CN100515757C - Improved elastomer coated, protective barrier fabric and process for producing same - Google Patents
Improved elastomer coated, protective barrier fabric and process for producing same Download PDFInfo
- Publication number
- CN100515757C CN100515757C CNB2005800197273A CN200580019727A CN100515757C CN 100515757 C CN100515757 C CN 100515757C CN B2005800197273 A CNB2005800197273 A CN B2005800197273A CN 200580019727 A CN200580019727 A CN 200580019727A CN 100515757 C CN100515757 C CN 100515757C
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- fabric
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- oil
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- 239000004744 fabric Substances 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 94
- 230000004888 barrier function Effects 0.000 title claims abstract description 91
- 230000008569 process Effects 0.000 title abstract description 15
- 230000001681 protective effect Effects 0.000 title description 12
- 229920001971 elastomer Polymers 0.000 title description 10
- 239000000806 elastomer Substances 0.000 title description 10
- 238000000576 coating method Methods 0.000 claims abstract description 127
- -1 polyoxysiloxane Polymers 0.000 claims abstract description 125
- 239000000203 mixture Substances 0.000 claims abstract description 96
- 239000011248 coating agent Substances 0.000 claims description 121
- 229920001296 polysiloxane Polymers 0.000 claims description 96
- 239000003921 oil Substances 0.000 claims description 67
- 239000011347 resin Substances 0.000 claims description 44
- 229920005989 resin Polymers 0.000 claims description 44
- 239000002318 adhesion promoter Substances 0.000 claims description 42
- 239000008199 coating composition Substances 0.000 claims description 42
- 239000003054 catalyst Substances 0.000 claims description 34
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 30
- 150000001875 compounds Chemical class 0.000 claims description 29
- 239000002759 woven fabric Substances 0.000 claims description 28
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 24
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 21
- 125000002769 thiazolinyl group Chemical group 0.000 claims description 21
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 21
- 125000000217 alkyl group Chemical group 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 18
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 17
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 16
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims description 16
- 239000003112 inhibitor Substances 0.000 claims description 15
- 229910052697 platinum Inorganic materials 0.000 claims description 14
- 238000007711 solidification Methods 0.000 claims description 14
- 230000008023 solidification Effects 0.000 claims description 14
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 12
- 239000004593 Epoxy Substances 0.000 claims description 12
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 12
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 11
- 229910000077 silane Inorganic materials 0.000 claims description 11
- 229920002554 vinyl polymer Polymers 0.000 claims description 11
- DNXHEGUUPJUMQT-CBZIJGRNSA-N Estrone Chemical compound OC1=CC=C2[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 DNXHEGUUPJUMQT-CBZIJGRNSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 10
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 9
- 230000001627 detrimental effect Effects 0.000 claims description 9
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical group [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 150000004703 alkoxides Chemical class 0.000 claims description 6
- 239000013522 chelant Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- 150000008301 phosphite esters Chemical class 0.000 claims description 2
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 14
- 239000000758 substrate Substances 0.000 abstract description 5
- 238000004900 laundering Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 51
- 238000005406 washing Methods 0.000 description 29
- 229920000728 polyester Polymers 0.000 description 28
- 229920000642 polymer Polymers 0.000 description 26
- 238000005516 engineering process Methods 0.000 description 25
- 238000012545 processing Methods 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 238000007731 hot pressing Methods 0.000 description 20
- 239000000835 fiber Substances 0.000 description 15
- 239000010408 film Substances 0.000 description 15
- 239000004753 textile Substances 0.000 description 15
- 239000002131 composite material Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 13
- 238000001723 curing Methods 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000945 filler Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000012530 fluid Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 150000003254 radicals Chemical class 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 5
- 241000700605 Viruses Species 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 238000005202 decontamination Methods 0.000 description 4
- 230000003588 decontaminative effect Effects 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 230000002458 infectious effect Effects 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000032798 delamination Effects 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 125000005843 halogen group Chemical group 0.000 description 3
- 239000011256 inorganic filler Substances 0.000 description 3
- 229910003475 inorganic filler Inorganic materials 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 125000003944 tolyl group Chemical group 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 125000005023 xylyl group Chemical group 0.000 description 3
- WGLLSSPDPJPLOR-UHFFFAOYSA-N 2,3-dimethylbut-2-ene Chemical group CC(C)=C(C)C WGLLSSPDPJPLOR-UHFFFAOYSA-N 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000208202 Linaceae Species 0.000 description 2
- 235000004431 Linum usitatissimum Nutrition 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920006282 Phenolic fiber Polymers 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 238000012644 addition polymerization Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
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- 239000007844 bleaching agent Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 2
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- 239000012528 membrane Substances 0.000 description 2
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- 238000004064 recycling Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000008279 sol Substances 0.000 description 2
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- MVEOHWRUBFWKJY-UHFFFAOYSA-N 7-hydroxynaphthalene-2-sulfonic acid Chemical compound C1=CC(S(O)(=O)=O)=CC2=CC(O)=CC=C21 MVEOHWRUBFWKJY-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000793 Azlon Polymers 0.000 description 1
- HOPKHJSQWOIIQO-UHFFFAOYSA-N C[SiH2]C.[O] Chemical compound C[SiH2]C.[O] HOPKHJSQWOIIQO-UHFFFAOYSA-N 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920013685 Estron Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 206010046996 Varicose vein Diseases 0.000 description 1
- 229920001617 Vinyon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000002155 anti-virotic effect Effects 0.000 description 1
- 229940045985 antineoplastic platinum compound Drugs 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229960003399 estrone Drugs 0.000 description 1
- ARLJCLKHRZGWGL-UHFFFAOYSA-N ethenylsilicon Chemical group [Si]C=C ARLJCLKHRZGWGL-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
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- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003863 metallic catalyst Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 239000005416 organic matter Chemical group 0.000 description 1
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- 125000002524 organometallic group Chemical group 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003058 platinum compounds Chemical class 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
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- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
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- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 150000003284 rhodium compounds Chemical class 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
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- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- RSNQKPMXXVDJFG-UHFFFAOYSA-N tetrasiloxane Chemical compound [SiH3]O[SiH2]O[SiH2]O[SiH3] RSNQKPMXXVDJFG-UHFFFAOYSA-N 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Coated barrier fabrics are prepared with a two part, cold cure polyoxysiloxane composition and a unique two pass, two cure rate, coating process. Preferably, the coated fabrics have overlayed a second uncoated fabric on the inner surface of the coated substrate. This preferred process realizes a reusable medical barrier fabric with exceptional durability even after undergoing many laundering / autoclaving / drying cycles.
Description
The cross reference of related application
The application requires the U.S. Provisional Application No.60/580 of submission on June 16th, 2004,149 priority.
Technical field
The present invention relates to improvement that barrier fabric is done.More particularly, the present invention relates to the improvement done to barrier fabric, especially for the barrier fabric in the curable product that can re-use or non-once and the manufacture method of this barrier fabric.These products not only demonstrate the anti-virus and the liquid barrier property of remarkable enhancing, and have washing fastness and heat-resisting pressure processing (autoclave) property that is greatly improved.
Background technology
The general features of barrier fabric is an impenetrable liquid.The more strict barrier fabric of specification requirement also especially is suitable in the medical domain, to prevent or to control: the propagation of infectious microorganism (as virus and bacterium), the transfer of blood and other fluid relevant with (for example) operation.
The performance of barrier fabric is very crucial for being used for keeping aseptic curable product (as operation towel) of surgery and/or operative site and protective garment (as operation dress).These barrier fabrics are widely used in the places such as hospital, Doctor's office, clinic by medical personnel (as doctor, feldsher, nurse and candy striper).Particularly when contacting with contaminated body fluid possibly, should protect medical personnel and patient as possible.Medical personnel conventionally use medical barrier fabric in surgery, blood draw or process that the sample that contains contaminated-fluid is handled; thereby both protected they self, and avoided accidental transmission owing to infectious material to make subsequently patient be subjected to cross pollution again or pollute once again.
Two types medical barrier fabric is arranged at present: only expendable material (that is disposable material) and the material that can re-use.Disposable fabric normally is made of nonwoven, and wherein this nonwoven makes by the synthetic fibers of lightweight or with natural fibre blended synthetic fibers.The liquid-repellant of disposable non-woven cloth generally is acceptable; Yet these fabrics do not have usually be considered to realize ideal protection effect necessary multiple performance in many medical applications.
On the other hand, the medical barrier fabric that can use once again normally is woven into by cotton, cotton/polyester blended thing or polyester, and have high pck count so that the physical barrier effect is provided, thereby prevent or reduce infectious material or the propagation of the thing that carries disease germs.Although the woven fabric that can use once again itself provides more comfortable drapability and feel; and can reduce the cost of each use; but their lack liquid-repellant (this is that the performance that it has is expected in market on to the experiential basis of disposable barrier fabric); and their some protective values can be lost usually as time passes, and are especially all the more so in repeatedly washing and steam (hot-pressing processing) sterilization back.
Its acquisition cost of product (as operation dress) made with protective barrier fabric and the number of times that can utilize again thereof directly influence the each cost that uses of this product.For example for the disposable surgical clothes, expendable cost is exactly in fact their acquisition cost and waste disposal expense.The disposable surgical clothes have the advantage of convenience certainly.Yet the operation dress that can use once again has advantage on sense of touch, and this is because they have good drapability and feel, and this compares with the disposable surgical clothes of being made by nonwoven is preferable.Drapability and feel are the key factors that is used to prepare " feel " that textile had of the operation dress that can use once again.
All these are in order to emphasize, to exist a kind of power of competing to drop to minimum with intercepting the each cost that uses of protective garment and product the medical/surgery that can use once again.
Yet, importantly, the medical/surgery of operation dress, operation towel and other non-once that can use once again being also had further requirement with the barrier fabric product, this makes they and the other products or the clothes that contain barrier fabric make a distinction.That is to say that the operation dress that can use once again must carry out (for example) washing, dry and sterilization, so that utilize subsequently again after each the use.These operations relate to harsh washing agent and high temperature, make the barrier property of operation dress reduce rapidly, therefore the recycling number of times of operation dress are restricted.
Medical/surgery that this class can be used once again generally comprises initial flush with the washing/hot-pressing processing circulation typical, regulation of product, and wherein this product soaked 2-5 minute in 90-100 water.Then this product was soaked 3-10 minute in 120-150 alkaline bath (pH surpasses 10), make spot dissociate out.Then, this product in bathing, was placed about 6-10 minute by about 160 washing agent.Then this product in bathing, was placed about 6 minutes by about 150 bleaching agent.Subsequently can be to this product is carried out the one or many rinsing under the temperature that is reduced to environment temperature gradually from 160.Adopt acid acid bath at last, wherein pH is adjusted to 4-7, wherein can also use softening agent.Adopt the one or many rinsing to bathe then.
Be subjected to mechanical agitation among this product some (not necessarily whole) in the middle of these body lotions.In addition, after each body lotion soaks, there is one period that is used for separating (rotation), so that farthest reduce the amount that is carried to the liquid in the subsequent process.
Then this product is placed drumdrier and under 160 mean temperature, carry out drying.Be about 20-40 minute degree the typical drying time of product.It is pointed out that in this drier to have hot spot, this can make product touch to surpass 400 temperature conditions.
After drying, this product is positioned in the autoclave, then under about 260 temperature by the steam under pressure disinfection, the processing time is at least 4 minutes, preferably approximately 15 minutes.
These exacting terms are considerably beyond working as precondition to what the barrier fabric of combination in common clothes washed or dry-cleaned.In fact, many barrier fabrics that are intended for use business suit (as the following clothes of dress of severe weather conditions) are through once or after the washing of less time regulation/hot-pressing processing circulation just becoming and can't use.
Traditionally, polymer film is used as the lamination with textile formation, so that for the curable product (as operation towel and operation dress) of those limited uses that are made of disposable fabric provides barrier property, and list of references about these laminations and medical usage thereof is arranged in this technical field much, and (for example U.S. Patent No. 4,379,192 and U.S. Patent No. 6,238,767).Microporous barrier and preparation method thereof is by 3,844,865 instructions of (for example) U.S. Patent No., and adopt that this type of perforated membrane and non-woven material obtain be stacked in (for example) U.S. Patent No. 5,560,974,5,169,712,6, instruct in 610,163 and 5,695,868.
Usually, the fabric that utilizes in disposable composite is a non-woven material, and this class film comprises the lower polyethylene of basis weight, polypropylene and comprises polyolefin and the blend of copolymer (as ethylene-propylene copolymer).When the operation of washing of attempting these composites are stipulated repeatedly and decontamination cycle, these stacked film products are very fast delamination occurs and can not keep again they the major part in the protective barrier performance that must have.Taked the method for various ways to prevent that the barrier armored fabric is among washing/sterilization cycles repeatedly and/or occur undesirable leafing phenomenon afterwards, described method is mainly: use polymer-coated, dipping or saturated dipping technique, and/or be used in combination with these technology and multilayer woven fabric, polymer and/or through the woven fabric of polymer treatment.By using fluorochemical and polysiloxanes base polymer, made these technology play maximum effect in the prior art.
The early stage polysiloxane coating that is used for woven fabric tends to the level and smooth sense or the feel of this fabric of deterioration, and makes the fabric side of band coating have elastomeric surface, and this is that many fabric applications (particularly clothes) are unacceptable.This technology is also used the coating of polysiloxane and is attempted, and attempts to reach high-caliber liquid-repellant.Though this technology applies the porous fabric tablet with polysiloxanes, these early stage polysiloxane polymers tend to be retained on the fabric face, and promptly polymer can't be restrainted film forming on the inner yarn bundle at each root internal fiber and/or each.As a result, coating often is worn soon and/or washes off.
In order to allow polymer more in depth be penetrated in the space of fabric, available technology adopting saturated dipping or dipping technique.These technology are usually by realizing with low viscous liquid silicone impregnate fabric.By this way, low viscous polymer fluid can easily flow in the space of this tablet and be adsorbed or be absorbed within the space.Can realize this application by (for example) the so-called technology of padding with fluid composition or paste compound impregnate fabric, wherein, soak one and roll in the technology of method being called one infusion process or sometimes, make textile material, pass through compression roller subsequently at first by dipping bath.Can be for the another kind of mode selected for use, soak in two technologies of rolling being called twice dipping or two sometimes, fabric is passed through between the compression roller, be positioned at the roller portability fluid composition or the paste compound of bottom.Yet as U.S. Patent No. 2,673, the 823 this technologies of being instructed have tended to make oversteeping the elastomeric material of polysiloxanes, that is, the space of fabric is filled fully usually or fills up.This treated tablet no longer has its initial sense of touch and visual signature basically, has the elastic characteristic of the polysiloxane polymer of curing on the contrary.
The tablet preprocess method that impels composition to enter into the tablet gap depends on and uses the low viscous composition that contains solvent (as water or the organic kind solvent of volatility), to help the flowing of composition (as in U.S. Patent No. 3, instruction is such in 594,213).Yet, this type of system based on solvent tend to at random and inconsistent mode with polymer deposition on fabric, thereby form discrete polymer site, therefore the integrated bond intensity of final products is restricted.Certainly, utilize the technology of solvent usually can bring and handle the negative consequences of relevant environment and economic aspect with the removal of solvent.According to U.S. Patent No. 4,588,614 is open, adopts not curable solvent and heating to reduce and be used for porous fabric is carried out the viscosity that saturated polymers impregnated composition is had.
U.S. Patent No. 5,236,532 and 5,183, another kind of method has been described in 702, this method quite successfully makes fabric still have the excellent liquid impermeability after the washing/hot-pressing processing of carrying out repeatedly defined, this method is present a kind of in the middle of commercial acceptable selecting technique, wherein be pressed onto on the fine and close woven fabric at the film that between a pair of roller the uncured polysiloxanes by highly viscous state is formed, this woven fabric has formed " tubercle " and has handled with the hydrophilic finish agent in advance on contact-making surface.Subsequently with this composite material solidification.
Many lists of references disclose and have used lamination techniques to attempt farthest to improve the desired properties of barrier fabric.This type of technology comprises that the fabric that will handle, untreated fabric and/or perforated membrane and adhesive tie layer carry out stacked; Yet these technology have demonstrated and the identical limitation of solid film laminated fabric product mentioned above, and for example delamination occurs in wearing and tearing or washing/decontamination cycle, in addition, also run into owing to use the environmental problem that adhesive brought.In addition, when guaranteeing that mechanical performance difference between the various layer (as treated base material, adhesive, film etc.) reaches balance, also can run into other difficulty.For example, if any contraction in above-mentioned three kinds of materials has surpassed any initial yield stress in all the other two kinds of materials, then will deform; And if this contraction has surpassed ultimate tensile strength, the leafing of multilayer materials then will appear.
U.S. Patent No. 4,872,220,5,024,594,5,180,585,5,335,372,5,391,423,5,532,053 and 6,238,767 have described and adopt tissue layer and/or polymeric layer to prevent that blood, bacterium and virus from penetrating the product of this Fabric composites.In addition, U.S. Patent No. 4,991,232 have described and have comprised a plurality of layer in case hemostasis liquid penetrates the medical clothes of clothes.Similarly be, U.S. Patent No. 5,027,438 by the impregnate fabric that will have biocidal property be clipped in two have micropore between the fabric of polyurethane coating, and make barrier composite.Disadvantageously, thisly can cause clothes heavier and will use more raw materials usually fabric and/or the stacked method of polymer.
In the prior art in order to obtain low viscous liquid polymer and with the another kind of technology that adopts in its infiltration fabric void to be: use thixotropy or pseudoplastic behavior polymer, this polymer is applied on the fabric substrate under high shear forces.This method and be present a kind of in the selecting technique business-like medical barrier fabric field from the product that this method makes.U.S. Patent No. 6,071,602 disclose a kind of like this technology, and it is used to control the caking property and the effective drainage porosity of tablet, thereby obtains to claim the tablet that can prevent the pathogenic microorganisms infiltration.U.S. Patent No. 6,342,280 and 6,416,613 also use the thixotroping method to prepare multilayer materials, and this method comprises uncured and solvent-free basically pseudoplastic behavior polymer shear shinning; This fluid is applied on the porous substrate, makes most of fiber be wrapped, make some interstitial spaces keep unimpeded simultaneously; On the surface of the uncured base material that is wrapped, apply one layer of polymeric; This is laminated on the uncured base material that is wrapped; With the composite integrally curing.The polymer that can be successfully used in this method allegedly comprises polysiloxanes, polyurethane, fluorosilicone, acrylic resin, polytetrafluoroethylene (PTFE), neoprene and their mixture.
Important technology in the protective barrier fabric field is expanded PTFE (ePTFE) film that adopts the band micropore.The publication relevant with these ePTFE films is described as them the part of 3 layers of composite usually.For example, U.S. Patent No. 4,433,026 has instructed a kind of barrier fabric, and wherein the ePTFE film is sandwiched between polyester woven fabric and the polyester knitted; U.S. Patent No. 5,155,867 disclose a kind of barrier fabric underwear, and wherein the ePTFE film is laminated in by on hydrophilic polyurethane film-formed composite of stretchable knitted fabric; U.S. Patent No. 5,948,707 disclose a kind of skid resistance casting liner, wherein have the discontinuous coating of elastomer (as polysiloxanes, polyurethane etc.) on the side of ePTFE film, and adhered to soft fabric on the opposite side of this film.
Although it is reported, even the varicosity PTFE textile protection composite of band micropore is still keeping good water repellency and other barrier property through after repeatedly washing/hot-pressing processing circulates, they are the very high product of production cost often.
Seek can not use solvent or price apparatus (as high shear generation device or high pressure roller) just can on fabric substrate, be coated in film at an easy rate and process lower-cost material in, this technical field (especially making relevant technical field with air bag) is recognized the necessity that the so-called cold curing polysiloxane composition of use (especially utilizing hydrosilation or addition polymerization to carry out those compositions of crosslinked two parts type) is produced the thin flexible film body recently.Generally, two parts are mixed together and form low viscous composition; Use any conventional method (as scraper or roller scraper (knife over roll), air doctor blade (knife over air), transfer printing or kiss is coated with or silk-screen printing technique) that it is coated on the fabric; Then by with a kind of unsaturated group (thiazolinyl, for example vinyl-silicon group) addition polymerization of polysiloxane to hydrogen atom with one or another kind of polysiloxane, and carry out heat cure.This is highly desirable technology because the polysiloxane coating of these film shapes can be applied in and be solidified to form rapidly coating apace under lower heating-up temperature, this coating have these polysiloxanes intrinsic water repellency feature.In addition, these coatings have excellent resistance to ag(e)ing, that is to say that they have still kept the performance such as its hot property and mechanical performance well as time passes.
The typical example of polysiloxanes system these cold curings, that comprise two parts is patent documentation EP-A-0, disclosed composition in 553,840, and it contains:
(A) per molecule has the polydiorganosiloxanepolyurea of at least two thiazolinyls,
(B) per molecule has the poly-organohydrogensiloxanes (polyhydrogenoorganosiloxane) of at least two hydrogen atoms that are connected with silicon,
(C) metallic catalyst, this metal belongs to platinum family,
(D) by having the adhesion promoter that epoxy functionalized organo-silicon compound are formed,
(E) inorganic filler, for example, reinforcer is as vapor deposition titanium dioxide, microparticulate silica (for example vapor deposition silica, precipitated silica and fumed silica); And main non-reinforcer, as oxide, aluminium oxide, calcium carbonate or the magnesium carbonate of silica flour, diatomite, iron; For example, add the silica of handling through organosilan, organosilazanes or two organic cyclopolysiloxanes (diorganocyclopolysiloxane),
(F) the polysiloxane resin and
(G) optional compound as cross-linked inhibitor.
In U.S. Patent No. 5,296, can find said components (A) to (E) in 298 once more, different is that adhesion promoter (D) is made of composition with epoxy functionalized organo-silicon compound and alkoxylate silane (per molecule contains (methyl) acryloyl group or (methyl) acryloxy group) and optional aluminium chelate; And inorganic filler (E) is optional, but has all used inorganic filler (E) in this inventive embodiment of be useful on explanation.As the example of filler, these documents are mentioned vapor deposition silica, precipitated silica, Powdered quartz, diatomite and glass bead.
It is reported that the coating of being made by above-mentioned composition can not adhere on the synthetic nylon fabric securely, thereby can't be applied to the such final use of air bag satisfactorily.
EP-A-0,681,014 disclose similar with above composition, as to comprise two parts cold curing polysiloxane composition, and it can form the coating with significantly improved fabric adhesion energy.Described polysiloxane coating composition is made of mixture, and wherein this mixture is formed by following component:
(I) per molecule has at least two C that are connected with silicon
2-C
6At least a polysiloxane of thiazolinyl,
(II) per molecule has at least a polysiloxane of at least two hydrogen atoms that are connected with silicon,
(III) at least a catalyst of effective catalytic amount, this catalyst contains at least a metal that belongs to platinum family,
(IV) adhesion promoter,
(V) optional mineral filler,
(VI) optional at least a cross-linked inhibitor and
(VII) optional at least a polysiloxane resin,
Wherein this adhesion promoter only is made up of the ternary composition at least of following component:
(IV.1) per molecule contains at least one C
2-C
6At least a alkoxylate organosilan of thiazolinyl,
(IV.2) contain at least one epoxy radicals at least a organo-silicon compound and
(IV.3) at least a metal M chelate and/or at least a by formula M (OJ)
nThe metal alkoxides of expression, the chemical valence of n=M wherein, the C of J=straight or branched
1-C
8Alkyl, M are selected from Ti, Zr, Ge, Li, Mn, Fe, Al and Mg.
Reinforcer (as pyrolytic silicon dioxide) has all appearred among all embodiment of this patent documentation.
In order to have the advantage of economic competition in gas cell fabric industry, people wish to apply silicone layer as thin as a wafer very much, that is, this coating additional weight on fabric should be lower than 30g/m
2
For this reason, U.S. Patent No. 6,586,551 change said composition by the mode of saving whole reinforcers from the composition of patent documentation ' 014.According to reports, can easily obtain the low coated fabric of impost (in particular for the polyamide fabric in the air bag industry) by this way, all not have negative effect and contain the performance (as anti-flammability and hear resistance, wrinkle resistance and wearability and thermal insulation properties) that the composition of filler realizes for employing; In fact, by saving filler, above-mentioned all character all improve.
In order to increase the coating layer thickness on the base material but do not increase the weight of coated base material, simultaneously still keep acceptable (air bag) final serviceability (as hear resistance), U.S. Patent No. 6,562,737 have adopted and the antipodal measure of said method: the expandable organic framboid with polymer wall is added in the coating composition; This spherolite contains liquid or gas.This spherolite preferably was introduced in the coating composition before they expand, and can impel its expansion by suitable heating in the cross-linking process of elastomer coating then.
Although have required rejection to liquid and microorganism in order to prepare, the outcomes of making through the barrier fabric of shallow layer coating generally all are acceptable, but the financial cost benefit remains the target of being escaped, this is because of service condition (for example heavy wear in harshness, repeatedly folding and/or through the condition of the washing/decontamination cycle of strict regulations repeatedly) under, the adhesive effect of adhesive and/or polymer is destroyed, thereby can cause appearance leafing at random in the barrier fabric, pin hole and and its barrier propterty be damaged, these all can shorten the potential service life of barrier fabric significantly.
Therefore; the objective of the invention is to obtain a kind of protective barrier fabric composite; especially a kind of protective barrier fabric composite that contains polyester that is suitable for medical barrier fabric market; this composite has the excellent rejection to virus and liquid in the starting stage; and can after the washing/hot-pressing processing circulation of at least 75 regulations, also keep these performances, the present invention also aims to provide the manufacture method of this protective barrier fabric composite.
Summary of the invention
The invention provides a kind of preparation method of barrier fabric, especially be suitable for the preparation method of the barrier fabric of the medical barrier fabric final use (as surgery apparel and operation towel) that can utilize again.This method comprises two coatings that are made of not only solvent-free but also packless cold curing low viscosity polysiloxane composition is applied on the woven fabric (fabric that preferably contains polyester), second coating that wherein is positioned on the inboard can randomly be covered by fabric, is preferably covered by the natural fabric of softness.
Even the fabric of being made by this method is through repeatedly still showing outstanding long-term impermeability (particularly being the excellent rejection to virus and liquid) after the washing/hot-pressing processing decontamination cycle.
Detailed Description Of The Invention
The present invention relates to cold curing composition and be used for two procedures method technology on the side that coating with said composition puts on woven fabric (fabric that preferably contains polyester) through selecting.In this way, can make excellent recycling barrier fabric or barrier fabric goods; Specifically, can make and to satisfy barrier fabric or the barrier fabric goods that medical virus/liquid barrier is used the technical standard of desired strictness.
Preferably, the mode that the fabric of softness is stacked on " interior " side of band coating of woven fabric is generally: i) coated barrier fabric is sewn on the previously prepared weaving fabricated product (as operation dress or operation towel); Or (ii) be made into fabricated product (as above-mentioned operation dress or operation towel) before at textile material and coated barrier fabric, coated barrier fabric is sewn on this textile material.
Not only solvent-free but also packless cold curing polysiloxane composition of the present invention is composed of the following components basically:
(1) per molecule has at least two C that are connected with silicon
2-C
6At least a polysiloxane of thiazolinyl,
(2) per molecule has at least a polysiloxane of at least two hydrogen atoms that are connected with silicon,
(3) at least a catalyst of effective catalytic amount, this catalyst contains at least a metal that belongs to platinum family,
(4) adhesion promoter, it is grouped into by following one-tenth basically:
(4.1) methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
(4.2) at least a organo-silicon compound with at least one epoxy radicals and
(4.3) at least a metal M chelate and/or at least a by formula M (OJ)
nThe metal alkoxides of expression, the chemical valence of n=M wherein, the C of J=straight or branched
1-C
8Alkyl, M is selected from: Ti, Zr, Ge, Li, Mn, Fe, Al and Mg,
(5) at least a polysiloxane resin and
(6) at least a cross-linked inhibitor.
About this adhesion promoter (4), the amount of methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO) (4.1) accounts for 0.5 weight %-5 weight % of said composition gross weight.
About the organo-silicon compound (4.2) in the adhesion promoter (4), the regulation of being done according to the present invention, it is selected from material (4.2a) or material (4.2b), wherein:
-material (4.2a) satisfies following general formula:
Wherein:
R
6Be the C of straight or branched
1-C
4Alkyl,
R
7Be the alkyl of straight or branched,
Y equals 0,1,2 or 3, preferably equals 0 or 1, even more preferably equals 0, and
Wherein
-E is identical or different groups with D, and is selected from the C of straight or branched
1-C
4Alkyl,
-z equals 0 or 1,
-R
8, R
9And R
10Be identical or different groups, and the C of expression hydrogen or straight or branched
1-C
4Alkyl; Hydrogen is more particularly preferred,
-R
8With R
9Or R
8With R
10Can also with shown in two contained carbon of epoxy radicals constitute 5-7 unit alkyl ring,
-material (4.2b) constitutes by having epoxy functionalized polydiorganosiloxanepolyurea, and it comprises:
-by the represented at least a siloxy functional unit of following formula:
X
p G
q SiO
[4-(p+q)]/2 (4.2b1)
Wherein
-X is the group that as above defines in general formula (4.2a),
-G is to the monovalence alkyl of catalyst activity without any detrimental effect, and preferably be selected from: have 1-8 (comprising scope end value number) alkyl carbon atom, that can randomly be replaced by at least one halogen atom, this alkyl advantageously is selected from methyl, ethyl, propyl group and 3,3, the 3-trifluoro propyl; Or aryl, this aryl advantageously is selected from xylyl, tolyl and phenyl,
-p=1 or 2, and
-q=0,1 or 2,
P+q=1,2 or 3 wherein,
-and optional, by the represented at least a siloxy functional unit of following formula:
G
r Si O
[4-r]/2 (4.2b2)
Wherein the implication of G is with above-described identical, and the r value is preferably between the 1-3 between 0-3.
Compound (4.2) is preferably epoxy radicals alkoxyl list silane (4.2a).
The amount of compound (4.2) accounts for 0.5 weight %-5.0 weight % of composition total weight.
As the example of this compounds (4.2a), can mention:
-3-glycidoxypropyltrimewasxysilane (GLYMO) and
-3,4-epoxycyclohexyl ethyl trimethoxy silane.
About last a kind of compound (4.3) of the contained necessity of the adhesion promoter in the polysiloxane composition of the present invention (4), preferred material is that wherein metal M is selected from those materials among Ti, Zr, Ge, Li and the Mn.Should be emphasized that titanium is particularly preferred.Metal M can combine with the alkoxyl of (for example) butoxy type.
In adhesion promoter (4), the amount of compound (4.3) accounts for 0.38 weight %-2.0 weight % of composition total weight, is preferably 0.40%-1.0%, most preferably is 0.45 weight %-0.60 weight %.
According to the present invention, be used to form a kind of preferably being combined as of adhesion promoter (4):
Methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
3-glycidoxypropyltrimewasxysilane (GLYMO) and
Butyl titanate.
The weight rate of compound (4.1), (4.2) and (4.3) (expressing with shared parts by weight in the summation of each these three kinds of compound of comfortable 100 parts) can be defined as quantitatively:
(4.1) be equal to or greater than 10, be preferably 15-70,25-65 more preferably,
(4.2) be equal to or less than 90, be preferably 70-15, in addition more preferably 65-25 and
(4.3) be equal to or greater than 1, be preferably 5-30, even 8-25 more preferably;
It will be appreciated that the summation of these ratios of (4.1), (4.2) and (4.3) equals 100%.
Can show that the adhesion characteristic of polysiloxane coating is relevant with the architectural characteristic of polysiloxane coating on the one hand, on the other hand with (4.2): the weight ratio of (4.1) is relevant.Therefore, this ratio is preferably between 2: 1 and 0.5: 1; Ratio 1: 1st, more particularly preferred.
Preferably, the amount of this adhesion promoter accounts for 1.1 weight %-12 weight % of the total component of composition, is preferably 1.5 weight %-5 weight %, in addition more preferably 2 weight % to 3 weight %.
Composition of the present invention must contain at least a polysiloxane resin (5), wherein has at least one thiazolinyl residue in the structure of this resin, and the thiazolinyl weight content in this resin is 0.1 weight %-20 weight %, is preferably 0.2 weight %-10 weight %.
These resins are organopolysiloxane polymer or oligomer and commercially available getting of well-known side chain.They are forms of solution, and are preferably polysiloxane solution.Has the formula of being selected from R in they self the structure
3SiO
0.5(M functional unit), R
2SiO (D functional unit), RSiO
1.5(T functional unit) and SiO
2At least two kinds of different functional units in (Q functional unit); At least a among described at least two kinds of different functional units is T or Q functional unit.
Wherein, radicals R is identical or different, and is selected from the C of straight or branched
1-C
6Alkyl and C
2-C
4Thiazolinyl, phenyl and 3,3, the 3-trifluoro propyl.For example, as alkyl, R can be methyl, ethyl, isopropyl, the tert-butyl group and n-hexyl; As thiazolinyl, R can be a vinyl.
It should be understood that some in the radicals R are thiazolinyls in the resin (5) at the above-mentioned type.
The organopolysiloxane polymer of side chain or the example of oligomer are MQ resin, MDQ resin, TD resin and MDT resin, and wherein alkenyl-functional groups may be positioned on M, D and/or the T functional unit.As the example of specially suitable resin, can mention the vinyl weight content is the vinyl MDQ resin of 0.2 weight %-10 weight %.
Compound (5) has the mechanical strength of raising silicone elastomer coating and its fusible function.The content of this structural resin accounts for 10 weight %-70 weight % of the whole components of composition, is preferably 30 weight %-60 weight %, even 40 weight %-50 weight % more preferably.
Polysiloxane resin (5) preferably contains at least 2 weight %, is preferably 4%-14%, most preferably is the SiO of 5%-12%
2Functional unit (Q functional unit).
The viscosity of described polydiorganosiloxanepolyurea resin (5) should equal 1000mPas at least, is preferably 5000-200,000mPas.
As required, this viscosity should be 10,000-200, and 000mPas, especially 30,000-170,000mPas most preferably is 50,000-140,000mPas.In the situation of the mixture of the different several oil (1) of viscosity, need to consider the viscosity of whole mixt.
By weight, polysiloxane oil (polyorganosiloxane oil) (1) is a kind of in the contained key component of the present composition.Advantageously, polysiloxane oil (1) is the material that contains following functional unit:
(i) by the represented siloxy functional unit of following formula:
T
a Z
b Si O
[4-(a+b)]/2 (1.1)
Wherein:
-T is a thiazolinyl, is preferably vinyl or pi-allyl,
-Z is to the monovalence alkyl of catalyst activity without any detrimental effect, and preferably
The alkyl that at least one halogen atom replaces, more preferably methyl, ethyl, propyl group and 3,3,3-trifluoro propyl; And aryl, more preferably xylyl, tolyl and phenyl,
-a is 1 or 2,
-b is 0,1 or 2, and
-a+b is 1-3, is preferably 2-3,
With
(ii) optional, as to be expressed from the next other siloxy functional unit:
Z
c Si O
[4-c]/2 (1.2)
Wherein
The implication of Z is with above-described identical,
The c value is preferably between the 2-3 between 0-3.
The content of this oil (1) accounts for 10 weight %-70 weight % of the whole components of composition, is preferably 30 weight %-60 weight %, even 40 weight %-60 weight % more preferably.
Described polydiorganosiloxanepolyurea oil viscosity should be preferably 5000-200,000mPas for equaling 1000mPas at least.
As required, this viscosity should be 10,000-200, and 000mPas especially is 30,000-150,000mPas most preferably is 40,000-110,000mPas.In the situation of the mixture of the different several oil (1) of viscosity, need to consider the viscosity of whole mixt.
The all viscosity that relates in present specification all is 25 ℃ of dynamic viscosity values of measuring down by known method own.
Polysiloxane oil (1) can only be formed by the represented functional unit of formula (1.1) or can contain the represented functional unit of formula (1.2) in addition.Equally, it can be straight chain, side chain, ring-type or network structure.
Z generally is selected from methyl, ethyl and phenyl, and the group Z of at least 60 moles of % (or 60% (calculating by quantity)) is a methyl.
The siloxy functional unit's that formula (1.1) is represented example is vinyl-dimethyl base siloxy functional unit, ethenylphenyl methyl silicane oxygen base functional unit, vinyl methyl silicane oxygen base functional unit and vinyl siloxy functional unit.
The siloxy functional unit's that formula (1.2) is represented example is SiO
4/2, dimethyl silane oxygen base, aminomethyl phenyl siloxy, diphenyl siloxy, methyl silicane oxygen base and phenyl siloxy functional unit.
The example of polysiloxane oil (1) is straight chain compound and cyclic compound, as the dimethyl polysiloxane of dimethyl vinyl silicyl end-blocking, (methyl ethylene) (dimethyl)-polysiloxane copolymer of trimethyl silyl end-blocking, (methyl ethylene) (dimethyl) polysiloxane copolymer and the ring-type methylvinyl-polysiloxane of dimethyl vinyl silicyl end-blocking.
Poly-organohydrogensiloxanes oil (2) has at least two hydrogen atoms that are connected with siloxanes, and preferably contains following functional unit:
(i) by the represented siloxy functional unit of following formula:
H
d L
e Si O
[4-(d+e)]/2 (2.1)
Wherein:
-L is to the monovalence alkyl of catalyst activity without any detrimental effect, and preferably be selected from: (a) have 1-8 (comprising scope end value number) alkyl carbon atom, that can randomly be replaced by at least one halogen atom, more preferably methyl, ethyl, propyl group and 3,3, the 3-trifluoro propyl; (b) aryl, more preferably xylyl, tolyl and phenyl,
-d is 1 or 2,
-e is 0,1 or 2, and
The value of d+e is preferably between the 2-3 between 1-3;
With
(ii) optional, by other siloxy functional unit who represents with following formula:
L
g Si O
[4-g]/2 (2.2)
Wherein:
The implication of L is with above-described identical, and
The g value is preferably between the 2-3 between 0-3.
The dynamic viscosity of described polysiloxane (2) equals 5mPas at least, is preferably 10-100mPas.
The content of described poly-organohydrogensiloxanes oil (2) accounts for 2 weight %-10 weight % of the whole components of composition, is preferably 3 weight %-8 weight %, even 4 weight %-6 weight % more preferably.
Poly-organohydrogensiloxanes oil (2) can only be formed by the represented functional unit of formula (2.1) or can contain the represented functional unit of formula (2.2) in addition.
Poly-organohydrogensiloxanes oil (2) can be straight chain, side chain, ring-type or network structure.
The functional unit's that formula (2.1) is represented example is:
H(CH
3)
2SiO
1/2、HCH
3SiO
2/2、H(C
6H
5)SiO
2/2。
The functional unit's that formula (2.2) is represented example is with above identical for those given examples of the represented functional unit of formula (1.2).
The example of poly-organohydrogensiloxanes oil (2) is straight chain compound and cyclic compound, as:
The dimethyl polysiloxane of-hydrogen base dimetylsilyl end-blocking,
-contain (dimethyl) (hydrogen ylmethyl) polysiloxanes functional unit's of trimethyl silyl end-blocking copolymer,
-contain (dimethyl) (hydrogen ylmethyl) polysiloxanes functional unit's of hydrogen base dimetylsilyl end-blocking copolymer,
Hydrogen ylmethyl-the polysiloxanes of-trimethyl silyl end-blocking and
-cycloalkyl hydroperoxide ylmethyl polysiloxanes.
Be connected in the hydrogen atom on the silicon in the poly-organohydrogensiloxanes oil (2) quantity, with the ratio of the sum of polysiloxane oil (1) and polysiloxane resin (5) the group in the two with thiazolinyl unsaturated bond be 0.4-10, be preferably 0.6-5.
Polyaddition type polysiloxane composition matrix of the present invention can only contain the polysiloxane (1) of straight chain and (2) (for example at patent documentation US-A-3,220,972, US-A-3,697,473 and US-A-4, those that describe in 340,709), perhaps can contain side chain or netted polysiloxane (1) and (2) simultaneously (for example at patent documentation US-A-3,284, those that describe in 406 and US-A-3,434,366).
The following material of preferred use:
The polysiloxane oil (1) of-at least a straight chain, its contained strand is to be formed by the represented functional unit of the formula of c=2 (1.2) wherein, and each end of these strands all by the represented functional unit's institute's end-blocking of the formula of a=1 and b=2 (1.1) wherein and
The poly-organohydrogensiloxanes oil (2) of-at least a straight chain contains at least three hydrogen atoms that are connected with silicon in its structure, these hydrogen are arranged in strand and/or molecule chain end.
Most preferably use following material:
The polysiloxane oil (1) of-at least a straight chain, its contained strand is to be formed by the represented functional unit of the formula of c=2 (1.2) wherein, and each end of these strands all by the represented functional unit's institute's end-blocking of the formula of a=i and b=2 (1.1) wherein and
The poly-organohydrogensiloxanes oil (2) of-at least a straight chain, its contained strand is to be formed by represented functional unit of the formula of d=1 and e=1 (2.1) wherein and the represented functional unit of formula (2.2) of optional wherein g=2, and each end of these strands is all by the represented functional unit institute end-blocking of the formula of d=1 and e=2 (2.1) wherein.
Catalyst (3) also is well-known.Preferred platinum compounds and the rhodium compound of using.Most preferably use the complex that platinum and organic matter form (as at patent documentation US-A-3,159,601, US-A-3,159,602, US-A-3,220,972 and European patent EP-A-0,057,459, EP-A-0,188,978 and EP-A-0,190, described in 530 those) and the complex of platinum and vinylic organosiloxane (as at patent documentation US-A-3,419,593, US-A-3,715,334, US-A-3,377,432 and US-A-3, those described in 814,730).About preferred catalyst platinum, the weight consumption of catalyst (3) is to calculate by the weight of metal platinum, and generally is 2-100ppm, is preferably 5-50ppm, and these weight are based on that the gross weight of composition calculates.
Polysiloxane composition of the present invention also comprises at least a addition reaction delayed-action activator (6) (cross-linked inhibitor) that is selected from the following compounds:
-by the polysiloxane that at least one thiazolinyl (may optionally be annular form) replaces, tetramethyl-ethylene base tetrasiloxane is particularly preferred,
-pyridine,
-organic phosphine and phosphite ester,
-unsaturated amides,
-maleic acid alkanol ester and
-alkynyl alcohols.
These alkynyl alcohols (referring to patent documentation FR-B-1,528,464 and FR-A-2,372,874) that constituted the part of preferred hot hydrosilylation reactions blocking agent have with following formula:
R′-(R″)C(OH)-C≡CH
Wherein:
-R ' is the alkyl or phenyl of straight or branched,
-R " be the alkyl or phenyl of H or straight or branched, wherein radicals R ', the contained carbon atom of R " and the carbon atom on the α position of three key can randomly form ring-type, precondition is R ' and R " add up at least 5, be preferably 9-20.
Described alcohols is preferably and is selected from boiling point greater than those of 250 ℃.Below be the example of these alcohols:
-1-acetenyl-1-cyclohexanol,
-3-methyl isophthalic acid-dodecyne-3-alcohol,
-3,7,11-trimethyl-1-dodecyne-3-alcohol,
-1,1-diphenyl-2-propine-1-alcohol,
-3-ethyl-6-ethyl-1-n-heptylacetylene-3-alcohol,
-2-methyl-3-butyne-2-alcohol and
-3-methyl isophthalic acid-15 alkynes-3-alcohol.
These alpha-acetylenes base alcohols are commercially available products that get.
The amount of this type of delayed-action activator (6) accounts for 0.01 weight %-0.1 weight % of composition total weight.
Composition of the present invention can randomly contain well-known stabilizing agent in the field of organic silicon, for example orthophosphoric acid solution.In final composition, the amount of this type of stabilizing agent is preferably the 0.01 weight %-0.1 weight % that accounts for composition total weight.
According to known method itself, one or more conventional additives (for example colouring agent) can be added in the silicone elastomer composition.
According to another aspect among these aspects, the present invention relates to a kind of application of precursor systems in polysiloxane composition as herein described that comprises two parts.This type of precursor systems is the form of two divided portion A and B, and these two parts will be mixed together and form composition; A part among these two part A or the B contains: catalyst (3), and single a kind of by in (1) or (2) represented two kinds of polysiloxane.Another feature of this precursor systems is: contain the part A of polysiloxane (2) or B and do not contain compound (4.3) in the adhesion promoter (4), and the part A or the B that comprise the compound (4.1) in the adhesion promoter (4) do not contain catalyst (3).Another feature of this precursor systems is that resin (5) can be used among part A or the part B or is used for part A and B simultaneously, and catalyst (3) can not be present in the part A or B that contains polysiloxane (2) and resin (5) simultaneously.
Therefore, part A (for example) contains a part and the optional cross-linked inhibitor (6) of compound (4.1) in the part, polysiloxane (2), adhesion promoter (4) of polysiloxane (1) and (4.2), resin (5), and part B (for example) contains the compound (4.3) in the remainder, catalyst (3), adhesion promoter (4) of polysiloxane (i), the remainder and the optional colouring agent base-material of resin (5).
The viscosity of part A and B and their formed mixtures can be by changing each component amount and regulated by the polysiloxane of selecting different viscosities.
In case part A and B mix, they have just formed the cold curing polysiloxane composition of matching while using, and said composition can be applied on the base material by any suitable coating device (for example scraper or roller).
Though the composition that puts on the base material that will apply can carry out cold crosslinked, promptly crosslinked under temperature near room temperature (23 ℃), but, it is pointed out that according to composition of the present invention also can by means of the heating and/or electromagnetic radiation (electron beam) thus carry out crosslinked with accelerated mode.
Composition of the present invention can be used to cover or apply the flexible substrate of porous, especially woven, knitting or non-woven fiber base material, the preferably woven fabric of being made by the fiber or their mixture in natural or synthetic source.The example comprises cotton, hair, silk, jute, flax, cellulose acetate, polyester (comprising PETG) fiber, polyamide (comprising nylon) fiber, acrylic fibers, polyolefine fiber, aramid fibre, azlon, glass fibre, modified acrylic fibre, novoloid fibre (novoloids), long-chain dicyano vinyl polymerization fibres, staple fibre, polyvinylidene chloride fiber, spandex, vinyl fiber, vinyon, regenerated celulose fibre, estron, or the like.The blending thing of natural fiber and synthetic fibers also can use.Most preferably, this fabric is made of polyester fiber.
The polyester filament yarn (nylon lacks durability, and is not suitable for medical barrier fabric usually) that medical textile of the present invention is preferably by 100% is made into.In order to obtain desirable Density, the dawn number of yarn generally is in the scope at 50-150 dawn, and the sum of the warp thread of per inch and weft yarn (being called " complete organization thread count (round count) " sometimes) is at least 100.
The weight of woven fabric before arrangement is about 60-300g/m
2, be preferably 60-180g/m
2, wherein about 75g/m
2It is optimal value.
Before coating, usually this woven fabric is washed with dry so that remove exotic (as suede), preferably make it to contact then, wherein, before coat operations, various additives can be added in the fabric with handling bath by the equipment of textile finishing easily that uses any standard.Typical additive comprises: antimicrobial, as 3-(trimethoxysilyl) propyl group octadecyl alkyl dimethyl ammonium chloride; Antistatic compound is as quaternary ammonium and alkyl ammonium compounds; And fire retardant, as cyclic phosphate; All these be well known in the prior art (for example referring to U.S. Patent No. 4,919,998).As U.S. Patent No. 5,183,702 is disclosed, also the hydrophilic finish agent can be put on the hydrophobic polyester textile before coating is handled.
After fabric was handled with any above-mentioned additive, fabric was dried and removes moisture, further processes afterwards.
In the method for the invention, use conventional high speed coating device (as scraper and roller) branch two procedures that the polysiloxane coating composition is put on the side of polyester textile: first procedure is with 10-45g/m
2Amount the additional first lower coating of weight is put on the fabric, second operation work is with 20-105g/m
2Amount second coating that weight is higher put on first coating, make total impost of polymer composition reach 30-150g/m
2
Compare with a procedure method, two procedures applies technology and has at least two major advantages.At first, by on the surface of first coating, applying second coating, can almost avoid occurring any possible pin hole or not coated material area; And importantly, applied additional mechanical pressure, thereby impel polymer composition to enter into this fabric.That is to say that when using the coating that only one deck impost is heavier, scraper is set away from base material, so that allow relatively large polymer composition to flow on the fabric, therefore, the pressure that is directly put on the fabric by scraper is very little.Yet at first applying coating extremely thin, that impost is light, scraper is in fact very approaching with fabric face, makes mechanical pressure almost directly put on the fabric.As a result, low viscous polymer composition is pushed through in the space of textile fabric basically.This additonal pressure is very important, and is especially all the more so for the fabric that is intended for use medical purposes (for example operation dress and operation towel), this be because this kind fabric knit very closely, that is, and they have very smooth surface and the space minimum.
Usually make uncured coated fabric by heated oven, to quicken the curing of elastomer coating; Its condition is generally: kept 15 seconds-4 minutes under about 180 ℃-220 ℃ temperature; Optimum time and temperature can easily be determined according to composition, coating layer thickness etc.For two procedures of the present invention, make the solidification delay of the coating that at first applies, impost is lower or more slow, so that allow low viscous composition more effectively infiltrate in the fabric.Be used for making a kind of of all multi-methods of solidification delay be: only adopt lower temperature in the initial platform in baking oven.For example, conventional baking oven may be about the 30-90 foot, and independently platform, chamber or heating unit are formed by about 2-12.Though conventionally, about 180 ℃ about 220 ℃ of being warming up in final unit of the temperature of these platforms from first module, however in process of the present invention, first coating can only be solidified for about 150 ℃ initial cell with temperature.Chance on, the heating in the initial solidification process under this low temperature causes that in fact at first the viscosity of polymer composition descends, and reaction suppressor just has an opportunity to volatilize afterwards, therefore solidifies beginning.Certain like this first coating that helps infiltrated in the fabric before crosslinked, solidified subsequently.Therefore we can say that first coating of the present invention comes down to be fabric face " priming ".
After first coating was solidified basically or be partly solidified at least, the second higher coating of impost was applied on first coating, and adopted time and temperature commonly used to make it to solidify apace.
In use; that side of the uncoated of coated fabric the outer surface of coated fabric (below be called) is towards potential contaminated environment or hazardous environment (environment that for example contains body fluid and/or infectious microorganism), and that side through the constituent polyorganosiloxane composition coating of coated fabric the inner surface of coated fabric (below be called) is then towards the surface that needs protection (as medical personnel's the health or the zone of surgical site).
Because (for example) when coated fabric is used for medical clothes, it will contact with medical personnel's skin, so for the inner surface that makes coated fabric has more aesthetic feeling and makes it to have comfortable sense of touch, preferably, with the cloth furniture of softness (being internal layer) preferably by liner that natural fiber or natural/synthetic fibers blending thing constitutes be stacked to this coated fabric on the inner surface of polysiloxanes coating.The example of this type of liner comprises by flax, cotton, and cotton/polyester blended thing constitute those.Be also contemplated that, can be with the inner surface of coated fabric stacked and normally be sewn into: as i) on the previously prepared textile fabrics (as operation dress or operation towel), especially to need on the zone (as the front (as apron) and the sleeve of this operation dress) of special protection; Or ii) be made on goods (as above operation dress that exemplifies or operation towel) this textile material before at textile material and coated barrier fabric.
When the durability of estimating barrier fabric (especially medical barrier fabric) or serviceability, most important aspect be anti-hydrostatic test (as ASTM D 751 (A), the hydraulic test of Mullen type; With ASTM D 751 (B), HydroSuter test) result.In Mullen test, the coated side of fabric is contacting with fluid (being generally water) under cumulative pressure, and the pressure during record fabric " seepage ".For medical barrier fabric field, importantly at the number of times that " seepage " washing/hot-pressing processing circulation that can bear of fabric before takes place.
In HydroSuter test, coated fabric is positioned in the cylinder of device, towards the rising water column, promptly coated side is towards water to allow outer surface (promptly common surface towards potential hazardous environment).Therefore, not only requiring elastomer coating must be permeable anything but for liquid, but also must prove that it has excellent cohesive for the fabric with tensile property, in order to avoid fabric breaks under the pressure effect of the hydraulic pressure that raises gradually.In this test, in case if water droplet or material breaks occur, then coated base material had just lost efficacy.The same with the Mullen test, the number of the importantly washing that fabric can bear before water droplet occurs/hot-pressing processing circulation.
Though the invention provides a kind of modified barrier fabric that can satisfy the strictest standard that medical barrier fabric industry proposed, but should be understood that, the present invention is not limited to this field, and the product of technology in fact of the present invention and this explained hereafter of use can be used for any application that needs similar performance, as be used for tent fabric, outdoor clothes and covering, or the like.
In this article, term " basically by ... form " do not get rid of the existence of the additional materials that the desirable characteristics to given composition or product has no significant effect.
Except example, perhaps except as otherwise noted the time, being used to of using in this article expresses the amount of component or whole numerical value of reaction condition all are understood that all to be modified by term " about " in all cases.
Following example is used to illustrate the application as the coating of the medical barrier fabric of polyester of preparation of compositions method and said composition, these examples will make that the present invention is more readily understood, and make advantage of the present invention and the embodiment that can Gong select for use become apparent.These examples limit the present invention in no instance.Improved performance characteristic of the present invention is shown by contrast test.
All percentage and ratio all are considered to calculate by weight, except as otherwise noted.
Specific washing/the hot-pressing processing that is used for following example circulates in the following table 1 to be illustrated:
Table 1: textile washing program
| Operation | Time | Water level | Temperature | Washing agent | pH |
| Flushing | 2 minutes | - | Warm | - | 7 |
| The slubbing washing | 8 minutes | Low | 150°F | Alkaline detergent | 10.5 |
| Soap is bathed | 6 minutes | Low | 160°F | Washing agent | 9 |
| Bleaching | 6 minutes | Low | 150°F | Bleaching agent | 8.5 |
| Rinsing | 2 minutes | High | 160°F | - | 8 |
| Rinsing | 2 minutes | High | 140°F | - | 7.5 |
| Arrangement | 3 minutes | Low | 110°F | Antichlor | 7 |
| Centrifugal dehydration | 1 minute | - | - | - | - |
| Rinsing | 2 minutes | High | 110°F | - | 7 |
| Acid bath | 5 minutes | Low | 100°F | Acid bath | 7 |
| Centrifugal dehydration | 2 minutes | - | - | - | - |
After drying, adopt the hot-pressing processing circulation that fabric was sterilized about 15 minutes down at 260 °F.
In these examples, use Brookfield Viscometer at room temperature to measure viscosity.
Example I
Contain the preparation of the polysiloxane coating composition of filler: Comparative Examples 1
1.1-comprise the preparation of the part A in the system of two parts:
At room temperature following material is incorporated in the reactor:
47.7 the pre-mixture of part, it is made up of following material:
(a) 40 weight %'s has a MM
ViDD
ViThe resin of Q structure, it contains the vinyl (Vi) of 0.8 weight % and by (the CH of 27 weight %
3)
3SiO
0.5(the CH of functional unit, 0.15 weight %
3)
2ViSiO
0.5(the CH of functional unit, 60 weight %
3)
2(the CH of SiO functional unit, 2.4 weight %
3) SiO of ViSiO functional unit and 9.6 weight %
2The functional unit constitutes [this component is known as resin (5) hereinafter]; With
(b) resin of 60 weight %, it is that each end of the chain is all by (CH
3)
2ViSiO
0.5The viscosity of functional unit's end-blocking is 60, the polysiloxane of 000mPas [this component is known as diluent A hereinafter].
The full-bodied polysiloxane oil of 27 weight portions, its by each end of the chain all by (CH
3)
2ViSiO
0.5The polydimethyl siloxane oil of functional unit's end-blocking constitutes, and its viscosity is 100, contains 0.003 Vi-Si functional group [this component is known as heavy oil (1) hereinafter] in 000mPas and the every 100g oil;
16 parts do not stand the calcium carbonate (CaCO that compatibility is handled (as heating or increase the functionality of this material surface) as yet
3) (selling) as Albacar 5970: this filler usually is used to the tear resistance that strengthens sewn seams and strengthen fabric;
The viscosity of 6 weight portions is the polysiloxane oil of 25mPas, its by each end of the chain all by (CH
3)
2HSiO
0.5Contain in poly-(dimethyl) (hydrogen ylmethyl) silicone oil formation of functional unit's end-blocking and the every 100g oil and amount to 0.7 H-Si functional group (wherein 0.6 H-Si functional group is positioned at strand) [this component is known as oil (2) hereinafter];
Compound (4.1) in the adhesion promoter of 1 weight portion (4), it constitutes [this component is known as VTMO (4.1) hereinafter] by vinyltrimethoxy silane; With
Compound (4.2) in the adhesion promoter of 1 weight portion (4), it constitutes [this component is known as GLYMO (4.2) hereinafter] by the 3-glycidoxypropyltrimewasxysilane.
1.2-comprise the preparation of the part B in the system of two parts:
At room temperature following material is incorporated in the reactor:
45 parts pre-mixture, it is made up of following material:
(a) 40 weight %'s has a MM
ViDD
ViThe resin of Q structure, it contains the vinyl (Vi) of 0.8 weight % and by (the CH of 27 weight %
3)
3SiO
0.5(the CH of functional unit, 0.15 weight %
3)
2ViSiO
0.5(the CH of functional unit, 60 weight %
3)
2(the CH of SiO functional unit, 2.4 weight %
3) SiO of ViSiO functional unit and 9.6 weight %
2The functional unit constitutes [this component is known as resin (5) hereinafter]; With
(b) resin of 60 weight %, it is that each end of the chain is all by (CH
3)
2ViSiO
0.5The viscosity of functional unit's end-blocking is 60, the polysiloxane of 000mPas [this component is known as diluent A hereinafter].
The full-bodied polysiloxane oil of 51 weight portions, its by each end of the chain all by (CH
3)
2ViSiO
0.5The polydimethyl siloxane oil of functional unit's end-blocking constitutes, and its viscosity is 100, contains 0.003 Vi-Si functional group [this component is known as heavy oil (1) hereinafter] in 000mPas and the every 100g oil;
Compound (4.3) in the adhesion promoter of 4 weight portions (4), it is by butyl titanate Ti (OBu)
4Constitute [this component is known as TBT (4.3) hereinafter]; With
0.02 the platinum metal catalyst of weight portion, the form of the organometallic complex that its content with metal platinum is 10 weight % (known title is the Karstedt catalyst) is introduced into [this component is known as platinum catalyst (3) hereinafter].
1.3-the preparation of coating composition:
At room temperature mix the part A of 100 weight portions and the part B of 10 weight portions, obtain coating composition.Obtained the Comparative composition that is used to contrast thus.
Example II
The polysiloxane coating composition that contains filler that example I is made is used to apply polyester woven fabric
2.1-application program:
Adopt common roller scraper technology that the composition of example I is deposited on the polyester woven fabric at 70 dawn.Adopt a procedure method with coating composition with about 135g/m
2Impost deposit on this fabric.Then elastomer coating is placed baking oven and, make it curing at 180 ℃ times crosslinked 80 seconds.
Then coated fabric is carried out repeatedly the operation of washing/hot-pressing processing mentioned above/drying cycles, and at interval fabric sample is tested with regular time, whether still keep enough protection barriers to measure it.
2.2-result:
The represented result of counting who takes place to destroy as the barrier fabric of being made by method as described in the above example II when carrying out Mullen and HydroSuter test shows: between coating and the woven polyester base material significant leafing has taken place; And after washing/hot-pressing processing/drying cycles of 25-50 time of experience, protect barrier to be damaged.
Example III
The polysiloxane coating composition that contains filler of example I is used to apply polyester woven fabric: process modification 1
3.1-application program:
With the same in the example 2.1, adopt common roller scraper technology that the composition of example I is deposited on the polyester woven fabric at 70 dawn.But this coating composition is to adopt two procedures method deposition; First coating is lower (the about 37g/m of impost
2) coating, and second coating that on the surface of first coating, applies higher (the about 98g/m that is impost
2) coating: the same with example 2.1, make total impost of fabric remain about 135g/m
2With first elastomer coating in baking oven (be initiated with 180 ℃ and be 200 ℃ when finishing) crosslinked 60 seconds, so that first coating is solidified.Make then the fabric that has two coatings through time of 80 seconds once more by baking oven (be initiated with 180 ℃ and be 200 ℃ when finishing), so that make the curing of second coating.
Then coated fabric is carried out repeatedly the operation of washing/hot-pressing processing mentioned above/drying cycles, and at interval fabric sample is tested with regular time, whether still keep enough protection barriers to measure it.
3.2-result:
Show in the represented result of counting who carries out taking place to destroy when Mullen tests with HydroSuter as the barrier fabric of making by method as described in the above example III: improve though it is compared with the procedure method of example II slightly; but between coating and the woven polyester base material a large amount of leafing has taken place still; and after the about 50 times washing/hot-pressing processing/drying cycles of experience, the protection barrier is damaged.
Example IV
The polysiloxane coating composition that contains filler of example I is used to apply polyester woven fabric: process modification 2
4.1-application program:
The same with example 3.1, adopt common roller scraper technology that the composition of example I is deposited on the polyester woven fabric at 70 dawn.Identical with example 3.1 in addition is that this coating composition is to adopt two procedures method deposition; First coating is lower (the about 37g/m of impost
2) coating, and second coating that on the surface of first coating, applies higher (the about 98g/m that is impost
2) coating: make total impost of fabric remain about 135g/m
2But, first elastomer coating is being initiated with 150 ℃ and be in 200 ℃ the baking oven crosslinked 60 seconds when finishing, so that postpone this cross-linking process, thereby before solidifying and before applying second coating, make coating thin, uncured low viscosity polysiloxane composition deeper penetrates in the polyester woven fabric.Make then the fabric that has two coatings through time of 80 seconds once more by baking oven (when being initiated with 180 ℃ and end is 200 ℃), so that second coating is solidified apace.
Then coated fabric is carried out repeatedly the operation of washing/hot-pressing processing mentioned above/drying cycles, and at interval fabric sample is tested with regular time, whether still keep enough protection barriers to measure it.
4.2-result:
Show in the represented result of counting who carries out taking place to destroy when Mullen tests with HydroSuter as the barrier fabric of making by method as described in the above example IV: though it is compared with two procedures, quick-setting method among the example III and slightly improve; but between coating and the woven polyester base material some leafing have taken place still; and after washing/hot-pressing processing/drying cycles of about 50-75 time of experience, protect barrier to be damaged.
Example V
The preparation of polysiloxane coating composition of the present invention:
5.1-comprise the preparation of the part A in the system of two parts:
At room temperature following material is incorporated in the reactor:
44.6 the polydimethyl siloxane oil of the ethenyl blocking of weight portion, its viscosity are 100,000cps, mean molecule quantity are about 110,000g/ mole [this component is known as heavy oil (1) hereinafter];
47.7 the mixture of weight portion, its by MDViQ resin (40%), with viscosity be 60,000cps and mean molecule quantity are about 90, the polydimethyl siloxane oil of the ethenyl blocking of 000g/ mole (60%) is formed [this component is known as resin (5) hereinafter];
5.6 the poly-organohydrogensiloxanes crosslinking agent of weight portion, its contain its molecule chain end with and strand on the hydrogen atom that links to each other with silicon atom of fixed intervals place.Its viscosity is 25cps, and mean molecule quantity is 2,500, and hydrogen atom content is 0.7 weight %.[this component is known as oil (2) hereinafter];
0.025 the inhibitor of weight portion, it constitutes [this component is known as inhibitor (6) hereinafter] by 1-acetenyl-1-cyclohexanol;
Compound (4.1) in the adhesion promoter of 1 weight portion (4), its alkoxylate organosilan by vinyl functional (being methacrylic acid 3-trimethoxysilyl propyl ester) constitutes [this component is known as MEMO (4.1) hereinafter];
Compound (4.2) in the adhesion promoter of 1 weight portion (4), it constitutes [this component is known as GLYMO (4.2) hereinafter] by having epoxy functionalized alkoxylate organosilan (being 3-glycidoxypropyl-trimethoxy silane); With
0.025 the stabilizing agent of weight portion, it is with orthophosphoric acid (H
3PO
4) be basis [this component is known as SOL 110 hereinafter].
5.2-comprise the preparation of the part B in the system of two parts:
At room temperature following material is mixed in reactor:
50.4 the polydimethyl siloxane oil of the ethenyl blocking of weight portion, its viscosity are 100,000cps, mean molecule quantity are about 110,000g/ mole [oil (1)];
44.45 the mixture of weight portion, its by MDViQ resin (40%), with viscosity be 60,000cps and mean molecule quantity are about 90, the polydimethyl siloxane oil of the ethenyl blocking of 000g/ mole (60%) is formed [resin (5)];
0.0215 the platinum metal catalyst of weight portion, i.e. chloroplatinic acid [platinum catalyst (3)]; With
4.95 the compound (4.3) in the adhesion promoter of weight portion (4), its alkoxy titanium compound by the condensation catalyst effect of playing adhesion promoter effect and adhesion promoter system (is butyl titanate Ti (OBu)
4) formation [TBT (4.3)].
5.3-comprise the preparation of the system of two parts:
At room temperature mix the part A of 100 weight portions and the part B of 10 weight portions, obtain to comprise the system of two parts.The all components of said composition is all listed in the Table II.
Table II: all components of polysiloxane composition
| Component | Example V |
| Resin 5 | 47.4 |
| Oil 1 | 45.13 |
| Oil 2 | 5.09 |
| Inhibitor 6 | 0.023 |
| Platinum catalyst 3 | 0.0025 |
| Compound (4.1): MEMO | 0.91 |
| Compound (4.2): GLYMO | 0.91 |
| Compound (4.3): TBT | 0.45 |
| Stabilizing agent: SOL 110 | 0.023 |
By the composition in the existing textile coating field of the composition institute example of Comparative Examples I, and be by the composition of the present invention of the composition institute example of the example V main difference between the two: a) composition of the present invention does not contain any (strengthening or non-enhancing) filler; B) content of the catalyst of the adhesion promoter in the composition of the present invention is higher, i.e. Ti (OBu)
4(TBT) content is brought up to 0.45% (with the total weight of composition) from 0.36%; And c) have cross-linked inhibitor in the composition of the present invention, except other advantage, cross-linked inhibitor also makes the viscosity of crosslinked first coating before in baking oven reduce.
Example VI
The polysiloxane coating composition of example VI is used to apply polyester woven fabric: process modification 3
6.1-application program:
Adopt common roller scraper technology that the composition (being composition of the present invention) of example V is deposited on the polyester woven fabric at 70 dawn.The same with example 4.1, this coating composition is to adopt two procedures method deposition; First coating is lower (the about 37g/m of impost
2) coating, and second coating that on the surface of first coating, applies higher (the about 98g/m that is impost
2) coating: make total impost of fabric remain about 135g/m
2In addition, identical with example 4.1 is, first elastomer coating is being initiated with 150 ℃ and be in 200 ℃ the baking oven crosslinked about 60 seconds when finishing, so that postpone this cross-linking process, thereby before solidifying and before applying second coating, make coating thin, uncured low viscosity polysiloxane composition deeper penetrates in the polyester woven fabric.Make then the fabric that has two coatings through time of 80 seconds once more by baking oven (when being initiated with 180 ℃ and end is 200 ℃), so that second coating is solidified apace.
Then coated fabric is carried out repeatedly the operation of washing/hot-pressing processing mentioned above/drying cycles, and at interval fabric sample is tested with regular time, whether still keep enough protection barriers to measure it.
6.2-result:
The represented result of counting who takes place to destroy as the barrier fabric made by method as described in the above example VI when carrying out Mullen and HydroSuter test shows: observing before any sign that coating protection is damaged, significant increase has taken place in the number of times of washing/hot-pressing processing that fabric of the present invention can stand/drying cycles operation.Unexpectedly, this coated fabric can stand the extremely harsh washing/hot-pressing processing/drying cycles operation greater than 75 times, and its protective value is without any loss, and coating and woven polyester base material do not have that delamination occurs yet.
The scope of this discovery is illustrated by appending claims.
Claims (25)
1. method of making barrier fabric, this method may further comprise the steps:
Prepare a kind of coating composition, this coating composition is composed of the following components basically:
(1) at least a polysiloxane oil, this polysiloxane oil per molecule has at least two C that are connected with silicon
2-C
6Thiazolinyl,
(2) at least a poly-organohydrogensiloxanes oil, this poly-organohydrogensiloxanes oil per molecule has at least two hydrogen atoms that are connected with silicon,
(3) at least a catalyst of effective catalytic amount, this catalyst contains at least a metal that belongs to platinum family,
(4) adhesion promoter, this adhesion promoter is grouped into by following one-tenth:
(4.1) methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
(4.2) at least a organo-silicon compound with at least one epoxy radicals and
(4.3) account at least a metal M chelate of 0.38 weight %-2.0 weight % of gross weight of described coating composition and/or at least a by formula M (OJ)
nThe metal alkoxides of expression, wherein n equals the chemical valence of M, and J is the C of straight or branched
1-C
8Alkyl, M is selected from: Ti, Zr, Ge, Li, Mn, Fe, Al and Mg,
(5) at least a polysiloxane resin, this polysiloxane resin has the R that is selected from as the M functional unit
3SiO
0.5, as D functional unit's R
2SiO, as T functional unit's RSiO
1.5With SiO as the Q functional unit
2In at least two kinds of different functional units, wherein at least a among this functional unit is T or Q functional unit, wherein this R group is identical or different and be the C of straight or branched
1-C
6Alkyl, C
2-C
4Thiazolinyl, phenyl or 3,3,3-trifluoro propyl, the thiazolinyl weight content of this resin be 0.1 weight %-20 weight % and
(6) at least a cross-linked inhibitor;
On a side of woven fabric with described coating composition with 10-45g/m
2Apply first coating;
Solidify described first coating at least in part;
On the described first partly solidified at least coating with described coating composition with 20-105g/m
2Apply second coating, the exposed surface of this second coating is considered to the inner surface of described fabric at this moment, and the surface of the not band coating of described fabric is considered to outer surface at this moment;
And
Solidify described second coating, precondition is the solidification rate that the solidification rate of described first coating is lower than described second coating.
2. the described method of claim 1, this method comprises following additional step:
Second fabric is stacked on the described inner surface of described coated barrier fabric.
3. the described method of claim 1, wherein in described coating composition:
Per molecule has at least two C that are connected with silicon
2-C
6The content of the described polysiloxane oil of thiazolinyl is 10 weight %-70 weight %;
The content that per molecule has the described poly-organohydrogensiloxanes oil of at least two hydrogen atoms that are connected with silicon is 2 weight %-10 weight %;
The content of described adhesion promoter is 1.1 weight %-12 weight %;
The content of described resin is 10 weight %-70 weight %; And
The content of described cross-linked inhibitor is 0.01 weight %-0.1 weight %, and all above-mentioned weight % are based on the total weight of described composition.
4. the described method of claim 1, the described organo-silicon compound in the wherein said adhesion promoter comprise:
-by the represented compound of following general formula:
Wherein:
R
6Be the C of straight or branched
1-C
4Alkyl,
R
7Be the alkyl of straight or branched,
Y equals 0,1,2 or 3, and
Wherein
-E and D are the C of identical or different straight or branched
1-C
4Alkyl,
-z equals 0 or 1,
-R
8, R
9And R
10Be identical or different groups, and the C of expression hydrogen or straight or branched
1-C
4Alkyl,
-R
8With R
9Or R
8With R
10Can also with shown in two contained carbon of epoxy radicals constitute 5-7 unit alkyl ring,
Perhaps
-having epoxy functionalized polydiorganosiloxanepolyurea, this polydiorganosiloxanepolyurea comprises:
-by the represented at least a siloxy functional unit of following formula:
X
p G
q Si O
[4-(p+q)]/2 (4.2b1)
Wherein
-X is the group that as above defines in general formula (4.2a),
-G is to the monovalence alkyl of described activity of such catalysts without any detrimental effect,
P=1 or 2, and
Q=0,1 or 2,
P+q=1,2 or 3 wherein,
And
-optional, at least a siloxy functional unit that is expressed from the next:
G
r Si O
[4-r]/2 (4.2b2)
Wherein the implication of G is with above-described identical, and the r value is between 0-3.
5. the described method of claim 4, the described organo-silicon compound in the wherein said adhesion promoter are 3-glycidoxypropyltrimewasxysilane (GLYMO).
6. the described method of claim 1, the described metal alkoxides in the wherein said adhesion promoter is an alkoxytitanium.
7. the described method of claim 6, the described alkoxytitanium in the wherein said adhesion promoter is a butyl titanate.
8. the described method of claim 1, wherein said adhesion promoter is grouped into by following one-tenth:
Methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
3-glycidoxypropyltrimewasxysilane (GLYMO) and
Butyl titanate.
9. the described method of claim 8, wherein, it is as follows that the described composition of described adhesion promoter accounts for the weight rate of gross weight of described adhesion promoter separately:
The content of MEMO is 15 weight %-70 weight %;
The content of described organo-silicon compound is 70 weight %-15 weight %; And
The content of described metallo-chelate or metal alkoxides is 5 weight %-30 weight %.
10. the described method of claim 1, wherein per molecule has at least two C that are connected with silicon
2-C
6The described polysiloxane oil of thiazolinyl is made of following functional unit:
(i) by the represented siloxy functional unit of following formula:
T
a Z
b Si O
[4-(a+b)]/2 (1.1)
Wherein:
-T is a thiazolinyl,
-Z is to the monovalence alkyl of described activity of such catalysts without any detrimental effect,
-a is 1 or 2,
-b is 0,1 or 2, and
-a+b between 1-3,
With
(ii) optional, as to be expressed from the next other siloxy functional unit:
Z
c Si O
[4-c]/2 (1.2)
Wherein
The implication of Z is with above-described identical, and
The c value is between 0-3.
11. the described method of claim 10, wherein said T is vinyl or pi-allyl.
12. the described method of claim 1, wherein the described poly-organohydrogensiloxanes oil of per molecule with at least two hydrogen atoms that are connected with silicon is made of following functional unit:
(i) by the represented siloxy functional unit of following formula:
H
d L
e Si O
[4-(d+e)]/2 (2.1)
Wherein:
-L is to the monovalence alkyl of described activity of such catalysts without any detrimental effect,
-d is 1 or 2,
-e is 0,1 or 2, and
The value of d+e between 1-3,
With
(ii) optional, by represented other siloxy functional unit of following general formula:
L
g Si O
[4-g]/2 (2.2)
Wherein
The implication of-L is with above-described identical, and
-g value is between 0-3.
13. a method of making barrier fabric, this method may further comprise the steps:
Prepare a kind of coating composition, this coating composition is composed of the following components basically:
(1) at least a polysiloxane oil, this polysiloxane oil per molecule has at least two C that are connected with silicon
2-C
6Thiazolinyl and constitute by following functional unit:
(i) by the represented siloxy functional unit of following formula:
T
a Z
b Si O
[4-(a+b)]/2 (1.1)
Wherein:
-T is a thiazolinyl,
-Z is to the monovalence alkyl of activity of such catalysts without any detrimental effect,
-a is 1 or 2,
-b is 0,1 or 2, and
The value of-a+b between 1-3,
With
(ii) optional, as to be expressed from the next other siloxy functional unit:
Z
c Si O
[4-c]/2 (1.2)
Wherein
The implication of Z is with above-described identical, and
The c value is between 0-3;
(2) at least a poly-organohydrogensiloxanes oil, this poly-organohydrogensiloxanes oil per molecule has at least two hydrogen atoms that are connected with silicon and is made of following functional unit:
(i) by the represented siloxy functional unit of following formula:
H
d L
e Si O
[4-(d+e)]/2 (2.1)
Wherein:
-L is to the monovalence alkyl of activity of such catalysts without any detrimental effect,
-d is 1 or 2,
-e is 0,1 or 2, and
The value of d+e between 1-3,
With
Other siloxy functional unit (ii) optional, that represent by following general formula:
L
g Si O
[4-g]/2 (2.2)
Wherein
The implication of-L is with above-described identical, and
-g value is between 0-3;
(3) at least a catalyst of effective catalytic amount, this catalyst contains at least a metal that belongs to platinum family,
(4) adhesion promoter, this adhesion promoter is grouped into by following one-tenth:
Methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
Account for described coating composition gross weight 0.38 weight %-2.0 weight % alkoxytitanium and
At least a organo-silicon compound, these organo-silicon compound are made of following functional unit:
(i) by the represented siloxy functional unit of following formula:
H
d L
e Si O
[4-(d+e)]/2 (2.1)
Wherein:
-L is to the monovalence alkyl of described activity of such catalysts without any detrimental effect,
-d is 1 or 2,
-e is 0,1 or 2, and
The value of d+e between 1-3,
With
Other siloxy functional unit (ii) optional, that represent by following general formula:
L
g Si O
[4-g]/2 (2.2)
Wherein
The implication of-L is with above-described identical, and
-g value between 0-3,
(5) at least a polysiloxane resin, this polysiloxane resin has the R that is selected from as the M functional unit
3SiO
0.5, as D functional unit's R
2SiO, as T functional unit's RSiO
1.5With SiO as the Q functional unit
2In at least two kinds of different functional units, wherein at least a among this functional unit is T or Q functional unit, wherein this R group is identical or different and be the C of straight or branched
1-C
6Alkyl, C
2-C
4Thiazolinyl, phenyl or 3,3,3-trifluoro propyl, the thiazolinyl weight content of described resin be 0.1 weight %-20 weight % and
(6) at least a cross-linked inhibitor, this cross-linked inhibitor is selected from:
By the polysiloxane that at least one thiazolinyl replaces, this thiazolinyl can randomly be an annular form,
Pyridine,
Organic phosphine and phosphite ester,
Unsaturated amides,
Maleic acid alkanol ester and
The alkynyl alcohols,
On a side of woven fabric with described coating composition with 10-45g/m
2Apply first coating;
Solidify described first coating at least in part;
On the described first partly solidified at least coating with described coating composition with 20-105g/m
2Apply second coating, the exposed surface of described second coating is considered to the inner surface of described fabric at this moment, and the surface of the not band coating of described fabric is considered to outer surface at this moment;
And
Solidify described second coating, precondition is the solidification rate that the solidification rate of described first coating is lower than described second coating.
14. the described method of claim 13, wherein said T is vinyl or pi-allyl.
15. a method of making barrier fabric, this method may further comprise the steps:
Prepare a kind of coating composition, this coating composition is composed of the following components basically:
(1) mixture of forming by the polydimethyl siloxane oil of the ethenyl blocking of the MDViQ resin of 40 weight % and 60 weight %, the viscosity of this polydimethyl siloxane oil is 60,000cps, average molar mass are 90, the 000g/ mole,
(2) poly-organohydrogensiloxanes oil crosslinking agent, should poly-organohydrogensiloxanes oil crosslinking agent contain its molecule chain end with and strand on the hydrogen atom that links to each other with silicon atom of fixed intervals place, and the viscosity that should gather organohydrogensiloxanes oil crosslinking agent is that 25cps, average molar mass are 2,500g/ mole, hydrogen atom content are 0.7 weight %
(3) chloroplatinic acid of catalytically effective amount,
(4) adhesion promoter, this adhesion promoter is grouped into by following one-tenth:
Methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
3-glycidoxypropyltrimewasxysilane (GLYMO) and
Account for the butyl titanate of 0.38 weight %-2.0 weight % of the gross weight of described coating composition,
(5) polydimethyl siloxane oil of ethenyl blocking, the viscosity of the polydimethyl siloxane oil of this ethenyl blocking are 100, and 000cps and average molar mass are 110, the 000g/ mole,
With
(6) 1-acetenyl-1-cyclohexanol;
On a side of woven fabric with described coating composition with 10-45g/m
2Apply first coating;
Solidify described first coating at least in part;
On the described first partly solidified at least coating with described coating composition with 20-105g/m
2Apply second coating, the exposed surface of this second coating is considered to the inner surface of described fabric at this moment, and the surface of the not band coating of described fabric is considered to outer surface at this moment;
And
Solidify described second coating, precondition is the solidification rate that the solidification rate of described first coating is lower than described second coating.
16. the described method of claim 15, this method comprises following additional step:
Second fabric is stacked on the described inner surface of described coated barrier fabric.
17. a barrier fabric, this barrier fabric is made by the method that may further comprise the steps:
Prepare a kind of coating composition, this coating composition is composed of the following components basically:
(1) at least a polysiloxane oil, this polysiloxane oil per molecule has at least two C that are connected with silicon
2-C
6Thiazolinyl,
(2) at least a poly-organohydrogensiloxanes oil, this poly-organohydrogensiloxanes oil per molecule has at least two hydrogen atoms that are connected with silicon,
(3) at least a catalyst of effective catalytic amount, this catalyst contains at least a metal that belongs to platinum family,
(4) adhesion promoter, this adhesion promoter is grouped into by following one-tenth:
(4.1) methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
(4.2) at least a organo-silicon compound with at least one epoxy radicals and
(4.3) account at least a metal M chelate of 0.38 weight %-2.0 weight % of gross weight of described coating composition and/or at least a by formula M (OJ)
nThe metal alkoxides of expression, wherein n equals the chemical valence of M, and J is the C of straight or branched
1-C
8Alkyl, M is selected from: Ti, Zr, Ge, Li, Mn, Fe, Al and Mg,
(5) at least a polysiloxane resin, this polysiloxane resin has the R that is selected from as the M functional unit
3SiO
0.5, as D functional unit's R
2SiO, as T functional unit's RSiO
1.5With SiO as the Q functional unit
2In at least two kinds of different functional units, wherein at least a among this functional unit is T or Q functional unit, wherein this R group is identical or different and be the C of straight or branched
1-C
6Alkyl, C
2-C
4Thiazolinyl, phenyl or 3,3,3-trifluoro propyl, the weight content of the thiazolinyl of this resin are 0.1 weight %-20 weight %,
With
(6) at least a cross-linked inhibitor;
On a side of woven fabric with described coating composition with 30-45g/m
2Apply first coating;
Solidify described first coating at least in part;
On the described first partly solidified at least coating with described coating composition with 90-105g/m
2Apply second coating, the exposed surface of this second coating is considered to the inner surface of described fabric at this moment, and the surface of the not band coating of described fabric is considered to outer surface at this moment;
With
Solidify described second coating, precondition is the solidification rate that the solidification rate of described first coating is lower than described second coating.
18. the described barrier fabric of claim 17, this barrier fabric have second fabric on the described inner surface that is stacked in described coated fabric.
19. barrier fabric of making by the described method of claim 4.
20. barrier fabric of making by the described method of claim 6.
21. barrier fabric of making by the described method of claim 8.
22. barrier fabric of making by the described method of claim 13.
23. the described barrier fabric of claim 22 wherein, is stacked in second fabric on the described inner surface of described coated fabric.
24. a barrier fabric, this barrier fabric is made by the method that may further comprise the steps:
Prepare a kind of coating composition, this coating composition is composed of the following components basically:
(1) mixture of forming by the polydimethyl siloxane oil of the ethenyl blocking of the MDViQ resin of 40 weight % and 60 weight %, the viscosity of the polydimethyl siloxane oil of this ethenyl blocking is 60,000cps, average molar mass are 90, the 000g/ mole,
(2) poly-organohydrogensiloxanes oil crosslinking agent, should poly-organohydrogensiloxanes oil crosslinking agent contain its molecule chain end with and strand on the hydrogen atom that links to each other with silicon atom of fixed intervals place, the viscosity that should gather organohydrogensiloxanes oil crosslinking agent is that 25cps, average molar mass are 2,500g/ mole, hydrogen atom content are 0.7 weight %
(3) chloroplatinic acid of catalytically effective amount,
(4) adhesion promoter, this adhesion promoter is grouped into by following one-tenth:
Methacrylic acid 3-trimethoxysilyl propyl ester one type of silane (MEMO),
3-glycidoxypropyltrimewasxysilane (GLYMO) and
Account for the butyl titanate of 0.38 weight %-2.0 weight % of the gross weight of described coating composition,
(5) polydimethyl siloxane oil of ethenyl blocking, the viscosity of the polydimethyl siloxane oil of this ethenyl blocking are 100, and 000cps, average molar mass are 110, the 000g/ mole,
With
(6) 1-acetenyl-1-cyclohexanol;
On a side of woven fabric with described coating composition with 10-45g/m
2Apply first coating; Solidify described first coating at least in part;
On the described first partly solidified at least coating with described coating composition with 20-105g/m
2Apply second coating, the exposed surface of this second coating is considered to the inner surface of described fabric at this moment, and the surface of the not band coating of described fabric is considered to outer surface at this moment;
With
Solidify described second coating, precondition is the solidification rate that the solidification rate of described first coating is lower than described second coating.
25. by the barrier fabric that the method described in the claim 24 is made, wherein this fabric has:
Be stacked in second fabric on the described inner surface of described coated barrier fabric.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58014904P | 2004-06-16 | 2004-06-16 | |
| US60/580,149 | 2004-06-16 | ||
| US11/153,157 | 2005-06-15 |
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| Publication Number | Publication Date |
|---|---|
| CN1968805A CN1968805A (en) | 2007-05-23 |
| CN100515757C true CN100515757C (en) | 2009-07-22 |
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ID=38077089
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800197273A Expired - Fee Related CN100515757C (en) | 2004-06-16 | 2005-06-16 | Improved elastomer coated, protective barrier fabric and process for producing same |
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| DE102009002828A1 (en) | 2009-05-05 | 2010-11-11 | Wacker Chemie Ag | Compositions for textile coatings |
| CN103724941A (en) * | 2013-12-26 | 2014-04-16 | 东莞市广海大橡塑科技有限公司 | Flowable resin |
| KR101918376B1 (en) | 2013-12-31 | 2019-01-29 | 블루스타 실리콘즈 상하이 컴퍼니 리미티드 | Fibrous support comprising a silicone coating |
| US11639149B2 (en) * | 2017-03-15 | 2023-05-02 | Shin-Etsu Chemical Co., Ltd. | Flame-resistant airbag, method of manufacturing flame-resistant airbag, and addition-curable liquid silicone rubber composition for flame-resistant airbags |
| CN112004903B (en) * | 2017-12-28 | 2022-09-30 | 埃肯有机硅（上海）有限公司 | Low TVOC release silicone composite sheet |
| WO2020232568A1 (en) * | 2019-05-17 | 2020-11-26 | Dow Silicones Corporation | Coating composition and its uses |
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