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Ultraviolet light curing yaguang coating and its production thereof

A technology of ultraviolet light and paint, applied in the direction of coating, can solve the problems of easy to produce hard precipitation and insufficient adhesion, and achieve the effect of good matting effect, enhanced paint film adhesion, and time delay.

Active Publication Date: 2008-09-03
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, it overcomes the shortcomings of insufficient adhesion of the existing UV-curable matte paint film and is prone to hard deposits, and provides a UV-curable matte paint with strong adhesion and is not easy to produce hard deposits and its preparation method.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of the coating provided by the invention comprises mixing the main resin, diluent and photoinitiator, completely dissolving the photoinitiator, and uniformly dispersing the main resin in the diluent, adding or not adding auxiliary agents , add matte powder, mix evenly, filter the obtained slurry, wherein, when the main resin, diluent and photoinitiator are mixed, pure acrylate is also added, and the amount of pure acrylate added is such that the paint contains, the total amount of paint is Basis, 1-20% by weight pure acrylate.

[0031] According to the preparation method of the coating provided by the present invention, the mixing of the main resin, diluent, pure acrylate and photoinitiator can be carried out simultaneously or step by step. Preferably, the photoinitiator is first mixed with the diluent to make The photoinitiator is fully dissolved, then add the main resin and pure acrylate and mix evenly, then add or not add additives and matte po...

Embodiment 1-5

[0039] This example illustrates the coating provided by the invention and its preparation method.

[0040] (1) Mix the photoinitiator with the diluent and stir until fully dissolved; (2) Add the main resin, pure acrylate and photoinitiator, heat up to 45°C, and mix well; (3) With or without additives, Add matte powder and mix evenly; (4) lower the temperature and filter the obtained slurry to remove the residue therein to obtain the coatings T1-T5 provided by the present invention. Table 1-2 shows the dosage of each substance, and Table 3 shows the composition of T1-T5.

[0041] In Table 1 and Table 2, the aliphatic urethane acrylate resin is a product of Sartomer Company in the United States, and the product brand is CN965; the pure acrylate is a product of Taiwan Eternal Company, and the product brand is 6530B-40; the D of matte powder OK607 50 4.5 microns; epoxy acrylate resin is the product of Italian galstaff company, the product brand is syncry1234; polyester acrylate i...

example 6-10

[0052] The following examples illustrate the coating properties provided by the present invention.

[0053] The coatings T1-T5 obtained in Examples 1-5 were sprayed on the plastic casing, dried at 50° C. for 15 minutes, and irradiated with ultraviolet light for 25 seconds to obtain a cured film layer with a thickness of 9 microns. The performance of the cured film layer was tested, and the results are shown in Table 4.

[0054] Wherein, the wear resistance measurement uses the 7-IBB type RCA abrasion meter produced by U.S. Norman Instrument and Equipment Company, under the effect of 175 grams of force, grinds the sprayed paint film, and when the paint film is exposed to the substrate, the number of times the rubber wheel rotates.

[0055] For the determination of adhesion, draw 100 square grids of 1 mm × 1 mm on the sprayed surface with a scratcher, and glue them on the square grids with a model 600 transparent tape produced by 3M Company of the United States, leaving no gaps,...

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Abstract

A ultraviolet curing glazing coating and its production are disclosed. The coating consists of host resin, diluent, glazing powder, light initiating agent or assistants. It is characterized that it contains pure acrylic ester 1-20wt%. It has better adhesion and no hard deposit.

Description

technical field [0001] The present invention relates to a UV curable paint and its preparation method, more specifically to a UV matt curable paint and its preparation method. Background technique [0002] UV-curable coating is a kind of photo-curable coating developed in recent years. Compared with traditional photo-curable coating, UV-curable coating has a higher solid content, so the production efficiency is high. At the same time, its drying time is also shorter. [0003] Existing UV-curable coatings contain film-forming substances, diluents and photoinitiators, and sometimes also contain additives such as leveling agents, defoamers, lubricants, and wear-resistant agents. Wherein, the diluent is an acrylate monomer with a functionality of 1-5 or more or a mixture of the acrylate monomer with a functionality of 1-5 or more and an organic solvent. The film-forming substance includes a main body resin and an acrylate monomer having a functionality of 1-5 or more as a dilu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D201/00C09D5/00
Inventor 谭伟华刘会权刘赵生
Owner BYD CO LTD
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