Self-cleaning type high-durability top coat coating material and color coating steel plate coated with self-cleaning type high-durability top coat coating material

A color-coated steel plate, self-cleaning technology, used in polyester coatings, coatings, layered products, etc., can solve the problem of not having both durability and self-cleaning properties, and achieve self-cleaning function, good UV resistance, The effect of good stain resistance

Active Publication Date: 2016-02-10
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the color-coated steel sheet in the prior art cannot have durability and self-cleaning property well

Method used

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  • Self-cleaning type high-durability top coat coating material and color coating steel plate coated with self-cleaning type high-durability top coat coating material
  • Self-cleaning type high-durability top coat coating material and color coating steel plate coated with self-cleaning type high-durability top coat coating material
  • Self-cleaning type high-durability top coat coating material and color coating steel plate coated with self-cleaning type high-durability top coat coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A1-A5 and comparative example B1-B5

[0041] According to the mass percent distribution ratio of each chemical composition shown in Table 1, prepare the topcoat coating in embodiment A1-A5 and comparative example B1-B5, wherein, the non-volatile matter content of the topcoat coating in embodiment A1-A5 It is 55~65%, and the viscosity is 15~30s (the viscosity Cai-4 that utilizes Cai-4 cup to measure).

[0042] Table 1 lists the mass percentage distribution of each chemical component of the topcoat coatings in Examples A1-A5 and Comparative Examples B1-B5 of this case.

[0043] Table 1*.(wt.%)

[0044]

[0045] *Note: 1. The matrix resin is an aliphatic polyester resin with a molecular weight of 3000-5000, its glass transition temperature is 15-35°C, its acid value is 25-45mgKOH / g, its hydroxyl value is 120-170mgKOH / g; its solid content is 50-70 %.

[0046] 2. The cross-linking resin is at least one of epoxy-modified amino resin, melamine-formaldehyde resin and urea-formaldehyde resin, and optimally, melamine-f...

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Abstract

The present invention discloses a self-cleaning type high-durability top coat coating material, which has the following chemical components by mass: 30-47% of a matrix resin, 3-10% of a cross-linked resin, 0.1-0.3% of an acid catalyst, 25-40% of an inorganic pigment, 2-6% of a hydrophilic auxiliary agent, 0.3-2% of a lubricating auxiliary agent, 2-7% of an adjusting auxiliary agent, and 10-25% of a solvent. The present invention further provides a color coating steel plate, which sequentially comprises a substrate with a plating layer, a pretreatment layer, a front surface prime coat layer, a back surface prime coat layer, a front surface top coat layer, and a back surface top coat layer from outside to inside, wherein the front surface top coat layer is obtained by coating the self-cleaning type high-durability top coat coating material. According to the present invention, the self-cleaning type high-durability top coat coating material has characteristics of excellent self-cleaning function and high durability; and the color coating steel plate has characteristics of excellent hydrophilicity, good stain resistance, self-cleaning function, and excellent durability.

Description

technical field [0001] The invention relates to a paint and a steel plate coated with the paint, in particular to a top paint paint and a steel plate coated with the paint. Background technique [0002] Because of its beautiful appearance, different color combinations and excellent protective properties, color-coated steel sheets are widely used in the roof and wall of light steel structures in the construction industry. However, with the passage of time, color-coated steel sheets often encounter failure problems such as loss of gloss, powdering, discoloration, and corrosion. In addition, long-term use will cause serious staining on the surface of the color-coated steel plate, and manual cleaning is time-consuming, laborious and expensive, and it is difficult to clean it completely in the end. Therefore, manufacturers hope that color-coated steel sheets can have both high durability and self-cleaning functions. [0003] The publication number is CN101985250A, and the publi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D161/32C09D161/28C09D161/24C09D7/12B32B15/092B32B15/095B32B27/08B32B27/36
Inventor 马源杨家云戴毅刚
Owner BAOSHAN IRON & STEEL CO LTD
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