Water-based foaming pore regulator suitable for synthetic leather

A technology of adjusting agent and synthetic leather, applied in the direction of coating, polyurea/polyurethane coating, etc., can solve the problems of low safety, unfavorable cell adjustment, generation of small cells, etc., to improve the embossing effect and accelerate the solidification speed , the effect of preventing agglomeration or settling

Inactive Publication Date: 2017-06-27
南平慧薇网知识产权营运有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a single surfactant is commonly used as a cell regulator. In order to promote its blending compatibility with the synthetic leather preparation slurry, it is necessary to use a volatile organic solvent as a diluent. Small cells will be produced, which is not conducive to the regulation of cells

Method used

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  • Water-based foaming pore regulator suitable for synthetic leather
  • Water-based foaming pore regulator suitable for synthetic leather
  • Water-based foaming pore regulator suitable for synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Add 0.5 parts of N-methylolacrylamide, 0.5 parts of nano-ceramic rubber powder and 0.05 parts of aminotrimethylene phosphonic acid to 5 parts of sodium polyacrylate, and raise the temperature to 75- Keep mixing at 80°C for 15 minutes, continue to heat up to 120-125°C at a heating rate of 5°C / min, keep mixing for 15 minutes, and then cool naturally to room temperature to obtain material I;

[0025] (2) Add 20 parts of nano-titanium dioxide modified poloxamer and 5 parts of hydroxypropyl methylcellulose to 100 parts of water, stir and dissolve completely and let stand for 30 minutes, then add 3 parts of hydrolyzed polymaleic anhydride and 1 part of seaweed Na2SO4, and heated to reflux state at a heating rate of 5°C / min and kept mixed for 10 minutes, then naturally cooled to room temperature to obtain material II;

[0026] (3) Add 0.15 parts of sodium gluconate and 0.15 parts of L-calcium aspartate to material II, mix well, then microwave at a microwave frequency of 24...

Embodiment 2

[0030] (1) Add 0.5 parts of N-methylolacrylamide, 0.5 parts of nano-ceramic rubber powder and 0.1 parts of aminotrimethylene phosphonic acid to 3 parts of sodium polyacrylate, and raise the temperature to 75- Keep mixing at 80°C for 15 minutes, continue to heat up to 120-125°C at a heating rate of 5°C / min, keep mixing for 15 minutes, and then cool naturally to room temperature to obtain material I;

[0031] (2) Add 20 parts of nano-titanium dioxide-modified poloxamer and 5 parts of hydroxypropyl methylcellulose to 100 parts of water, stir and dissolve completely and let stand for 30 minutes, then add 2 parts of hydrolyzed polymaleic anhydride and 1 part of seaweed Na2SO4, and heated to reflux state at a heating rate of 5°C / min and kept mixed for 10 minutes, then naturally cooled to room temperature to obtain material II;

[0032](3) Add 0.3 part of sodium gluconate and 0.1 part of L-calcium aspartate to material II, mix well, then microwave at microwave frequency 2450MHz, outp...

Embodiment 3

[0046] The water-based cell regulator made by the same amount of embodiment 1, embodiment 2, comparative example 1, and comparative example 2 is added in the water-based polyurethane slurry (as shown in table 1), and the contrast without adding the water-based cell regulator is set Example 3, and through the same processing technology to make polyurethane synthetic leather, then the performance of the synthetic leather is measured, the results are shown in Table 2.

[0047] Table 1 Waterborne polyurethane slurry formulation

[0048]

[0049]

[0050] Table 2 Performance of processed synthetic leather

[0051]

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Abstract

The invention discloses a water-based foaming pore regulator suitable for synthetic leather and relates to the technical field of synthetic leather functional aids. The water-based foaming pore regulator suitable for the synthetic leather is prepared from the following raw materials in parts by weight: 15 to 20 parts of nano-titanium dioxide modified poloxamer, 5 to 10 parts of hydroxypropyl methyl cellulose, 3 to 5 parts of sodium polyacrylate, 2 to 3 parts of hydrolytic polymaleic anhydride, 1 to 2 parts of polyvinylpyrrolidone, 1 to 2 parts of sodium alginate, 0.5 to 1 part of N-hydroxymethyl acrylamide, 0.5 to 1 part of nano-ceramic adhesive powder, 0.1 to 0.3 part of sodium gluconate, 0.1 to 0.3 part of L-calcium aspartate, 0.05 to 0.1 part of amino trimethylene phosphonic acid, and 100 to 200 parts of water. The water-based foaming pore regulator provided by the invention can generate loose, uniform and fine micropore structures, and increase the thickness retention rate of products, so that the water-based foaming pore regulator is favorable for improving the embossed effect, enables the decorative patterns to be remarked and convex, and not to be deformed, and enhances the rebound resilience, the air permeability and the moisture permeability of a polyurethane film.

Description

[0001] Technical field: [0002] The invention relates to the technical field of functional additives for synthetic leather, in particular to a water-based cell regulator suitable for synthetic leather. [0003] Background technique: [0004] Synthetic leather is a plastic product that simulates the composition and structure of natural leather and can be used as its substitute material. Usually, the impregnated non-woven fabric is used as the mesh layer, and the microporous polyurethane layer is used as the grain layer. Its front and back are very similar to leather, and has a certain degree of air permeability, which is closer to natural leather than ordinary artificial leather. It is widely used in making shoes, boots, bags and ball games. [0005] Wet-process polyurethane synthetic leather is the best substitute for a new generation of natural leather. Its production method is to add various additives to the DMF solution of polyurethane resin to make a slurry, impregnate or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/02C08L1/28C08L5/04C08L39/06C08L33/26C08L39/00C08L29/14C08L91/00C08L57/02C08K13/02C08K3/22C08K5/098C08K5/17C08K5/103C08K3/00C09D175/04C09D7/12
CPCC08L33/02C08K2201/011C08L1/284C08L2205/035C09D7/61C09D7/63C09D7/65C09D175/04C08L5/04C08L39/06C08L33/26C08L39/00C08L29/14C08L91/00C08L57/02C08K13/02C08K2003/2241C08K5/098C08K5/175C08K5/103C08K3/00
Inventor 黄小平
Owner 南平慧薇网知识产权营运有限公司
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