Hot-melt adhesive tape and preparation method thereof

Abstract

The invention discloses a hot melt adhesive tape and a preparation method thereof. The hot melt adhesive tape comprises a PET film layer, a vinyl chloride-vinyl acetate resin layer and a hot melt adhesive layer, the vinyl chloride-vinyl acetate resin layer is located between the PET film layer and the hot melt adhesive layer, and the hot melt adhesive layer is prepared from, by weight, polypropylene resin, dibutyl phthalate, white carbon black, zinc stearate, zinc oxide, an antioxidant, polyether polyol, a diisocyanate, a chain extension cross-linking agent, a uniform tackifier, a plasticizer, nano silicon dioxide, titanium dioxide and a flame retardant. The prepared hot melt adhesive tape is extremely small in initial adhesion, firm in heating and adhesion during use, not less than 25N / in in adhesive force, easy to adhere, good in hydrolysis resistance, not less than 150N / in in tensile strength, free of breakage, thin in thickness, longer in whole roll of adhesive tape and higher in production efficiency, and the hot melt adhesive tape is endowed with excellent oxidation resistance, high temperature resistance and the like by adding the functional filler. The production efficiency can be greatly improved and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a hot-melt adhesive tape and a preparation method thereof. Background technique [0002] With the development of the automobile and electronics industries, the application of high-performance adhesives is becoming more and more extensive. As an important variety of adhesives, hot melt adhesives have characteristics that make their functions difficult to be replaced. Hot-melt adhesive has the following advantages: (1) Hot-melt adhesive has its own softening point, and it can be used when it is heated to a certain temperature; (2) Once heated and used, hot-melt adhesive immediately exerts its invisible high adhesion, The stickers are tightly bonded and not easy to separate. [0003] Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and...

AI Technical Summary

Problems solved by technology

And in existing hot-melt adhesive tape, use PET film more as substrate layer, but the adhesive force of hot-melt adhesive layer on PET layer is often not good.