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Ultrahigh solid aqueous resin-free white color paste and preparation method thereof

A water-based, resin-free technology, applied in the field of ultra-high solid water-based resin-free white paste and its preparation, can solve the problems of poor compatibility, low titanium dioxide content, and inapplicability, and achieve high production efficiency and simple preparation method. , good compatibility effect

Pending Publication Date: 2019-04-09
NIPPON PAINT GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the traditional water-based white paste contains the main resin of the matching coating system, the content of titanium dioxide is low, and the compatibility is poor, so it cannot be applied to various coating systems

Method used

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  • Ultrahigh solid aqueous resin-free white color paste and preparation method thereof
  • Ultrahigh solid aqueous resin-free white color paste and preparation method thereof
  • Ultrahigh solid aqueous resin-free white color paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041]

[0042] In the state of stirring, slowly add water, titanium dioxide, wetting agent, defoamer, preservative and anti-sedimentation agent to the dispersant according to the aforementioned parts by weight, and disperse at a high speed to prepare a slurry; the slurry is ground to Specify the fineness to obtain the ultra-high solids water-based resin-free white pulp. Wherein, the dispersant is used as a primer, and in the state of stirring, the stirring speed is 600-800r / min, and the above-mentioned other substances are mixed and dispersed at a high speed in sequence (the time interval is 10min), and the time is 30min, and a slurry is prepared. The viscosity of the slurry is greater than or equal to 90KU (20°C); the slurry is ground by a sand mill to a fineness of 0-5um to obtain the ultra-high solids water-based resin-free white slurry.

Embodiment 2

[0044]

[0045] In the state of stirring, slowly add water, titanium dioxide, wetting agent, defoamer, preservative and anti-sedimentation agent to the dispersant according to the aforementioned parts by weight, and disperse at a high speed to prepare a slurry; the slurry is ground to Specify the fineness to obtain the ultra-high solids water-based resin-free white pulp. Wherein, the dispersant is used as a primer, and in the state of stirring, the stirring speed is 600-800r / min, and the above-mentioned other substances are mixed and dispersed at a high speed in sequence (the time interval is 10min), and the time is 30min, and a slurry is prepared. The viscosity of the slurry is greater than or equal to 90KU (20°C); the slurry is ground by a sand mill to a fineness of 0-5um to obtain the ultra-high solids water-based resin-free white slurry.

Embodiment 3

[0047]

[0048]In the state of stirring, slowly add water, titanium dioxide, wetting agent, defoamer, preservative and anti-sedimentation agent to the dispersant according to the aforementioned parts by weight, and disperse at a high speed to prepare a slurry; the slurry is ground to Specify the fineness to obtain the ultra-high solids water-based resin-free white pulp. Wherein, the dispersant is used as a primer, and in the state of stirring, the stirring speed is 600-800r / min, and the above-mentioned other substances are mixed and dispersed at a high speed in sequence (the time interval is 10min), and the time is 30min, and a slurry is prepared. The viscosity of the slurry is greater than or equal to 90KU (20°C); the slurry is ground by a sand mill to a fineness of 0-5um to obtain the ultra-high solids water-based resin-free white slurry.

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Abstract

The invention discloses ultrahigh solid aqueous resin-free white color paste which is prepared from the following components in parts by weight: 6-14 parts of a dispersant, 5.5-20 parts of water, 70-80 parts of toner, 0.3-1.5 parts of a wetting agent, 0.3-1.0 part of a defoamer, 0.1-0.4 part of a preservative and 0.2-1.0 part of an anti-settling agent. The ultrahigh solid aqueous resin-free whitecolor paste taking water as a solvent is free of VOC, environment-friendly and safe, free of resin, good in intermiscibility, suitable for various different aqueous coating systems and ultrahigh in solid content, and can meet the demand with only a relatively small adding amount.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to an ultra-high solid water-based resin-free white paste applicable to various water-based coating systems and a preparation method thereof. Background technique [0002] With the increasing number of automobiles in China, the rapid rise of the automobile aftermarket will lead to an increase in the market demand for automobile repair coatings and original automobile coatings containing new materials and technologies. At the same time, the environmental protection upgrading or technological innovation of the original automobile painting line and its new production capacity will promote the rapid growth of automobile water-based coatings. As my country's laws, regulations and supervision become increasingly stringent, and the whole society continues to promote the concept of low-carbon environmental protection, water-based automotive coatings will become an inevitable trend in the fut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00
CPCC09D17/001C09D17/008
Inventor 林业伟夏天渊郭峻峰董明琪
Owner NIPPON PAINT GUANGZHOU