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A kind of superhydrophobicity and stain-resistant water-based UV coating and preparation method thereof

A stain-resistant, super-hydrophobic technology, applied in anti-fouling/underwater coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc. requirements and other issues, to achieve the effect of good surface hydrophobicity, simple process and low cost

Active Publication Date: 2021-06-08
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention still cannot meet the requirements of UV coating superhydrophobicity and stain resistance

Method used

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  • A kind of superhydrophobicity and stain-resistant water-based UV coating and preparation method thereof
  • A kind of superhydrophobicity and stain-resistant water-based UV coating and preparation method thereof
  • A kind of superhydrophobicity and stain-resistant water-based UV coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A superhydrophobic and stain-resistant water-based UV coating, the components and percentages contained in it are shown in Table 1. The preparation method is as follows:

[0039] (1) prepare materials according to the parts by weight of each component;

[0040] (2) Add urethane acrylate, epoxy acrylate, and water-based hyperbranched polyurethane to the aqueous solution dissolved with dispersant and water-soluble active diluent in sequence according to the dosage, and stir and disperse evenly;

[0041] (3) Add the silicone hydrophobic agent into the above water-based system, and then stir and disperse evenly.

[0042] (4) Add other required additives sequentially while stirring, then stir at a speed of 500-2500rpm for 15-20min, and let it stand for a period of time to obtain a superhydrophobic and stain-resistant water-based UV coating.

[0043] The test results of the coating formed after the prepared coating is sprayed and cured are shown in Table 2, wherein:

[004...

Embodiment 2

[0048] A super-hydrophobic and stain-resistant water-based UV coating, its components and percentage content are shown in Table 1. The preparation method is detailed in Example 1.

[0049] The test results of the coating formed after the prepared coating is sprayed and cured are shown in Table 2, wherein:

[0050] Contact angle: refer to GB / T 30693-2014;

[0051] Static contact angle: 150.02°; rolling contact angle: 10.01°;

[0052] Stain resistance test: refer to GB / T 9780-2013.

Embodiment 3

[0054]A super-hydrophobic and stain-resistant water-based UV coating, its components and percentage content are shown in Table 1. The preparation method is detailed in Example 1.

[0055] The test results of the coating formed after the prepared coating is sprayed and cured are shown in Table 2, wherein:

[0056] Contact angle: refer to GB / T 30693-2014;

[0057] Static contact angle: 154.11°; rolling contact angle: 8.31°;

[0058] Stain resistance test: refer to GB / T 9780-2013.

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Abstract

The invention relates to a superhydrophobic and stain-resistant water-based UV coating and a preparation method thereof. The coating comprises the following components in mass percentage: 25-35% of polyurethane acrylate, 20-30% of epoxy acrylate, overrun Polyurethane 5-10%, water-soluble reactive diluent 1-10%, silicone hydrophobic agent 5-15%, photoinitiator 1-10%, dispersant 2-10%, auxiliary agent 2-10%, water 5% ~20%. Compared with the prior art, the invention has simple preparation, good adhesion performance, low cost, and the formed coating has excellent hydrophobic effect and stain resistance effect.

Description

technical field [0001] The invention relates to the field of water-based UV coatings and 3C products or automotive interior coatings, in particular to a superhydrophobic and stain-resistant water-based UV coating and a preparation method thereof. Background technique [0002] 3C products (collectively referred to as communication and other electronic products) and automotive interior products have attracted people's attention for their performances such as hand sweat resistance, stain resistance, and self-cleaning. [0003] Generally, the surface material of this type of electronic product is basically plastic material, so most of the surface coating is carried out by low-temperature curing methods such as UV curing. In addition, UV curing coatings have many advantages such as fast curing speed, less volatile component residues, and less energy consumption. Making it the first choice for coating this type of product. Therefore, UV curable coatings that can form functional c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D163/10C09D183/04C09D187/00C09D5/16C09D7/65C08G81/02
Inventor 朱忠敏叶小明张红军鲁帆帆
Owner DONGLAI COATING TECH SHANGHAI