Ultraviolet light curing yaguang coating and its production thereof
An ultraviolet light and coating technology, 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 low matting resistance.
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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 The epoxy acrylate resin is a product of Italian galstaff company, the product brand is syncryl234; the polyester acrylate is a pro...
example 6-10
[0048] The following examples illustrate the coating properties provided by the present invention.
[0049] 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.
[0050] 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.
[0051] 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
Description
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