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A kind of water-based high-gloss anti-rust carbon black slurry and its preparation method and application

A black paste, high gloss technology, applied in the direction of pigment paste, anti-corrosion coatings, coatings, etc., can solve the problems of unfavorable water-based coating system application, not easy to be wetted by water, small carbon black particles, etc., to achieve good color development, Reduced grinding and dispersion time, good compatibility

Active Publication Date: 2020-12-08
GUANGDONG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As an ideal black pigment, carbon black has good colorability, weather resistance and chemical stability, but carbon black itself has small particles, large specific surface area, and high surface free energy, so carbon black particles form a strong aggregation force , prone to cluster phenomenon, forming Cluster groups, making its properties hydrophobic, difficult to be wetted by water, and difficult to disperse, which is not conducive to its application in water-based coating systems, which limits its application in coatings

Method used

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  • A kind of water-based high-gloss anti-rust carbon black slurry and its preparation method and application
  • A kind of water-based high-gloss anti-rust carbon black slurry and its preparation method and application
  • A kind of water-based high-gloss anti-rust carbon black slurry and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 0.95kg of water in a 4kg tank equipped with a high-speed disperser, 0.02kg of pH regulator DEMA, 0.04kg of organic pigment dispersant (dispersant BYK199 produced by BYK Chemical China Co., Ltd., BYK Chemical China Co., Ltd. production of dispersant BYK2010 and Lubrizol Additives (Zhuhai) Co., Ltd. production of dispersant 27000 mixture), 0.04kg of inorganic pigment dispersant FSE (purchased from Clariant Chemicals China Co., Ltd.) and 0.10kg of moisturizing The antifreeze agent 1,2-propanediol is mixed and stirred, the stirring speed is controlled at 1500-2000r / min, so that the dispersant is dispersed evenly, the stirring speed is reduced to 800-1200r / min, and 0.008kg of defoamer is added under the condition of stirring 810, to eliminate the bubbles produced by the dispersant due to high-speed stirring, and then add 0.36kg of carbon black H380, 0.4kg of zinc phosphate Zp-10 (Hangzhou Haibo Pigment Co., Ltd.), 0.2kg of APW-II, and 0.2kg of 800 Superfine barium sulfat...

Embodiment 2

[0023] Add 1.15kg of water in a 4kg tank equipped with a high-speed disperser, 0.015kg of pH regulator DEMA, 0.05kg of organic pigment dispersant (dispersant BYK199 produced by BYK Chemical China Co., Ltd., BYK Chemical China Co., Ltd. production of dispersant BYK2010 and Lubrizol Additives (Zhuhai) Co., Ltd. production of dispersant 27000 mixture), 0.08kg of inorganic pigment dispersant FSE (purchased from Clariant Chemicals China Co., Ltd.) and 0.12kg of moisturizing The antifreeze agent 1,2-propanediol is mixed and stirred, the stirring speed is controlled at 1500-2000r / min, so that the dispersant is dispersed evenly, the stirring speed is reduced to 800-1200r / min, and 0.01kg of defoaming agent is added under the condition of stirring Agent 810 to eliminate the bubbles produced by the dispersant due to high-speed stirring, and then add 0.42kg of carbon black H380, 0.5kg of zinc phosphate Zp-10 (Hangzhou Haibo Pigment Co., Ltd.), 0.2kg of APW-Ⅱ, and 0.5kg of 800 mesh ultrafi...

Embodiment 3

[0027] The water-based high-gloss anti-rust carbon black slurry obtained by grinding in Example 1 is configured with water-based epoxy one-component anti-rust paint according to the following parts by weight:

[0028]

[0029]

[0030] The water-based epoxy one-component antirust paint obtained in this embodiment was tested for performance, and the results are shown in Table 1.

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Abstract

The invention belongs to the field of water-based corrosion-resistant coating and discloses water-based high-gloss anti-rust carbon black color paste, as well as a preparation method and application thereof. The color paste consists of the following components in parts by weight: 0.5 to 2.5 parts of an organic pigment dispersing agent, 1 to 5 parts of an inorganic pigment dispersing agent, 0.1 to 1.0 part of a defoaming agent, 0 to 2.5 parts of a pH regulator, 10 to 25 parts of carbon black, 5 to 20 parts of aluminium triphosphate, 15 to 25 parts of zinc phosphate, 0 to 25 parts of superfine barium sulfate, 1 to 5 parts of a wetting and antifreezing agent, 0 to 4.0 parts of an anti-settling thixotropic agent, 0.1 to 1.0 part of anti-mildew bactericide and 30 to 60 parts of water. The preparation method provided by the invention is simple, environmentally friendly, and low in energy consumption and cost; the prepared water-based high-gloss anti-rust carbon black color paste has excellent performance and high compatibility and color contrast property with various kinds of water-based anti-rust varnish, and is suitable for preparation of high-gloss water-based corrosion-resistant finish paint.

Description

technical field [0001] The invention belongs to the field of water-based anticorrosion coatings, and in particular relates to a water-based high-gloss anti-rust carbon black slurry and its preparation method and application. Background technique [0002] Color paste is an important part of paint as a colorant. With the development of coatings, pigments and additives industry, the paint color matching process has changed from pigment powder to color paste, and my country's color paste industry has also undergone fundamental changes. From the mid-1990s, it basically relied on imports. At the end of the 1990s, two or three domestic enterprises and scientific research institutions began to develop their own research and development, and initially formed a small-scale trial promotion. In the past 20 years, the number of domestic manufacturers specializing in the production of water-based colorants has increased to nearly 50. The application of water-based color paste has become mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00C09D5/08
CPCC09D5/084C09D17/001C09D17/005
Inventor 成晓玲周浩姚煌胡永俊罗继业
Owner GUANGDONG UNIV OF TECH