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Dendritic polymer dispersant-added waterborne coating ink

A technology of water-based coatings and polymers, applied in the field of coatings, can solve the problems of poor coating stability, high process costs, and difficulty in widespread promotion, and achieve the effects of improving coating performance, improving process effects, and improving process effects

Active Publication Date: 2015-04-08
WEIHAI CY DENDRIMER TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the common traditional low-molecular-weight dispersants have a relatively narrow application range, especially for the field of water-based coating inks. After dispersion, the coating stability is poor, the results of common indicators are poor, and the dosage is large. lead to high process cost
Most of the high-molecular-weight dispersants on the market are block-type polymer dispersants, which can solve the application defects of low-molecular-weight dispersants. Dendritic organic pigment dispersants have been reported in the literature, but many active groups are not the best for organic pigments. Good group, and the synthesis process is complicated, it is difficult to widely popularize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A water-based paint ink added with a dendritic polymer dispersant, comprising the following components by weight: 1 part of polyamide-amine dendritic polymer, 120 parts of water-based acrylic resin, 8 parts of permanent yellow, and 11 parts of water.

[0021] According to the same formula, compare the dispersion performance of traditional dispersants.

[0022] Add the dendritic polymer, water-based resin, toner, and solvent into the mixing tank of the sand mill according to the proportion, stir and mix evenly, and obtain the water-based paint ink added with the dendritic polymer dispersant.

[0023] The beneficial effect of described water-based paint ink is:

[0024] Dispersant Auxiliary / pigment Fineness (um) Viscosity mPa.s Traditional Dispersants (45%) 20% ＜15 165 Dendritic Dispersant (40%) 12.5% ＜10 135

Embodiment 2

[0026] A kind of water-based paint ink that has added dendritic polymer dispersant, comprises following weight components: 2 parts of polypropylene imine dendrimers, 120 parts of water-based acrylic resins, 12 parts of pigment yellows, water and dimethyl formaldehyde 22 parts of mixed solution of amide DMF.

[0027] According to the same formula, compare the dispersion performance of traditional dispersants.

[0028] Add the dendritic polymer, water-based resin, toner, and solvent into the mixing tank of the sand mill according to the proportion, stir and mix evenly, and obtain the water-based paint ink added with the dendritic polymer dispersant.

[0029] The beneficial effect of described water-based paint ink is:

[0030] Dispersant Auxiliary / pigment Fineness (um) Viscosity mPa.s Traditional Dispersants (45%) 20% ＜20 1360 Dendritic Dispersant (40%) 16.7% ＜15 950

Embodiment 3

[0032] A water-based paint ink added with a dendritic polymer dispersant, comprising the following components by weight: 1 part of polyethyleneimine dendritic polymer, 150 parts of water-based acrylic resin, 10 parts of quinacridone red, and 15 parts of water .

[0033] According to the same formula, compare the dispersion performance of traditional dispersants.

[0034] Add the dendritic polymer, water-based resin, toner, and solvent into the mixing tank of the sand mill according to the proportion, stir and mix evenly, and obtain the water-based paint ink added with the dendritic polymer dispersant.

[0035] The beneficial effect of described water-based paint ink is:

[0036] Dispersant Auxiliary / pigment Fineness (um) Viscosity mPa.s Traditional Dispersants (45%) 20% ＜15 860 Dendritic Dispersant (40%) 10% ＜10 632

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PUM

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Abstract

The invention relates to dendritic polymer dispersant-added waterborne coating ink and belongs to the field of coatings. The waterborne coating ink comprises the following components in parts by weight: 1-3 parts of dendritic polymer, 80-150 parts of waterborne resin, 8-12 parts of toner and 11-22 parts of a solvent. The waterborne coating ink has the beneficial effects that 1, the industrial production is achieved, the process is simple and the batch promotion can be achieved; 2, the property of the coating can be increased, the process effect is improved and such mechanical properties of the coating as adhesive force, flexibility, hardness, wear resistance and the like cannot be decreased; 3, the waterborne coating ink can be universal for dispersion of azo and quinacridone organic pigments, compared to conventional dispersants, the dendritic dispersant disclosed by the invention has significant advantages of final evaluation indicators, namely, viscosity and fineness over the conventional dispersants, the addition is less than those of the conventional dispersants, the overall advantages are prominent and purposes that the cost is saved and the process effects is improved can be achieved.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a water-based coating ink added with a dendritic polymer dispersant. Background technique [0002] In the field of coatings, the dispersion of organic pigments has always been a problem. Common polymer dispersants have a large amount of use, resulting in high costs, and the dispersion effect is not good enough, the uniformity and stability are poor, and the dispersion is uniform, so they cannot be widely used for different organic pigments. Dispersion, resulting in high production costs, unsatisfactory weather resistance and aging resistance after construction. [0003] In the production of paint and ink, pigment dispersion is an important link. Dispersants can promote the production process to obtain uniform and stable coatings. Pigment dispersants are effective additives that can effectively achieve uniform dispersion of pigment particles during the grinding process and can be placed s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03
CPCC09D11/03
Inventor 李武松迟盈盈许士凯刘聪聪
Owner WEIHAI CY DENDRIMER TECH
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