A kind of screen printing adhesive and preparation method thereof

By using specific monomers and nanofillers in screen printing adhesives, combined with ultraviolet curing technology, the shortcomings of existing adhesives in electrical conductivity, high temperature resistance, humidity resistance and chemical corrosion resistance are solved, and the high light transmission, conductive thermal conductivity and bonding performance are improved, which is suitable for printed circuit board manufacturing.

CN119752362APending Publication Date: 2025-04-04SHENZHEN NIKTO TAPE NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202410703686.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-06-03
Publication Date
2025-04-04

AI Technical Summary

Technical Problem

The existing screen printing adhesives have shortcomings in electrical conductivity, high temperature resistance, humidity resistance and chemical corrosion resistance in the electronics industry, especially in terms of high transparency, flame retardancy and stability.

Method used

Allyl phosphate monomer, polyacrylate comonomer and modified crosslinked monomer are used to combine nanotitanium dioxide particles and modified carbon nanofibers to prepare screen printing adhesives with high light transmission, good electrical and thermal conductivity and excellent bonding performance through ultraviolet curing technology.

Benefits of technology

It has achieved the improvement of the high light transmittance, electrical and thermal conductivity and adhesive properties of the adhesive, and has anti-unis light and aging resistance. It is suitable for manufacturing printed circuit boards, and has environmentally friendly and energy-saving processes.

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Abstract

The invention discloses a screen printing adhesive and a preparation method thereof. The raw materials for preparing the screen printing adhesive include: 50-80 parts of a polyacrylic acid ester copolymer monomer; 15-30 parts of an allyl phosphate monomer; 5-10 parts of a modified cross-linking monomer; 5-15 parts of a diluting monomer; 2-6 parts of an optical filler; and 10-15 parts of a modified filler. The preparation method includes: a prepolymer preparation step: reacting the polyacrylic acid ester copolymer monomer, the allyl phosphate monomer and the modified cross-linking monomer under nitrogen conditions to obtain an acrylate prepolymer; an adhesive preparation step: ultrasonically treating the acrylate prepolymer, the diluting monomer, the optical filler and the modified filler under light-proof conditions to obtain the screen printing adhesive; the screen printing adhesive has high light transmittance, good electrical and thermal conductivity and excellent bonding performance, and can be used to manufacture printed circuit boards.
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