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Solvent-free microfiber high-gloss finish polyurethane for synthetic leather and preparation method thereof

A solvent-free polyurethane and solvent-free technology, used in the field of synthetic leather, can solve problems such as stuffy heat, poor air permeability, cold and wet, etc., and achieve the effects of reducing damage, improving air permeability and improving corrosion resistance.

Pending Publication Date: 2020-05-12
福建成杰高分子材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this kind of synthetic leather is inferior to natural leather in terms of air permeability, which will make people feel stuffy and cold, and at the same time, its corrosion resistance still has certain limitations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A synthetic leather solvent-free ultra-fiber high-gloss lacquer polyurethane, the synthetic leather solvent-free ultra-fiber high-gloss varnish polyurethane includes a surface layer polyurethane layer, an intermediate polyurethane layer, a polyether type solvent-free polyurethane layer, and ultra-fiber polyurethane synthetic leather, wherein:

[0025] The surface polyurethane layer is prepared by mixing the surface polyurethane slurry composed of the following parts by weight: 80 parts of polycaprolactone polyether composite polyurethane resin, 10 parts of polyvinyl chloride powder, and 1 part of microporous functional additive , 45 parts of dimethylformamide, 2 parts of water and oil repellent, 12 parts of solvent-based colorant, 0.1 part of leveling agent, 4 parts of curing agent;

[0026] The middle polyurethane layer shall be prepared by mixing the middle layer polyurethane slurry composed of the following parts by weight: 80 parts of polyether polyester composite po...

Embodiment 2

[0038] A synthetic leather solvent-free ultra-fiber high-gloss lacquer polyurethane, the synthetic leather solvent-free ultra-fiber high-gloss varnish polyurethane includes a surface layer polyurethane layer, an intermediate polyurethane layer, a polyether type solvent-free polyurethane layer, and ultra-fiber polyurethane synthetic leather, wherein:

[0039] The surface polyurethane layer is prepared by mixing the surface polyurethane slurry composed of the following parts by weight: 80 parts of polycaprolactone polyether composite polyurethane resin, 12 parts of polyvinyl chloride powder, and 2 parts of microporous functional additives , 50 parts of dimethylformamide, 3 parts of water and oil repellent, 13 parts of solvent-based colorant, 0.12 parts of leveling agent, and 5 parts of curing agent.

[0040] The middle polyurethane layer shall be prepared by mixing the middle layer polyurethane slurry composed of the following parts by weight: 80 parts of polyether polyester comp...

Embodiment 3

[0052] A synthetic leather solvent-free ultra-fiber high-gloss lacquer polyurethane, the synthetic leather solvent-free ultra-fiber high-gloss varnish polyurethane includes a surface layer polyurethane layer, an intermediate polyurethane layer, a polyether type solvent-free polyurethane layer, and ultra-fiber polyurethane synthetic leather, wherein:

[0053] The surface polyurethane layer is prepared by mixing the surface polyurethane slurry composed of the following parts by weight: 80 parts of polycaprolactone polyether composite polyurethane resin, 14 parts of polyvinyl chloride powder, and 2 parts of microporous functional additives , 60 parts of dimethylformamide, 4 parts of water and oil repellant, 14 parts of solvent-based colorant, 0.3 part of leveling agent, 6 parts of curing agent;

[0054] The middle polyurethane layer is prepared by mixing the middle layer polyurethane slurry composed of the following parts by weight: 80 parts of polyether polyester composite polyur...

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PUM

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Abstract

The invention discloses solvent-free microfiber high-gloss finish polyurethane for synthetic leather. The solvent-free microfiber high-gloss finish polyurethane comprises a surface layer polyurethanelayer, a middle polyurethane layer, a polyether type solvent-free polyurethane layer and microfiber polyurethane synthetic leather, wherein the surface layer polyurethane layer comprises polycaprolactone-polyether composite polyurethane resin, polyvinyl chloride powder, a microporous functional auxiliary agent, dimethylformamide, a water application and oil application agent, a solvent type pigment, a leveling agent and a curing agent; the middle polyurethane layer comprises polyether-polyester composite polyurethane resin, a microporous functional additive, a water-soluble functional additive, a water application and oil application agent, dimethylformamide, a pigment, a leveling agent and a curing agent; and the polyether type solvent-free polyurethane layer comprises polytetrahydrofurandihydric alcohol, a microporous functional auxiliary agent, a water-soluble functional auxiliary agent, a chain extender, a filler, a catalyst, an isocyanate prepolymer and a curing agent. The solvent-free microfiber high-gloss finish polyurethane for the synthetic leather has good corrosion resistance and physical properties.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a synthetic leather solvent-free ultra-fiber high-gloss varnish polyurethane and a preparation method thereof. Background technique [0002] Microfiber synthetic leather is a composite material of microfiber and polyurethane. Microfibers have a fineness and structure similar to collagen fibers, so they have characteristics similar to natural leather in terms of surface morphology and mechanical properties. Microfiber leather is made of superfine fiber and polyurethane, which has the appearance and performance similar to natural leather. It is currently the closest synthetic leather to genuine leather. [0003] However, this kind of synthetic leather is inferior to natural leather in terms of air permeability, which can make people feel stuffy, cold and wet, and its corrosion resistance still has certain limitations. Contents of the invention [0004] The...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/14D06N3/0004D06N3/0061D06N3/0065D06N3/0063D06N3/0097D06N2209/143D06N2209/123D06N2211/28
Inventor 黄小平戴启彬黄明珠张嘉栋
Owner 福建成杰高分子材料有限公司