CN113832733B - Polyoxymethylene fiber finishing agent, self-repairing super-hydrophobic fabric and preparation method - Google Patents
Polyoxymethylene fiber finishing agent, self-repairing super-hydrophobic fabric and preparation method Download PDFInfo
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- CN113832733B CN113832733B CN202110989541.1A CN202110989541A CN113832733B CN 113832733 B CN113832733 B CN 113832733B CN 202110989541 A CN202110989541 A CN 202110989541A CN 113832733 B CN113832733 B CN 113832733B
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- Prior art keywords
- polyoxymethylene
- finishing
- polyoxymethylene fiber
- fiber
- finishing agent
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- 229920006324 polyoxymethylene Polymers 0.000 title claims abstract description 116
- -1 Polyoxymethylene Polymers 0.000 title claims abstract description 114
- 229930040373 Paraformaldehyde Natural products 0.000 title claims abstract description 110
- 239000000835 fiber Substances 0.000 title claims abstract description 110
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 53
- 239000004744 fabric Substances 0.000 title claims abstract description 44
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 238000004519 manufacturing process Methods 0.000 title description 3
- 229920000642 polymer Polymers 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 30
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 16
- 239000005543 nano-size silicon particle Substances 0.000 claims description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims description 13
- 229920001451 polypropylene glycol Polymers 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 6
- AZUXXYCNTKYZJB-UHFFFAOYSA-N chloro(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[SiH2]Cl AZUXXYCNTKYZJB-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003999 initiator Substances 0.000 claims description 6
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 6
- 229910021645 metal ion Inorganic materials 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 229910001379 sodium hypophosphite Inorganic materials 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229960005070 ascorbic acid Drugs 0.000 claims description 3
- 235000010323 ascorbic acid Nutrition 0.000 claims description 3
- 239000011668 ascorbic acid Substances 0.000 claims description 3
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 3
- 239000012279 sodium borohydride Substances 0.000 claims description 3
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims 1
- XGCTUKUCGUNZDN-UHFFFAOYSA-N [B].O=O Chemical compound [B].O=O XGCTUKUCGUNZDN-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004132 cross linking Methods 0.000 abstract description 5
- 230000008439 repair process Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 abstract description 2
- 230000002209 hydrophobic effect Effects 0.000 description 16
- 238000007598 dipping method Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 5
- 229910052731 fluorine Inorganic materials 0.000 description 5
- 239000011737 fluorine Substances 0.000 description 5
- YTJSFYQNRXLOIC-UHFFFAOYSA-N octadecylsilane Chemical compound CCCCCCCCCCCCCCCCCC[SiH3] YTJSFYQNRXLOIC-UHFFFAOYSA-N 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 238000001132 ultrasonic dispersion Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- GGAUUQHSCNMCAU-ZXZARUISSA-N (2s,3r)-butane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C[C@H](C(O)=O)[C@H](C(O)=O)CC(O)=O GGAUUQHSCNMCAU-ZXZARUISSA-N 0.000 description 2
- CEGRHPCDLKAHJD-UHFFFAOYSA-N 1,1,1-propanetricarboxylic acid Chemical compound CCC(C(O)=O)(C(O)=O)C(O)=O CEGRHPCDLKAHJD-UHFFFAOYSA-N 0.000 description 2
- YFSUTJLHUFNCNZ-UHFFFAOYSA-M 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YFSUTJLHUFNCNZ-UHFFFAOYSA-M 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- UJMDYLWCYJJYMO-UHFFFAOYSA-N benzene-1,2,3-tricarboxylic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1C(O)=O UJMDYLWCYJJYMO-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229940093430 polyethylene glycol 1500 Drugs 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- SNGREZUHAYWORS-UHFFFAOYSA-M 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoate Chemical compound [O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-M 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 description 1
- 231100000693 bioaccumulation Toxicity 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRTALTYTFFNPAC-UHFFFAOYSA-N boroxin Chemical group B1OBOBO1 BRTALTYTFFNPAC-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000022261 cerebral cortex tangential migration using cell-cell interactions Effects 0.000 description 1
- 238000010516 chain-walking reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- WBLGYODTPQGHMU-UHFFFAOYSA-N chloro(dodecyl)silane Chemical compound CCCCCCCCCCCC[SiH2]Cl WBLGYODTPQGHMU-UHFFFAOYSA-N 0.000 description 1
- WMVAGLJQQGYKCW-UHFFFAOYSA-N chloro(hexadecyl)silane Chemical compound CCCCCCCCCCCCCCCC[SiH2]Cl WMVAGLJQQGYKCW-UHFFFAOYSA-N 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- CURBACXRQKTCKZ-UHFFFAOYSA-N cyclobutane-1,2,3,4-tetracarboxylic acid Chemical compound OC(=O)C1C(C(O)=O)C(C(O)=O)C1C(O)=O CURBACXRQKTCKZ-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006268 reductive amination reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/687—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing atoms other than phosphorus, silicon, sulfur, nitrogen, oxygen or carbon in the main chain
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/28—Halides of elements of Groups 8, 9, 10 or 18 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
- D06M11/65—Salts of oxyacids of nitrogen
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/203—Unsaturated carboxylic acids; Anhydrides, halides or salts thereof
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- D—TEXTILES; PAPER
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to the technical field of polyoxymethylene functional fabrics, and in particular provides a polyoxymethylene fiber finishing agent, a self-repairing super-hydrophobic fabric and a preparation method. The polyoxymethylene fiber finishing agent is a star polymer, and the structural formula is shown as formula (I). The polyoxymethylene fiber finishing agent provided by the invention can introduce an N-coordinate boron-oxygen six-ring dynamic covalent bond which is stable and highly reversible at room temperature into polyoxymethylene fiber fabrics, can compensate the problem of poor repair and circulation performance caused by low segment movement capability of high-strength polymer materials to a great extent, has triple crosslinking in the structure, has high crosslinking density, can improve the durability of the fabrics, and has higher application and popularization values in the field of preparing self-repairing super-hydrophobic fabrics.
Description
Technical Field
The invention relates to the technical field of polyoxymethylene functional fabrics, in particular to a polyoxymethylene fiber finishing agent, a self-repairing super-hydrophobic fabric and a preparation method.
Background
The Polyoxymethylene fiber (Polyoxymethylene Fiber) is a synthetic fiber prepared from Polyoxymethylene (POM) by spinning process. At present, the most common preparation method of the polyoxymethylene fibers at home and abroad is a melt spinning method, and the polyoxymethylene fibers prepared by the method have the advantages of good dimensional stability, wear resistance, solvent resistance and seawater invasion resistance, and simultaneously have excellent quick-drying and cool feeling performances.
With the improvement of the living standard of people, the demand for polyoxymethylene functional fabrics with waterproof performance is increasing. In the hydrophobic finishing process, the fluorine-based hydrophobic finishing agent has incomparable advantages in the aspects of water resistance, oil resistance, stain resistance, friction resistance, washing resistance and the like, and is a main variety applied in the current market. However, the main stream product of the fluorine-based hydrophobic finishing agent, C8-type fluorine-based hydrophobic finishing agent, generates two chemical substances of perfluorooctane sulfonate (PFOS) and ammonium Perfluorooctanoate (PFOA) during the synthesis and use, has high chemical stability, is difficult to degrade under natural conditions, can generate bioaccumulation in plants and human bodies, and threatens the health of the human bodies. In addition, in the use process of the super-hydrophobic fabric, solar irradiation, air oxidation, acid rain corrosion or physical damage can cause decomposition or consumption of hydrophobic substances, so that irreversible loss of the super-hydrophobic function occurs. The self-repairing super-hydrophobic fabric can remarkably improve the stability of the super-hydrophobic function of the fabric and prolong the service life of the fabric. Therefore, the repair of superhydrophobic fabrics has become a research hotspot in recent years. However, because the polyoxymethylene fiber has a regular molecular structure, a high cohesive energy density, a crystallinity of more than 70%, a relatively low amorphous area, no branched structure and a lack of active groups on the surface, the polyoxymethylene fiber has a low chemical reactivity, the finishing agent is not easy to finish on the polyoxymethylene fiber, and the current fluorine-based hydrophobic finishing agent has the defect of potential harm to human health and has the problem of easy yellowing of the finished fabric. Therefore, the development of the novel polyoxymethylene fiber hydrophobic finishing agent builds a stable fluorine-free superhydrophobic surface on the polyoxymethylene fiber surface, and has very important significance for expanding the market of polyoxymethylene fibers and green clean production of textile hydrophobic finishing.
Disclosure of Invention
Aiming at the defects that the existing finishing agent is not easy to finish on the polyoxymethylene fiber and the existing fluorine-based hydrophobic finishing agent has potential harm to human health and the problem that the finished fabric is easy to yellow, the invention provides the polyoxymethylene fiber finishing agent, the self-repairing super-hydrophobic fabric and the preparation method.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the polyoxymethylene fiber finishing agent has a structure of star polymer, and the structural formula is shown as formula (I):
wherein R is n-octadecyl; n is the polymerization degree of the amino-terminated polypropylene glycol, and n is 6-15.
Compared with the prior art, the polyoxymethylene fiber finishing agent provided by the invention contains an N-coordinated boron-oxygen six-ring structure, and the N-coordinated boron-oxygen six-ring dynamic covalent bond can be reversibly opened and rebuilt at room temperature and has higher reversibility; in addition, the coordination N connected on the boroxine structure can be bonded with other groups based on hydrogen bond action, so that the self-repairing function is improved; meanwhile, N connected with Si on a benzene ring in the polyoxymethylene fiber finishing agent structure can form a metal coordination bond with metal ions, and the N-coordinated boron-oxygen six-ring dynamic covalent bond is crosslinked with the metal coordination bond, so that a hydrophobic chain segment (namely octadecylsilyl) has good chain migration capability, and after abrasion, when a low-surface-energy substance on the surface of a fabric is damaged, the hydrophobic chain segment can realize room-temperature quick repair of a superhydrophobic function through the migration of the crosslinking bond.
The polyoxymethylene fiber finishing agent provided by the invention can introduce a dynamic covalent bond which is stable and highly reversible at room temperature into polyoxymethylene fabrics, can make up the problem of poor repair and circulation performance caused by low segment movement capability of high-strength polymer materials to a great extent, has triple crosslinking in the structure and high crosslinking density, can improve the durability of the fabrics, and has higher application and popularization values in the field of preparing self-repairing super-hydrophobic fabrics.
The invention also provides a preparation method of the polyoxymethylene fiber finishing agent, which comprises the following steps:
dissolving o-aldehyde phenylboronic acid, amino-terminated polypropylene glycol and octadecylsilane in an alcohol solvent, uniformly mixing, cooling to 0-4 ℃, adding an initiator, carrying out heat preservation reaction for 2-4 days, extracting, and drying to obtain the polyoxymethylene fiber finishing agent.
Firstly, performing reductive amination reaction on o-aldehyde phenylboronic acid and amino-terminated polypropylene glycol to obtain an intermediate 1; the intermediate 1 itself undergoes dehydration condensation reaction to obtain an intermediate 2; and (3) performing substitution reaction on the octadecyl chlorosilane after hydrolysis and the intermediate 2 to obtain the polyoxymethylene fiber finishing agent. The specific reaction process is schematically shown as follows:
the curved portion in the above schematic representation
Preferably, the molar ratio of the o-aldehyde phenylboronic acid, the amino-terminated polypropylene glycol and the octadecylsilane is 1.5-2.5:1.5-2.5:0.3-0.5.
Preferably, the alcohol solvent is absolute ethanol.
Further preferably, the volume molar ratio of the alcohol solvent to the o-aldehyde phenylboronic acid is 5-10:1.5-2.5, wherein the volume units are milliliters.
Preferably, the initiator is at least one of sodium borohydride, potassium borohydride or ascorbic acid.
Preferably, the molar ratio of the initiator to the o-aldehyde phenylboronic acid is 1.5-3.5:1.5-2.5.
Preferably, the above reaction conditions are advantageous for improving the yield and purity of the polyoxymethylene fiber finish of the structure represented by formula (I).
The invention also provides a finishing method of the polyoxymethylene fiber, which at least comprises the following steps:
step a, adding the polyoxymethylene fiber into the first finishing liquid, heating, soaking and drying to obtain pretreated polyoxymethylene fiber;
the first finishing liquid comprises the following components in percentage by mass: 5 to 10 percent of polycarboxylic acid, 1.0 to 1.5 percent of polyethylene glycol, 0.5 to 1.0 percent of sodium hypophosphite, 1.0 to 2.0 percent of metal ion complexing agent and the balance of water;
step b, adding the polyoxymethylene fiber finishing agent and nano silicon dioxide into an alcohol solvent, and uniformly dispersing to obtain a second finishing liquid;
and c, finishing the second finishing liquid on the pretreated polyformaldehyde fiber to obtain the self-repairing super-hydrophobic fabric.
According to the finishing method of the polyoxymethylene fiber, firstly, the polyoxymethylene fiber is finished for the first time through the first finishing liquid, a complex is formed through the metal coordination agent and the polybasic carboxylic acid, a rough structure is built on the surface of the polyoxymethylene fiber, then a low surface energy structure with a room temperature self-repairing function is built on the surface of the rough structure, the hydrophobic effect is synergistically improved, the polyoxymethylene fiber has super-hydrophobic performance, meanwhile, the metal coordination agent can also form a metal coordination bond with N connected with Si on a benzene ring in the polyoxymethylene fiber finishing agent, and the self-repairing performance is remarkably improved through cooperation of N-coordination boron-oxygen six-ring dynamic covalent bonds. Compared with the existing super-hydrophobic coating, the self-repairing speed of the super-hydrophobic coating provided by the invention is high, the super-hydrophobic coating has the advantages of long-acting stability of mechanical properties, intelligent and rapid repairing without external stimulus, excellent antibacterial property and the like, and the finishing method is simple, green and environment-friendly, low in cost and high in popularization and application value.
According to the invention, polyethylene glycol 1500 with specific molecular weight is selected and added, so that the mutual binding force between each component in the finishing liquid and the polyoxymethylene fiber can be effectively improved, the binding fastness of the finishing liquid and the polyoxymethylene fiber is improved, and the moisture-conducting effect of the polyoxymethylene fiber is also improved; in addition, the polyethylene glycol 1500 can also effectively prevent static aggregation and improve the antistatic performance of the polyoxymethylene fiber.
Preferably, in the step a, the polycarboxylic acid is at least one of butane tetracarboxylic acid, propane tricarboxylic acid, maleic acid, citric acid, succinic acid, benzene tricarboxylic acid, cyclobutane tetracarboxylic acid, or itaconic acid.
Preferably, in the step a, the temperature of the heating and soaking is 60-80 ℃ and the time is 3-6 min.
The preferable dipping temperature and time are beneficial to maintaining the dimensional stability of the polyoxymethylene fiber, and simultaneously are beneficial to combining the finishing liquid to the surface of the polyoxymethylene fiber, thereby improving the comfort of the polyoxymethylene fiber.
Preferably, the volume-to-mass ratio (bath ratio) of the polyoxymethylene fiber finishing liquid to the polyoxymethylene fiber is 10-30:1, wherein the mass unit is gram and the volume unit is milliliter.
The preferable proportion of the finishing liquid and the polyoxymethylene fiber can ensure that the finishing liquid uniformly covers the surface of the polyoxymethylene fiber and has higher bonding fastness after drying.
Preferably, in the step a, the metal ion complexing agent is one or two of ferric nitrate, ferric trichloride, bismuth nitrate or bismuth chloride.
The preferable metal ion coordination agent not only can form a metal complex with polycarboxylic acid to construct a rough structure on the surface of the polyoxymethylene fiber and improve the hydrophobic property, but also can form a metal dynamic coordination bond with N connected with Si on a benzene ring in the polyoxymethylene fiber finishing agent to improve the self-repairing function, and meanwhile, the formed metal complex also has the function of degrading pollutants and dyes and improves the self-cleaning function of the polyoxymethylene fiber.
Preferably, in the step a, the temperature of the drying is 105-110 ℃ and the time is 3-4 min.
Preferably, in the step b, the mass ratio of the polyoxymethylene fiber finishing agent to the nano silica is 1:1.0-1.5.
Preferably, in step b, the alcohol solvent is absolute ethanol.
It is further preferred that in step b, the volume to mass ratio of the nano silica to the absolute ethanol is 1:18-22, wherein the unit of volume is milliliter and the unit of mass is gram.
Preferably, the particle size of the nano silicon dioxide is 5nm-10nm.
Preferably, in step c, the second finishing liquid is finished onto the pretreated polyoxymethylene fibers by dipping, padding or spraying.
When the second finishing liquid is finished onto the pretreated polyoxymethylene fiber using a dipping method, a spraying method or a spraying method, it may be repeated a plurality of times to achieve a desired application amount. The specific application amount can be obtained by conventional adjustment.
The invention also provides a self-repairing super-hydrophobic fabric, which is obtained by adopting the finishing method of the polyoxymethylene fiber.
The self-repairing super-hydrophobic fabric provided by the invention has an excellent super-hydrophobic function, also has a room-temperature intelligent rapid self-repairing function, has a repairing time of about 15min, has a recovering period of 10 times, also has an excellent antibacterial property and a self-cleaning property, is a multifunctional self-repairing super-hydrophobic fabric, effectively expands the application of polyoxymethylene fibers, and has a wide market prospect.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The embodiment of the invention provides a polyoxymethylene fiber finishing agent, which comprises the following steps:
dissolving 1.5mmol of o-aldehyde phenylboronic acid, 2.5mmol of amino-terminated polypropylene glycol and 0.3mmol of octadecylsilane in 5mL of absolute ethyl alcohol, uniformly mixing, cooling to 4 ℃, adding 1.5mmol of potassium borohydride, carrying out heat preservation reaction for 2 days, extracting, and drying to obtain the polyoxymethylene fiber finishing agent.
The method for finishing the polyoxymethylene fiber by adopting the polyoxymethylene fiber finishing agent comprises the following steps:
step a, adding the polyoxymethylene fiber into the first finishing liquid, wherein the bath ratio is 10:1, heating to 80 ℃ for soaking for 3min, and drying at 105 ℃ for 4min to obtain pretreated polyoxymethylene fiber;
the first finishing liquid comprises the following components in percentage by mass: maleic acid 5%, polyethylene glycol 1500.0%, sodium hypophosphite 0.8%, ferric nitrate 1.0%, and water the rest;
step b, weighing the prepared polyoxymethylene fiber finishing agent and nano silicon dioxide according to the mass ratio of 1:1.2, adding the polyoxymethylene fiber finishing agent and nano silicon dioxide into absolute ethyl alcohol, and performing ultrasonic dispersion for 4 hours to obtain a second finishing liquid; wherein, 18mL of absolute ethyl alcohol is added to each 1g of nano silicon dioxide;
and c, spraying the second finishing liquid onto the pretreated polyformaldehyde fiber through a spray gun, wherein the pressure is 0.5kg, spraying for 2 times, and drying to obtain the self-repairing super-hydrophobic fabric.
Example 2
The embodiment of the invention provides a polyoxymethylene fiber finishing agent, which comprises the following steps:
dissolving 2.5mmol of o-aldehyde phenylboronic acid, 1.5mmol of amino-terminated polypropylene glycol and 0.5mmol of octadecylsilane in 8mL of absolute ethyl alcohol, uniformly mixing, cooling to 0 ℃, adding 3.5mmol of ascorbic acid, carrying out heat preservation reaction for 4 days, extracting, and drying to obtain the polyoxymethylene fiber finishing agent.
The method for finishing the polyoxymethylene fiber by adopting the polyoxymethylene fiber finishing agent comprises the following steps:
step a, adding the polyoxymethylene fiber into the first finishing liquid, wherein the bath ratio is 30:1, heating to 60 ℃ for soaking for 6min, and drying at 110 ℃ for 3min to obtain pretreated polyoxymethylene fiber;
the first finishing liquid comprises the following components in percentage by mass: 10% of propane tricarboxylic acid, 1500.5% of polyethylene glycol, 0.5% of sodium hypophosphite, 2.0% of ferric trichloride and the balance of water;
step b, weighing the prepared polyoxymethylene fiber finishing agent and nano silicon dioxide according to the mass ratio of 1:1.0, adding the polyoxymethylene fiber finishing agent and nano silicon dioxide into absolute ethyl alcohol, and performing ultrasonic dispersion for 5 hours to obtain a second finishing liquid; wherein, 22mL of absolute ethyl alcohol is added to each 1g of nano silicon dioxide;
and c, dipping the pretreated polyformaldehyde fiber into a second finishing liquid, wherein the bath ratio is 10:1, the dipping temperature is 20-30 ℃, the dipping time is 30min, the dipping is repeated for 3 times, and the pretreated polyformaldehyde fiber is dried to obtain the self-repairing super-hydrophobic fabric.
Example 3
The embodiment of the invention provides a polyoxymethylene fiber finishing agent, which comprises the following steps:
dissolving 2.0mmol of o-aldehyde phenylboronic acid, 2.0mmol of amino-terminated polypropylene glycol and 0.4mmol of octadecylsilane in 10mL of absolute ethyl alcohol, uniformly mixing, cooling to 2 ℃, adding 2.5mmol of sodium borohydride, carrying out heat preservation reaction for 3 days, extracting, and drying to obtain the polyoxymethylene fiber finishing agent.
The method for finishing the polyoxymethylene fiber by adopting the polyoxymethylene fiber finishing agent comprises the following steps:
step a, adding the polyoxymethylene fiber into the first finishing liquid, wherein the bath ratio is 20:1, heating to 70 ℃ for soaking for 5min, and drying at 105 ℃ for 3min to obtain pretreated polyoxymethylene fiber;
the first finishing liquid comprises the following components in percentage by mass: 8% of butane tetracarboxylic acid, 1500.2% of polyethylene glycol, 1.0% of sodium hypophosphite, 1.5% of bismuth nitrate and the balance of water;
step b, weighing the prepared polyoxymethylene fiber finishing agent and nano silicon dioxide according to the mass ratio of 1:1.5, adding the polyoxymethylene fiber finishing agent and nano silicon dioxide into absolute ethyl alcohol, and performing ultrasonic dispersion for 4 hours to obtain a second finishing liquid; wherein, 20mL of absolute ethyl alcohol is added to each 1g of nano silicon dioxide;
c, dipping the pretreated polyformaldehyde fiber into a second finishing liquid, and performing double dipping and double rolling, wherein the bath ratio is 10:1, the dipping temperature is 20-30 ℃, and the dipping is performedFor 30min, the pressure is 2-4kg/cm 2 Drying at 80deg.C for 3min, and drying at 110deg.C for 3min to obtain self-repairing superhydrophobic fabric.
The nanosilica used in examples 1-3 had a particle size of 5nm to 10nm and the amino-terminated polypropylene glycol used had a structural formula shown below, wherein the degree of polymerization n was 6 to 15.
The content of star polymer of formula (I) in the polyoxymethylene fiber finishes prepared in examples 1-3 above is about 70-80%.
Comparative example 1
This comparative example provides a self-healing hydrophobic fabric prepared exactly as in example 3, except that the octadecylchlorosilane in the preparation of the polyoxymethylene fiber finish was replaced with an equivalent amount of dodecyl chlorosilane.
Comparative example 2
This comparative example provides a self-healing hydrophobic fabric prepared exactly as in example 3, except that the octadecylchlorosilane in the preparation of the polyoxymethylene fiber finish was replaced with an equivalent amount of hexadecyl chlorosilane.
Comparative example 3
This comparative example provides a self-healing hydrophobic fabric prepared exactly as in example 3, except that the octadecylchlorosilane in the preparation of the polyoxymethylene fiber finish was replaced with an equivalent amount of eicosyl chlorosilane.
Fabric samples prepared in examples 1-3 and comparative examples 1-3 were tested.
Evaluation of antimicrobial Properties of textiles according to GB/T20944.3-2008 part 3: the shock method is used for measuring the antibacterial property of the prepared fabric sample, and the measuring strains are escherichia coli and staphylococcus aureus.
Self-repair test: and (3) carrying out irradiation etching on the prepared fabric sample by adopting a UV irradiation machine for 15min, changing the surface of the fabric into super-hydrophilic, placing the super-hydrophilic fabric in a climatic chamber (the temperature is 25 ℃ and the humidity is 99%) for repairing, carrying out repeated etching and repairing for 15min each time, and testing the contact angle of the repaired fabric after repeated etching and repairing for 6 times.
Self-cleaning performance test: 1.0g of the prepared fabric sample was put into 100mL of an aqueous solution of active blue 19 at a concentration of 50mg/L, and then the mixture was placed in a photochemical reactor, and subjected to a photodegradation test at room temperature under a pH of 6 under a xenon lamp illumination condition for 120min, and the dye degradation rate was calculated.
Whiteness test: and respectively placing the polyoxymethylene fiber fabrics before and after finishing under a whiteness tester for whiteness testing.
The test results are shown in Table 1.
TABLE 1
The fabric samples prepared in examples 1 to 3 were subjected to a wash fastness test using a wash fastness tester at a wash temperature of 60℃for 30 minutes each time, and after 20 total washes, the antibacterial rate, the contact angle after 6 repairs and the dye degradation rate were tested according to the above conditions. The test results are shown in Table 2.
TABLE 2
The whiteness of the polyoxymethylene fiber before finishing is 90, the hundred degrees of the polyoxymethylene fibers after finishing in examples 1-3 are 88.6-89, and basically have no change, which proves that the polyoxymethylene fiber finishing agent and the finishing method provided by the invention can effectively solve the problem of easy yellowing after finishing fabrics by the existing finishing agent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The polyoxymethylene fiber finishing agent is characterized by comprising a star-shaped polymer, wherein the structural formula of the polyoxymethylene fiber finishing agent is shown as formula (I):
(I)
Wherein R is n-octadecyl, and n is 6-15.
2. The method for preparing the polyoxymethylene fiber finishing agent of claim 1, comprising the steps of:
dissolving o-aldehyde phenylboronic acid, amino-terminated polypropylene glycol and octadecyl chlorosilane in an alcohol solvent, uniformly mixing, cooling to 0-4 ℃, adding an initiator, carrying out heat preservation reaction for 2-4 days, extracting, and drying to obtain the polyoxymethylene fiber finishing agent.
3. The method for preparing the polyoxymethylene fiber finishing agent of claim 2, wherein the molar ratio of o-aldehyde phenylboronic acid, amino-terminated polypropylene glycol and octadecylchlorosilane is 1.5-2.5:1.5-2.5:0.3-0.5.
4. The method of preparing a polyoxymethylene fiber finish according to claim 2, wherein the initiator is at least one of sodium borohydride, potassium borohydride or ascorbic acid.
5. The method of preparing a polyoxymethylene fiber finish as set forth in claim 2 or 4, wherein the molar ratio of said initiator to o-aldehyde phenylboronic acid is 1.5-3.5:1.5-2.5.
6. A method of finishing polyoxymethylene fibers, comprising at least the steps of:
step a, adding the polyoxymethylene fiber into the first finishing liquid, heating, soaking and drying to obtain pretreated polyoxymethylene fiber;
the first finishing liquid comprises the following components in percentage by mass: 5 to 10 percent of polycarboxylic acid, 1.0 to 1.5 percent of polyethylene glycol, 0.5 to 1.0 percent of sodium hypophosphite, 1.0 to 2.0 percent of metal ion complexing agent and the balance of water;
step b, adding the polyoxymethylene fiber finishing agent and nano silicon dioxide in the alcohol solvent, and uniformly dispersing to obtain a second finishing liquid;
and c, finishing the second finishing liquid on the pretreated polyformaldehyde fiber to obtain the self-repairing super-hydrophobic fabric.
7. The method for finishing polyoxymethylene fibers as set forth in claim 6, wherein in the step a, the temperature of the elevated temperature impregnation is 60 to 80 ℃ for 3 to 6 minutes; and/or
In the step a, the volume-mass ratio of the first finishing liquid to the polyoxymethylene fiber is 10-30:1, wherein the mass unit is gram and the volume unit is milliliter.
8. The method of finishing polyoxymethylene fibers as set forth in claim 6, wherein in step a, the metal ion complexing agent is one or both of ferric nitrate, ferric trichloride, bismuth nitrate or bismuth chloride.
9. The method of finishing polyoxymethylene fibers as set forth in claim 6, wherein in step b, the mass ratio of polyoxymethylene fiber finishing agent to nano silica is 1:1.0-1.5; and/or
The particle size of the nano silicon dioxide is 5nm-10nm.
10. A self-healing superhydrophobic fabric characterized by being obtained by a finishing method of polyoxymethylene fibers according to any one of claims 6-9.
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