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A water-based paint ink containing a novel compound dendritic organic pigment dispersant

A technology of organic pigments and water-based coatings, which is applied in the direction of epoxy resin coatings, inks, polyester coatings, etc., can solve the problems of insufficient dispersion effect, poor stability, and high viscosity of colorants, so as to improve dispersion performance, versatility, and ease of use. The effect of industrial production and easy use

Active Publication Date: 2017-01-04
WEIHAI CY DENDRIMER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field of coatings and inks, the dispersion of organic pigments has always been a difficult problem. The existing polymer dispersants have disadvantages such as large dosage, high viscosity of color paste, high cost, insufficient dispersion effect, poor stability, etc., especially for dispersants. Due to the characteristics of strong compatibility, the same dispersant cannot be widely used in the dispersion of different organic pigments, resulting in increased production costs for users
In addition, the weather resistance and aging resistance of existing polymer dispersants are not ideal

Method used

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  • A water-based paint ink containing a novel compound dendritic organic pigment dispersant
  • A water-based paint ink containing a novel compound dendritic organic pigment dispersant
  • A water-based paint ink containing a novel compound dendritic organic pigment dispersant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In the sand mill mixing tank, put into the compound mixture 1.6 kg (60 parts of dendrimers and 40 parts of organic ammonium salts) of amino-terminated G1.0 generation polyamide-amine dendrimers and acrylate ammonium salts, Add 84 kg of water-based acrylic resin and mix, and finally add 84 kg of organic pigment yellow 3G, 3 kg of water and solvent (DMF) and mix well to obtain a new water-based paint ink. Among them, the addition amount of compound dendrimer pigment dispersant is 1.6 kg. Contrast test with traditional dispersants under the same formula structure:

[0019]

[0020] Test results:

[0021]

Embodiment 2

[0023] In the sand mill mixing tank, drop into the mixture of polypropylene imine dendrimers and acrylate ammonium salt, 2kg (60 parts of dendrimer and 40 parts of organic ammonium salt), add 70 kg of water-based acrylic resin and mix, Finally, add 10 kg of organic pigment red PR122 and 18 kg of water and mix well to obtain a new water-based paint ink. The addition amount of compound dendrimer pigment dispersant is 2 kg. Contrast test with traditional dispersants under sample formula framework:

[0024]

[0025] Test results:

[0026]

Embodiment 3

[0028] In the sand mill mixing tank, put 5 kg of the mixture of polyethyleneimine dendritic polymer and acrylate ammonium salt (60 parts of dendritic polymer and 40 parts of organic ammonium salt), add 70 kg of water-based acrylic resin and mix, Finally, add 10 kg of Capote carbon black 430 and 15 kg of water and mix well to obtain a new type of water-based paint ink. The addition amount of compound dendritic polymer pigment dispersant is 5 kg. Contrast test with traditional dispersants under sample formula framework:

[0029]

[0030] Test results:

[0031]

[0032] Conclusion analysis:

[0033] The comprehensive experimental data in Examples 1-3 shows that compared with traditional dispersants, this new compound dendritic organic pigment dispersant has a smaller addition amount, and it has better performance in terms of pigment fineness, dispersion efficiency, color paste liquid storage stability, and color paste viscosity. All aspects can reach or be better than tr...

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PUM

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Abstract

The invention discloses a water-based paint ink containing novel compound dendritic organic pigment dispersing agent and a preparation method thereof. The water-based paint ink contains 1 to 15 parts of novel compound dendritic organic pigment dispersing agent, 50 to 90 parts of water-based resin and 10 to 30 parts of organic pigments, wherein the novel compound dendritic organic pigment dispersing agent contains 60 to 80 parts of dendritic polymer and 20 to 40 parts of organic ammonium salt. The novel compound dendritic organic pigment dispersing agent is particularly suitable for the field of water-based paint ink and has the characteristics of less consumption, good color paste storage stability, low production cost and simple process; moreover, the industrialized production is likely to realize, and the market potential is vast.

Description

technical field [0001] The invention relates to a water-based paint ink, in particular to a water-based paint ink containing a novel composite dendritic organic pigment dispersant. Background technique [0002] In the production of paint and ink, pigment dispersion is a crucial link. Choosing a suitable dispersant can easily obtain a paint with uniform pigment dispersion and stable storage. Pigment dispersants are effective and necessary additives that can effectively achieve uniform dispersion of pigment particles during the grinding process and keep them stable. In the paint production process, the pigment is uniformly dispersed in the paint with tiny particles under the grinding shear force. Due to the low polarity of the surface of the pigment particles, it is not easy to disperse stably in the water-based medium, which makes the dispersion stability when preparing water-based paint inks. Problems are difficult to solve, reducing the scope of its use. Therefore, it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D175/04C09D163/00C09D133/00C09D7/12C09D11/00
CPCC09D7/63C09D7/70C09D11/00C09D133/00C09D163/00C09D167/08C09D175/04C08L87/00C08K5/19
Inventor 李武松许士凯迟盈盈刘聪聪
Owner WEIHAI CY DENDRIMER TECH