamic acid or hydrochloric acid, even more preferably sulfamic acid.
- HDTEOS hexadecyltriethoxysilane
- ODTEOS n-octadecyltriethoxysilane
- the hydrophobic sol-gel formulation comprises sulfamic acid and at least one silylated precursor preferably chosen from hexadecyltriethoxysilane (HDTEOS), n-octadecyltriethoxysilane (ODTEOS), n-decyltriethoxysilane (DTEOS) and dodecyltriethoxysilane (DDTEOS), or a mixture of one or more of these precursors with tetraethoxysilane (TEOS).
- HDTEOS hexadecyltriethoxysilane
- ODTEOS n-octadecyltriethoxysilane
- DTEOS n-decyltriethoxysilane
- DDTEOS dodecyltriethoxysilane
- hydrophobic sol-gel formulations which can range from 1 day to 6 days at least.
- hydrophobic sol-gel formulations comprising hexadecyltriethoxysilane (HDTEOS) and sulfamic acid or comprising hexadecyltriethoxysilane (HDTEOS), tetraethoxysilane (TEOS) and sulfamic acid.
- HDTEOS hexadecyltriethoxysilane
- TEOS tetraethoxysilane
- sulfamic acid can comprise an alcohol, in particular ethanol.
- the hydrophobic sol-gel formulation according to the invention is preferably an aqueous formulation as defined above. It may therefore in particular comprise a mixture of water and alcohol as solvent.
- the amounts of solvent, water, alcohol and silylated precursors that can be used in the sol-gel formulations are those described above with respect to the process for coating a textile material according to invention.
- the invention also relates to an impregnated textile material comprising at least a first gripping layer obtained by applying a sol-gel gripping formulation according to the invention and at least a second omniphobic or hydrophobic layer on the above the adhesion layer.
- This omniphobic or hydrophobic layer can in particular be obtained by applying an omniphobic or hydrophobic sol-gel formulation as described above.
- This textile material according to the invention may in particular comprise at least a first tie layer obtained by applying a sol-gel tie formulation according to the invention and at least a second omniphobic layer above the tie layer obtained by applying an omniphobic sol-gel formulation according to the invention.
- This textile material according to the invention may also comprise at least a first tie layer obtained by applying a sol-gel tie formulation according to the invention and at least a second hydrophobic layer above the adhesion layer obtained by applying a hydrophobic sol-gel formulation according to the invention.
- Another object of the invention is an impregnated textile material comprising at least a first grip layer and at least a second omniphobic layer above the grip layer obtained by application of a sol-gel formulation omniphobic according to the invention.
- Another object of the invention is an impregnated textile material comprising at least a first adhesion layer and at least a second hydrophobic layer above the adhesion layer obtained by application of a sol-gel formulation hydrophobic according to the invention.
- a textile material impregnated according to the invention can be obtained by the coating process according to the invention described above. It is therefore a textile material impregnated with at least one tie layer obtained by applying a sol-gel tie formulation according to the invention, and at least one omniphobic or hydrophobic layer obtained by application of an omniphobic or hydrophobic sol-gel formulation according to the invention. All the details and embodiments set out above for the nature of the textile material and the sol-gel formulations are also valid for the impregnated textile material according to the invention.
- the coating layers form a sheath around the fibers which constitute the impregnated textile material.
- the impregnated textile material according to the invention is in particular characterized in that it has a hydrophobicity measured by contact angle greater than 120 degrees, preferably greater than 130 degrees, even more preferably greater than 140 degrees.
- the contact angle is measured using an OCA 15EC (SCA 20) goniometer. 10 drops of 10 ⁇ L of water are deposited on the fabric using a needle (Hamilton 500 mL, HAMI91022) for each measurement. A coating is said to be hydrophobic when the contact angle of a drop of water with the surface of the support is greater than 90 degrees.
- the impregnated textile material according to the invention in which the second layer is an omniphobic layer is in particular characterized in that it has an oil repellency measured by contact angle greater than 90 degrees, preferably greater than 100 degrees, even more preferably greater than 110 degrees or measured by an oil repellency index greater than 3, advantageously greater than 4, preferably greater than 5, even more preferably greater than 6.
- the contact angle is measured using an OCA 15EC (SCA 20) goniometer. 4 to 8 drops of 10pL of an alkane are placed on the fabric using a needle (Hamilton 500mL, HAMI91022) for each measurement. A coating is said to be oleophobic when the contact angle of an alkane drop with the surface of the support is greater than 90 degrees.
- drops of 50 ⁇ l of alkanes are deposited using a micropipette on at least 4 different locations distributed over the surface of the fabric.
- the drops are observed for 30 s and their shape is rated from A to D according to the references of the ISO 14419 standard ( Figure 3).
- the oil repellency index of the coating is that of the alkane (n) whose shape of the drop was rated A. If the drop obtains the grade B, the alkane is changed by taking a lower index n-1 for which the drop obtains the grade A.
- the index n-1 for the coating to be rated n/(n-1).
- a major advantage of the present invention is that the coating layers applied to the textile material are very resistant to washing, the textile material can therefore be durable. Indeed, the impregnated textile materials according to the invention resist without loss of hydrophobicity and/or oil repellency to at least 30 washes, or even up to at least 70 washes.
- Another major advantage of the present invention is that the coating layers applied to the textile material make it resistant to strong acids and bases.
- a particular object of the invention is personal protective equipment comprising the impregnated textile material according to the invention.
- This personal protective equipment can for example be a full suit, trousers, a jacket, gloves, balaclavas, socks, masks.
- the personal protective equipment is particularly suitable for protection against splashes of liquids containing corrosive and/or toxic chemical products (solutions aqueous acids or bases, oils, hydrophilic or hydrophobic organic solvents).
- the textile materials having the highest oil repellency indices, in particular equal to or greater than 6, are particularly suitable for personal protective equipment for armies, police, firefighters, industry.
- the omniphobic formulations can also be deposited by spraying on solid supports, glass, steel, brick, wall covering, as anti-graffiti coatings because the acrylic spray paints used for graffiti do not adhere to these coatings. omniphobic.
- omniphobic and hydrophobic textile materials are of interest for use in the collection of polluting liquid, in particular oil, accidentally spilled in the open sea. It is thus possible for this application to assemble an omniphobic textile material, such as an omniphobic impregnated textile material according to the invention, with another hydrophobic textile material, such as a hydrophobic impregnated textile material according to the invention, to form a third textile material having the combined properties of the assembled textiles.
- FIG. 1 shows a photo of a lab scarf.
- FIG. 2 shows a photo of the laboratory spray system placed in a fume hood seen from the side.
- FIG. 3 shows an example of classification for oil repellency tests according to the standard
- the oil repellency index n of the coating is that of the alkane (n) for which the shape of the drop is rated A.
- FIG. 4 shows the shapes of drops of water and alkanes (50mI_) deposited on a new coated fabric according to the P(3) F process. From left to right: water, hexadecane (index 3), dodecane (index 5), decane (index 6), octane (index 7).
- FIG. 5 shows photos of the contact angles of drops of water and decane (10mI_) on a fabric coated according to the P(15)F process when new (Ow) and washed 30 times (30w).
- FIG. 6 shows an SEM image of the blank K5204 (Kermel®/Lenzing FR® 50/50) fabric. 500 times magnification.
- FIG. 7 shows an SEM image of the K5204 fabric (Kermel®/Lenzing FR® 50/50) of FIG. 6 coated according to the P(3) F process with a magnification of 500 times.
- FIG. 8 shows an SEM image of the K5204 fabric (Kermel®/Lenzing FR® 50/50) of FIG. 6 coated according to the P(3) F process with a magnification of 1000 times.
- FIG. 9 shows an example of light transmission analysis of the ground(6) 0mnip with the Turbiscan lab device at different temperatures (30°C, 35°C, 40°C).
- the % transmission of the intensity of a light beam passing through the sample is here 92 ⁇ 1%.
- the drop in long-term transmission announces either the presence of scattering particles or the separation of the ground with a change in the refractive index of the liquid.
- FIG. 10 shows the results of resistance tests of the omniphobic coating to strong acids and bases.
- Tetramethoxysilane (CAS No: 681-84-5) (TMOS, Acros Organics, 99%); Tetraethoxysilane (CAS No: 78-10-4) (TEOS, Acros Organics, 98%); (3-Glycidyloxypropyl)trimethoxysilane (CAS No: 2530-83-8) (GPTMOS, Sigma-Aldrich, >98%);
- Ethanol (CAS No: 64-17-5) (EtOH, Carlo Erba, HPLC-PLUS-Gradient);
- Kermel®/Lenzing FR® 50/50 Kermel-viscose fabric
- the mixed fabric has a surface mass of 260 g/m 2 and an air permeability of 57.5 L/m 2 .s (average value measured according to the IS09237 standard under 100 Pa).
- Kermel® is a polyamide-imide that provides flame retardant and thermostable performance.
- Lenzing FR® is a flame retardant viscose (Modal manufacturing process) made of cellulose. Thus, the chemical nature of the two fibers of the fabric is very different.
- Cotton 100% cotton with a surface mass of 180g/m 2 .
- Cotton is made of cellulose and contains hydroxyl functions.
- the tests were carried out with fabric samples of A4 (21 ⁇ 30) cm 2 format or with 100 m of fabric provided with a width of 30 cm.
- the coatings were carried out with various sol-gel formulations either by padding with a laboratory padding or by spraying with a motorized spraying system.
- the wet carryover which represents the quantity of soil carried away by the fabric before drying, is of the order of 43 ⁇ 3%.
- the carry-over rate is calculated by weighing the textile before and after treatment.
- the principle is to impregnate the fabric with a bath containing the desired product formulation, and squeeze it out, i.e. make the product penetrate and remove the excess bath from the fabric by exerting pressure between 2 rollers covered with elastomers. This makes it possible to control the quantity of bath deposited, one then speaks of the expressing rate or take-up rate.
- the material is treated in the heart and on both sides and retains its textile appearance.
- the textile is weighed again after the pressing step but before the drying step.
- the ratio [(Weight after deposition) - (Weight before deposition)]/(Weight before deposition) gives the take-up rate.
- Example 1 preparation of the attachment formulations (SOIACC)
- SOI(1)ACC contains 12.5% v/v of silylated precursors with a molar ratio of TMOS/GPTMOS of 4. SOI(1)ACC has a stability of 6H.
- SOI(2)ACC In a hermetically sealed glass bottle, 6.0 mL of TMOS, 6.0 mL of GPTMOS and 77.0 mL of ultrapure water are successively added. The mixture is stirred at ambient temperature (20-24° C.) at 500 rpm for 1 hour using an IKA WERKE RO10 power multiple stirring plate. Sol(2) A cc contains 13.5% v/v of silylated precursors with a TMOS/GPTMOS molar ratio of 1.5. Sol(2) A cc has a stability of 6H. [0150] SOI(3)ACC
- TMOS TMOS
- GPTMOS GPTMOS
- ultrapure water 77 mL
- the SOI(3)ACC contains 13.5% v/v of silylated precursors with a molar ratio of TMOS/GPTMOS of 1.5.
- SOI(3)ACC has a stability of 6H.
- aqueous solution of sulfamic acid In a hermetically sealed glass bottle, 9.5 mL of TEOS, 8.1 mL of GPTEOS, 82.4 mL of 3.2 mmol/L aqueous solution of sulfamic acid are successively added. The mixture is stirred at room temperature (20-24°C) at 500 rpm for 24 hours using of an IKA multi-shaker plate.
- the SOI(5)ACC contains 17.6% v/v of silylated precursors with a molar ratio of TEOS/GPTEOS of 1.5.
- the SOI(5)ACC has a stability of duration greater than 1 month.
- SOI(6)ACC contains 17.6% v/v of silylated precursors with a molar ratio of TEOS/GPTEOS of 1.5 and 10% v/v of ethanol.
- the SOI(6)ACC has a stability of duration greater than 2 months.
- SOI(8)ACC contains 17.6% v/v of silylated precursors with a molar ratio of TEOS/GPTEOS of 1.5 and 30% v/v of ethanol.
- the SOI(8)ACC has a stability of duration greater than 1 month.
- Example 2 preparation of omniphobic formulations (Solomnip)
- Omnip Sol(10) contains 48% v/v of silylated precursors with a TEOS/17FTEOS molar ratio of 2.5 and 44.9% v/v of EtOH.
- the Sol(10) om nip has a stability of 2H30.
- SOI(1)HYDRO contains 19.4% v/v silylated precursor and 77.4% v/v EtOH. SOI(1)HYDRO has a stability greater than 4H.
- SOI(3)HYDRO contains 19.6% v/v silylated precursor and 78.2% v/v EtOH. SOI(3)HYDRO has a stability of 1J.
- SOI(4)HYDRO contains 19.6% v/v silylated precursor and 78.2% v/v EtOH.
- SOI(4) H YDRO has a stability of 1J.
- Example 4 preparation of fabrics coated by padding ( Figure 1) according to the invention
- the Sol(1)ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven. Immediately afterwards, a 2 nd deposition of Sol(1) A is carried out by padding at the same speed and the fabric is again dried for 2 min at 120° C. in an oven. The fabric is then stored for 18 hours in a desiccator with a relative humidity of 50%, at ambient temperature (20-24° C.) and atmospheric pressure. Sol(10) omnip is then deposited by padding on the fabric at a speed of 2 m/min.
- the fabric After pressing, the fabric is dried for 2 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the Sol(1)ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven. Immediately afterwards, a 2 nd deposition of Sol(1)ACC is carried out by padding at the same speed and the fabric is again dried for 2 min at 120° C. in an oven. The fabric is then stored for 18 hours in a desiccator with a relative humidity of 50%, at ambient temperature (20-24° C.) and atmospheric pressure. Sol(10) Omnip is then deposited by padding on the fabric at a speed of 2 m/min.
- the fabric After pressing, the fabric is dried for 40 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the Sol(1)ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(9) 0mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(4) F The Sol(1)ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven. Immediately afterwards, a 2 nd deposition of Sol(1)ACC is carried out by padding at the same speed and the fabric is again dried for 2 min at 120° C. in an oven. The fabric is then stored for 18 hours in a desiccator with a relative humidity of 50%, at ambient temperature (20-24° C.) and atmospheric pressure. Sol(1) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C.
- the Sol(1)ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven. Immediately afterwards, a 2 nd deposition of Sol(1) A is carried out by padding at the same speed and the fabric is again dried for 2 min at 120° C. in an oven. The fabric is then stored for 18 hours in a desiccator with a relative humidity of 50%, at ambient temperature (20-24° C.) and atmospheric pressure. Sol(9) 0mnip is then deposited by padding on the fabric at a speed of 2 m/min.
- the fabric After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(2) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(9) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the SOI(2) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. The Sol(3) 0mnip is then deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(8) F The SOI(3) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(3) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(3) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(3) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min. The fabric is dried for 2 min at 120° C. in an oven, then left to cool in the open air at room temperature (20- 24°C) and atmospheric pressure before being stored for washing, water repellency and oil repellency tests.
- the SOI(4) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(3) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(2) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(2) 0 mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(12) F The SOI(3) ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(5) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(3) 0mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(14) F The SOI(6) ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(5) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at speed 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(16) F The SOI(6) ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure. before being stored for washing, water repellency and oil repellency tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 5 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) 0 mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 5 min at 120° C. in an oven, then is then kept for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before being stored for the washing, water repellency and oil repellency tests.
- P(19) F The SOI(6) ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 150° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 150°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 150° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 minutes at 150°C in an oven and then stored for 16 to 18 hours in a desiccator with relative humidity. of 50%, at room temperature (20-24°C) and atmospheric pressure before being stored for washing, water repellency and oil repellency tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 180° C. in an oven, then left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 min at 180°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 180°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 180° C. in an oven, then left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) 0 mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 minutes at 180°C in an oven and then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before to be stored for washing, hydrophobicity and oleophobicity tests. [0195] P(24) F
- the SOI(5) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure. Sol(8) omnip is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure for 10 to 30 min, before undergoing the final padding/ expression in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before being stored for washing, water repellency and oil repellency tests.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 180° C. in an oven, then left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure.
- the SOI(1) HYDRO is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is dried for 2 minutes at 180°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure. before being stored for hydrophobicity testing.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is dried for 2 min at 150° C. in an oven, then is left to cool and mature for 1 to 2 weeks in the open air, at room temperature (20-24° C.) and atmospheric pressure. The Sol(12) 0mnip is then deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature in the air, at room temperature (20 - 24°C) and atmospheric pressure in the laboratory for 2 weeks, before being stored for washing, hydrophobicity and drying tests. oleophobia. [0198] P(27) F
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature for 1 week to 3 months in the air, at ambient temperature (20-24° C.) and atmospheric pressure in the laboratory. The Sol(12) 0mnip is then deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature in the air, at room temperature (20 - 24°C) and atmospheric pressure in the laboratory for 2 weeks, before being stored for washing, hydrophobicity and drying tests. oleophobia.
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature for 1 week to 3 months in the air, at ambient temperature (20-24° C.) and atmospheric pressure in the laboratory. The Sol(13) 0mnip is then deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature in the air, at room temperature (20 - 24°C) and atmospheric pressure in the laboratory for 2 weeks, before being stored for washing, hydrophobicity and drying tests. oleophobia. [0200] P(29) F
- the SOI(6) ACC is deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature for 1 week to 3 months in the air, at ambient temperature (20-24° C.) and atmospheric pressure in the laboratory. The Sol(13) 0mnip is then deposited by padding on the fabric at the speed of 2 m/min. After pressing, the fabric is left to dry and mature at 40°C in the oven for 4 days then mature for 3 days in the air, at room temperature (20 - 24°C) and atmospheric pressure in the laboratory, before being stored for washing, water repellency and oil repellency tests.
- P(30) F The SOI(6) ACC is deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is left to dry for 1 day in the open air, at room temperature (20-24° C.) and atmospheric pressure in the laboratory. The fabric is then left to mature at 40° C. in the oven for 1 day then 5 days in the air, at room temperature (20-24° C.) and atmospheric pressure in the laboratory. Sol(13) 0mmp is then deposited by padding on the fabric at a speed of 2 m/min. After pressing, the fabric is left to dry and mature at 40°C in the oven for 4 days then 3 days in the air, at room temperature (20 - 24°C) and atmospheric pressure in the laboratory, before being stored. for washout, water repellency and oil repellency tests.
- Example 5 preparation of spray-coated fabrics ( Figure 2) according to the invention
- the SOI(3) ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 6 m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then is left to cool for 30 min to 1 h in the open air, at room temperature (20-24° C.) and atmospheric pressure.
- the Sol(8) 0mnip is then deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, in a double pass, the latter being moved at a speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before being stored for washing, water repellency and oil repellency tests.
- the SOI(3)ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 9 m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then left to cool for 30 min to 1 h in the open air, at ambient temperature (20-24° C.) and atmospheric pressure.
- the Sol(8) 0 mnip is then deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, in a double pass, the latter being moved at a speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- P(3) Sp The SOI(3)ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 12 m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then left to cool for 30 min to 1 h in the open air, at ambient temperature (20-24° C.) and atmospheric pressure.
- the Sol(8) 0 mnip is then deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, in a double pass, the latter being moved at a speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before to be stored for washing, water repellency and oil repellency tests [0206]
- the SOI(3)ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 12m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then left to cool for 30 min to 1 h in the open air, at ambient temperature (20-24° C.) and atmospheric pressure.
- the Sol(8) 0 mnip is then deposited by spray (pressure 4 bars) at a distance of 20 cm from the fabric, in a double pass, the latter being moved at a speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(3)ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 12 m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then left to cool for 30 min to 1 h in the open air, at ambient temperature (20-24° C.) and atmospheric pressure.
- the Sol(8) 0 mnip is then deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, in a double pass, the latter being moved at a speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- the SOI(6)ACC is deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, the latter being moved at a speed of 9 m/min.
- the assembly is placed in an enclosure under pumping for the evacuation of the ethanol vapours. After deposition, the fabric is dried for 2 min at 120° C. in an oven, then left to cool for 29 h in the open air, at room temperature (20-24° C.) and atmospheric pressure.
- the Sol(11 ) om niP is then deposited by spray (pressure 4 bars) at a distance of 10 cm from the fabric, in double passage, the latter being moved at the speed of 9 m/min.
- the fabric After deposition, the fabric is compressed using a 3kg roller and dried for 10 min at 120°C in an oven, then left to cool to room temperature (20 - 24°C) and laboratory atmospheric pressure. for 10 to 30 min, before undergoing the last padding/squeezing in a 0.065 mol/L sodium hydroxide solution at a speed of 2 m/min.
- the fabric is dried for 2 min at 120°C in an oven, then stored for 16 to 18 hours in a desiccator with a relative humidity of 50%, at room temperature (20-24°C) and atmospheric pressure before be stored for washing, hydrophobicity and oleophobicity tests.
- Example 6 Tests of the hydrophobic and oleophobic properties, permeability and resistance of the fabrics prepared according to the invention to washings and to strong acids and bases
- the washing tests (1, 5, 10, 15, 20, 25, 30, 40, 50, 60, 70, and 80 washes) are carried out according to the ISO 6330 standard.
- the different fabrics undergo a washing cycle of 2h in a machine with horizontal axis and front loading. Washing is carried out at 60° C., in the presence of 77% ECE detergent (detergent A reference No. 3), 20% sodium perborate tetrahydrate, 3% tetra-acetyl-ethylene-diamine (TAED). Spinning is carried out at 1200 rpm.
- the fabrics are dried at 95°C using a tumble dryer for 45 min after each wash.
- drops of 50 mI_ (approximately 5 mm in diameter) of water are deposited using a micropipette on at least 5 different locations distributed over the surface of the fabric.
- the drops are observed for 30 ⁇ 2 s (minimum) at an angle of 45°C.
- the fabric is shaken to remove the drops of water.
- the test is passed when the back of the fabric has remained dry.
- the contact angle of the water on the coating is measured.
- the contact angle is measured using an OCA 15EC (SCA 20) goniometer. 10 drops of 10pL of water are placed on the fabric using a needle (Hamilton 500mL, HAMI91022) for each measurement. A coating is said to be hydrophobic when the contact angle of a drop of water is greater than 90 degrees.
- drops of 50 ⁇ L of alkanes are deposited using a micropipette on at least 4 different locations distributed over the surface of the fabric.
- the drops are observed for 30 s and their shape is graded according to the references of the ISO 14419 standard.
- the grades assigned range from A to D for the shape of the drop.
- a drop of an alkane of index n is placed on the surface of a coated fabric. If the drop is very round (grade A), the test is successful and the index n is assigned to the coating. If the drop obtains the note B, the alkane is changed by taking a lower index n-1 for which the drop obtains the note A.
- the contact angle is measured using an OCA 15EC (SCA 20) goniometer. 4 to 8 drops of 10pL of an alkane are placed on the fabric using a needle (Hamilton 500mL, HAMI91022) for each measurement. A coating is said to be oleophobic when the contact angle of an alkane drop is greater than 90 degrees
- Figure 4 An example of visual analysis of water and oil repellency with various alkanes is shown in Figure 4.
- Figure 5 gives an example of contact angle measurements with a new coated fabric that has been washed 30 times.
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- Organic Chemistry (AREA)
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Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2104217A FR3122190A1 (fr) | 2021-04-22 | 2021-04-22 | Procédé de revêtement de matériaux textiles |
| PCT/FR2022/050764 WO2022223934A1 (fr) | 2021-04-22 | 2022-04-21 | Procédé de revêtement de matériaux textiles |
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| Publication Number | Publication Date |
|---|---|
| EP4326938A1 true EP4326938A1 (fr) | 2024-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| EP22735513.8A Pending EP4326938A1 (fr) | 2021-04-22 | 2022-04-21 | Procédé de revêtement de matériaux textiles |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240218588A1 (fr) |
| EP (1) | EP4326938A1 (fr) |
| FR (1) | FR3122190A1 (fr) |
| WO (1) | WO2022223934A1 (fr) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3734687A (en) * | 1969-04-04 | 1973-05-22 | Fmc Corp | A fabric finished with a fluorinated quarternized halomethyl ether |
| US5527271A (en) * | 1994-03-30 | 1996-06-18 | Bristol-Myers Squibb Co. | Thermoplastic hydrogel impregnated composite material |
| WO2002002862A2 (fr) * | 2000-06-30 | 2002-01-10 | 3M Innovative Properties Company | Traitement de substrats fibreux avec des silsesquioxanes et des anti-taches |
| DE102004062742A1 (de) * | 2004-12-27 | 2006-07-06 | Degussa Ag | Textile Substrate mit selbstreinigenden Eigenschaften (Lotuseffekt) |
| FR2984343B1 (fr) | 2011-12-20 | 2013-12-20 | Inst Francais Textile & Habillement | Procede d'obtention par voie sol-gel d'un revetement fonctionnel durable pour supports, notamment textiles, et revetement ainsi obtenu |
| US9694388B2 (en) * | 2013-05-14 | 2017-07-04 | University Of Houston System | Waterproof coating with nanoscopic/microscopic features and methods of making same |
| SG11201703901WA (en) * | 2014-11-12 | 2017-06-29 | Univ Houston System | Soil-resistant, stain-resistant fluorine-free coatings and methods of applying on materials |
| NZ732731A (en) * | 2014-11-12 | 2020-08-28 | Univ Houston System | Soil-resistant, stain-resistant coatings and methods of applying on textile or other flexible materials |
| FR3057581B1 (fr) | 2016-10-14 | 2021-12-10 | Commissariat Energie Atomique | Procede de revetement de materiaux textiles |
| CN106978067B (zh) * | 2017-03-29 | 2019-07-05 | 福耀玻璃工业集团股份有限公司 | 一种防雾涂液、防雾玻璃窗及其制造方法 |
| CN108546429A (zh) * | 2018-04-03 | 2018-09-18 | 广州保赐利化工有限公司 | 一种用于汽车玻璃的油水双疏涂层液 |
| CN109518468A (zh) * | 2018-11-13 | 2019-03-26 | 疏博(上海)纳米科技有限公司 | 一种有机硅聚合物超疏水织物整理剂的制备及应用 |
| CN111335042A (zh) * | 2020-04-14 | 2020-06-26 | 青岛大学 | 一种超疏水海藻纤维织物及其制备方法和应用 |
-
2021
- 2021-04-22 FR FR2104217A patent/FR3122190A1/fr active Pending
-
2022
- 2022-04-21 US US18/556,554 patent/US20240218588A1/en active Pending
- 2022-04-21 WO PCT/FR2022/050764 patent/WO2022223934A1/fr not_active Ceased
- 2022-04-21 EP EP22735513.8A patent/EP4326938A1/fr active Pending
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| Publication number | Publication date |
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| WO2022223934A1 (fr) | 2022-10-27 |
| US20240218588A1 (en) | 2024-07-04 |
| FR3122190A1 (fr) | 2022-10-28 |
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