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A kind of anti-ultraviolet color repairing agent and preparation method thereof

A UV-resistant and color-repairing technology, applied in radiation-absorbing coatings, coatings, polyurea/polyurethane coatings, etc., can solve the problems of different UV-resistant properties of coatings, avoid easy delamination after standing, and meet the needs of assembly lines. Effect of coating requirements

Active Publication Date: 2021-10-26
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a combination of quick-drying, good adhesion with various primers, UV absorbers and pigments, to solve the problem of different UV resistance properties of the coating due to uneven stirring, and to meet the application requirements of furniture assembly line coating Anti-ultraviolet color repairing agent and preparation method thereof

Method used

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  • A kind of anti-ultraviolet color repairing agent and preparation method thereof
  • A kind of anti-ultraviolet color repairing agent and preparation method thereof
  • A kind of anti-ultraviolet color repairing agent and preparation method thereof

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Embodiment Construction

[0035] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than Full examples.

[0036] The components of Embodiment 1-5 of the present invention are as follows:

[0037] The water-based polyurethane resin is an anionic aliphatic polyester polycarbonate water-based polyurethane that does not contain solvent-free, low-viscosity, and free isocyanate groups. The solid content is 35 parts by weight, the pH is 7.5-8.5, and the MFFT is 5. ℃, density 1.05g / cm3, can choose the water-based polyurethane resin of U9150 brand of Oubaodi company; the water-based multi-functional auxiliary agent adopts AMP-95 multi-functional auxiliary agent, which can adjust the pH value, synergistically strengthen the dispersant, defoaming agent, leveling agent, etc....

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Abstract

The invention discloses an ultraviolet-resistant color repairing agent, which is composed of the following raw materials in parts by weight: 15-20 parts by weight of water-based polyurethane resin, 1-10 parts by weight of ultraviolet-resistant resin particles, 0.1-0.5 parts by weight of PH regulator, water-based moisturizer 0.1-0.3 parts by weight of wet agent, 0.1-0.3 parts by weight of water-based defoamer, 0.1-0.3 parts by weight of water-based thickening rheological agent, 3.0-5.0 parts by weight of co-solvent, 0.1-0.2 parts by weight of silane coupling agent, hydrophilic 70-80 parts by weight of solvent, 1-10 parts by weight of water, base material, pigment and ultraviolet absorber are wrapped in the UV-resistant resin particles, and the resin particles are selected from polypropylene resin, polycarbonate resin, nylon resin, One or more of polyetheretherketone resin and polyethersulfone resin, the base material is nano-inorganic particles, and the particle size of the nano-inorganic particles is 1-100nm. The invention does not need to add or change the original production equipment, has fast drying, good adhesion, meets the requirements of assembly line coating, and the ultraviolet absorber can be evenly mixed with the pigment, avoiding the problem of easy separation after standing for a long time, and is suitable for industrialized large-scale production.

Description

technical field [0001] The invention relates to the field of coatings, in particular to the field of water-based varnishes used for furniture and woodware. Background technique [0002] Due to the further restrictions on VOC emissions of coatings by the national environmental protection policy, water-based coatings are used more and more in wood coatings due to their environmental protection and low VOC emissions. At present, the color in the production and painting of furniture is made of color correction agent or color correction essential oil plus color essence, and the drying time is longer. In the coating process, the water-based topcoat can only be applied after the application of the UV-resistant color correction agent is dry, which greatly affects the coating efficiency and prolongs the time for the finished furniture to go off the assembly line and enter the market. During the painting process of the automatic assembly line of furniture, the topcoat must be sprayed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D133/14C09D5/32C09D7/61C09D7/63C09D7/65
CPCC08L2201/08C08L2205/025C08L2205/035C09D5/32C09D175/04C09D7/61C09D7/63C09D7/65C08L75/04C08L33/14C08L83/04C08K3/34C08K5/5435
Inventor 周伟建符传杰张旭黄理荣罗俊君
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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