CN110144738A - Folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance - Google Patents

Folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance Download PDF

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Publication number
CN110144738A
CN110144738A CN201910394740.0A CN201910394740A CN110144738A CN 110144738 A CN110144738 A CN 110144738A CN 201910394740 A CN201910394740 A CN 201910394740A CN 110144738 A CN110144738 A CN 110144738A
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China
Prior art keywords
parts
slurry
automotive seat
epidermis
resisting
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CN201910394740.0A
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CN110144738B (en
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汪旗
戴丽
周志军
洪斌
陈永
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Zhejiang Hexin New Material Co Ltd
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Zhejiang Hexin New Material Co Ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
    • D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/121—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds
    • D—TEXTILES; PAPER
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    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/147—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the isocyanates used
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/186—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials one of the layers is on one surface of the fibrous web and the other layer is on the other surface of the fibrous web
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    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2205/00—Condition, form or state of the materials
    • D06N2205/02—Dispersion
    • D06N2205/023—Emulsion, aqueous dispersion, latex
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    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
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    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1685—Wear resistance
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    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1692—Weather resistance
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    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention discloses a kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps: A, prepares adhesive layer slurry, prepares middle layer slurry, prepare epidermis slurry, selects base fabric and release paper；B, prepared epidermis slurry is coated in release paper, forms epidermis；C, prepared middle layer slurry is coated on epidermis, forms middle layer；D, prepared adhesive layer slurry is coated on the intermediate layer, E, is then bonded, dries with woven fabric base fabric, release paper is removed in maturation, obtains automotive seat leather；F, surface printing slurry is prepared；G, prepared surface printing slurry is coated on another surface of epidermis of automotive seat leather, drying, cooling to get arriving, folding is wear-resisting and the superior automotive seat leather of ageing-resistant performance.Folding made from preparation method of the invention is wear-resisting and the superior automotive seat leather of ageing-resistant performance meets general GMW14122 standard.

Description

Folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance
Technical field
The present invention relates to polyurethane leather fields, and in particular to a kind of folding is wear-resisting and the superior automotive seats of ageing-resistant performance The preparation method of chair leather.
Background technique
Synthetic Leather (PolyurethaneSyntheticLeather) have intensity it is high, it is wear-resisting, cold-resistant, ventilative, Ageing-resistant, solvent resistant, it is soft, appearance is beautiful the advantages that, processing performance might as well, be instead of ideal imitative of natural leather Leather goods, performance are more excellent than PVC leather.Synthetic Leather is widely used in the industries such as clothes, shoemaking, luggage, furniture.Polyurethane The industrialized preparing process of synthetic leather mainly has dry and wet two major classes.
Superfine fiber chemical leather (super fiber leather) is a kind of inter-trade product, research and development and application technology be related to weaving, The numerous areas such as plastics, chemical industry.It is a kind of rtificial leather with superfine twice-laid novel high-grade time, can be used as shoes, case Each field of packet, furniture, automobile interior decoration etc., characteristic and index more superior than corium with corium.With three-dimensional net structure Not weaving fabric of superfine fiber is that the Synthetic Leather of base fabric is synthetic leather of new generation that developed recently gets up, and someone is called the Four generation artificial leathers can compare favourably with advanced natural leather, with the intrinsic sucting wet air permeability of natural leather, and in resistance toization The property learned, waterproof, anti-mildew etc. are more than natural leather.
Currently, the automotive seat leather for high-grade commercial vehicle, such as removes from office for general Buick commercial affairs vehicle seats, had previously used It is genuine leather fabric, corium exploitation is substituted with woven fabric, 1. purpose reduces cost, increases operation rate, product cost is higher；② Woven fabric product functionality is strong, and comfort is excellent, and physical property is excellent.
But used automotive seat leather there is problems at present: folding, wear-resisting and ageing-resistant performance also compare Difference, it is difficult to pass through the GMW14122 standard of General Motors.
Based on the above situation, the invention proposes a kind of folding is wear-resisting and the system of the superior automotive seat leather of ageing-resistant performance Preparation Method can effectively solve problem above.
Summary of the invention
The purpose of the present invention is to provide a kind of folding is wear-resisting and the preparation side of the superior automotive seat leather of ageing-resistant performance Method.Folding of the invention is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance made from folding it is wear-resisting and resistance to old Folding, the wear-resisting and ageing-resistant performance for changing the automotive seat leather (woven fabric product) of superior performance are excellent (superior), can be used as top grade The automotive seat of commercial vehicle is removed from office, and is such as removed from office for general Buick commercial affairs vehicle seats, instead of genuine leather fabric, can be reduced cost, be improved benefit With rate, product cost is higher；Functional, comfort is excellent, and physical property is excellent, meets the GMW14122 standard of General Motors.
In order to solve the above technical problems, present invention provide the technical scheme that
A kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness is 0.1~0.2mm, then controls baking oven temperature Degree is dried under the conditions of 60~150 DEG C, cooling, forms epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness is 0.15~0.25mm, then controls baking oven Temperature is dried under the conditions of 60~150 DEG C, cooling, forms middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness is 0.15~0.25mm, and then preliminary drying is half-dried State, oven temperature used are 60~130 DEG C, and the residence time is 8~20s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 6 hours~48 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 6~10 parts of waterborne organic silicon auxiliary agent, 0.5~3 part of water-based thickener, 0.3~1.5 part of aqueous levelling agent, 4~8 parts of water-based isocyanate crosslinking agent mixing, stir 20 afterwards ~40 minutes, it is configured to surface printing slurry；The viscosity of the surface printing slurry is 500-2000 cps/25 DEG C；
G, prepared surface printing slurry is coated in another surface of the epidermis for the automotive seat leather that step E is obtained (i.e. The surface opposite with the middle layer) on, coating weight is 60~120g/m2, then controls oven temperature in 60 DEG C~150 DEG C items It is dried under part, it is cooling to get wear-resisting to folding and the superior automotive seat of ageing-resistant performance is removed from office.
Folding of the invention is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance made from folding it is wear-resisting And the folding of ageing-resistant performance superior automotive seat leather (woven fabric product), wear-resisting and ageing-resistant performance are excellent (superior), can use The automotive seat leather for making high-grade commercial vehicle, such as removes from office for general Buick commercial affairs vehicle seats, instead of genuine leather fabric, can reduce cost, It increases operation rate, product cost is higher；Functional, comfort is excellent, and physical property is excellent, passes through general GMW14122 standard.
Preferably, in step A, the method for preparing adhesive layer slurry are as follows: by the raw material of following parts by weight: poly- carbonic acid After ester -100 parts of polyurethane resin of polyethers copolymerization, 20~40 parts of dimethylformamide, 20~40 parts of ethyl acetate mixing, stirring 20 ~40 minutes, 1~3 part of isocyanate crosslinking is added, continues stirring and is configured to adhesive layer slurry in 5-10 minutes；The bonding The viscosity of layer slurry is 8000~15000 cps/25 DEG C.
Preferably, the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by poly- the four of 60 parts by weight The hexamethylene diisocyanate trimer and 100 of hydrogen furans ether glycol, the polycarbonate glycol of 40 parts by weight, 8 parts by weight The butyl acetate of parts by weight, is added in reaction kettle, stirs evenly；Continue to stir, and be warming up to 100~110 DEG C, stirs back Stream is dehydrated 70~80min under vacuum conditions；75~85 DEG C are cooled to, the isophorone diisocyanate of 12 parts by weight is added With the stannous octoate of 3 parts by weight, then 110~120 DEG C are warming up to, keep the temperature 5~7 hours；Reaction terminating agent is added, can cool down out Material obtains the polycarbonate-polyethers copolymerization polyurethane resin.
Preferably, the isocyanate crosslinking is Desmodur L75 of German Bayer AG, DIC company, Japan It refines DN-950 and big day any one or a few in the X-200 of Chemical Co., Ltd..
Preferably, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: polycarbonate After 100 parts of type polyurethane resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base mixing, stir It mixes 20~40 minutes, is configured to middle layer slurry；The viscosity of the middle layer slurry is 3000~6000cps/25 DEG C.
Preferably, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: polycarbonate 100 parts of type polyurethane resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base, organosilicon help After 0.3~2 part of agent mixing, stirs 20~40 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry be 3000~ 6000cps/25℃。
Preferably, in step A, the organosilicon auxiliary agent is that the Q2-3238 dispersibility organosilicon of Dow corning company adds The one or both of agent and Q2-3289 organosilicon auxiliary agent is added to mix.
Preferably, in step F, the waterborne organic silicon auxiliary agent is DC-57, the American Association chemical industry of Dow corning company 358 and Stahl company HM-186 in any one or a few mixing.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
Folding of the invention is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance made from folding it is wear-resisting and resistance to The folding of the superior automotive seat leather (woven fabric product) of ageing properties, wear-resisting and ageing-resistant performance are excellent (superior), can be used as height The automotive seat leather of shelves commercial vehicle, such as removes from office for general Buick commercial affairs vehicle seats, instead of genuine leather fabric, can reduce cost, improve Utilization rate, product cost are higher；Functional, comfort is excellent, and physical property is excellent, and product index meets general GMW14122 mark It is quasi-.
The present invention using woven fabric base fabric as matrix, by adjusting adhesive layer, middle layer and epidermis resin modulus and Ratio makes that its is soft, returns so that the other components of resin and each layer obtain the combination of an optimization in microstructure Elasticity is good；The polyurethane resin of middle layer and epidermis, is all made of polycarbonate polyurethane resin, and poly- carbon polyol guarantees The solvent resistance of surface layer, weatherability, wear-resisting property；Aliphatic isocyanates are used simultaneously, ensure that anti-yellowing property；Using Special synthesis technology is made polycarbonate-polyethers copolymerization polyurethane resin as the resin of adhesive layer and is mixed into certain proportion Polyether components, improve the toughness of resin；The collocation of resin modulus ratio, ensure that the resilience of resin, resin and base fabric Perfect combination, integraty is strong, and pliability is good, passes through the test of low temperature folding.
Epidermis of the invention uses polycarbonate polyurethane resin, adds the organic silicon wear resistant auxiliary agent of proper proportion (organosilicon auxiliary agent), the organosilicon auxiliary agent are the Q2-3238 dispersibility silicone additives and Q2- of Dow corning company The one or both of 3289 organosilicon auxiliary agents mixes；Surface printing slurry forms surface printing layer, using waterborne, polycarbonate type Polyurethane resin adds the aqueous wear-resistant auxiliary agent (waterborne organic silicon auxiliary agent) of proper proportion, can significantly improve wearability；The two knot It closes, improves the slipping on surface, by learning wear-resisting test of shaking.
Dimethylformamide and ethyl acetate in the present invention are solvents, and dissolving resin is adjusted to suitable viscosity；It can root Carry out setting ratio according to the viscosity of needs；Mill base of the present invention is mill base commonly used in the art, plays a part of to adjust color.This The technical staff in field can according to need the type and dosage of determining mill base.As using black color paste or several color blendings Color series.
Specific embodiment
It is right combined with specific embodiments below in order to make those skilled in the art more fully understand technical solution of the present invention The preferred embodiments of the invention are described, but should not be understood as the limitation to this patent.
Test method described in following embodiments or test method are unless otherwise specified conventional method；The reagent And material is obtained from routine business approach, or prepare in conventional manner unless otherwise specified.
Embodiment 1:
A kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness is 0.1~0.2mm, then controls baking oven temperature Degree is dried under the conditions of 60~150 DEG C, cooling, forms epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness is 0.15~0.25mm, then controls baking oven Temperature is dried under the conditions of 60~150 DEG C, cooling, forms middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness is 0.15~0.25mm, and then preliminary drying is half-dried State, oven temperature used are 60~130 DEG C, and the residence time is 8~20s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 6 hours~48 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 6~10 parts of waterborne organic silicon auxiliary agent, 0.5~3 part of water-based thickener, 0.3~1.5 part of aqueous levelling agent, 4~8 parts of water-based isocyanate crosslinking agent mixing, stir 20 afterwards ~40 minutes, it is configured to surface printing slurry；The viscosity of the surface printing slurry is 500-2000 cps/25 DEG C；
G, prepared surface printing slurry is coated in another surface of the epidermis for the automotive seat leather that step E is obtained (i.e. The surface opposite with the middle layer) on, coating weight is 60~120g/m2, then controls oven temperature in 60 DEG C~150 DEG C items It is dried under part, it is cooling to get wear-resisting to folding and the superior automotive seat of ageing-resistant performance is removed from office.
Preferably, in step A, the method for preparing adhesive layer slurry are as follows: by the raw material of following parts by weight: poly- carbonic acid Ester-polyethers is copolymerized 100 parts of polyurethane resin (polycarbonate-polyethers (copolymerization) polyurethane resin), dimethylformamide 20~40 After part, 20~40 parts of ethyl acetate mixing, stirs 20~40 minutes, add 1~3 part of isocyanate crosslinking, continue to stir It is configured to adhesive layer slurry within 5-10 minutes；The viscosity of the adhesive layer slurry is 8000~15000 cps/25 DEG C.
Preferably, the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by poly- the four of 60 parts by weight The hexamethylene diisocyanate trimer and 100 of hydrogen furans ether glycol, the polycarbonate glycol of 40 parts by weight, 8 parts by weight The butyl acetate of parts by weight, is added in reaction kettle, stirs evenly；Continue to stir, and be warming up to 100~110 DEG C, stirs back Stream is dehydrated 70~80min under vacuum conditions；75~85 DEG C are cooled to, the isophorone diisocyanate of 12 parts by weight is added With the stannous octoate of 3 parts by weight, then 110~120 DEG C are warming up to, keep the temperature 5~7 hours；Reaction terminating agent is added, can cool down out Material obtains the polycarbonate-polyethers copolymerization polyurethane resin.
Preferably, the isocyanate crosslinking is Desmodur L75 of German Bayer AG, DIC company, Japan It refines DN-950 and big day any one or a few in the X-200 of Chemical Co., Ltd..
Preferably, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: polycarbonate After 100 parts of type polyurethane resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base mixing, stir It mixes 20~40 minutes, is configured to middle layer slurry；The viscosity of the middle layer slurry is 3000~6000cps/25 DEG C.
Preferably, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: polycarbonate 100 parts of type polyurethane resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base, organosilicon help After 0.3~2 part of agent mixing, stirs 20~40 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry be 3000~ 6000cps/25℃。
Preferably, in step A, the organosilicon auxiliary agent is that the Q2-3238 dispersibility organosilicon of Dow corning company adds The one or both of agent and Q2-3289 organosilicon auxiliary agent is added to mix.
Preferably, in step F, the waterborne organic silicon auxiliary agent is DC-57, the American Association chemical industry of Dow corning company 358 and Stahl company HM-186 in any one or a few mixing.
Embodiment 2:
A kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness 0.1mm, then controls oven temperature 60 It is dried under the conditions of~150 DEG C, it is cooling, form epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness 0.15mm, then controls oven temperature and exists It is dried under the conditions of 60~150 DEG C, it is cooling, form middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness 0.15mm, then preliminary drying leather hard, institute Oven temperature is 60~130 DEG C, and the residence time is 8s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 6 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 6 parts of waterborne organic silicon auxiliary agent, aqueous 0.5 part of thickener, 1 part of aqueous levelling agent, 8 parts of water-based isocyanate crosslinking agent mixing, rear stirring 20 minutes are configured to surface print Slurry；The viscosity of the surface printing slurry is 1000cps/25 DEG C；
G, prepared surface printing slurry is coated in another surface of the epidermis for the automotive seat leather that step E is obtained (i.e. The surface opposite with the middle layer) on, then coating weight 60g/m2 controls oven temperature under the conditions of 60 DEG C~150 DEG C Drying, it is cooling to get wear-resisting to folding and the superior automotive seat of ageing-resistant performance is removed from office.
In the present embodiment, in step A, the method for preparing adhesive layer slurry are as follows: by the raw material of following parts by weight: poly- Carbonic ester -100 parts of polyurethane resin of polyethers copolymerization, 40 parts of dimethylformamide, 20 parts of ethyl acetate, stirring 30 minutes, are added 3 parts of isocyanate crosslinking mixing, stir 5 minutes, are configured to adhesive layer slurry；The viscosity of the adhesive layer slurry is 8000cps/25℃。
In the present embodiment, the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by 60 parts by weight Polytetrahydrofuran ether glycol, the polycarbonate glycol of 40 parts by weight, 8 parts by weight hexamethylene diisocyanate trimer It with the butyl acetate of 100 parts by weight, is added in reaction kettle, stirs evenly；Continue to stir, and be warming up to 100~110 DEG C, stirs Reflux is mixed, is dehydrated 70~80min under vacuum conditions；75~85 DEG C are cooled to, two isocyanide of isophorone of 12 parts by weight is added The stannous octoate of acid esters and 3 parts by weight, then 110~120 DEG C are warming up to, keep the temperature 5~7 hours；Reaction terminating agent is added, can drop Temperature discharging obtains the polycarbonate-polyethers copolymerization polyurethane resin.
In the present embodiment, the isocyanate crosslinking is the Desmodur L75 of German Bayer AG.
In the present embodiment, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: poly- After 100 parts of carbonate polyurethane resin, 50 parts of dimethylformamide, 20 parts of ethyl acetate, 35 parts of mill base mixing, 25 points are stirred Clock is configured to middle layer slurry；The viscosity of the middle layer slurry is 3000cps/25 DEG C.
In the present embodiment, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: poly- 100 parts of carbonate polyurethane resin, 50 parts of dimethylformamide, 20 parts of ethyl acetate, 35 parts of mill base, 2 parts of organosilicon auxiliary agent After mixing, stirs 25 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry is 3000cps/25 DEG C.
In the present embodiment, in step A, the organosilicon auxiliary agent is that the Q2-3238 dispersibility of Dow corning company has Machine silicon additive.
In the present embodiment, in step F, the waterborne organic silicon auxiliary agent is the DC-57 of Dow corning company.
It in the present embodiment, is at least 2 sections, and each section when baking oven used (or drying) temperature is a certain value range Temperature increment, if temperature is 60 DEG C~150 DEG C, baking oven used is 3 sections of baking ovens, and temperature is followed successively by 60 DEG C, 90 DEG C, 120 DEG C, It can be temperature and be followed successively by 80 DEG C, 120 DEG C, 150 DEG C, those skilled in the art can according to need determination.
The folding obtained to the present embodiment is wear-resisting and the superior automotive seat leather of ageing-resistant performance is tested, as a result are as follows: Low temperature folding: (- 20 DEG C) * 3 ten thousand subsurface is not split, and realizes technological break-through；It is wear-resisting to learn vibration: (referring to JIS L0849 standard) 60,000 times Surface is not broken, and realizes technological break-through；Ageing-resistant: jungle (70 DEG C, 95%RH) 10 perimeter surfaces are not split, not dusting.
Embodiment 3:
A kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness 0.2mm, then controls oven temperature 60 It is dried under the conditions of~150 DEG C, it is cooling, form epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness 0.25mm, then controls oven temperature and exists It is dried under the conditions of 60~150 DEG C, it is cooling, form middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness 0.25mm, then preliminary drying leather hard, institute Oven temperature is 60~130 DEG C, and the residence time is 20s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 48 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 6 parts of waterborne organic silicon auxiliary agent, aqueous 1 part of thickener, 0.3 part of aqueous levelling agent, 4 parts of water-based isocyanate crosslinking agent mixing, stir 20~30 minutes afterwards, are configured to table Face printing slurry；The viscosity of the surface printing slurry is 1200cps/25 DEG C；
G, prepared surface printing slurry is coated in another surface of the epidermis for the automotive seat leather that step E is obtained (i.e. The surface opposite with the middle layer) on, then coating weight 120g/m2 controls oven temperature under the conditions of 60 DEG C~150 DEG C Drying, it is cooling to get wear-resisting to folding and the superior automotive seat of ageing-resistant performance is removed from office.
In the present embodiment, in step A, the method for preparing adhesive layer slurry are as follows: by the raw material of following parts by weight: poly- Carbonic ester -100 parts of polyurethane resin of polyethers copolymerization, 20 parts of dimethylformamide, 30 parts of ethyl acetate, stirring 40 minutes, are added 1 part of isocyanate crosslinking mixing, rear stirring 5 minutes, is configured to adhesive layer slurry；The viscosity of the adhesive layer slurry is 12000cps/25℃。
In the present embodiment, the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by 60 parts by weight Polytetrahydrofuran ether glycol, the polycarbonate glycol of 40 parts by weight, 8 parts by weight hexamethylene diisocyanate trimer It with the butyl acetate of 100 parts by weight, is added in reaction kettle, stirs evenly；Continue to stir, and be warming up to 100~110 DEG C, stirs Reflux is mixed, is dehydrated 70~80min under vacuum conditions；75~85 DEG C are cooled to, two isocyanide of isophorone of 12 parts by weight is added The stannous octoate of acid esters and 3 parts by weight, then 110~120 DEG C are warming up to, keep the temperature 5~7 hours；Reaction terminating agent is added, can drop Temperature discharging obtains the polycarbonate-polyethers copolymerization polyurethane resin.
In the present embodiment, the isocyanate crosslinking is the DN-950 of DIC company, Japan.
In the present embodiment, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: poly- After 100 parts of carbonate polyurethane resin, 30 parts of dimethylformamide, 20 parts of ethyl acetate, 15 parts of mill base mixing, 35 points are stirred Clock is configured to middle layer slurry；The viscosity of the middle layer slurry is that viscosity requires 5000cps/25 DEG C.
In the present embodiment, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: poly- 100 parts of carbonate polyurethane resin, 30 parts of dimethylformamide, 20 parts of ethyl acetate, 15 parts of mill base, 1 part of organosilicon auxiliary agent After mixing, stirs 30 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry is 5000cps/25 DEG C.
In the present embodiment, in step A, the organosilicon auxiliary agent is that the Q2-3289 organosilicon of Dow corning company helps Agent.
In the present embodiment, in step F, the waterborne organic silicon auxiliary agent is 358 auxiliary agents of American Association chemical industry.
It in the present embodiment, is at least 2 sections, and temperature when baking oven used (or drying) temperature is a certain value range Temperature of each section is incremented by, and if temperature is 60 DEG C~150 DEG C, baking oven used is 3 sections of baking ovens, and temperature is followed successively by 60 DEG C, 90 DEG C, 120 DEG C, it is also possible to temperature and is followed successively by 80 DEG C, 120 DEG C, 150 DEG C, those skilled in the art can according to need determination.
The folding obtained to the present embodiment is wear-resisting and the superior automotive seat leather of ageing-resistant performance is tested, as a result are as follows: Low temperature folding: (- 20 DEG C) * 3 ten thousand subsurface is not split, and realizes technological break-through；It is wear-resisting to learn vibration: (referring to JIS L0849 standard) 60,000 times Surface is not broken, and realizes technological break-through；Ageing-resistant: jungle (70 DEG C, 95%RH) 10 perimeter surfaces are not split, not dusting.
Embodiment 4:
A kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, including the following steps:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness 0.15mm, then controls oven temperature and exists It is dried under the conditions of 60~150 DEG C, it is cooling, form epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness 0.2mm, then controls oven temperature 60 It is dried under the conditions of~150 DEG C, it is cooling, form middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness 0.2mm, then preliminary drying leather hard, institute Oven temperature is 60~130 DEG C, and the residence time is 15s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 18 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 8 parts of waterborne organic silicon auxiliary agent, aqueous 2 parts of thickener, 0.6 part of aqueous levelling agent, 6 parts of water-based isocyanate crosslinking agent mixing, rear stirring 25 minutes are configured to surface print Slurry；The viscosity of the surface printing slurry is 2000 cps/25 DEG C；
G, prepared surface printing slurry is coated in another surface of the epidermis for the automotive seat leather that step E is obtained (i.e. The surface opposite with the middle layer) on, then coating weight 90g/m2 controls oven temperature under the conditions of 60 DEG C~150 DEG C Drying, it is cooling to get wear-resisting to folding and the superior automotive seat of ageing-resistant performance is removed from office.
In the present embodiment, in step A, the method for preparing adhesive layer slurry are as follows: by the raw material of following parts by weight: poly- After carbonic ester -100 parts of polyurethane resin of polyethers copolymerization, 20 parts of dimethylformamide, 15 parts of ethyl acetate mixing, 35 points are stirred Clock adds 2 parts of isocyanate crosslinking, continues stirring and is configured to adhesive layer slurry in 8 minutes；The viscosity of the adhesive layer slurry It is 10500 cps/25 DEG C.
In the present embodiment, the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by 60 parts by weight Polytetrahydrofuran ether glycol, the polycarbonate glycol of 40 parts by weight, 8 parts by weight hexamethylene diisocyanate trimer It with the butyl acetate of 100 parts by weight, is added in reaction kettle, stirs evenly；Continue to stir, and be warming up to 100~110 DEG C, stirs Reflux is mixed, is dehydrated 70~80min under vacuum conditions；75~85 DEG C are cooled to, two isocyanide of isophorone of 12 parts by weight is added The stannous octoate of acid esters and 3 parts by weight, then 110~120 DEG C are warming up to, keep the temperature 5~7 hours；Reaction terminating agent is added, can drop Temperature discharging obtains the polycarbonate-polyethers copolymerization polyurethane resin.
In the present embodiment, the isocyanate crosslinking is that the DN-950 of DIC company, Japan and chemical industry of refining big day have Mixture in the X-200 of limit company, the mass ratio of the two are 1:0.65.
In the present embodiment, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: poly- After 100 parts of carbonate polyurethane resin, 30 parts of dimethylformamide, 30 parts of ethyl acetate, 25 parts of mill base mixing, 30 points are stirred Clock is configured to middle layer slurry；The viscosity of the middle layer slurry is that viscosity requires 4500cps/25 DEG C.
In the present embodiment, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: poly- 100 parts of carbonate polyurethane resin, 30 parts of dimethylformamide, 30 parts of ethyl acetate, 25 parts of mill base, organosilicon auxiliary agent 1.5 After part mixing, stirs 30 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry is 4450cps/25 DEG C.
In the present embodiment, in step A, the organosilicon auxiliary agent is that the Q2-3238 dispersibility of Dow corning company has The mixture of machine silicon additive and Q2-3289 organosilicon auxiliary agent, the mass ratio of the two are 1:1.45.
In the present embodiment, in step F, the waterborne organic silicon auxiliary agent is that the Dow corning that mass ratio is 1:1.35 is public The mixture of the HM-186 of the DC-57 and Stahl company of department.
It in the present embodiment, is at least 2 sections, and temperature when baking oven used (or drying) temperature is a certain value range Temperature of each section is incremented by, and if temperature is 60 DEG C~150 DEG C, baking oven used is 3 sections of baking ovens, and temperature is followed successively by 60 DEG C, 90 DEG C, 120 DEG C, it is also possible to temperature and is followed successively by 80 DEG C, 120 DEG C, 150 DEG C, those skilled in the art can according to need determination.
The folding obtained to the present embodiment is wear-resisting and the superior automotive seat leather of ageing-resistant performance is tested, as a result are as follows: Low temperature folding: (- 20 DEG C) * 3 ten thousand subsurface is not split, and realizes technological break-through；It is wear-resisting to learn vibration: (referring to JIS L0849 standard) 60,000 times Surface is not broken, and realizes technological break-through；Ageing-resistant: jungle (70 DEG C, 95%RH) 10 perimeter surfaces are not split, not dusting.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change It also should be regarded as protection scope of the present invention into retouching.

Claims (8)

1. a kind of folding is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, which is characterized in that including following Step:
A, adhesive layer slurry is prepared, middle layer slurry is prepared, prepares epidermis slurry, selects base fabric and release paper；
B, prepared epidermis slurry is coated in release paper, coating thickness is 0.1~0.2mm, then controls baking oven temperature Degree is dried under the conditions of 60~150 DEG C, cooling, forms epidermis；
C, prepared middle layer slurry is coated on epidermis, coating thickness is 0.15~0.25mm, then controls baking oven Temperature is dried under the conditions of 60~150 DEG C, cooling, forms middle layer；
D, on the intermediate layer by the coating of prepared adhesive layer slurry, coating thickness is 0.15~0.25mm, and then preliminary drying is half-dried State, oven temperature used are 60~130 DEG C, and the residence time is 8~20s in baking oven；
E, it is then bonded, dries with woven fabric base fabric, oven temperature used is 60~150 DEG C, then carries out maturation, maturation room temperature It is 50 DEG C~100 DEG C, the maturation time is 6 hours~48 hours, finally removes release paper, obtains automotive seat leather；
F, by the raw material of following parts by weight: 100 parts of waterborne, polycarbonate type polyurethane resin, 6~10 parts of waterborne organic silicon auxiliary agent, 0.5~3 part of water-based thickener, 0.3~1.5 part of aqueous levelling agent, 4~8 parts of water-based isocyanate crosslinking agent mixing, stir 20 afterwards ~30 minutes, it is configured to surface printing slurry；The viscosity of the surface printing slurry is 500-2000 cps/25 DEG C；
G, prepared surface printing slurry is coated on the surface of epidermis for the automotive seat leather that step E is obtained, coating Amount is 60~120g/m2, then controls oven temperature and dries under the conditions of 60 DEG C~150 DEG C, it is cooling to get to folding it is wear-resisting and The superior automotive seat leather of ageing-resistant performance.
2. folding according to claim 1 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is, in step A, the method for preparing adhesive layer slurry are as follows: the raw material of following parts by weight: polycarbonate-polyethers is total After 100 parts of poly- polyurethane resin, 20~40 parts of dimethylformamide, 20~40 parts of ethyl acetate mixing, stir 20~40 minutes, 1~3 part of isocyanate crosslinking is added, continues stirring and is configured to adhesive layer slurry in 5-10 minutes；The adhesive layer slurry Viscosity is 8000~15000 cps/25 DEG C.
3. folding according to claim 2 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is that the polycarbonate-polyethers copolymerization polyurethane resin comprises the following steps: by the polytetrahydrofuran ether of 60 parts by weight Glycol, the polycarbonate glycol of 40 parts by weight, the hexamethylene diisocyanate trimer of 8 parts by weight and 100 parts by weight Butyl acetate is added in reaction kettle, is stirred evenly；Continue to stir, and be warming up to 100~110 DEG C, is stirred at reflux, in vacuum Under the conditions of be dehydrated 70~80min；75~85 DEG C are cooled to, the isophorone diisocyanate and 3 parts by weight of 12 parts by weight is added Stannous octoate, then be warming up to 110~120 DEG C, keep the temperature 5~7 hours；Be added reaction terminating agent, can cooling discharge, obtain institute State polycarbonate-polyethers copolymerization polyurethane resin.
4. folding according to claim 2 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is, the isocyanate crosslinking is Desmodur L75 of German Bayer AG, the DN-950 of DIC company, Japan and greatly Day refine Chemical Co., Ltd. X-200 in any one or a few.
5. folding according to claim 1 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is, in step A, the method for preparing middle layer slurry are as follows: by the raw material of following parts by weight: polycarbonate polyurethane After 100 parts of resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base mixing, 20-40 is stirred Minute, it is configured to middle layer slurry；The viscosity of the middle layer slurry is 3000~6000cps/25 DEG C.
6. folding according to claim 1 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is, in step A, the method for preparing epidermis slurry are as follows: by the raw material of following parts by weight: polycarbonate polyurethane 100 parts of resin, 20~50 parts of dimethylformamide, 20~50 parts of ethyl acetate, 10~35 parts of mill base, organosilicon auxiliary agent 0.3~2 After part mixing, stirs 20-40 minutes, be configured to epidermis slurry；The viscosity of the epidermis slurry is 3000~6000cps/ 25℃。
7. folding according to claim 6 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is that the organosilicon auxiliary agent is organic for the Q2-3238 dispersibility silicone additives and Q2-3289 of Dow corning company The one or both of silicon additive mixes.
8. folding according to claim 1 is wear-resisting and the preparation method of the superior automotive seat leather of ageing-resistant performance, special Sign is, in step F, the waterborne organic silicon auxiliary agent is 358 and of the DC-57 of Dow corning company, American Association chemical industry Any one or a few mixing in the HM-186 of Stahl company.
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CN111535048A (en) * 2020-06-10 2020-08-14 浙江康成新材料科技有限公司 Weather-resistant PU outdoor leather and preparation process thereof
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CN114921964A (en) * 2022-05-16 2022-08-19 浙江禾欣新材料有限公司 Antibacterial and anti-mildew polyurethane synthetic leather special for automobile seat leather and preparation method thereof
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CN115559123B (en) * 2022-10-25 2024-05-28 广东西顿新材料科技有限公司 Water-based anti-fouling synthetic leather finishing agent for vehicle and preparation method thereof

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