Hot-pressing adhesive tape capable of insulating heat and retarding flame in blade battery and preparation method of hot-pressing adhesive tape

Abstract

The invention discloses a heat-insulating and flame-retardant hot-pressing adhesive tape in a blade battery and a preparation method thereof, and belongs to the technical field of adhesive tapes. The adhesive tape disclosed by the invention is prepared by mixing polyester, epoxy resin, acrylate copolymer resin, flame retardant, butanone and curing agent, coating, drying and curing, and the adhesive tape is convenient in production process and high in automatic production efficiency. The aerogel wrapped by the adhesive tape can be completely bonded within 8 seconds through hot pressing, the product performance requirement is met, when a combustion experiment is applied to the aerogel, the surface silicon dioxide coating can slowly form powder silicon attached to the surface of the aerogel, the powder silicon and the aerogel resist high temperature together without damaging the aerogel, and the heat insulation performance of the aerogel is improved by 20 degrees or above. The adhesive tape can be subjected to adhesive-to-adhesive hot pressing and opposite pasting after being heated, has super-strong adhesion with ceramics, rubber and silica gel, has excellent high-temperature and high-humidity resistance, high and low temperature impact resistance and electrochemical resistance, and is good in flame retardance, heat insulation and insulation performance and low in storage requirement.

Description

technical field [0001] The invention belongs to the technical field of adhesive tapes, and in particular relates to a hot-pressed adhesive tape with heat insulation and flame retardancy in a blade battery and a preparation method thereof. Background technique [0002] At present, in the blade battery, when the ordinary epoxy system hot-pressing tape wraps the aerogel insulation cotton, it needs to be hot-pressed for more than 16 seconds to bond, and the construction time is long and it is easy to wrinkle and deform; and the tape produced by the ordinary process wraps the ultra-thin aerogel insulation cotton After glue, when the aerogel is subjected to the thermal insulation combustion experiment, the polyester film will rapidly burn and melt into a liquid to block the nano-pores incorporated into the aerogel, which will seriously damage the thermal insulation function of the aerogel, and the existing hot pressing The combination of the tape and the aerogel results in a reduc...

AI Technical Summary

Problems solved by technology

[0002] At present, in the blade battery, it takes more than 16 seconds to heat and press for more than 16 seconds to bond when the ordinary epoxy system heat-pressing tape wraps the airgel insulation cotton, and the construction time is long and it is easy to wrinkle and deform; and the tape produced by the ordinary process is wrapped with ultra-thin airgel After gluing, when the aerogel is subjected to heat insulation combustion experiments, the polyester film will burn rapidly and melt into a liquid to block the nanopores of the airgel, which will seriously damage the heat insulation function of the aerogel, and the existing hot-pressed Adhesive tape combined with airgel leads to reduced thermal insulation properties