CN113957724A - Textile water-based organic silicon high-elastic coating adhesive and preparation method thereof - Google Patents
Textile water-based organic silicon high-elastic coating adhesive and preparation method thereof Download PDFInfo
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- CN113957724A CN113957724A CN202111458034.1A CN202111458034A CN113957724A CN 113957724 A CN113957724 A CN 113957724A CN 202111458034 A CN202111458034 A CN 202111458034A CN 113957724 A CN113957724 A CN 113957724A
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- coating adhesive
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- textile
- organic silicon
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- 239000011248 coating agent Substances 0.000 title claims abstract description 52
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000000853 adhesive Substances 0.000 title claims abstract description 40
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000004753 textile Substances 0.000 title claims abstract description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 25
- 239000010703 silicon Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000000839 emulsion Substances 0.000 claims abstract description 37
- 239000003054 catalyst Substances 0.000 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 18
- 239000012875 nonionic emulsifier Substances 0.000 claims abstract description 16
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 14
- 239000002562 thickening agent Substances 0.000 claims abstract description 14
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 13
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 12
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims abstract description 11
- 230000008719 thickening Effects 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000004593 Epoxy Substances 0.000 claims abstract description 7
- MBNZWTSAAPQLKH-UHFFFAOYSA-N [SiH3]N1CCNCC1 Chemical compound [SiH3]N1CCNCC1 MBNZWTSAAPQLKH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 238000005303 weighing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 150000002170 ethers Chemical class 0.000 claims description 14
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 14
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 229920002635 polyurethane Polymers 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- CTLDFURRFMJGON-UHFFFAOYSA-N dimethoxy-methyl-(3-piperazin-1-ylpropyl)silane Chemical group CO[Si](C)(OC)CCCN1CCNCC1 CTLDFURRFMJGON-UHFFFAOYSA-N 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims description 7
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052797 bismuth Inorganic materials 0.000 claims description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 6
- KCWYOFZQRFCIIE-UHFFFAOYSA-N ethylsilane Chemical compound CC[SiH3] KCWYOFZQRFCIIE-UHFFFAOYSA-N 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- ADJMNWKZSCQHPS-UHFFFAOYSA-L zinc;6-methylheptanoate Chemical compound [Zn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O ADJMNWKZSCQHPS-UHFFFAOYSA-L 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- ONJQDTZCDSESIW-UHFFFAOYSA-N polidocanol Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO ONJQDTZCDSESIW-UHFFFAOYSA-N 0.000 claims description 4
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 claims description 4
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 30
- 239000004744 fabric Substances 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 7
- 239000007822 coupling agent Substances 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 229940087291 tridecyl alcohol Drugs 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920002545 silicone oil Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- PZJJKWKADRNWSW-UHFFFAOYSA-N trimethoxysilicon Chemical group CO[Si](OC)OC PZJJKWKADRNWSW-UHFFFAOYSA-N 0.000 description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 229910008051 Si-OH Inorganic materials 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- 238000007171 acid catalysis Methods 0.000 description 2
- 239000012874 anionic emulsifier Substances 0.000 description 2
- 230000001153 anti-wrinkle effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IZRJPHXTEXTLHY-UHFFFAOYSA-N triethoxy(2-triethoxysilylethyl)silane Chemical compound CCO[Si](OCC)(OCC)CC[Si](OCC)(OCC)OCC IZRJPHXTEXTLHY-UHFFFAOYSA-N 0.000 description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical group CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- WHGNXNCOTZPEEK-UHFFFAOYSA-N dimethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](C)(OC)CCCOCC1CO1 WHGNXNCOTZPEEK-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- JCGDCINCKDQXDX-UHFFFAOYSA-N trimethoxy(2-trimethoxysilylethyl)silane Chemical compound CO[Si](OC)(OC)CC[Si](OC)(OC)OC JCGDCINCKDQXDX-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004383 yellowing Methods 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
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon 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
- 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
- D06M13/188—Monocarboxylic 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
- D06M13/244—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 sulfur or phosphorus
- D06M13/248—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 sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
-
- 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
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
-
- 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
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- 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
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
-
- 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
- D06M2200/50—Modified hand or grip properties; Softening compositions
Abstract
The invention discloses a textile water-based organic silicon high-elastic coating adhesive and a preparation method thereof, wherein the preparation method comprises the following steps: s1, weighing the following raw materials in parts by weight: 60-80 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 4-8 parts of dodecylbenzene sulfonic acid, 3-5 parts of a non-ionic emulsifier, 1-2 parts of an epoxy silane coupling agent, 1-2 parts of a piperazinyl silane coupling agent and 200 parts of water; s2, mixing and uniformly stirring the raw materials weighed in the S1, homogenizing under the environment of 30-40Mpa to prepare emulsion, cooling the emulsion to 5-10 ℃, standing for reacting for 24-48h, and then adjusting the pH value to 7-8 to obtain a first product; s3, adding a thickening agent into the first product, and thickening until the viscosity is 2000-3000mPa & S at 25 ℃ to obtain a second product; s4, adding 6-9 parts of cross-linking agent and 3-5 parts of catalyst into the second product, and uniformly stirring to obtain the water-based organic silicon high-elasticity coating adhesive for the textile. The water-based organic silicon high-elasticity coating adhesive for the textile disclosed by the invention can effectively improve the elasticity, crease resistance and fastness of the textile.
Description
Technical Field
The invention relates to the technical field of textile coating processing, in particular to a textile water-based organic silicon high-elasticity coating adhesive and a preparation method thereof.
Background
Most of high-elastic coating adhesives in the current market are solvent-type organic silicon coating adhesives, and the coating style with high elasticity, stiffness, smoothness and hand feeling is dominant in the market; the coating has the disadvantages that the coating contains a large amount of organic solvents such as toluene, ethyl acetate and the like, and the solvents are completely volatilized and lost after the coating is dried, so that resource waste and environmental pollution are caused, and greater potential safety hazards exist; in addition, some water-based silicone coating adhesive products are available, wherein the basic emulsion is mostly obtained by ring-opening polymerization of D4 (octamethylcyclotetrasiloxane) and a coupling agent, and the products have a large amount of free volatile cyclic bodies such as D4 and oligomers thereof, which affect the elasticity and fastness of the emulsion after crosslinking and film forming, and cannot meet the increasingly severe environmental protection requirements.
Patent document CN111116916A discloses "a method for preparing a hydroxy silicone oil emulsion by emulsion polymerization using a Si-OH terminated dimethyl siloxane oligomer," which aims to provide a method for preparing a hydroxy silicone oil emulsion by emulsion polymerization using a Si-OH terminated dimethyl siloxane oligomer as a raw material and an acid or a base as a catalyst, which can inhibit or reduce equilibration reaction, does not generate or reduce the generation of volatile epoxy silane, and reduces environmental pollution. The synthesized hydroxyl silicone oil emulsion does not use a silane coupling agent to generate a crosslinking structure, is only linear polymerization, does not have other functional crosslinking groups except hydroxyl groups, cannot generate effective network crosslinking with the crosslinking agent, has no rebound resilience after being dried to form a film, and cannot be used as a basic emulsion of a fabric elastic coating.
Patent document CN102926212A discloses "a water-based high-elasticity coating adhesive for cotton and linen fabrics and a preparation method thereof", and the invention aims to provide a modified polyorganosiloxane with high molar mass, which is mixed with polyurethane resin, a cross-linking agent and a catalyst, so that the cotton and linen fabrics after coating have high resilience and wrinkle resistance, soft and smooth hand feeling and obviously improved tearing strength. However, the silicon emulsion is synthesized by opening the ring with D4, a large amount of D4 monomer residues are left in the emulsion, and the catalyst used for crosslinking and curing the coating adhesive is dibutyltin dilaurate emulsion, which cannot meet the latest environmental protection requirements at present.
Disclosure of Invention
Therefore, the embodiment of the invention provides a textile water-based organic silicon high-elasticity coating adhesive and a preparation method thereof, which aim to solve the problems in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in a first aspect, an embodiment of the present invention provides a method for preparing a water-based silicone high-elasticity coating adhesive for textiles, which includes the following steps:
s1, weighing the following raw materials in parts by weight:
60-80 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 4-8 parts of dodecylbenzene sulfonic acid, 3-5 parts of a non-ionic emulsifier, 1-2 parts of an epoxy silane coupling agent, 1-2 parts of a piperazinyl silane coupling agent and 200 parts of water;
s2, mixing and uniformly stirring the raw materials weighed in the S1, homogenizing under the environment of 30-40Mpa to prepare emulsion, cooling the emulsion to 5-10 ℃, standing for reacting for 24-48h, and then adjusting the pH value to 7-8 to obtain a first product;
s3, adding a thickening agent into the first product, and thickening until the viscosity is 2000-3000mPa & S at 25 ℃ to obtain a second product;
and S4, adding 6-9 parts of cross-linking agent and 3-5 parts of catalyst into the second product, and uniformly stirring to obtain the water-based organic silicon high-elasticity coating adhesive for the textile.
Preferably, in S1, the viscosity of the alpha, omega-dihydroxy-terminated polydimethylsiloxane is 50-120 mPas at 25 ℃, and the hydroxyl content is less than or equal to 2.5%.
Preferably, in S1, the nonionic emulsifier is specifically one of fatty alcohol polyoxyethylene ether series, isomeric tridecanol polyoxyethylene ether series, and isomeric tridecanol polyoxyethylene ether series; the fatty alcohol polyoxyethylene ether series comprises AEO-7 and AEO-9, the isomeric tridecanol polyoxyethylene ether series comprises XL-50 and XL-70, and the isomeric tridecanol polyoxyethylene ether series comprises TO-7 and TO-8.
Preferably, in S1, the epoxysilane coupling agent is one of γ -glycidoxypropyltrimethoxysilane, γ -glycidoxypropyltriethoxysilane, and γ -glycidoxypropylmethyldimethoxysilane.
Preferably, in S1, the piperazinylsilane coupling agent is specifically γ -piperazinylpropylmethyldimethoxysilane.
Preferably, in S2, the regulator used for adjusting the pH is a 10 wt% aqueous solution of sodium carbonate.
Preferably, in S3, the thickener is an aqueous polyurethane thickener, and specifically comprises one or more of PUR-50 and RM-8W, HT-820.
Preferably, in S4, the crosslinking agent is specifically one of 1, 2-bis trimethoxysilylethane and 1, 2-bis triethoxysilylethane.
Preferably, in S4, the catalyst is one of bismuth isooctanoate and zinc isooctanoate.
In a second aspect, the embodiment of the invention provides a water-based silicone high-elasticity coating adhesive for textiles, which is obtained by the preparation method.
Compared with the prior art, the invention has at least the following beneficial effects:
(1) in the embodiment of the invention, alpha, omega-dihydroxy end-capped polydimethylsiloxane is selected as a basic emulsion, which belongs to low molecular weight linear body hydroxyl silicone oil, the embodiment of the invention leads the alpha, omega-dihydroxy end-capped polydimethylsiloxane and a coupling agent to be emulsified and polymerized under acid catalysis, and epoxy and amino modified hydroxyl end-capped polyorganosiloxane with high molar mass is generated through long-time polycondensation reaction under the condition of low temperature, compared with the traditional D4 ring-opening polymerization, the invention greatly reduces the residues of D4 and other ring body monomers and oligomers thereof, and can better meet the increasingly severe environmental protection requirement; the coupling agent is selected from an epoxy silane coupling agent and a piperazinyl silane coupling agent, can introduce epoxy groups and amino groups into emulsion macromolecules, can react with a cross-linking agent and active groups in the fabric, and improves the fastness of the coating glue on the fabric and the elasticity of the fabric; meanwhile, the amino in the selected piperazinyl silane coupling agent is a secondary amino and a tertiary amino with good stability, so that the softness, the smoothness and the tear resistance of the coated fabric can be improved, and the yellowing of the coated fabric generated by high-temperature drying is obviously reduced.
(2) In the embodiment of the invention, the dodecylbenzene sulfonic acid can be used as an anionic emulsifier while playing a role of acid catalysis, and can be used as a synergistic effect with the added nonionic emulsifier, molecules of the dodecylbenzene sulfonic acid and the anionic emulsifier are alternately adsorbed on the surface of the emulsion particle, and the nonionic emulsifier is embedded between the ionic emulsifiers, so that the distance of emulsifier ions on the surface of the emulsion particle is increased, and meanwhile, due to the electrostatic shielding effect of the nonionic emulsifier, the electrostatic tension on the surface of the emulsion particle is reduced, and the adsorption fastness is increased; the ionic emulsifier makes the emulsion stable mainly by electrostatic repulsion, and the non-ionic emulsifier mainly by hydration, and the performances of the two are complementary, so that not only the surface of the emulsion particle has great electrostatic repulsion, but also a very thick hydration layer can be formed, and the polymer emulsion has greater stability.
(3) In the embodiment of the invention, the selected cross-linking agent 1, 2-bis (trimethoxy silyl) or 1, 2-bis (triethoxy silyl) ethane belongs to a novel bis-silane coupling agent, namely two silane structures exist in the same molecular structure. Each molecule has 6 alkoxy which is double of the common silane crosslinking agent, and the alkoxy is saturated and crosslinked with hydroxyl in the synthetic emulsion and the poly-alkoxy provided by the coupling agent, so that the crosslinking density of the coating adhesive can be increased, and the film forming elasticity is improved; meanwhile, the silanol formed after hydrolysis is stronger in acidity than the silanol formed by the common silane coupling agent, so that firmer covalent bonds can be formed with hydroxyl on the surface of the fabric, and the hydrolysis is not easy, so that the elasticity, the crease resistance and the fastness of the coated fabric are greatly improved.
(4) In the embodiment of the invention, the selected catalysts zinc isooctanoate and bismuth isooctanoate belong to environment-friendly catalysts, can replace organotin catalysts, have moderate open time in an aqueous system and mild catalytic rate, and the crosslinking effect of the emulsion after baking can completely reach the catalytic level of the traditional organotin catalysts.
(5) The textile water-based organic silicon high-elasticity coating adhesive provided by the embodiment of the invention has the characteristics of high resilience, wrinkle resistance, high elasticity, stiff and smooth hand feeling, smoothness and the like of a solvent-based organic silicon coating adhesive, and meanwhile, the water replaces the traditional organic solvent, so that the cost is effectively reduced, the environmental pollution is reduced, the production safety is ensured, and the adhesive does not contain volatile ring bodies such as D4 and the like, and can meet various latest environmental protection requirements.
(6) When the aqueous organic silicon high-elasticity coating adhesive for the textile provided by the embodiment of the invention is used on a fabric, the fabric has high resilience and wrinkle resistance, smooth hand feeling, high elasticity, stiffness and smoothness, and the additional value of the fabric is greatly improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present invention are intended to distinguish between the referenced items. For a scheme with a time sequence flow, the term expression does not need to be understood as describing a specific sequence or a sequence order, and for a scheme of a device structure, the term expression does not have distinction of importance degree, position relation and the like.
Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements specifically listed, but may include other steps or elements not expressly listed that are inherent to such process, method, article, or apparatus or that are added to such process, method, article, or apparatus based on the optimization concepts of the present invention.
In the present example-
(1) The raw materials were selected as follows:
the nonionic emulsifier is one of fatty alcohol polyoxyethylene ether series (AEO-7 and AEO-9), isomeric decyl alcohol polyoxyethylene ether series (XL-50 and XL-70) and isomeric tridecyl alcohol polyoxyethylene ether series (TO-7 and TO-8);
the polyurethane thickener is one of PUR-50 (Shanghai loyalty chemical industry), RM-8W (Rohm and Haas) and HT-820 (break Thai chemical industry) in Nantong;
the cross-linking agent is 1, 2-bis trimethoxy silyl ethane or 1, 2-bis triethoxy silyl ethane.
(2) The technical indexes of the finished product are as follows:
appearance: white viscous liquid
Solid content: (30. + -. 2)%
Viscosity: 2000-3000 mPa. multidot.s (25 ℃ C.)
pH value: 6 +/-1
Ionic property: and (4) yin.
Example 1
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 60 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 4 parts of dodecylbenzene sulfonic acid, 3 parts of nonionic emulsifier (AEO-7), 1 part of gamma-piperazinylpropylmethyldimethoxysilane, 1.4 parts of gamma-glycidoxypropylmethyldimethoxysilane and 150 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled to 5 ℃, kept stand for reaction for 24 hours, and the pH value is adjusted to 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding a waterborne polyurethane thickener PUR-50 into the product obtained in the step 1 at normal temperature, and thickening to the viscosity of 2000mPa & s (25 ℃);
3. and (3) adding 6 parts of a cross-linking agent 1, 2-bis trimethoxy silicon-based ethane and 3 parts of a catalyst zinc isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
Since the addition of the cross-linking agent and the catalyst can lead the product to have certain service life, the step 3 is carried out to obtain the final product when in use, and the product is preferably ready to use.
Example 2
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 72 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 6 parts of dodecylbenzene sulfonic acid, 4 parts of non-ionic emulsifier (XL-50), 1.3 parts of gamma-piperazinylpropylmethyldimethoxysilane, 1.7 parts of gamma-glycidoxypropyltriethoxysilane and 180 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled to 10 ℃, kept stand for reaction for 48 hours, and the pH value is adjusted to 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding a waterborne polyurethane thickener PUR-50 into the product obtained in the step 1 at normal temperature, and thickening to reach the viscosity of 2500mPa & s (25 ℃);
3. and (3) adding 8 parts of a cross-linking agent 1, 2-bis trimethoxy silicon-based ethane and 4 parts of a catalyst zinc isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
Example 3
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 80 parts of alpha, omega-dihydroxy end-capped polydimethylsiloxane, 8 parts of dodecylbenzene sulfonic acid, 5 parts of non-ionic emulsifier (TO-7), 1.6 parts of gamma-piperazinylpropylmethyldimethoxysilane, 2 parts of gamma-glycidioxypropyltrimethoxysilane and 200 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled TO 5 ℃ and kept stand for reaction for 24 hours, and the pH value is adjusted TO 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding an aqueous polyurethane thickener RM-8W into the product obtained in the step 1 at normal temperature, and thickening to reach the viscosity of 2800mPa & s (25 ℃);
3. and (3) adding 9 parts of a cross-linking agent 1, 2-bis trimethoxy silicon-based ethane and 5 parts of a catalyst zinc isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
Example 4
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 60 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 4 parts of dodecylbenzene sulfonic acid, 3 parts of nonionic emulsifier (AEO-9), 1.4 parts of gamma-piperazinylpropylmethyldimethoxysilane, 1 part of gamma-glycidoxypropylmethyldimethoxysilane and 150 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled to 10 ℃, kept stand for reaction for 24-48 hours, and the pH value is adjusted to 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding an aqueous polyurethane thickener RM-8W into the product obtained in the step 1 at normal temperature, and thickening to the viscosity of 2200mPa & s (25 ℃);
3. and (3) adding 6 parts of cross-linking agent 1, 2-bis (triethoxy) silyl ethane and 3 parts of catalyst bismuth isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
Example 5
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 72 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 6 parts of dodecylbenzene sulfonic acid, 4 parts of non-ionic emulsifier (XL-70), 1.7 parts of gamma-piperazinylpropylmethyldimethoxysilane, 1.3 parts of gamma-glycidoxypropyltriethoxysilane and 180 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled to 5 ℃, kept stand for reaction for 24 hours, and the pH value is adjusted to 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding an aqueous polyurethane thickener HT-820 into the product obtained in the step 1 at normal temperature, and thickening to the viscosity of 2700mPa & s (25 ℃);
3. and (3) adding 8 parts of cross-linking agent 1, 2-bis (triethoxy) silyl ethane and 4 parts of catalyst bismuth isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
Example 6
The embodiment provides a water-based organic silicon high-elastic coating adhesive for textiles, which is prepared by the following steps:
1. 80 parts of alpha, omega-dihydroxy end-capped polydimethylsiloxane, 8 parts of dodecylbenzene sulfonic acid, 5 parts of non-ionic emulsifier (TO-8), 2 parts of gamma-piperazinylpropylmethyldimethoxysilane, 1.6 parts of gamma-glycidoxypropyltrimethoxysilane and 200 parts of deionized water are fully and uniformly stirred, the mixed solution is made into emulsion once in a high-pressure homogenizer with the working pressure of 30-40Mpa, then the emulsion is cooled TO 10 ℃, kept stand for reaction for 48 hours, and the pH value is adjusted TO 7-8 by using 10% by mass of sodium carbonate aqueous solution;
2. adding an aqueous polyurethane thickener HT-820 into the product obtained in the step 1 at normal temperature, and thickening to reach the viscosity of 3000mPa & s (25 ℃);
3. and (3) adding 8 parts of cross-linking agent 1, 2-bis (triethoxy) silyl ethane and 4 parts of catalyst bismuth isooctanoate into the product obtained in the step (2), and uniformly stirring to obtain the product.
And (3) product performance testing:
examples 1 to 6 and comparative examples 1 to 2 were coated on a pure cotton base fabric (specification: 40 × 40/133 × 72 twill) and a spunbonded base fabric (specification: 7s × 7s) which were not subjected to water repellent treatment, respectively, at a coating amount of 20 ± 2g/m2Then baking at 160-The method comprises the following steps of (1) taking minutes; the product used in comparative example 1 is solvent type high elastic coating glue FS-950B sold in a certain company; comparative example 2 used a commercially available waterborne elastomeric coating gum FS-855E from a company.
The test results are shown in the following tables 1 and 2, wherein table 1 is the test data after the pure cotton base cloth is coated, and table 2 is the test data after the ramie-bonded base cloth is coated:
TABLE 1 test data after coating of pure cotton base cloth
TABLE 2 post-coating test data for linen-bonded base fabrics
The evaluation of the high-elasticity stiff and smooth hand feeling is based on the comprehensive evaluation result of 6 persons on the hand feeling, wherein ++++ is the best and + is the worst;
evaluation criteria for rebound resilience: GB/T3819-1997 method for determining the recovery angle of crease recovery of textile fabrics.
As can be seen from the above table, the fabrics coated in examples 1-6 can completely reach the level of solvent-based high-elasticity coating adhesives in terms of rebound anti-wrinkle performance and high elasticity, stiff and smooth hand feeling, and are obviously better than the existing water-based high-elasticity coating adhesive products, which indicates that the water-based silicone high-elasticity coating adhesive for textiles provided by the embodiments of the present invention has excellent rebound anti-wrinkle performance and high elasticity, stiff and smooth hand feeling.
All the technical features of the above embodiments can be combined arbitrarily, and for simplicity of description, all possible combinations of the technical features of the above embodiments are not described; these examples, which are not explicitly described, should be considered to be within the scope of the present description.
The present invention has been described in considerable detail by the general description and the specific examples given above. It should be noted that it is obvious that several variations and modifications can be made to these specific embodiments without departing from the inventive concept, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The preparation method of the textile water-based organic silicon high-elasticity coating adhesive is characterized by comprising the following steps:
s1, weighing the following raw materials in parts by weight:
60-80 parts of alpha, omega-dihydroxy terminated polydimethylsiloxane, 4-8 parts of dodecylbenzene sulfonic acid, 3-5 parts of a non-ionic emulsifier, 1-2 parts of an epoxy silane coupling agent, 1-2 parts of a piperazinyl silane coupling agent and 200 parts of water;
s2, mixing and uniformly stirring the raw materials weighed in the S1, homogenizing under the environment of 30-40Mpa to prepare emulsion, cooling the emulsion to 5-10 ℃, standing for reacting for 24-48h, and then adjusting the pH value to 7-8 to obtain a first product;
s3, adding a thickening agent into the first product, and thickening until the viscosity is 2000-3000mPa & S at 25 ℃ to obtain a second product;
and S4, adding 6-9 parts of cross-linking agent and 3-5 parts of catalyst into the second product, and uniformly stirring to obtain the water-based organic silicon high-elasticity coating adhesive for the textile.
2. The method for preparing the aqueous organosilicon high-elastic coating adhesive for the textile according to claim 1, wherein in S1, the viscosity of the alpha, omega-dihydroxy terminated polydimethylsiloxane is 50-120 mPa.s at 25 ℃, and the hydroxyl content is less than or equal to 2.5%.
3. The method for preparing the water-based silicone high-elasticity coating adhesive for the textiles according to claim 1, wherein in S1, the non-ionic emulsifier is one of fatty alcohol-polyoxyethylene ether series, isomeric tridecanol-polyoxyethylene ether series; the fatty alcohol polyoxyethylene ether series comprises AEO-7 and AEO-9, the isomeric tridecanol polyoxyethylene ether series comprises XL-50 and XL-70, and the isomeric tridecanol polyoxyethylene ether series comprises TO-7 and TO-8.
4. The method for preparing the water-based organic silicon high elastic coating adhesive for the textile according to claim 1, wherein in S1, the epoxy silane coupling agent is one of gamma-glycidoxypropyltrimethoxysilane, gamma-glycidoxypropyltriethoxysilane, and gamma-glycidoxypropylmethyldimethoxysilane.
5. The preparation method of the textile aqueous organosilicon high-elasticity coating adhesive according to claim 1, wherein in S1, the piperazinyl silane coupling agent is gamma-piperazinyl propyl methyl dimethoxy silane.
6. The method for preparing aqueous organosilicon high elastic coating gum for textile according to claim 1, wherein the adjusting agent used for adjusting pH in S2 is 10 wt% sodium carbonate aqueous solution.
7. The method for preparing the aqueous silicone high-elasticity coating adhesive for the textile according to claim 1, wherein in S3, the thickener is an aqueous polyurethane thickener, and specifically comprises one or more of PUR-50 and RM-8W, HT-820.
8. The method for preparing the water-based organic silicon high-elasticity coating adhesive for the textiles according to claim 1, wherein in S4, the crosslinking agent is one of 1, 2-bis (trimethoxy) silyl ethane and 1, 2-bis (triethoxy) silyl ethane.
9. The method for preparing a water-based silicone high-elasticity coating adhesive for textiles according to claim 1, wherein in S4, the catalyst is one of bismuth isooctanoate and zinc isooctanoate.
10. A textile water-based organic silicon high-elastic coating adhesive is characterized by being prepared by the preparation method of the textile water-based organic silicon high-elastic coating adhesive in claim 1.
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