Adhesive, preparation method and application thereof and preparation method of adhesive tape

By using an adhesive synthesized with an acrylate mixture with a boiling point of 160-190°C and an azo-based initiator, the control problems of existing environmentally friendly tapes in terms of VOC and odor properties are solved, and the low VOC and low odor properties of the tape are achieved, and the high temperature stability and cohesion strength are improved.

CN119709062APending Publication Date: 2025-03-28BYD CO LTD
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Patent Information

Application Number
CN202311259370.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-26
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing environmentally friendly tapes have problems in VOC and odorability. Especially in the case of high temperature or long-term use, the absorption effect of the graphite layer will fail, and the odorability defects of oily glue cannot be fundamentally solved.

Method used

An acrylate mixture with a boiling point of 160-190°C was used as a soft monomer, and an azo initiator was used as an initiator, and a hard monomer, functional monomer and solvent were used to synthesize the adhesive. During the preparation process, the adhesive is reacted under oxygen isolation conditions to reduce the residue of small molecules, and the cohesive strength and high temperature stability of the colloid are improved through grafting reactions.

Benefits of technology

The tape is low VOC and low odor properties are achieved, the high temperature stability and cohesion strength of the colloid are improved, the colloid is avoided decomposition and small molecules are generated at high temperatures, and the removal effect of diluents and residual small molecules during coating is enhanced.

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Abstract

The invention relates to the field of adhesives, and discloses an adhesive, a preparation method and application thereof, and a preparation method of an adhesive tape. The adhesive comprises the following raw material components: a soft monomer, a hard monomer, a functional monomer, an initiator and a solvent, the soft monomer adopts an acrylate mixture with a boiling point of 160-190 DEG C, and the initiator is an azo initiator. The method comprises the following steps: mixing a soft monomer, a hard monomer, a part of functional monomer, a first part of initiator and a first part of solvent for reaction I under an oxygen isolation condition to obtain a reaction liquid I; mixing the rest of functional monomers, a second part of initiator, a second part of solvent and the reaction liquid I for reaction II to obtain reaction liquid II; and mixing a third part of initiator, a third part of solvent and the reaction liquid II for reaction III. The adhesive not only can meet the mechanical property of the adhesive tape, but also has the advantages of small residual amount of inert small-molecular organic matters, less chain transfer, great improvement of the odor of the adhesive tape and reduction of VOC (Volatile Organic Compounds).
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Citation Information

Patent Citations

  • Adhesive tape composition and automotive interior double-side adhesive tape prepared therefrom

    CN107011825A