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A water-based UV-curable bmc high temperature resistant coating

A high-temperature-resistant coating and ultraviolet light technology, which is applied in fire-resistant coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as unusable coatings, environmental pollution, and coatings that are not resistant to high temperatures, so as to improve the brightness of light, The effect of ensuring driving safety and high temperature resistance

Active Publication Date: 2020-04-21
YIXING HONGTAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the specific requirements of the application field, especially the coating of the BMC base material of the automobile lamp reflector, the film thickness is required to be extremely thin, and the high and long-term high temperature resistance requirements make the traditional UV-curable coatings unable to be used in automobiles. Coating of lamp reflector BMC base material
At present, the coating of the BMC base material of the automobile lamp reflector at home and abroad is a UV-curable coating containing a large amount of organic solvents. The organic solvents volatilize, pollute the environment, and have toxic effects on humans.
The key technology of this kind of water-based light-curing coating lies in the selection of professional water-based resin. If oil-based resin or oil-based resin is directly used for emulsion in this water-based system, the surface of the coating will be uneven and the gloss will not meet the requirements, which will lead to The reflectivity does not meet the requirements, moreover, the coating is not resistant to high temperature due to the phase separation of the main raw materials after spraying

Method used

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  • A water-based UV-curable bmc high temperature resistant coating
  • A water-based UV-curable bmc high temperature resistant coating
  • A water-based UV-curable bmc high temperature resistant coating

Examples

Experimental program
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Effect test

preparation example Construction

[0021] The preparation method of this coating is:

[0022] (1) Add 10-15 parts of acrylic acid monomer and 5-10 parts of co-solvent into the reactor, start stirring for 10 minutes, frequency: 600-800r / min, temperature: 30-45°C;

[0023] (2) Adjust the stirring frequency to 200-300r / min, add 20-30 parts of water-based polyurethane acrylic resin and 25-30 parts of water-based acrylated acrylic resin into the reactor, adjust the stirring frequency to 1000-1200r / min, Stir for 20 minutes;

[0024] (3) Adjust the stirring frequency to 200-300r / min, add 3-5 parts of photoinitiator and 0.2-0.4 parts of leveling agent into the reactor, adjust the stirring frequency to 600-800r / min, and stir for 10 minutes;

[0025] (4) Adjust the stirring frequency to 200-300r / min, add 30-40 parts of photoinitiator into the reactor, adjust the stirring frequency to 600-800r / min, stir for 30 minutes, then stop stirring, and discharge for inspection.

Embodiment 1

[0027] A water-based UV-curable BMC high-temperature-resistant coating, comprising the following components in parts by weight:

[0028] raw material Ratio / by weight Numbering Waterborne polyurethane acrylic resin 25 B-717 (6 functional resin) Water-based acrylated acrylic resin 30 LUX515 Acrylate monomer 10 Propoxylated Trimethylolpropane Triacrylate Photoinitiator 4 2-Hydroxy-2-methyl-1-phenyl-1-propanone leveling agent 0.3 BYK333 Co-solvent 5 Ethylene glycol butyl ether water 40

Embodiment 2

[0030] A water-based UV-curable BMC high-temperature-resistant coating, comprising the following components in parts by weight:

[0031]

[0032]

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Abstract

The invention belongs to the field of photo-cured coating and particularly relates to waterborne ultraviolet-cured BMC high-temperature-resistant coating. The waterborne ultraviolet-cured BMC high-temperature-resistant coating comprises, by weight, 20-30 parts of waterborne polyurethane acrylic resin, 25-30 parts of waterborne acrylic acid esterified acrylic resin, 10-15 parts of acrylate monomer,3-5 parts of photoinitiator, 0.2-0.4 part of leveling agent, 5-10 parts of cosolvent and 30-40 parts of water. The waterborne ultraviolet-cured BMC high-temperature-resistant coating has the advantages that the coating is environmentally friendly, fast in curing speed and high in construction efficiency, the adhesive force of the coating layer to a BMC base material and an aluminum-coated layer is 4-5B, the reflectivity of the coating layer after aluminum coating is not smaller than 95%, the coating layer can continuously resist high temperature of 240 DEG C for more than 8 hours after aluminum coating, the coating is high in high temperature resistance as compared with traditional oil-soluble ultraviolet-cured coating, and the coating is used for coating the BMC material of a car lamp reflector to increase car lamp brightness so as to guarantee driving safety at night.

Description

technical field [0001] The invention belongs to the field of light-curing coatings, in particular to a water-based ultraviolet light-curing BMC high-temperature-resistant coating. Background technique [0002] Due to the characteristics of fast curing speed, energy saving, high construction efficiency and high gloss of coating film, UV-curable coatings are widely used in the field of automobile lamp manufacturing. Due to the specific requirements of the application field, especially the coating of the BMC base material of the automobile lamp reflector, the film thickness is required to be extremely thin, and the high and long-term high temperature resistance requirements make the traditional UV-curable coatings unable to be used in automobiles. Coating of BMC substrates for lamp reflectors. At present, the coating of the BMC base material of the automobile lamp reflector at home and abroad is a UV-curable coating containing a large amount of organic solvents. The organic so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/14
CPCC08L2201/08C09D5/18C09D133/04C09D175/14C08L75/14C08L33/04
Inventor 陈朝岚吴玉民郭正兴吴刚强郭猛彭叶刘晓明卢礼灿
Owner YIXING HONGTAI CHEM
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