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Ultraviolet curing adhesive for insulation protection, preparation method and application thereof

A technology for insulating protection and curing adhesives, applied in the field of curing adhesives, can solve the problems of low viscosity, low surface energy, and easy sagging of curing adhesives, and achieve the effects of simple preparation process, good processing performance, and avoiding the risk of aluminum exposure

Inactive Publication Date: 2019-01-22
广东阿普邦新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the viscosity of the cured glue is small, it is easy to hang, and the shape and thickness of the cured glue on the edge of the aluminum-plastic film cannot be controlled
[0003] In addition, silicone materials have many excellent properties due to their unique molecular structure, such as high and low temperature resistance, weather resistance, aging resistance, good electrical insulation, low surface energy, etc. UV curing technology has high efficiency, less pollution, Low energy consumption, but there is no technical solution to introduce UV-curable double bonds into silicone molecular chains to make highly flexible UV-curable adhesives for insulation protection in the prior art

Method used

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  • Ultraviolet curing adhesive for insulation protection, preparation method and application thereof
  • Ultraviolet curing adhesive for insulation protection, preparation method and application thereof
  • Ultraviolet curing adhesive for insulation protection, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In a 500 ml glass four-neck flask equipped with a stirrer and a condenser, first take 140 grams of hydroxyl-terminated polydimethylsiloxane with a molecular weight between 1000 and 1500 and an average functionality of 2, and pump it at 105 ° C. Remove water under vacuum for 3 hours, then cool it down to 45°C, stop vacuuming, add 16.4 grams of methane dicyclohexyl diisocyanate, and stir rapidly. After the temperature is stable, slowly raise the temperature and control the temperature at 80°C for 2.5 hours. After the reaction is complete, cool down to 45°C, add 5.3 grams of hydroxyethyl acrylate, and add 0.05 grams of hydroquinone as a polymerization inhibitor, slowly raise the temperature to 75°C and react for 2.5 hours, and vacuum degas for 0.5 hours after the reaction is complete. The obtained silicone modified acrylate is sealed and protected from light for future use.

[0030] Accurately weigh 78.6 grams of the above-mentioned silicone modified acrylate, 15 grams of ...

Embodiment 2

[0032] In a 500 ml glass four-neck flask equipped with a stirrer and a condenser tube, first take 185 grams of hydroxyl-terminated polydimethylsiloxane with a molecular weight between 1500 and 1800 and an average functionality of 2.5, and pump it at 115 ° C. Remove water in vacuum for 2 hours, then cool it down to 40°C, stop vacuuming, add 21.1 grams of methane dicyclohexyl diisocyanate, stir rapidly, after the temperature is stable, slowly raise the temperature and control the temperature at 75°C for 3 hours, After the reaction is complete, the temperature is lowered to 40°C, 6.4 grams of hydroxyethyl methacrylate and 5.0 grams of hydroxypropyl acrylate are added, and 0.08 grams of polymerization inhibitor p-hydroxyanisole is added, and the temperature is slowly raised to 70°C for 3 hours. After the reaction was complete, vacuum degassed for 0.5 hours, and the material was obtained to obtain a silicone-modified acrylate, which was sealed and protected from light for future use...

Embodiment 3

[0035] In a 500 ml glass four-neck flask equipped with a stirrer and a condenser, first take 215 grams of hydroxyl-terminated polydimethylsiloxane with a molecular weight between 1500 and 1800 and an average functionality of 3, and pump it at 100 ° C. Remove water under vacuum for 4 hours, then cool it down to 50°C, stop vacuuming, add 23.7 grams of methane dicyclohexyl diisocyanate, and stir rapidly. After the temperature is stable, slowly raise the temperature and control the temperature at 85°C for 2 hours. After the reaction is complete, cool down to 50°C, add 4.3 grams of hydroxyethyl acrylate, 2.5 grams of hydroxypropyl methacrylate and 5.7 grams of hydroxypropyl acrylate, and add 0.09 grams of polymerization inhibitor p-hydroxyanisole, slowly Raise the temperature to 80°C and react for 2 hours. After the reaction is complete, vacuum degassing for 0.5 hours. The material is taken out to obtain the silicone-modified acrylate, which is sealed and protected from light for fu...

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Abstract

The invention discloses an ultraviolet curing adhesive for insulation protection, a preparation method and an application thereof. The ultraviolet curing adhesive is composed of the following components by weight percentage: 50% to 90% of organosilicon modified acrylate, 5% to 35% of an acrylate reactive diluent, 1% to 8% of a photoinitiator, and 0% to 10 % of an auxiliary agent; the organosiliconmodified acrylate is synthesized from hydroxyl terminated polydimethylsiloxane, methylene dicyclohexyl diisocyanate, hydroxy acrylate and a polymerization inhibitor. In addition, the invention also discloses a preparation method of the ultraviolet curing adhesive and an application thereof. The viscosity of the ultraviolet curing adhesive reaches 10000 mPa or more, the ultraviolet curing adhesiveis not easy to sag, and the UV-curable double bonds are introduced into the organosilicon molecular chain, the high-flexibility ultraviolet curing adhesive is prepared, the insulating electrical strength of the ultraviolet curing adhesive after UV curing reaches 20KV / mm or more, and the ultraviolet curing adhesive can be applied to the insulation protection of bare electrical core aluminium edgeof a soft-packed secondary lithium battery.

Description

technical field [0001] The invention relates to a curing glue, and more specifically relates to an ultraviolet curing glue for insulating and protecting the aluminum edge of a bare cell of a soft-packed secondary lithium battery, a preparation method and an application thereof. Background technique [0002] The Chinese patent CN105826612A of Ningde New Energy Technology Co., Ltd., titled "A Secondary Lithium Battery Edge Banding Method", discloses a secondary lithium battery edge banding method. The edge banding glue is printed out by a 3D printer to wrap the edge of the battery , to play the role of insulation protection, the edge sealing adhesive is light-curing adhesive or heat-curing adhesive, the viscosity is 200mPa. The glue is cured at 160-180 degrees for 12-20 minutes. However, the viscosity of the cured glue is low, it is easy to sag, and the shape and thickness of the cured glue at the edge of the aluminum-plastic film cannot be controlled. [0003] In addition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06C08G18/67C08G18/61H01M2/08H01M10/0525H01M50/105H01M50/184H01M50/193
CPCH01M10/0525C09J11/06C09J175/14C08G18/61C08G18/672H01M50/183Y02E60/10
Inventor 邱湖平
Owner 广东阿普邦新材料科技股份有限公司
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