Water-based two-component matte white finish paint and preparation method thereof

A two-component, white topcoat technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of water-based two-component topcoats that cannot be recycled, viscosity rises, and cannot be sprayed efficiently. Large-scale production use, good viscosity stability, the effect of improving the usable time

Inactive Publication Date: 2020-05-19
SHANGHAI CHANGRUNFA PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the coalescent and water in the paint film sprayed and atomized on the track are volatilizing rapidly, the viscosity rises sharply, and the gelling process is being accelerated, while the water-based two-component topcoats on the market cannot compare The single-component topcoat is reciprocated and recycled, so that the customer's reciprocating machine equipment cannot truly achieve the purpose of efficient spraying while saving water paint

Method used

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  • Water-based two-component matte white finish paint and preparation method thereof
  • Water-based two-component matte white finish paint and preparation method thereof
  • Water-based two-component matte white finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1: A kind of water-based two-component matte white topcoat, each component and its corresponding parts by weight are as shown in Table 1, wherein the first component is prepared through the following steps:

[0057] S1, according to the corresponding parts by weight in Table 1, put the hydroxyl acrylic resin and polyurethane into the dispersion tank, and disperse at 400rpm for 5min;

[0058] S2, put the amine neutralizer, wetting agent and defoamer of the corresponding parts by weight into the dispersion cylinder in the S1 step, increase the rotating speed to 600rpm, disperse for 5min, then add the film-forming aid and thickener, continue Disperse for 5 minutes;

[0059] S3, reduce the speed to 300rpm, put in the matting agent, increase the speed to 1000rpm, disperse at high speed for 30 minutes and scrape the glass without shrinkage cavity, and the fineness of the fineness plate is less than 30μm;

[0060] S4, reduce the rotation speed to 600rpm, then add w...

Embodiment 2-6

[0074] Example 2-6: A water-based two-component matte white topcoat. The difference from Example 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0075] Each component and parts by weight thereof in table 1 embodiment 1-6

[0076]

Embodiment 7

[0077] Embodiment 7: A kind of water-based two-component matt white finish paint, the difference with embodiment 1 is that the hydroxyl group content of the hydroxyacrylic resin in the first component is 3.9%.

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Abstract

The invention discloses water-based two-component matte white finish paint and a preparation method thereof, and relates to the technical field of water-based paint. The technical key points are as follows: the water-based two-component matte white finish paint comprises a component A and a component B. The component A comprises the following components in parts by weight: 15-40 parts of hydroxy acrylic resin; 15-40 parts of polyurethane; 0.3-0.8 parts of an amine neutralizer; 0.1-0.5 parts of a wetting agent; 0.5-1 parts of a de-foaming agent; 2-6 parts of a coalescing agent; 0.2-0.6 parts ofa thickening agent; 0.5-1 parts of a delustering agent; 25-30 parts of white pulp; 1-3 parts of a wax additive; 0.05-0.1 parts of a preservative; 5-10 parts of water; the component B is prepared fromthe following components in parts by weight: 32-64 parts of HDI; 20-60 parts of IPDI; 7-15 parts of PGDA; and 0.1-0.5 parts of a dehydrating agent. The water-based two-component matte white finish paint prepared by adopting the formula has the advantages of the long service life and recyclability.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to a water-based two-component matte white finish and a preparation method thereof. Background technique [0002] At present, the oil-to-water process of large-scale furniture enterprises is mainly divided into the following categories: The first category is furniture enterprises that focus on furniture back-end customization, basically using water-based two-component primer + water-based two-component topcoat as the main process , the construction method is mainly based on diaphragm pump spraying; the second type is furniture enterprises mainly based on panel furniture and wooden doors. The third category is based on bamboo products and pine furniture companies. Water-based one-component base + water-based one-component topcoat is a common process, and the construction method is mainly electrostatic spraying equipment. [0003] The present invention mainly provides a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C08G18/62C08G18/73C08G18/75
CPCC08G18/6229C08G18/73C08G18/755C09D175/04
Inventor 王柳生梁文文
Owner SHANGHAI CHANGRUNFA PAINT
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