Unlock instant, AI-driven research and patent intelligence for your innovation.

Aqueous dispersant based on polyacrylate structure

A technology of acrylate and wetting and dispersing agent, which is applied in application, coating, ink, etc., can solve problems such as poor fluidity, poor compatibility, and poor dispersibility, so as to prevent flocculation, excellent comprehensive dispersion performance, The effect of improving wetting ability and hydrophilic ability

Inactive Publication Date: 2020-04-21
博邦新材料科技(广州)有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, the use of dispersants in the field of water-based coating inks has been greatly limited, and most of them have poor compatibility with water-based systems, and problems such as flocculation and poor fluidity due to poor dispersibility

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aqueous dispersant based on polyacrylate structure
  • Aqueous dispersant based on polyacrylate structure
  • Aqueous dispersant based on polyacrylate structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add 600 parts of butyl acetate to a four-neck flask equipped with a thermometer, top stirrer, gas inlet and condenser, set the stirring speed to 200rpm, start stirring, and feed nitrogen, turn on the heating device, and set the reaction temperature to 126°C . At the same time, add 800 parts of polyethylene glycol monomethyl ether (400) of methacrylic acid in the beaker, 344 parts of Daicel FA2D monomer, 31.4 parts of dimethylaminoethyl methacrylate and 17.63 parts of benzene peroxide Formyl, and stir to mix well, set aside. When the temperature of the material in the flask is stable to 126°C, start to drop the mixed solution through the peristaltic pump. After the uniform dropwise addition within 3 hours, keep the temperature at 126°C for 2 hours, then cool down to 110°C, and depressurize at this temperature The solvent butyl acetate was pumped off. The temperature was lowered to room temperature, whereby Dispersion Agent 1 was obtained.

Embodiment 2

[0043] In a four-neck flask equipped with a thermometer, top stirrer, gas inlet and condenser, add 1040 parts of butyl acetate, set the stirring speed to 200rpm, start stirring, and feed nitrogen, turn on the heating device, and set the reaction temperature to 126°C . At the same time, add 1500 parts of polyethylene glycol monomethyl ether (750) of methacrylic acid in the beaker, 458 parts of Daicel FA3 monomer, 31.4 parts of dimethylaminoethyl methacrylate and 29.84 parts of benzene peroxide Formyl, and stir to mix well, set aside. When the temperature of the material in the flask is stable to 126°C, start to drop the mixed solution through the peristaltic pump. After the uniform dropwise addition within 3 hours, keep the temperature at 126°C for 2 hours, then cool down to 110°C, and depressurize at this temperature The solvent butyl acetate was pumped off. The temperature was lowered to room temperature, whereby Dispersion Agent 2 was obtained.

Embodiment 3

[0045] In a four-neck flask equipped with a thermometer, top stirrer, gas inlet and condenser, add 1310 parts of butyl acetate, set the stirring speed to 200rpm, start stirring, and feed nitrogen, turn on the heating device, and set the reaction temperature to 126°C . At the same time, add 2000 parts of methacrylic acid polyethylene glycol monomethyl ether (1000) in the beaker, 537 parts of Daicel FM2D monomer, 42 parts of 2-vinylpyridine and 38.68 parts of benzoyl peroxide, And stir to mix well, set aside. When the temperature of the material in the flask is stable to 126°C, start to drop the mixed solution through the peristaltic pump. After the uniform dropwise addition within 3 hours, keep the temperature at 126°C for 2 hours, then cool down to 110°C, and depressurize at this temperature The solvent butyl acetate was pumped off. The temperature was lowered to room temperature, whereby Dispersion 3 was obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an addition compound and a method for preparing the addition compound, and a wetting dispersant which containing the addition compound and can be used in a water-based paint ink. The addition compound is a polyacrylate polymer having a specific structure. The polyacrylate polymer dispersing aid has a structure represented by the following formula (I). The polyacrylate polymer disclosed by the invention is obtained through a free radical polymerization reaction; the polyester component is introduced into the polymer to provide steric hindrance to solid particles and prevent flocculation of the particles, meanwhile, the polyether component is introduced to improve the wetting capacity and the hydrophilic capacity of the solid particles, and finally, the introduced amino affinity groups are combined and anchored to the surfaces of the solid particles. The polyacrylate dispersing aid provided by the invention can provide excellent comprehensive dispersing performance for the obtained dispersoid when the polyacrylate dispersing aid is used for dispersing particle solids in a water-based paint ink system.

Description

technical field [0001] The invention relates to an addition compound and a preparation method of the addition compound. The addition compound is a polyacrylate polymer with a specific structure. This addition compound can be used as a wetting and dispersing agent in aqueous coating inks. The invention also relates to processes for the preparation of said substances. Background technique [0002] Solid particles are widely used as coloring or filling materials in coatings, adhesives, inks, paints, colorants and other industries. Particulate solids used as pigments or fillers generally have relatively small particle sizes, eg micron or even nanometer particle sizes. In order to introduce solid substances and pigments into a liquid medium, high mechanical forces must be used, which largely depend on the wettability of the surrounding medium for the solid substance, as well as its affinity for this medium. To reduce these dispersing forces, dispersants are traditionally used ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F283/01C08F220/34C08F226/06C09D7/65C09D11/03
CPCC08F283/065C08F283/01C09D7/65C09D11/03C08F220/34
Inventor 王金赖观品孙胜利
Owner 博邦新材料科技(广州)有限公司