UV photo-curing elastic self-repairing brightening paint composition

A brightening coating, self-healing technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problem of not showing elastic self-healing performance and scratch resistance performance, no mention of brightening film coating, process complex problems, to achieve the effects of excellent substrate adhesion, excellent wear resistance and scratch resistance, and simple preparation conditions

Inactive Publication Date: 2015-09-02
SHANGHAI WEIKAI CHEM +1
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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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  • UV photo-curing elastic self-repairing brightening paint composition
  • UV photo-curing elastic self-repairing brightening paint composition
  • UV photo-curing elastic self-repairing brightening paint composition

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0039] Synthesis Example 1 This example relates to the synthesis of a trifunctional elastic urethane acrylate A with a hydroxyl group in the side chain

[0040] To a 100 ml four-neck flask equipped with dry nitrogen, mechanical stirring, condenser, thermometer and oil bath heating, add PPG600 (30 g, 0.05 mol) after vacuum dehydration at 100 ° C, and then add hexamethylene di Isocyanate (HDI, 18.7 g, 0.11 mol) and dimethylol propionic acid (DMPA, 0.75 g, 0.0056 mol) were heated up to 75-80°C and reacted for 3 hours. Then the temperature was lowered to 50-55° C., p-hydroxyanisole (0.19 g) and hydroxyethyl acrylate (HEA, 12.90 g, 0.11 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, 1.58 grams, 0.011 moles) and catalyst benzyltriethylammonium bromide (0.064 grams), heat up to 90-95 ° C, react for 2-3 hours, TLC analysis to form End the reaction after the g...

Embodiment 1～5

[0052] Examples 1 to 5 respectively provide a UV-curable elastic self-repairing coating composition, and the corresponding raw material components, parts by weight and corresponding performance tests of each composition are shown in Table 1;

[0053] 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.

[0054] 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 phenylthioacrylate, ethoxylated phenoxyacrylate, o-phenylphenethoxyethylacrylate, 2-(p-cumyl-phenoxy)- One or more of hexyl acrylate, 2-hydroxy-3-phenylphenethoxypropyl acrylate, benzyl acrylate, and benzyl methacrylate. The difunctional ac...

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Abstract

The invention provides a UV photo-curing elastic self-repairing brightening paint composition. The paint composition comprises the following ingredients in parts by weight: 10 to 70 parts of elastic photo-curing resin, 10 to 50 parts of photopolymerization monomer, 2 to 5 parts of photoinitiator and 0.05 to 1 part of additive. The UV photo-curing elastic self-repairing brightening paint composition can be smeared on an optical PET plastic base material; after being cured by ultraviolet light, a coating is excellent in elasticity and also good in attachment force, wear resistance and scratch resistance.

Description

technical field [0001] The invention belongs to the technical field of ultraviolet curing coatings, in particular to a UV curing elastic self-repairing brightening coating composition. Background technique [0002] As an important accessory and brightness source of LCD display, backlight module plays a very important role in the brightness of LCD display. 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 production process, especially ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C08G18/67C08G18/48C08G18/34
CPCC08G18/348C08G18/4825C08G18/6692C08G18/672C08G18/831C08L2205/03C09D175/14C08L83/04C08K5/13
Inventor 虞明东王艳梅牛辉楠王晨陈磊
Owner SHANGHAI WEIKAI CHEM
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