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Waterborne polyurethane surface treating agent for synthetic leather and preparation method thereof

A technology of water-based polyurethane and surface treatment agent, which is applied in the fields of matte, skin feel, solvent resistance, and scratch resistance. It can solve the problems of reducing production efficiency, production cost, no skin feel, dryness, etc. Safe, matte-increasing, easy-to-make and use results

Inactive Publication Date: 2017-05-10
LIAONING FIXED STAR FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, before using graphene or graphene oxide wear-resistant agent, it needs to be wetted with propylene glycol methyl ether acetate, and then added isopropanol to disperse under ultrasonic conditions for 1-2 hours for pretreatment, which greatly reduces production efficiency and improves production efficiency. The production cost needs to change the existing synthetic leather production process and equipment, and the patent only has the characteristics of wear resistance and scratch resistance under complex process conditions; in terms of style characteristics, the invented product does not have the characteristics of skin feeling and dryness

Method used

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  • Waterborne polyurethane surface treating agent for synthetic leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Mix 45 parts of deionized water and 2 parts of silica matting powder and stir evenly;

[0047] (2) Add 55 parts of water-based polyurethane emulsion, 1.5 parts of high-slip silicone leveling agent, 2 parts of weak anionic silicone wear-resistant agent, 3 parts of non-ionic silicone hand feeling agent, and 0.2 parts of non-ionic water-based defoamer , stir evenly;

[0048] (3) Add 1 part of associative water-based polyurethane thickener, stir evenly, filter to obtain the product, solid content: 24.18%, viscosity: 1447mPa·s;

[0049] In this example, the amount of water-based polyurethane emulsion added is relatively large, and the coating feels soft and has excellent solvent resistance.

Embodiment 2

[0051] (1) Mix 47 parts of deionized water and 4 parts of silica matting powder and stir evenly;

[0052] (2) Add 45 parts of water-based polyurethane emulsion, 2 parts of high-slip silicone leveling agent, 4 parts of weak anionic silicone wear-resistant agent, 4 parts of non-ionic silicone hand feeling agent, and 0.3 parts of non-ionic water-based defoamer , stir evenly;

[0053] (3) Add 2 parts of associative water-based polyurethane thickener, stir evenly, filter to obtain the product, solid content: 26.27%, viscosity: 1629mPa·s;

[0054] In this embodiment, the amount of weak anionic silicone wear-resistant agent and silica matting powder added is relatively large, and the coating has excellent wear resistance and scratch resistance, low gloss, and delicate hand feeling.

Embodiment 3

[0056] (1) Mix 45 parts of deionized water and 3 parts of silica matting powder and stir evenly;

[0057] (2) Add 48 parts of water-based polyurethane emulsion, 1.8 parts of high-slip silicone leveling agent, 3 parts of weak anionic silicone wear-resistant agent, 5 parts of non-ionic silicone hand feeling agent, and 0.3 parts of non-ionic water-based defoamer , stir evenly;

[0058] (3) Add 2 parts of associative water-based polyurethane thickener, stir evenly, filter to obtain the product, solid content: 25.17%, viscosity: 1558mPa·s;

[0059] In this embodiment, the amount of nonionic silicone hand feeling agent added is relatively large, and the coating is relatively softer and smoother.

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Abstract

The invention relates to a waterborne polyurethane surface treating agent for synthetic leather and a preparation method thereof. The waterborne polyurethane surface treating agent for the synthetic leather is formed by compounding, by weight, 40-50 parts of deionized water, 2-4 parts of silicon dioxide matting powder, 45-55 parts of waterborne polyurethane emulsion, 1.5-2.0 parts of highly-smooth organosilicon flatting agent, 2-4 parts of weak anion organosilicone wear-resistant agent, 3-5 parts of nonionic organosilicone feeling agent, 0.2-0.3 part of non-ionic waterborne defoamer and 1-2 parts of associative waterborne polyurethane thickening agent. The waterborne polyurethane surface treating agent has functional advantages of having skin touch and being matt and resistant to scratching and solvents.

Description

technical field [0001] The invention relates to a water-based polyurethane surface treatment agent for synthetic leather, especially having the functional characteristics of skin feeling, matte, scratch resistance and solvent resistance. Background technique [0002] At present, the water-based polyurethane surface treatment agents for synthetic leather on the market are soft, delicate, and have different styles. The functional properties such as scratch resistance and solvent resistance provided by the treatment agent do not provide a treatment method, so the surface treatment agent for synthetic leather has not fully and effectively improved the quality of synthetic leather. [0003] Patent CN105316948A discloses a "water-based skin feeling treatment agent for synthetic leather and its preparation method". It describes a synthetic leather water-based surface treatment agent and its preparation method used in the back-end process of synthetic leather. A surface treatment a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/08C09D7/12C09D7/06D06N3/14C09D7/47
CPCC08L2205/02C08L2205/035C08L2312/00C09D175/06C09D175/08C09D7/43C09D7/47C09D7/61C09D7/65D06N3/146D06N2203/068D06N2209/103C08L83/12C08L83/08C08L75/04C08K3/36
Inventor 陈剑冰杨青陶忠华党瑞东陈龙冷璐
Owner LIAONING FIXED STAR FINE CHEM
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