Water-based UV resin for UV-Monocoat and preparation method of UV-Monocoat

A water-based, resin-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of difficult to meet the technical requirements of dark single-coating, poor adhesion, etc., and achieve good silver powder package arrangement without affecting recoatability , The effect of convenient construction

Pending Publication Date: 2021-11-23
GUANGZHOU JOINTAS CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, water-based UV resin is difficult to meet the technical requirements of UV-Monocoat, especially the poor adhesion to composite substrates such as ABS+glass fiber, PC+glass fiber, etc., and it is even more difficult to meet the process requirements of dark monocoats. The market is more urgent to develop a UV Resins for UV-Monocoat One-Coat Waterborne Coatings

Method used

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  • Water-based UV resin for UV-Monocoat and preparation method of UV-Monocoat
  • Water-based UV resin for UV-Monocoat and preparation method of UV-Monocoat
  • Water-based UV resin for UV-Monocoat and preparation method of UV-Monocoat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of UV-Monocoat water-based UV resin A, its preparation steps are as follows:

[0042] a), preparation of epoxy acrylate E44A: equipped with reflux condenser, thermometer, dripping

[0043] Add 0.1 mol of bisphenol A epoxy resin E-44 to the four-necked flask with bucket and stirrer, and slowly add 0.2 mol of acrylic acid, 1.5 parts of N,N-dimethylaniline and 0.2 parts of p- The mixture composed of hydroxyanisole, after the dropwise addition is completed, the temperature is slowly raised to 85-90°C, and the reaction is kept for 3 hours, and then every 40 minutes

[0044] Sampling and detecting the acid value of the system, when the detected acid value is lower than 5mgKOH / g, the reaction is stopped to obtain epoxy acrylate E44A;

[0045] b), preparation of polyurethane prepolymer: add 0.2mol polyether glycol sulfonate SPPG, 0.1mol polyester in advance dehydration treatment in the four-neck flask equipped with reflux condenser, thermometer, dropping funnel and stir...

Embodiment 2

[0051] A kind of UV-Monocoat water-based UV resin B, its preparation steps are as follows:

[0052] a), preparation of epoxy acrylate E44A: equipped with reflux condenser, thermometer, dripping

[0053] Add 0.1 mol of bisphenol A epoxy resin E-44 to the four-necked flask with bucket and stirrer, and slowly add 0.2 mol of acrylic acid, 1.5 parts of N,N-dimethylaniline and 0.2 parts of p- The mixture composed of hydroxyanisole, after the dropwise addition is completed, the temperature is slowly raised to 85-90°C, and the reaction is kept for 3 hours, and then every 40 minutes

[0054] Sampling and detecting the acid value of the system, when the detected acid value is lower than 5mgKOH / g, the reaction is stopped to obtain epoxy acrylate E44A;

[0055] b), preparation of polyurethane prepolymer: add 0.2mol polyether glycol sulfonate SPPG, 0.12mol polyester of pre-dehydration treatment in the four-neck flask equipped with reflux condenser, thermometer, dropping funnel and stirrer...

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Abstract

The invention relates to a water-based UV (ultraviolet) resin for UV-Monocoat and a preparation method of the water-based UV resin. The water-based UV resin is sulfonate anionic polyurethane modified acrylate and contains eight active functional groups. The water-based UV resin disclosed by the invention can be made into water-based UV-Monocoat with aluminum paste, transparent color paste, a delustering agent, a photoinitiator, an auxiliary agent and water. A paint film has excellent adhesive force, wear resistance, alcohol resistance, boiling resistance, flexibility, scratch resistance, hand perspiration resistance, high temperature and high humidity resistance, pollution resistance, aging resistance, adhesion resistance and skin feeling, the metal feeling of the paint film is strong, the recoatability is not influenced, and the paint film is safe and environment-friendly. The water-based UV resin can be used for primary coating on the surfaces of plastic substrates such as ABS (acrylonitrile butadiene styrene), PC (polycarbonate), PET (polyethylene terephthalate), ABS+PC, ABS+glass fiber, PC+glass fiber and the like of pen televisions, mobile phones, mice, keys, household appliances, switches, packaging materials, automotive upholstery and the like, and can also be used for surface coating on primer or powder primer of various metal alloy substrates.

Description

technical field [0001] The invention relates to a water-based UV resin, in particular to a UV-Monocoat water-based UV resin and a preparation method thereof, belonging to the technical field of UV resins. Background technique [0002] UV curing has the advantages of fast response, room temperature operation, low energy consumption, no solvent and less pollution. Light curing technology has been widely used in printing, packaging, advertising, building materials, decoration, electronics, communications, computers, home furnishings, etc. Shops, automobiles, aviation, aerospace, instrumentation, sports, health and many other industries. [0003] According to TrendForce, global notebook shipments will exceed 200 million units for the first time in 2020, with an annual growth rate of 22.5%. In 2021, global notebook shipments are expected to reach 217 million units. 3C products such as computers, communications and consumer electronics have higher requirements for anti-corrosion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/12C08G18/66C08G18/50C08G18/42C08G18/67C08G18/34C09D175/16
CPCC08G18/12C08G18/6625C08G18/5072C08G18/4238C08G18/4236C08G18/4018C08G18/672C08G18/6705C09D175/16C08G2150/00C08G18/348
Inventor 许钧强齐俊胜
Owner GUANGZHOU JOINTAS CHEM
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