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Solvent-free white slurry as well as preparation method and application thereof

A white paste, solvent-free technology, applied in the field of pigment paste preparation, can solve the problems of increasing VOC emissions, air pollution, etc., and achieve the effects of reducing VOC emissions, reducing overall energy consumption, and low energy consumption

Inactive Publication Date: 2021-12-03
ZHEJIANG NAMEI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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), which pollutes the air

Method used

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  • Solvent-free white slurry as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of white paste for solvent-free polyurethane shoe soles, comprising following components (by weight):

[0046] 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.

[0047] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0048] 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;

[0049] 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;

[0050] 3. After the stirring is finished, use a sand mill for sand grinding, and the number of grinding times is 2 time...

Embodiment 2

[0056] A kind of white paste for solvent-free polyurethane shoe soles, comprising following components (by weight):

[0057] 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 .

[0058] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0059] 1. Mix water, ethylene glycol, dispersant WY001, wetting agent NM-W101, and preservative B20 in proportion, stir and disperse, stir for 20 minutes, and the speed is 750 rpm;

[0060] 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 1550 rpm;

[0061] 3. After the stirring is finished, use a sand mill for sand grinding, and the number of grinding times is ...

Embodiment 3

[0067] A kind of white paste for solvent-free polyurethane shoe soles, comprising following components (by weight):

[0068] 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.

[0069] The preparation process of above-mentioned solvent-free polyurethane sole with white slurry is:

[0070] 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;

[0071] 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;

[0072] 3. After the stirring is finished, use a sand mill f...

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Abstract

The invention belongs to the technical field of pigment color paste preparation, and particularly relates to solvent-free white slurry as well as a preparation method and application thereof. The solvent-free white slurry provided by the invention is prepared from the following components in parts by weight: 50-55 parts of titanium dioxide; 10-20 parts of light calcium carbonate; 5 to 10 parts of alcohol; 4-6 parts of a dispersant; 5-10 parts of a wetting agent; 2-6 parts of an anti-settling agent; 0.1 to 0.3 part of a preservative; and 0.1 to 5 parts of water. The solvent-free white slurry provided by the invention can completely replace a solvent-type white slurry in production of polyurethane soles, VOC (Volatile Organic Compounds) emission is reduced, air pollution is reduced, the product is environment-friendly and ecological, the air permeability, the wear resistance, the whiteness and the yellowing resistance of the soles are improved on the basis of not changing the characteristics and functions of the soles, and the solvent-free white slurry has very market advantages.

Description

[0001] This application is a divisional application with an application date of March 27, 2019, an application number of 201910235133.X, and an invention title of "A white slurry for solvent-free polyurethane shoe soles and its preparation process". technical field [0002] The invention belongs to the technical field of pigment paste preparation, and in particular relates to a solvent-free white paste and its preparation method and application. Background technique [0003] Polyurethane foaming agent for shoe soles is a microporous elastomer between rubber and plastic. 1. There is usually 1-2mm self-skinning, which has excellent resilience and great energy absorption capacity. [0004] 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...

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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