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Silicon-based ecological functional polyurethane composite material and preparation method thereof

An ecological function and composite material technology, applied in the direction of textiles and paper making, can solve the problems of surface touch, light resistance, aging resistance, hydrophobic and anti-fouling properties of polyurethane materials, and achieve excellent surface heat resistance.

Pending Publication Date: 2022-04-12
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the surface touch, light resistance, aging resistance and hydrophobic and anti-fouling properties of polyurethane materials are far inferior to those of silicone materials.

Method used

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  • Silicon-based ecological functional polyurethane composite material and preparation method thereof
  • Silicon-based ecological functional polyurethane composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method of a silicon-based ecological functional polyurethane composite material, comprising the following steps:

[0029] (1) First, use a pipeline static mixer to mix the silicone resin material A and the silicone resin B material at a mass ratio of 1:1 to obtain a vinyl poss modified silicone resin containing reactive functional groups; Scrape poss modified silicone resin with a thickness of 15 wires on the surface of the release paper and dry it. The oven temperature is 130°C and the drying time is 8 minutes to form a surface layer of silicone resin;

[0030] (2) Scrape 25 strands of water-based PU interlayer slurry on the surface of the silicone resin surface layer that can react with it, and set a gradient temperature difference in the oven: bake at 80°C for 1 minute, bake at 100°C for 2 minutes, and bake for 3 minutes to form Water-based PU middle layer; by mass parts, the water-based PU middle layer slurry includes the following components:

[0031...

Embodiment 2

[0040] A preparation method of a silicon-based ecological functional polyurethane composite material, comprising the following steps:

[0041] (1) First, use a pipeline static mixer to mix the silicone resin material A and the silicone resin B material at a mass ratio of 1:1 to obtain a vinyl poss modified silicone resin containing reactive functional groups; Scrape the poss modified silicone resin with a thickness of 10 wires on the surface of the release paper and dry it. The oven temperature is 100°C and the drying time is 3 minutes to form a silicone resin surface layer;

[0042] (2) Scrape 30 wires of water-based PU interlayer slurry that can react with it on the surface of the silicone resin surface layer. The oven is set with a gradient temperature difference of 80°C for 30s, 130°C for 4.5 minutes, and the drying time is 5 minutes to form water-based PU. Intermediate layer; by mass parts, the water-based PU intermediate layer slurry includes the following components:

...

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Abstract

The invention discloses a silicon-based ecological functional polyurethane composite material and a preparation method thereof. The silicon-based ecological functional polyurethane composite material is sequentially composed of an organic silicon resin surface layer, a water-based PU middle layer, a solvent-free foaming bonding layer and base cloth from top to bottom. Wherein the organic silicon resin surface layer endows the surface of the material with natural anti-fouling performance and skin-friendly touch, and has high temperature resistance and ultraviolet aging resistance; the water-based PU middle layer has higher strength and toughness than those of a silicon-based material, so that the material is endowed with better wear resistance and scratch resistance; the solvent-free foaming bonding layer is small in density, good in rebound resilience and soft and plump in hand feeling after being combined with a cloth base, and the combination of the three layers endows the material with excellent comprehensive performance. According to the preparation method, the limitation of independent use of an organic silicon material and a polyurethane material is solved, the problem of interface bonding of the organic silicon and the polyurethane material is also solved, and the prepared product can be widely applied to the fields of engineering decoration, home furnishing, medical treatment, electronics, sports equipment and the like.

Description

technical field [0001] The invention belongs to the technical field of polyurethane synthetic leather, and in particular relates to a silicon-based ecological functional polyurethane composite material and a preparation method thereof. Background technique [0002] Silicon is a very common element with high reserves in nature, accounting for about 25% of the total mass of the earth's crust, second only to oxygen, which has the highest content. Silicone materials are derived from inorganic ores, which are different from other organic polymer materials with limited resources derived from petrochemical raw materials. Silicone resin has Si-O-Si as the main chain, and the Si-O bond energy is high and the bond angle is large; the molecular chain is flexible, and the heat resistance and light aging resistance are better than those with C-C bonds and C-O bonds as the main chain. other polymer materials. Therefore, silicone materials are ideal engineering outdoor materials, and are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/12D06N3/00
Inventor 张宁华笪丽红冯涛阮林伟艾威汪武
Owner ANHUI ANLI MATERIAL TECH
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