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Solvent-free white paste for polyurethane shoe sole and preparation process of white paste

A solvent-free polyurethane and preparation technology, which is applied in the field of pigment paste preparation, can solve the problems of increasing VOC emissions and air pollution, and achieve the effects of reducing VOC emissions, reducing overall energy consumption, and improving the degree of coloring

Inactive Publication Date: 2019-06-28
ZHEJIANG NAMEI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The traditional solvent-based white pulp is made by grinding PU resin, solvent, dispersant, and titanium dioxide, such as the water-based special white pulp disclosed in CN201710848555.5, which has better tinting strength and better gloss, but this scheme It is prepared by emulsifying and grinding the resin liquid and other additives. The resins are polymerized by solvents using toluene, xylene, acetone, butanone (MEK), ethyl acetate and dimethylformamide (DMF) as the main solvents. Made by law, it increases the emission of VOC (volatile organic compounds) and pollutes the air

Method used

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  • Solvent-free white paste for polyurethane shoe sole and preparation process of white paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A solvent-free polyurethane shoe sole white paste, comprising the following components (by weight):

[0039] 50 parts of rutile titanium dioxide; 10 parts of light calcium carbonate; 5 parts of propylene glycol; 4 parts of dispersant WY001; 5 parts of wetting agent NM-W101; 2 parts of anti-settling agent 820A; 0.1 part of preservative B20; 0.1 part of water.

[0040] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0041]1. Mix water, propylene glycol, dispersant WY001, wetting agent NM-W101, and preservative B20 in proportion, stir and disperse, stir for 15 minutes, and the speed is 800 rpm;

[0042] 2. Add rutile titanium dioxide, light calcium carbonate, and anti-sedimentation agent 820A in proportion, and add while stirring. The stirring time is 2 hours, and the stirring speed is 1500 rpm;

[0043] 3. After the stirring is finished, use a sand mill for sand grinding, and the number of grinding times is 2 times;

[0...

Embodiment 2

[0049] A solvent-free polyurethane shoe sole white paste, comprising the following components (by weight):

[0050] 52 parts of rutile titanium dioxide; 15 parts of light calcium carbonate; 8 parts of ethylene glycol; 5 parts of dispersant WY001; 6 parts of wetting agent NM-W101; 4 parts of anti-settling agent 820A; 0.2 parts of preservative B20; 1.5 parts of water .

[0051] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0052] 1. Mix water, ethylene glycol, dispersant WY001, wetting agent NM-W101, preservative B20 in proportion, stir and disperse, stir

[0053] Stir for 20 minutes at a speed of 750 rpm;

[0054] 2. Add rutile titanium dioxide, light calcium carbonate, and anti-sedimentation agent 820A in proportion, and add while stirring. The stirring time is 2.5 hours, and the stirring speed is

[0055] 1550 rpm;

[0056] 3. After the stirring is finished, use a sand mill for sand grinding, and the number of grinding t...

Embodiment 3

[0064] A solvent-free polyurethane shoe sole white paste, comprising the following components (by weight):

[0065] 55 parts of rutile titanium dioxide; 20 parts of light calcium carbonate; 10 parts of polyalcohol; 6 parts of dispersant EAA; 10 parts of wetting agent polyoxyethylene fatty alcohol ether; 6 parts of anti-settling agent fumed silica; 0.3 parts of preservative BIT; 5 parts water.

[0066] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0067] 1. Mix water, polyalcohol, dispersant EAA, wetting agent polyoxyethylene fatty alcohol ether, and preservative BIT in proportion, stir and disperse, stir for 25 minutes, and the speed is 900 rpm;

[0068] 2. Add rutile titanium dioxide, light calcium carbonate, and anti-sedimentation agent fumed silica in proportion, and add while stirring. The stirring time is 3 hours, and the stirring speed is 1600 rpm;

[0069] 3. After the stirring is finished, use a sand mill for sand g...

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Abstract

The invention relates to solvent-free white paste for polyurethane shoe sole and a preparation process of white paste. The white paste contains the following components in parts by weight: 50-55 partsof titanium dioxide, 10-20 parts of light calcium carbonate, 5-10 parts of alcohol, 4-6 parts of a dispersing agent, 5-10 parts of a wetting agent, 2-6 parts of an anti-settling agent, 0.1-0.3 part of a preservative and 0.1-5 parts of water. The white paste provided by the invention can be used for completely replacing solvent type white paste for producing the polyurethane shoe sole, so that theemission of VOC is reduced, the air pollution is reduced, the white paste is environment-friendly and ecological, the air permeability, wear resistance, whiteness and yellowing resistance of the white paste are improved without changing the characteristics and functions of the shoe soles, and the white paste has very good market advantages.

Description

technical field [0001] The invention belongs to the technical field of pigment paste preparation, and in particular relates to a solvent-free polyurethane white paste for shoe soles and a preparation process thereof. Background technique [0002] Polyurethane foaming agent for shoe soles is a microporous elastomer between rubber and plastic. It is a microporous elastic structure with open cells. ~1), usually with 1~2mm self-skinning, which has excellent resilience and great energy absorption capacity. [0003] Polyurethane foam sole has the characteristics of softness, warmth, oil resistance, flex resistance, wear resistance, etc. It is more than 6 times wear-resistant than rubber. Its density and hardness can be adjusted in a wide range according to the requirements of use. It can be made into two colors (double Density) double-layer sole, the lower sole is a micro-foaming high wear-resistant working surface, and the inner sole is a comfortable elastic foam, which is extre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/22C08K3/26C08K5/053C08L75/04
CPCC08K3/22C08K3/26C08K5/053C08L75/04C08K2003/2241C08K2003/265
Inventor 王建旭赵磊张涛何贵平李明峰
Owner ZHEJIANG NAMEI MATERIAL TECH
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