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A kind of high anti-scratch self-repair brightening paint composition

A brightening coating and self-repairing technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve problems that do not reflect elastic self-repairing performance and scratch resistance of sharp objects, and do not mention brightening film coatings and processes Complicated problems, to achieve good adhesion and wear resistance, good elastic self-healing, simple preparation conditions

Inactive Publication Date: 2017-07-14
SHANGHAI WEIKAI CHEM +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of inorganic particles, the system has dispersion stability problems
In addition, the performance of the coating composition does not reflect the elastic self-healing performance and the scratch resistance of sharp objects except for the abrasion resistance of the paper tape.
Moreover, the composition contains an organic solvent, which has the disadvantages of environmental protection, production safety, complicated process and high cost.
In addition, the paint is also only suitable for ordinary occasions, and it is not mentioned that it is suitable for brightness-enhancing film paint

Method used

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  • A kind of high anti-scratch self-repair brightening paint composition
  • A kind of high anti-scratch self-repair brightening paint composition
  • A kind of high anti-scratch self-repair brightening paint composition

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0043] Synthesis Example 1 This example relates to a trifunctional elastic urethane acrylate A with a hydroxyl group in the side chain. Polycaprolactone diol 500 (PCL500, starting with diethylene glycol, hydroxyl value 211.9 mg KOH / g, 25.0 g, 0.047 mol) after vacuum dehydration at 100°C, and then adding hexamethylene diol Isocyanate (HDI, 18.8 g, 0.11 mol) and dimethylolpropionic acid (DMPA, 0.55 g, 0.0025 mol) were heated up to 80°C and reacted for 3 hours. Then the temperature was lowered to 50-55° C., p-hydroxyanisole (0.18 g) and hydroxyethyl acrylate (HEA, 14.44 g, 0.12 mol) were added, and the mixture was reacted for 2 hours. TLC analysis showed that the reaction of hydroxyethyl acrylate was complete. Then add glycidyl methacrylate (GMA, 0.35 grams, 0.0025 moles) and catalyst benzyltriethylammonium bromide (0.059 grams), heat up to 90 ° C, react for 2 to 3 hours, TLC analysis to methacrylic acid After the glycidyl ester has reacted, the reaction is terminated. A 100% t...

Embodiment 1～5

[0057] Examples 1 to 5 respectively provide a high-scratch-resistant self-repairing brightening coating composition, and the corresponding raw material components, parts by weight and corresponding performance tests of each composition are shown in Table 1;

[0058] The raw material components corresponding to each example were mixed according to their parts by weight, dispersed at a medium speed for 2 hours, and filtered to obtain the corresponding elastic self-healing UV photocurable coating composition.

[0059] The substances listed in Table 1 are representative of the aforementioned various technical solutions, and are not limited to the substances listed in the table during actual implementation. The monofunctional acrylate can also be selected from 2-phenoxy ethyl acrylate, ethoxylated phenoxy acrylate, o-phenylphenethoxy ethyl acrylate, 2-(to-cumyl-benzene One or more of oxy)-hexyl acrylate, 2-hydroxy-3-phenylphenethoxypropyl acrylate, benzyl acrylate, and benzyl metha...

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Abstract

The invention relates to a high-scrape-resistant self-repairing brightening coating composition which includes following components, by weight, 10-70 parts of photo-curable resin, 10-50 parts of a photo-polymerization monomer, 2-5 parts of a photo initiator and 0.05-1 part of an additive. The high-scrape-resistant self-repairing brightening coating composition can be used for coating an optical-grade PET plastic base material, and is excellent in scrape-resistant performance after UV curing. Meanwhile, the coating composition is excellent in rebounding performance and is excellent in adhesion on the base material.

Description

technical field [0001] The invention belongs to the technical field of ultraviolet curing coatings, and in particular relates to a highly scratch-resistant self-repairing brightening coating composition. Background technique [0002] As an important accessory of LCD display and the source of brightness, the backlight module plays a very important role in the brightness of LCD. People try various ways to improve LCD display brightness from the aspect of backlight module. Adding a brightness enhancing film between the light guide plate and the lower polarizer is one of the methods. [0003] Through the molding process, the special prismatic structure on the mold is transferred to the substrate to obtain a brightness enhancing film. Among them, the performance of the brightness enhancement film coating can determine the quality of the brightness enhancement film performance, which is the key to the production of the brightness enhancement film. In the assembly line productio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C08G18/67C08G18/66C08G18/42C08G18/34
Inventor 虞明东王艳梅牛辉楠王晨陈磊
Owner SHANGHAI WEIKAI CHEM
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