CN110041487A - A kind of anion aqueous polyurethane lotion and the preparation method and application thereof - Google Patents
A kind of anion aqueous polyurethane lotion and the preparation method and application thereof Download PDFInfo
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- CN110041487A CN110041487A CN201910223228.XA CN201910223228A CN110041487A CN 110041487 A CN110041487 A CN 110041487A CN 201910223228 A CN201910223228 A CN 201910223228A CN 110041487 A CN110041487 A CN 110041487A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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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
- 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
- D06M15/568—Reaction products of isocyanates with polyethers
-
- 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
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Abstract
The present invention discloses a kind of anion aqueous polyurethane lotion and the preparation method and application thereof, and performed polymer is prepared the following steps are included: polyether polyol is reacted with isocyanates, and catalyst is added in method；Hydrophilic chain extender is added in the performed polymer and chain extender carries out chain extending reaction, carboxylic performed polymer is prepared, salt forming agent is added in the carboxylic performed polymer and carries out neutralization reaction, obtains into salt product；It is dispersed in water, and stirs at salt product by described, obtain the anion aqueous polyurethane lotion.For the present invention using anion aqueous polyurethane finishing fluid as functional finishing adjuvant, the fabric of acquisition is more environmentally friendly, will not cause harm to the human body；The fabric after arranging is set to be effectively improved fabric pretreatment simultaneously, fibre structure caused by dyeing and finishing process damages, effectively hair admittedly, hair loss/flying hair phenomenon is solved, elasticity is increased, promotes strength, improve anti-fluffing and anti-pilling performance, reflecting feel and wearability are promoted.
Description
Technical field
The present invention relates to anion aqueous polyurethane technical field more particularly to a kind of anion aqueous polyurethane lotion and
Preparation method and application.
Background technique
Aqueous polyurethane is one of the fine chemical product of national significant development.Anion aqueous polyurethane is because of its construction party
Just, many performances can compare favourably again with solvent borne polyurethane, while greatly reduce VOC (volatile organic substance) value again, be
This is very extensive in industrial applications such as coating, leather finishing agent, adhesive, textiles, the research to anion aqueous polyurethane
And the heat subject studied both at home and abroad in recent years.
During preparing anion aqueous polyurethane, select suitable raw material critically important, it should be according to the use of product
Way selects isocyanates, polyglycols, the chain extender of appropriate configuration, so that product has performance in need, for this purpose, research is aqueous poly-
Urethane structure and property correlation is particularly significant.In addition to selecting suitable raw material, also need to polyglycols that is novel, haveing excellent performance,
The study on the synthesis of hydrophilic chain extender, crosslinking agent, to adapt to the development of aqueous polyurethane.During the preparation process, NCO/OH, hydrophilic expansion
The type and dosage of chain agent, the type of crosslinking agent and dosage, reaction temperature and time, synthetic route (one-step method or multistep processes)
It is to obtain the key influence factor of high-performance water-based polyurethane, they mainly influence partial size, viscosity and the filming performance of lotion (such as
Mechanical performance: tensile strength, elongation at break, glass transition temperature etc.), it is all these will be according to the purposes and needs of product
To design.In addition, the selection of neutralizer and its dosage, the rate of the temperature and time of emulsification plus water, mulser revolving speed are all to cream
Performance after liquid and its film forming has a certain impact, and should be investigated during the preparation process.
It in traditional Pretreatment of textile, dyes, in finishing process, in order to obtain light outside preferable fabric, gloss, hand
Sense, uniform dyeing property typically need in working solution to continue fiber or fabric under high temperature, strong acid or basic conditions
Processing is for a long time.Due to various temperature conditions, the use of chemicals and equipment, and keep chemicals fully penetrated to fibrous inside
Either it is cross-linked to the loss that fiber can perhaps make fiber on fabric or diversified forms occur for fabric, especially fiber strength
Loss and fabric structure are tendering, not only reduce production efficiency and yield, and influence the washing of subsequent textile and make
With such as causing a large amount of battings to fall because damaging washing process in structure, feel and vividness decline of textile etc. is eventually affected
The quality and performance of product.Therefore, with science and technology progress and textile needs, some reduction strength loss, or
Improve clothes wearing, the method for washing process hair loss has become the emphasis of research.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of anion aqueous polyurethane lotion and
Preparation method and application, it is desirable to provide a kind of good film-forming property, flexibility good textile printing and dyeing anion aqueous polyurethane cream
Liquid.
Technical scheme is as follows:
A kind of preparation method of anion aqueous polyurethane lotion, wherein the following steps are included:
Polyether polyol is reacted with isocyanates, and catalyst is added, performed polymer is prepared；
Hydrophilic chain extender is added in the performed polymer and chain extender carries out chain extending reaction, carboxylic pre-polymerization is prepared
Acetone is added in the carboxylic performed polymer in body, and salt forming agent is added and carries out neutralization reaction, obtains into salt product；
It is dispersed in water, and stirs at salt product by described, revolving sloughs acetone, obtains the anion aqueous polyurethane cream
Liquid.
Further, the polyether polyol is selected from polyoxypropyleneglycol (PPG) and polytetrahydrofuran diol (PTMG)
One of or it is a variety of.
Further, the isocyanates is selected from isophorone diisocyanate (IPDI), toluene di-isocyanate(TDI) (TDI)
With one of hexamethylene diisocyanate (HDI) or a variety of.
Further, the catalyst is selected from one of dibutyl tin dilaurate and organo-bismuth or a variety of.
Further, the hydrophilic chain extender be selected from hydroxy alkyl acid, the hydroxy alkyl acid be dihydroxymethyl acetic acid,
One of dihydromethyl propionic acid and dyhydrobutanedioic acid are a variety of.
Further, the chain extender is selected from 1,4-butanediol, trimethylolpropane and 1, one of 6- hexylene glycol
Or it is a variety of.
Further, the salt forming agent is triethylamine.
A kind of anion aqueous polyurethane lotion, wherein by weight percentage, be prepared by component below: poly-
Ethoxylated polyhydric alcohol 15 ~ 30%, isocyanates 10 ~ 20%, catalyst 0.003 ~ 0.01%, hydrophilic chain extender 0.5 ~ 5%, chain extender
0.5 ~ 2%, acetone 10 ~ 15%, salt forming agent 3 ~ 10%, surplus is water；The sum of weight percent of above-mentioned each component is 100%；It is described
Anion aqueous polyurethane lotion is prepared using the preparation method of anion aqueous polyurethane lotion of the present invention.
A kind of anion aqueous polyurethane lotion of the present invention answering as functional finishing adjuvant in field of textiles
With.
The method of the application, wherein the following steps are included:
By weight percentage, 5 ~ 10% anion aqueous polyurethane lotion is added in pure water, stirs evenly；
Then adjusting pH value is 4.0 ~ 6.0, obtains finishing fluid；
Textile is immersed into the finishing fluid, then through padding machine rolling；
Finally textile is dried, is baked, completes to arrange.
The utility model has the advantages that the present invention is using anion aqueous polyurethane finishing fluid as functional finishing adjuvant, the fabric of acquisition
It is more environmentally friendly, it will not cause harm to the human body；The fabric after arranging is set to be effectively improved fabric pretreatment, dyeing and rear finishing duplex simultaneously
The damage of fibre structure caused by sequence, effectively hair, solution hair loss/flying hair phenomenon increase elasticity, promote strength, improve anti-fluffing admittedly
Pilling property, reflecting feel and wearability are promoted.
The present invention is used in the final finishing process of textile, and method and process is simple and environmentally-friendly.
Anion aqueous polyurethane emulsion appearance of the invention is transparent or semitransparent, because its with positive charge single group second from
Son itself can form a film, and part is combined well with negatively charged fabric, is formed with fabric and is firmly taken very much
To absorption, be arrange the natural fibers such as cotton, fiber crops, silk and wool spinning product and polyester, polyamide, polypropylene esters synthetic fibers it is excellent
Good functional finishing adjuvant.
Specific embodiment
The present invention provides a kind of anion aqueous polyurethane lotion and the preparation method and application thereof, to make mesh of the invention
, technical solution and effect it is clearer, clear, the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of preparation method of anion aqueous polyurethane lotion, wherein the following steps are included:
S10, polyether polyol is reacted with isocyanates, and catalyst is added, performed polymer is prepared；
S20, hydrophilic chain extender and chain extender progress chain extending reaction are added in the performed polymer, are prepared carboxylic
Performed polymer, acetone, which is added, in the carboxylic performed polymer reduces viscosity, and salt forming agent is added and carries out neutralization reaction, obtains into
Salt product；
S30, it is dispersed in water, and stirs at salt product by described, revolving sloughs acetone, obtains the anion aqueous polyurethane
Lotion.
Anion aqueous polyurethane emulsion appearance described in the embodiment of the present invention is transparent or semitransparent, because it has positive charge list
Component anion itself can form a film, and part is combined well with negatively charged fabric, is formed very with fabric
Firm orientation absorption is to arrange the natural fibers such as cotton, fiber crops, silk and wool spinning product and polyester, polyamide, the synthesis of polypropylene esters
The excellent functional finishing adjuvant of fiber.
Compared with prior art, the embodiment of the present invention mainly thes improvement is that, at the same using hydrophilic chain extender and
Anion aqueous polyurethane lotion is prepared and by emulsion applications in improving fabric strength in chain extender, increases elasticity, improves
Fabric is tendering caused by processing in preamble to wait fields, is effectively improved manufactured finished product and is wearing, hair loss/flying hair in washing process
The disadvantages of wadding/fabric intensity difference, do not influence fabric feeling, hence it is evident that improve the application performance of fabric.
It in step S30, is dispersed in water described at salt product, carries out chain extending reaction with water and form macromolecular, macromolecular
Hydrophobic part curling aggregation forms particle center, and hydrophilic segment is distributed in microparticle surfaces and forms hydration layer, become stable yin from
Sub- aqueous polyurethane emulsion.
In one embodiment, the polyether polyol is selected from one of PPG and PTMG or a variety of.
In one embodiment, the isocyanates is selected from one of IPDI, TDI and HDI or a variety of.
In one embodiment, the catalyst is selected from one of dibutyl tin dilaurate and organo-bismuth or more
Kind.
In one embodiment, the hydrophilic chain extender is selected from hydroxy alkyl acid, and the hydroxy alkyl acid is dihydroxy
One of methyl acetic acid, dihydromethyl propionic acid and dyhydrobutanedioic acid are a variety of.
In one embodiment, the chain extender is selected from 1,4-butanediol, trimethylolpropane and 1,6- hexylene glycol
One of or it is a variety of.
In one embodiment, the salt forming agent is triethylamine.
The embodiment of the present invention also provides a kind of anion aqueous polyurethane lotion, wherein by weight percentage, by following
Component be prepared: polyether polyol 15 ~ 30%, isocyanates 10 ~ 20%, catalyst 0.003 ~ 0.01%, hydrophilic chain extender
0.5 ~ 5%, chain extender 0.5 ~ 2%, acetone 10 ~ 15%, salt forming agent 3 ~ 10%, surplus is water；The weight percent of above-mentioned each component
The sum of be 100%；The anion aqueous polyurethane lotion is using anion aqueous polyurethane lotion described in the embodiment of the present invention
Preparation method be prepared.
The embodiment of the present invention also provides anion aqueous polyurethane lotion described in one kind in field of textiles as function
The application of finishing auxiliaries.
The method applied described in the embodiment of the present invention, wherein the following steps are included:
A, 5 ~ 10% anion aqueous polyurethane lotion by weight percentage, is added in pure water, stirs evenly；
B, then adjusting pH value is 4.0 ~ 6.0, obtains finishing fluid；
C, textile is immersed into the finishing fluid, then through padding machine rolling；Wherein liquid carrying rate is 70 ~ 85% in the step c；
D, finally textile is dried, is baked, complete to arrange.The temperature wherein baked in the step d is 110 ~ 180
DEG C, the time is 1 ~ 3min.
The embodiment of the present invention is since using anion aqueous polyurethane lotion, as functional finishing adjuvant, the fabric of acquisition is more
Environmental protection will not cause harm to the human body；The fabric after arranging is set to be effectively improved fabric pretreatment, dyeing and finishing process simultaneously
Caused by fibre structure damage, effective hair admittedly solves hair loss/flying hair phenomenon, increases elasticity, promote strength, improves anti-fluffs
Ball performance, reflecting feel and wearability are promoted.
Anion aqueous polyurethane lotion described in the embodiment of the present invention is used in the final finishing process of textile, method and process
It is simple and environmentally-friendly.
Anion aqueous polyurethane emulsion appearance of the invention is transparent or semitransparent, because its with positive charge single group second from
Son itself can form a film, and part is combined well with negatively charged fabric, is formed with fabric and is firmly taken very much
To absorption, be arrange the natural fibers such as cotton, fiber crops, silk and wool spinning product and polyester, polyamide, polypropylene esters synthetic fibers it is excellent
Good functional finishing adjuvant.
The embodiment of the present invention is further described below by several specific embodiments.
Embodiment 1
Under nitrogen protection, by weight percentage, by PPG 23%, 1,4-butanediol 0.8%, IPDI 12%, dihydroxymethyl second
In 82 DEG C of reaction 3h, 15% acetone, which is added, reduces viscosity for acid 1.2% and organo-bismuth 0.005%.55 DEG C are cooled to, three second are slowly added dropwise
Amine TEA 4% continues to stir, and deionized water is added dropwise simultaneously until system is in neutrality, and keeps system fully emulsified, stops after 30 min
Stirring；After Rotary Evaporators acetone, aqueous polyurethane emulsion is obtained.
The solid hair of its product conduct/fiber solidifying dose, application method characteristic sequentially includes the following steps:
A prepares finishing fluid:
PH adjusting agent, hand feel finishing agent, one pack system anionic polyurethane emulsion are added in a certain amount of water, matched after mixing evenly
Finishing fluid is made, wherein the pH of finishing fluid is 4, pH adjusting agent 1g/L in finishing fluid, and the concentration of hand feel finishing agent is 20g/L, single
Component anion polyurethane cream 10g/L, pH adjusting agent are acetic acid, and hand feel finishing agent is amido-modified silicone microemulsion class；
The processing of b textile product padding:
Textile to be processed is placed in the finishing fluid prepared through a step and is impregnated, is rolled at once by padding machine after impregnating wetting
Dry, the liquid carrying rate of textile is 75%；
C is dried and is baked processing:
Through dedicated drying and the textile in equipment drying b step is baked, completes reaction process, set temperature is 170 DEG C, when
Between be 2min, it is cooling, obtain finished product；
D equilibrium at room temperature stands 4 hours, the physical property of textile after test arranges.
Embodiment 2
Under nitrogen protection, by weight percentage, by PPG 30%, 1,4-butanediol 0.5%, IPDI 12.5%, dihydroxymethyl
In 80 DEG C of reaction 3h, 10% acetone, which is added, reduces viscosity for propionic acid 1% and organo-bismuth 0.004%.55 DEG C are cooled to, three second are slowly added dropwise
Amine TEA 3.5% continues to stir, and deionized water is added dropwise simultaneously until system is in neutrality, and keeps system fully emulsified, stops after 30 min
Only stir；After Rotary Evaporators acetone, aqueous polyurethane emulsion is obtained.
Its product is sequentially included the following steps: as strength elevator, application method characteristic
A prepares finishing fluid:
One pack system anionic polyurethane emulsion, pH adjusting agent are added in a certain amount of water, are configured to finishing fluid after mixing evenly,
Wherein, the pH of finishing fluid is 4, pH regulator 1g/L in finishing fluid, one pack system anion polyurethane cream 20g/L, pH adjusting agent
For acetic acid；
The processing of b textile product padding:
Textile to be processed is placed in the finishing fluid prepared through a step and is impregnated, is rolled at once by padding machine after impregnating wetting
Dry, the liquid carrying rate of textile is 75%；
C is dried and is baked processing:
Through dedicated drying and the textile in equipment drying b step is baked, completes reaction process, set temperature is 170 DEG C, when
Between be 2min, it is cooling, obtain finished product；
D equilibrium at room temperature stands 4 hours, the physical property of textile after test arranges.
Embodiment 3
Under nitrogen protection, by weight percentage, by PTMG 20%, 1,4-butanediol 1.5%, TDI10%, HDI 10%, dihydroxy
Methylpropanoic acid 2% and organo-bismuth 0.01% are cooled to 55 DEG C, triethylamine TEA 9% are slowly added dropwise, until system is in 80 DEG C of reaction 3h
Neutrality continues to stir, and deionized water is added dropwise simultaneously, keeps system fully emulsified, stops stirring after 30 min；Use rotary evaporation
After instrument acetone, aqueous polyurethane emulsion is obtained.
Its product is sequentially included the following steps: as anti-pilling finishing agent, application method characteristic
A prepares finishing fluid:
One pack system anionic polyurethane emulsion, pH adjusting agent are added in a certain amount of water, are configured to finishing fluid after mixing evenly,
Wherein, the pH of finishing fluid is 4, pH regulator 1g/L in finishing fluid, one pack system anion polyurethane cream 30g/L, pH regulator
For acetic acid；
The processing of b textile product padding:
Textile to be processed is placed in the finishing fluid prepared through a step and is impregnated, is rolled at once by padding machine after impregnating wetting
Dry, the liquid carrying rate of textile is 75%；
C is dried and is baked processing:
Through dedicated drying and the textile in equipment drying b step is baked, completes reaction process, set temperature is 170 DEG C, when
Between be 2min, it is cooling, obtain finished product；
D equilibrium at room temperature stands 4 hours, the physical property of textile after test arranges.
In conclusion a kind of anion aqueous polyurethane lotion provided by the invention and the preparation method and application thereof, described
Anion aqueous polyurethane emulsion applications are on various textile fabrics: one consolidates hair and fiber sheath curing agent as fiber, produces
The good film forming of product is effectively improved fabric clothing, the hair loss/flying hair phenomenon such as ready-made clothes dress and washing；Secondly being promoted as strength
Agent, the good bridging property of product are effectively improved fabric bursting strength, fracture elongation；Thirdly as anti-gigging-pilling agent, adjustment
Synthesis ratio and dosage improve fabric anti-fluffing anti-pilling.The arrangement that the present invention uses anion aqueous polyurethane lotion to be configured to
Liquid finish fabric, so that fabric has the solid hair and losing fibre preventing/flying hair effect of washable；Improve the strength of fabric；Simultaneously
Fabric is set to have certain anti-fluffing and anti-pilling performance.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of preparation method of anion aqueous polyurethane lotion, which comprises the following steps:
Polyether polyol is reacted with isocyanates, and catalyst is added, performed polymer is prepared；
Hydrophilic chain extender is added in the performed polymer and chain extender carries out chain extending reaction, carboxylic pre-polymerization is prepared
Acetone is added in the carboxylic performed polymer in body, and salt forming agent is added and carries out neutralization reaction, obtains into salt product；
It is dispersed in water, and stirs at salt product by described, revolving sloughs acetone, obtains the anion aqueous polyurethane cream
Liquid.
2. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the polyethers is more
First alcohol is selected from one of polyoxypropyleneglycol and polytetrahydrofuran diol or a variety of.
3. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the isocyanic acid
Ester is selected from one of isophorone diisocyanate, toluene di-isocyanate(TDI) and hexamethylene diisocyanate or a variety of.
4. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the catalyst
Selected from one of dibutyl tin dilaurate and organo-bismuth or a variety of.
5. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the hydrophily
Chain extender is selected from hydroxy alkyl acid, and the hydroxy alkyl acid is dihydroxymethyl acetic acid, dihydromethyl propionic acid and dyhydrobutanedioic acid
One of or it is a variety of.
6. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the chain growth
Agent is selected from 1,4-butanediol, trimethylolpropane and 1, one of 6- hexylene glycol or a variety of.
7. the preparation method of anion aqueous polyurethane lotion according to claim 1, which is characterized in that the salt forming agent
For triethylamine.
8. a kind of anion aqueous polyurethane lotion, which is characterized in that by weight percentage, prepared by component below and
At: polyether polyol 15 ~ 30%, isocyanates 10 ~ 20%, catalyst 0.003 ~ 0.01%, hydrophilic chain extender 0.5 ~ 5%, chain increase
Long agent 0.5 ~ 2%, acetone 10 ~ 15%, salt forming agent 3 ~ 10%, surplus are water；The sum of weight percent of above-mentioned each component is 100%；
The anion aqueous polyurethane lotion uses the preparation of the described in any item anion aqueous polyurethane lotions of claim 1-7
Method is prepared.
9. a kind of anion aqueous polyurethane lotion according to any one of claims 8 answering as functional finishing adjuvant in field of textiles
With.
10. the method applied according to claim 9, which comprises the following steps:
By weight percentage, 5 ~ 10% anion aqueous polyurethane lotion is added in pure water, stirs evenly；
Then adjusting pH value is 4.0 ~ 6.0, obtains finishing fluid；
Textile is immersed into the finishing fluid, then through padding machine rolling；
Finally textile is dried, is baked, completes to arrange.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670358A (en) * | 2019-10-10 | 2020-01-10 | 东华大学 | Padding crosslinking film-forming finishing method |
| CN110685034A (en) * | 2019-11-18 | 2020-01-14 | 浙江华峰氨纶股份有限公司 | Preparation method of phenolic yellowing resistant spandex fiber |
| CN112522952A (en) * | 2020-12-14 | 2021-03-19 | 南通金滢纺织产品检测中心有限公司 | Preparation method of anti-pilling functional nylon fabric |
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| CN110685034A (en) * | 2019-11-18 | 2020-01-14 | 浙江华峰氨纶股份有限公司 | Preparation method of phenolic yellowing resistant spandex fiber |
| CN110685034B (en) * | 2019-11-18 | 2022-06-03 | 华峰化学股份有限公司 | Preparation method of phenolic yellowing resistant spandex fiber |
| CN112522952A (en) * | 2020-12-14 | 2021-03-19 | 南通金滢纺织产品检测中心有限公司 | Preparation method of anti-pilling functional nylon fabric |
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Application publication date: 20190723 |