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Ultraviolet light cured elastic polyurethane acrylate flat lacquer and preparation method thereof

A polyurethane acrylate, ultraviolet light technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve problems such as low efficiency and pollution

Active Publication Date: 2014-02-05
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the aforementioned problems, the present invention introduces UV curing technology in the preparation of the elastic touch paint. The UV curing coating has the advantages of low energy consumption, low solvent volatility, fast curing speed, high production efficiency, and excellent coating performance. , can overcome the problems of low efficiency and serious pollution caused by traditional curing methods, and has received more and more attention in the current society that emphasizes efficiency and quality

Method used

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  • Ultraviolet light cured elastic polyurethane acrylate flat lacquer and preparation method thereof
  • Ultraviolet light cured elastic polyurethane acrylate flat lacquer and preparation method thereof
  • Ultraviolet light cured elastic polyurethane acrylate flat lacquer and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0046] The present embodiment to the third embodiment are UV-curable polyurethane acrylate elastic hand-feel matt paints prepared by using different PCDL as soft segments and HEMA-terminated synthetic polyurethane acrylate as the matrix resin.

[0047] Polycarbonate diol T5651 (molecular weight 1000) is used as the soft segment, IPDI is the hard segment to synthesize semi-terminated polyurethane, 26 parts of polyurethane acrylate synthesized with HEMA end-capped, mixed reactive diluent (EOEOEA 20 parts, HDDA 10 parts, TPGDA 10 parts, TMP (3EO) TA 50 parts, PET4A 10 parts) 8 parts, elastic handle filler (black) 10 parts, TS-1004 parts, photoinitiator Irgacure 1842 parts, initially dispersed with a high-speed mixer at a speed of 2000-2500r / min , Add 50 parts of butyl acetate in batches, after all the addition is finished, stir at 3500-4000r / min for 30min to obtain slurry. Films are formed on PC boards and ABS boards by a knife coating method, baked at 50°C for 20 minutes, and then ...

Embodiment 2

[0049] Polycarbonate diol T5652 (molecular weight 2000) is used as the soft segment, IPDI is the hard segment to synthesize semi-terminated polyurethane, 26 parts of polyurethane acrylate synthesized with HEMA end-capped, mixed reactive diluent (EOEOEA 20 parts, HDDA 10 parts, TPGDA 10 parts, TMP (3EO) TA 50 parts, PET4A 10 parts) 8 parts, elastic handle filler (black) 10 parts, TS-1004 parts, photoinitiator Irgacure 1842 parts, initially dispersed with a high-speed mixer at a speed of 2000-2500r / min , Add 50 parts of butyl acetate in batches, after all the addition is finished, stir at 3500-4000r / min for 30min to obtain slurry. Films are formed on PC boards and ABS boards by a knife coating method, baked at 50°C for 20 minutes, and then cured under ultraviolet light to obtain an elastic touch paint film.

Embodiment 3

[0051] Polycarbonate diol G3452 (molecular weight 2000) is used as the soft segment, IPDI is the hard segment to synthesize semi-terminated polyurethane, 26 parts of polyurethane acrylate is synthesized with HEMA end-capped, mixed reactive diluent (EOEOEA 20 parts, HDDA 10 parts, TPGDA 10 parts, TMP (3EO) TA 50 parts, PET4A 10 parts) 8 parts, elastic handle filler (black) 10 parts, TS-1004 parts, photoinitiator Irgacure 1842 parts, initially dispersed with a high-speed mixer at a speed of 2000-2500r / min , Add 50 parts of butyl acetate in batches. After all the additions are completed, stir at 3500-4000r / min for 30min to obtain slurry. Films are formed on PC boards and ABS boards by a knife coating method, baked at 50°C for 20 minutes, and then cured under ultraviolet light to obtain an elastic touch paint film.

[0052] The physical and chemical indexes of the UV-curable polyurethane acrylate elastic touch matte paint obtained in the above examples are shown in Table 1:

[0053] T...

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Abstract

The invention relates to an ultraviolet light cured elastic flat lacquer and a preparation method thereof. The flat lacquer mainly comprises matrix resin, a reactive diluent, an elastic addition agent, extinction powder, a photoinitiator and a solvent. The flat lacquer has good hand feeling and excellent chemical reagent resistance, and has good matt effect, and a trial optimum formula is available. The ultraviolet light cured elastic flat lacquer also has the '5E' advantages of photocureable coating of high curing rate, low energy consumption, high efficiency, environmental friendliness and no pollution, and the like, can be used for coating automotive trim and electronic products such as cell phones and tablet personal computers, and has wide industrial application prospect.

Description

Technical field [0001] The invention relates to the technical field of radiation curing coatings, in particular to a UV-curable polyurethane acrylate elastic hand-feeling matt paint and a preparation method thereof. The coating has excellent hand-feel and beautiful appearance, and can be used in the field of automotive interior decoration and electronic product coating. . Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life. For daily necessities, whether in appearance or touch, we are constantly pursuing a new and comfortable experience. Therefore, many high-end products of today's era have begun to attract the attention of the public with their beautiful and comfortable appearance and touch. Elastic touch paint came into being. With its beautiful appearance and comfortable human physiological touch, it has gradually gained a place in the automotive interior, electronic products and other in...

Claims

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Application Information

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IPC IPC(8): C09D175/16C09D7/12
Inventor 刘晓亚王宝清袁妍张胜文
Owner JIANGNAN UNIV