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High-wettability environment-friendly three-proofing adhesive and preparation method thereof

A three-proof adhesive and wettability technology, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve the problems of poor wettability, shrinkage, etc., and achieve low surface tension and high cross-linking density , fast moisture curing effect

Pending Publication Date: 2022-03-11
YANTAI SEAYU NEW MATERIALS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high wettability environmentally friendly three-proof adhesive and its preparation method, to solve the problem of shrinkage of traditional UV-cured solvent-free and environmentally friendly three-proof adhesives on circuit boards with low surface energy due to poor wettability.

Method used

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  • High-wettability environment-friendly three-proofing adhesive and preparation method thereof
  • High-wettability environment-friendly three-proofing adhesive and preparation method thereof
  • High-wettability environment-friendly three-proofing adhesive and preparation method thereof

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Experimental program
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Embodiment 1

[0046]Accurately weigh various raw materials according to the number of parts in the formula in Table 1. According to parts by weight, 50 parts of self-made UV and moisture double-cured acrylate, 15 parts of isobornyl methacrylate, 16 parts of tetrahydrofuran acrylate, 8 parts One part of 2-phenoxyethyl acrylate, 2.5 parts of leveling and wetting agent BYK333, 0.1 part of polymerization inhibitor p-benzoquinone, and 1.5 parts of coupling agent KH570 were added to the mixer in sequence, and the temperature was controlled at 20-30°C. The condition is -0.1~-0.08MPa, stir at 800 rpm for 1 hour, until the stirring is uniform, and the nitrogen pressure is released; then 1.9 parts of photoinitiator 184, 1 part of photoinitiator TPO, 2.5 parts of photoinitiator LTM, 1.5 Add a part of dehydrating agent Ti into the mixer after depressurization, avoid light, control the temperature at 20-30°C, vacuum condition is -0.1-0.08MPa, stir at 800 rpm for 1 hour until the stirring is uniform, and ...

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Abstract

The invention discloses a high-wettability environment-friendly three-proofing adhesive and a preparation method thereof, and belongs to the field of adhesives. A self-made ultraviolet light and moisture dual-curing organosilicon acrylic prepolymer is synthesized, and the molecular structure of the prepolymer has two double-bond groups and two isocyanate groups, so that the resin can be subjected to rapid cross-linking polymerization reaction under UV and moisture conditions respectively to form a compact adhesive layer, and the problem of ultraviolet light and moisture dual curing is solved. According to the present invention, the polysiloxane is introduced into the main chain of the prepolymer, such that the prepared three-proofing adhesive has low surface tension, and the silicon-oxygen bond in the main chain provides excellent flexibility so as to provide excellent high and low temperature impact resistance.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a highly wettable and environmentally friendly three-proof adhesive and a preparation method thereof. Background technique [0002] As electronic products gradually turn to miniaturization, integration, and multi-function, the electronic assembly industry is also developing at a high speed, and the requirements for the safety performance and reliability of assembled products are also getting higher and higher, especially for printed circuit boards. Devices are more and more widely used in daily life, so consumers are paying more and more attention to product quality and reliability. mentioned and valued. [0003] At present, the most widely used solvent-based conformal paint in the market has the characteristics of cheap price, fast curing time, excellent leveling and wetting performance, good compatibility, and easy repair. However, in recent years, the requirements for environmental ...

Claims

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Application Information

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IPC IPC(8): C09J175/14C09J11/06C08G18/67C08G18/61
CPCC09J175/14C09J11/06C08G18/672C08K5/5425C08G18/61Y02E10/50
Inventor 李不悔李峰贺国新张利文
Owner YANTAI SEAYU NEW MATERIALS CORP LTD
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