CN106222874A - A kind of preparation method of the naked polyurethane fabric of superlastic - Google Patents
A kind of preparation method of the naked polyurethane fabric of superlastic Download PDFInfo
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- CN106222874A CN106222874A CN201610713686.8A CN201610713686A CN106222874A CN 106222874 A CN106222874 A CN 106222874A CN 201610713686 A CN201610713686 A CN 201610713686A CN 106222874 A CN106222874 A CN 106222874A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
- D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
- D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular materials
-
- 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
- C08G18/4854—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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
Abstract
The present invention relates to weaving face fabric, be specifically related to the preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk.The application improves from fabric combines, utilize high resilience spandex silk as filling, nylon yarn is as the combination of veil, the elastic force problem of ingenious solution fabric and flexibility problem, and use 8 road Yarn feeders, veil and filling are carried out the braiding of yarn feeding simultaneously, makes bi-material be combined together to form a shell fabric closely.In fabric, table is smooth, and feel is fabulous, is through on health comfort strong, and appearance has certain hardness and texture, it is possible to support fabric well, forms multiple medicated clothing, especially and be applicable to female bra.
Description
Technical field
The present invention relates to weaving face fabric, be specifically related to the preparation method of the naked polyurethane fabric of a kind of superlastic.
Background technology
In prior art, spandex is the abbreviation of polyurethane fibre, is a kind of elastic fiber, and China's Mainland is referred to as
" spandex ", it has high flexibility, it is possible to elongates 6～7 times, but can be promptly restored to original state, its point with the disappearance of tension force
Minor structure is a picture chain, soft and the polyurethanes of extensibility, increases by linking together with hard segment
Its characteristic strong.But the intensity of spandex is relatively low, is not used alone, but marginally mix in fabric, formed with spandex as core
The covering yarn of yarn, or merge twisting with other fiber add twisted filament, although both silks can compatible spandex and other
The performance of fiber, but the most do not perform to the feature smooth, elastomeric of naked polyurethane fabric.
Number of patent application be 201310388938.0 patent of invention disclose a kind of super-elasticity random deformation seamless knitting
The weaving method of underwear, the top layer of underwear fabric uses non-elastic fiber, and nexine uses elastic fiber, but elastic fiber uses
Be covering yarn, and naked ammonia cannot be used.
Prepare to realize the success of naked polyurethane fabric, need to improve from spandex, study a kind of ammonia with high intensity
Synthetic fibre, and be aided with weaving method, makes naked polyurethane fabric have the advantage that Stability Analysis of Structures, interior table are smooth.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency of the prior art, it is provided that one makes naked polyurethane fabric Stability Analysis of Structures, interior
The preparation method of the naked polyurethane fabric of superlastic that table is smooth.
The purpose of the present invention is achieved through the following technical solutions:
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, at 75～90 ° of C
Reaction 140～160min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 3.25-4.55: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1500-2000；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9%-10%；
D, the pre-polymer solution temperature in step B is down to 15-20 DEG C, adds answering in step C under rapid stirring
Closing expanding chain pharmaceutical solution and carry out chain extending reaction, obtain the polyurethane urea solutions that solid content is 28%-32%, described pre-polymer solution is with multiple
The mass ratio closing expanding chain pharmaceutical solution is 10:3-5；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
First the application improves from fabric combination, utilizes high resilience spandex silk as filling, and nylon yarn is as face
The combination of yarn, the elastic force problem of ingenious solution fabric and flexibility problem, and use 8 road Yarn feeders, veil and filling are entered
The row braiding of yarn feeding simultaneously, makes bi-material be combined together to form a shell fabric closely.
And reforming from the preparation method of spandex, the realization for naked polyurethane fabric provides possible.The spandex profit of the present invention
With PTMG PTMG and 4 that melted molecular weight is 1500-2000,4-methyl diphenylene diisocyanate MDI
Being polymerized, preparing-NCO mass fraction is the pre-polymer solution of 7%-9%, then utilizes compounding compound expanding chain pharmaceutical solution in advance
Polymers carries out chain extending reaction, obtains may be used for the polyurethane urea solutions of spinning.
Wherein, the acting as of each component of the compound expanding chain pharmaceutical solution of the present invention: 2-dimethyl-penten diamidogen is by carbochain
5th carbon atom methyl branch amine chemical combination so that the unique energy of its derivant, such as low viscosity, high resiliency and good phase
Capacitive energy；3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol fusing points and reactivity are slightly lower, it is easy to process operation, and can give poly-
The physical and mechanical properties that urethane fiber is excellent；Propane diamine is common ethanolamine chain extender, and polarity is higher, the most vivaciously, more holds
Easily provide activity H+, it is that prepolymer crosslink density is higher, is greatly improved the intensity of spandex fibre；Diacetyl ethylenediamine is second two
Amine is acylated modified steric hindrance type chain extender, and relative reactivity is relatively low, significantly suppress prepolymer side reaction, extends gel
Time, the most enough well solve 2-dimethyl-penten diamidogen, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine react
The most unstable problem, contributes to being formed the spandex of surface smoothness；Diethylamine plays the effect of chain termination, terminates polymerization in good time
Reaction, can obtain the high-quality polymeric articles of molecular weight uniform, molecular structure stabilized.The mutually auxiliary phase of each chain extender of the present invention
Becoming, 2-dimethyl-penten diamidogen stable performance, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol activity are slightly lower, propane diamine polarity is higher,
Dissolubility is strong, and diacetyl ethylenediamine is synthesized and coordinated, and diethylamine terminates reaction, makes prepolymer high at chain extension process middle crosslink density,
Ultimately form the spandex fibre that mechanics is stable, high resiliency, appearance are smooth.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 6-8:1-3:2-4:6-8:1-5.2 methyl pentamethylenediamine can significantly improve ammonia
The elasticity of synthetic fibre, but it is not enough to the mechanical property demand supporting to use naked ammonia；3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol can carry
Rise the mechanical property of naked ammonia, but used easy coloring many, be not easy to variation production；Propane diamine is swift in response, and is easily polymerized
Reaction causes spandex fibre character uneven；Diacetyl ethylenediamine can coordinate the effect of each chain extender, but consumption the most easily presses down
Make the positive effect of other chain extender, cause cost to increase effect and reduce.Summary considers, each agent is made consumption excellent
Changing, make their respective positive effect reach to maximize, preferably ratio is 7:2:3:7:3.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
4-6 μm, consumption is 0.1 wt%-3wt% of polyurethane urea solutions.Magnesium stearate is used as lubricant, plays and fills and leads up particle surface hole
Recessed effect, uses the packing interaction between rear granule to die down, can easily slide over each other, it is simple to the processing of other function additive
Mixing, makes spandex performance uniform.And the particle diameter of magnesium stearate is excessive, being unfavorable for playing its lubrication, particle diameter is too small the easiest
Reuniting, it is considered to above-mentioned factor, the particle diameter taking magnesium stearate is 4-6 μm, makes spandex have good stretching and easy zbility.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 10-50nm, uses
Amount is 0.1 wt%-1.0wt% of polyurethane urea solutions.Nano titanium oxide can strengthen the whiteness of spandex fibre, and particle diameter is excessive
Then effect is more weak, and particle diameter is too small, is susceptible to reunite, and therefore taking particle diameter is 10-50nm.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is 0.1 wt%-of polyurethane urea solutions
0.5wt%.It is oxidized that antioxidant is prevented from spandex fibre, extends the service life of naked polyurethane fabric, the antioxygen that the present invention uses
The compounding pattern of agent 245 and antioxidant 1010 is strong with the polyurethane urea solutions compatibility of the application, and antioxidant effect is good.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.1 of polyurethane urea solutions
wt%-0.5wt%.Anti ultraviolet agent can make the resistance to yellow of spandex fibre.
Wherein, the line density of the high resilience spandex silk that described step E obtains is 30-40dtex, described high resilience spandex silk
It is 1:2-4 with the mass ratio of nylon yarn.The line density of the spandex thread of the present invention is 30-40dtex, it is possible to have stronger elasticity
Hot strength, can use as naked ammonia, and the ratio ectonexine certain with nylon yarn uses, and makes table in fabric of the present invention
Smooth, feel is fabulous, is through comfort on health strong, and appearance has certain hardness and texture, it is possible to support fabric well,
Form multiple medicated clothing, especially and be applicable to female bra.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 0.5wt%-1.5wt% of chain agent solution, described modified grafting processing method is: first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
The CNT processed, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays, specifically, receives carbon
Mitron is soaked in acryloyl chloride monomer solution and is modified, and the mass concentration of described acryloyl chloride monomer solution is 10%-30%,
Described CNT is 4-6:1 with the weight ratio of acryloyl chloride monomer solution, connecing of the CNT that described modified grafting processes
Branch rate is 5%-15%.The present invention adds CNT can be significantly enhanced the mechanical strength of spandex fibre, and carries out it
Modification, solves CNT and the consistency problem of polyurethane-urea, and the organic active group on CNT can be fine
Ground absorption or crosslinking in the polymer, make the addition of CNT will not impact the structural stability of spandex.
Beneficial effects of the present invention: 1, the application improves from fabric combination, utilizes high resilience spandex silk the end of as
Yarn, nylon yarn is as the combination of veil, the elastic force problem of ingenious solution fabric and flexibility problem, and uses 8 road Yarn feeders,
Veil and filling are carried out the braiding of yarn feeding simultaneously, makes bi-material be combined together to form a shell fabric closely.Table in fabric
Smooth, feel is fabulous, is through comfort on health strong, and appearance has certain hardness and texture, it is possible to support fabric well,
Form multiple medicated clothing, especially and be applicable to female bra；2, reform from the preparation method of spandex, for the reality of naked polyurethane fabric
Now provide possibility, the spandex fibre that prepared mechanical strength height, Stability Analysis of Structures, appearance are smooth.
Detailed description of the invention
The invention will be further described with the following Examples.
Embodiment 1
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, anti-at 87.5 ° of C
Answering 150min, obtain the prepolymer of-NCO end-blocking, wherein the mol ratio of MDI and PTMG is 3.9: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1750；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9.5%；
D, the pre-polymer solution temperature in step B being down to 17.5 DEG C, add in step C under rapid stirring is compound
Expanding chain pharmaceutical solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 30%, described pre-polymer solution and compound chain extension
The mass ratio of agent solution is 10:4；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 7:2:3:7:3.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
5 μm, consumption is the 1.5wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 30nm, consumption
0.5wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.3wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.3wt% of polyurethane urea solutions.
Wherein, the line density of the high resilience spandex silk that described step E obtains is 35dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:3.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 1.0wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 2
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 75 ° of C
160min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 3.25: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1500；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9%；
D, the pre-polymer solution temperature in step B is down to 15 DEG C, adds the compound expansion in step C under rapid stirring
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 28%%, described pre-polymer solution and compound chain extension
The mass ratio of agent solution is 10:3；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 6:1:2:6:1.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
4 μm, consumption is 0.1 wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 10, and consumption is
0.1 wt% of polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is 0.1 wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.1 of polyurethane urea solutions
wt%。
Wherein, the line density of the high resilience spandex silk that described step E obtains is 30dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:2.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 0.5wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 3
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 90 ° of C
140min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 4.55: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 2000；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 10%；
D, the pre-polymer solution temperature in step B is down to 20 DEG C, adds the compound expansion in step C under rapid stirring
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 32%, described pre-polymer solution and compound chain extender
The mass ratio of solution is 10:5；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 8:3:4:8:5.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
6 μm, consumption is the 3wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 50nm, consumption
1.0wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.5wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.5wt% of polyurethane urea solutions.
Wherein, the line density of the high resilience spandex silk that described step E obtains is 40dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:4.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 1.5wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 4
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 80 ° of C
145min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 3.6: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1800；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9.6%；
D, the pre-polymer solution temperature in step B is down to 16 DEG C, adds the compound expansion in step C under rapid stirring
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 31%, described pre-polymer solution and compound chain extender
The mass ratio of solution is 10:3.5；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 6:2:4:8:3.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
5.5 μm, consumption is the 2.0wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 20nm, consumption
0.8wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.2wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.3wt% of polyurethane urea solutions.
Wherein, the line density of the high resilience spandex silk that described step E obtains is 33dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:2.5.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 1.2wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 5
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 85 ° of C
155min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 4.2: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1600；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9.3%；
D, the pre-polymer solution temperature in step B is down to 19 DEG C, adds the compound expansion in step C under rapid stirring
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 29%, described pre-polymer solution and compound chain extender
The mass ratio of solution is 10:4.5；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 8:1:4:7:5.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
4.3 μm, consumption is the 1.4wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 35nm, consumption
0.7wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.45wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is polyurethane urea solutions
0.25wt%。
Wherein, the line density of the high resilience spandex silk that described step E obtains is 36dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:2.3.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 0.8wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 6
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 88 ° of C
158min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 3.5: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1900；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9.7%；
D, the pre-polymer solution temperature in step B being down to 19.5 DEG C, add in step C under rapid stirring is compound
Expanding chain pharmaceutical solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 31%, described pre-polymer solution and compound chain extension
The mass ratio of agent solution is 10:3.4；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 7:3:4:6:2.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
4.5 μm, consumption is the 2.6wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 12nm, consumption
0.3wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.4wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is the 0.4wt% of polyurethane urea solutions.
Wherein, the line density of the high resilience spandex silk that described step E obtains is 37dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:3.2.
Wherein, also include step C1 between described step C and step D, add in the compound expanding chain pharmaceutical solution in step C
CNT that modified grafting processes also carries out ultrasonic disperse, and the consumption of the CNT that described modified grafting processes expands for compound
The 0.9wt% of chain agent solution, described modified grafting processing method is: process first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment
CNT, then by acryloyl chloride monomer grafting carbon nanotube surface under gamma Rays.
Embodiment 7
The preparation method of the naked polyurethane fabric of a kind of superlastic: top layer uses nylon yarn, nexine uses high resilience spandex silk, uses eight yarns
Zui He eight enters on tunnel yarn braiding and forms, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels；
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, and reacts at 78 ° of C
156min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 4.5: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1650；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9%；
D, the pre-polymer solution temperature in step B is down to 17 DEG C, adds the compound expansion in step C under rapid stirring
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 30%, described pre-polymer solution and compound chain extender
The mass ratio of solution is 10:4.1；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
Wherein, 2 methyl pentamethylenediamine in described step C, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, two
The mass ratio of acetyl ethylenediamine and diethylamine is 8:1:4:6:5.
Wherein, described function additive includes that lubricant, described lubricant are magnesium stearate, and the particle diameter of described magnesium stearate is
5.5 μm, consumption is the 0.5wt% of polyurethane urea solutions.
Wherein, described function additive includes that delustering agent, described delustering agent are nano titanium oxide, and particle diameter is 15nm, consumption
0.2wt% for polyurethane urea solutions.
Wherein, described function additive includes that antioxidant and anti ultraviolet agent, described antioxidant are antioxidant 245 and antioxygen
The ratio mixing composition of agent 1010 1:1 in mass ratio, the consumption of described antioxidant is the 0.15wt% of polyurethane urea solutions.
Wherein, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is polyurethane urea solutions
0.15wt%。
Wherein, the line density of the high resilience spandex silk that described step E obtains is 35dtex, described high resilience spandex silk and Buddhist nun
The mass ratio of nylon yarn is 1:3.
The high resilience spandex silk of the embodiment of the present application 1-7 is carried out performance measurement, result such as following table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | |
| Hardness/Shao A | 63 | 66 | 62 | 61 | 58 | 65 | 72 |
| 100% stretching strength/MPa | 3.25 | 3.47 | 3.12 | 3.85 | 3.74 | 3.62 | 2.88 |
| 300% stretching strength/MPa | 6.21 | 6.11 | 6.32 | 6.54 | 6.73 | 6.49 | 5.97 |
| Hot strength/MPa | 29.87 | 31.25 | 30.11 | 28.74 | 27.98 | 29.45 | 26.56 |
| Elongation at break/% | 1107 | 1025 | 1033 | 1012 | 989 | 996 | 923 |
The high resilience spandex silk of the application has good hardness, hot strength and elongation at break, it is possible to make with naked ammonia form
With, and Stability Analysis of Structures, the elongation at break of up to 1107% illustrates that the spandex thread of the application has excellent elasticity, with nylon
Silk collocation use can be complemented each other, and can play good slimming effect for underwear fabric, and high resilience spandex silk can also
Play the effect of moisture absorbing and sweat releasing.
Last it should be noted that, above example is only in order to illustrate technical scheme, rather than the present invention is protected
Protecting the restriction of scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. the preparation method of the naked polyurethane fabric of superlastic, it is characterised in that: the top layer of the naked polyurethane fabric of described superlastic uses nylon yarn,
Nexine uses high resilience spandex silk,
Described high resilience spandex silk is prepared by the following method:
A, by raw material PTMG PTMG and 4,4-methyl diphenylene diisocyanate MDI mixes, at 75～90 ° of C
Reaction 140～160min, obtains the prepolymer of-NCO end-blocking, and wherein the mol ratio of MDI and PTMG is 3.25-4.55: 1；
B, the prepolymer that-NCO of step A blocks is dissolved in solvent N, in N-dimethyl acetylamide, obtains pre-polymer solution, its
In, the relative molecular weight of described PTMG PTMG is 1500-2000；
C, by 2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and diethylamine
It is dissolved in solvent N, in N-dimethyl acetylamide, obtains the compound expanding chain pharmaceutical solution that mass percent is 9%-10%；
D, the pre-polymer solution temperature in step B is down to 15-20 DEG C, under conditions of stirring, adds the compound expansion in step C
Chain agent solution carries out chain extending reaction, obtains the polyurethane urea solutions that solid content is 28%-32%, and described pre-polymer solution expands with compound
The mass ratio of chain agent solution is 10:3-5；
E, addition function additive stirring mixing in the polyurethane urea solutions of step D, then carry out the prepared described height of spinning and return
Play spandex thread.
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: in described step C
2 methyl pentamethylenediamine, 3,5-diamino-4-chlorobenzoic acid isobutyl ester alcohol, propane diamine, diacetyl ethylenediamine and the mass ratio of diethylamine
For 6-8:1-3:2-4:6-8:1-5.
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described function additive bag
Including lubricant, described lubricant is magnesium stearate, and the particle diameter of described magnesium stearate is 4-6 μm, and consumption is polyurethane urea solutions
0.1 wt%-3wt%。
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described function additive bag
Including delustering agent, described delustering agent is nano titanium oxide, and particle diameter is 10-50nm, and consumption is 0.1 wt%-of polyurethane urea solutions
1.0wt%。
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described function additive bag
Including antioxidant, described antioxidant is the ratio mixing composition of antioxidant 245 and antioxidant 1010 1:1 in mass ratio, described
The consumption of antioxidant is 0.1 wt%-0.5wt% of polyurethane urea solutions.
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described function additive bag
Including anti ultraviolet agent, described anti ultraviolet agent is Benzotriazole Ultraviolet Stabilizer, and consumption is 0.1 wt%-of polyurethane urea solutions
0.5wt%。
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described step E obtains
The line density of high resilience spandex silk be 30-40dtex, the mass ratio of described high resilience spandex silk and nylon yarn is 1:2-4.
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: described step C and step
Also include step C1 between rapid D, go forward side by side toward the CNT of addition modification grafting process in the compound expanding chain pharmaceutical solution in step C
Row ultrasonic disperse, the 0.5wt%-1.5wt% that consumption is compound expanding chain pharmaceutical solution of the CNT that described modified grafting processes, institute
Stating modified grafting processing method is: the CNT processed first with the unmodified grafting of concentrated sulphuric acid Passivation Treatment, then penetrates at γ
By acryloyl chloride monomer grafting carbon nanotube surface under beta radiation.
The preparation method of the naked polyurethane fabric of a kind of superlastic the most according to claim 1, it is characterised in that: use eight yarn mouths and
Eight tunnels are entered yarn braiding and are formed, and high resilience spandex silk is worn on No. 2 yarn Zui eight tunnels, and nylon yarn is all worn on No. 5 Sha Zui eight tunnels.
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| CN107254808A (en) * | 2017-07-07 | 2017-10-17 | 广东玉兰集团股份有限公司 | A kind of wallpaper skin covering of the surface and preparation method thereof |
| CN114318645A (en) * | 2022-01-04 | 2022-04-12 | 新材料与产业技术北京研究院金华分院 | Functional fabric and preparation method and application thereof |
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