Ultraviolet light curing glue with low volatile content

A technology with low volatile matter and ultraviolet light, applied in adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve problems affecting product performance, easy to volatilize, incomplete polymerization, etc., and achieve improved crosslinking Density, high bonding reliability, and the effect of improving the reaction conversion rate

Active Publication Date: 2016-07-06
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, UV-curable adhesives also have their own limitations. Conventional UV-curable adhesives have obvious limitations in applications that require low volatile content. Because the curing mechanism of acrylate system UV-curable adhesives is free radical polymerization, free radicals The polymerization itself is often incomplete, and there will be a large amount of residual unpolymerized monomers. The molecular weight of these unpolymerized monomers is generally small, and they are easy to volatilize in high temperature environments. The volatilized small molecular substances may cause pollution to components It may even affect the performance of the product; therefore, conventional UV-curable adhesives cannot be applied in occasions requiring low volatile matter content, and the UV-curable adhesive of the present invention can solve this problem

Method used

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  • Ultraviolet light curing glue with low volatile content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Accurately weigh the following raw materials: polyester urethane acrylate resin, 40g; Changxing Chemical’s 6195-100, 10g; PETMP, 10g; THFA, 30g; photoinitiator 184, 3g; photoinitiator TPO, 1g; Put the components into the dual planetary power mixing mixer in turn, evacuate to -0.08MPa, stir at 500 rpm for 2 hours, stir evenly, let it air naturally to room temperature, and obtain UV-curable glue, which can be sealed and packaged.

Embodiment 2

[0020] Accurately weigh the following raw materials: polyester urethane acrylate resin, 35g; Changxing Chemical’s 6196-100, 15g; TEMPIC, 5g; IBOA, 30g; photoinitiator 184, 1g; photoinitiator 1173, 1g; Put the components into the dual planetary power mixing mixer in turn, evacuate to -0.05MPa, stir at 750 rpm for 1 hour, stir evenly, let it air naturally to room temperature, and obtain UV-curable glue, which can be sealed and packaged.

Embodiment 3

[0022] Accurately weigh the following raw materials: polyester polyurethane acrylate resin, 50g; Changxing Chemical’s DR-U195, 5g; TMTP, 15g; LA, 15g; IBOA, 10g; Photoinitiator 1173: 3g; Photoinitiator 819: 2g , add the above-mentioned components into the double planetary power mixing mixer in turn, vacuumize to -0.06MPa, stir at 700 rpm for 1.5 hours, stir evenly, let it air naturally to room temperature, and obtain UV-curable glue, seal Just pack it.

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Abstract

The invention discloses ultraviolet light curing glue with low volatile content. The ultraviolet light curing glue consists of the following raw materials in percentage by weight: 30-60% of polyester type urethane acrylate, 5-15% of hyperbranched urethane acrylate, 5-15% of thiol, 25-40% of an acrylate monomer and 1-7% of a photoinitiator. The ultraviolet light curing glue has relatively low volatile content, can be used in situations with low volatile content requirements, and is excellent in curing property and high in adhesion reliability and wide in application range.

Description

technical field [0001] The invention belongs to the field of light-curing materials, and relates to an ultraviolet light-curing adhesive with low volatile matter content and a preparation method thereof, and is suitable for occasions requiring low volatile matter content. Background technique [0002] Light-curing materials have been widely studied due to their outstanding advantages such as fast curing speed, environmental friendliness, low energy consumption, and no solvent volatilization, and they are rapidly promoted in various industries. However, UV-curable adhesives also have their own limitations. Conventional UV-curable adhesives have obvious limitations in applications that require low volatile content. Because the curing mechanism of acrylate system UV-curable adhesives is free radical polymerization, free radicals The polymerization itself is often incomplete, and there will be a large amount of residual unpolymerized monomers. The molecular weight of these unpol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06C08G18/67C08G18/42
CPCC08G18/672C08L2205/025C09J11/06C09J175/14C08L75/14C08K5/37C08G18/42
Inventor 潘光君王建斌陈田安解海华王博
Owner YANTAI DARBOND TECH
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