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Hot-melt adhesive tape and preparation method thereof

A technology of hot-melt adhesive tape and hot-melt adhesive layer, applied in the direction of adhesive, heat-activated film/sheet, adhesive type, etc., can solve the problem of poor adhesion of the hot-melt adhesive layer, achieve small initial adhesion and reduce production The effect of cost and thickness

Inactive Publication Date: 2021-04-20
湖南省和祥润新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A hot-melt adhesive tape, comprising a PET film layer, a vinyl acetate resin layer and a hot-melt adhesive layer, the vinyl vinyl resin layer is located between the PET film layer and the hot-melt adhesive layer, the PET film layer thickness is 25 μm, the The thickness of the hot-melt adhesive layer is 15 μm, and the thickness of the vinyl acetate resin layer is 3 μm; the raw materials of the hot-melt adhesive layer include: 50 parts of polypropylene resin, 6 parts of dibutyl phthalate, white carbon 20 parts of black, 8 parts of zinc stearate, 3 parts of zinc oxide, 0.5 parts of antioxidant, 40 parts of polyether polyol, 8 parts of diisocyanate, 4 parts of chain-extending cross-linking agent, 2 parts of uniform tackifier, 1 part of plasticizer, 15 parts of nano-silica, 10 parts of titanium dioxide, and 3 parts of flame retardant; the polyether polyol includes polytetrahydrofuran glycol, polypropylene glycol, polyethylene glycol and tetrahydrofuran-oxypropylene copolymeri...

Embodiment 2

[0033] A kind of hot-melt adhesive tape, comprises PET film layer, vinyl acetate resin layer and hot-melt adhesive layer, described vinyl chloride resin layer is positioned between PET film layer and hot-melt adhesive layer, and described PET film layer thickness is 28 μ m, described The thickness of the hot-melt adhesive layer is 18 μm, and the thickness of the vinyl acetate resin layer is 3.5 μm; the raw materials of the hot-melt adhesive layer include: 52 parts of polypropylene resin, 6.5 parts of dibutyl phthalate, white 25 parts of carbon black, 9 parts of zinc stearate, 3.5 parts of zinc oxide, 0.8 parts of antioxidant, 42 parts of polyether polyol, 9 parts of diisocyanate, 4.5 parts of chain-extending cross-linking agent, 2.5 parts of uniform tackifier, 1.5 parts of plasticizer, 18 parts of nano silicon dioxide, 12 parts of titanium dioxide, 4 parts of flame retardant; the polyether polyol includes polytetrahydrofuran glycol, polypropylene glycol, polyethylene glycol and...

Embodiment 3

[0042] A hot-melt adhesive tape, comprising a PET film layer, a vinyl acetate resin layer and a hot-melt adhesive layer, the vinyl vinyl resin layer is located between the PET film layer and the hot-melt adhesive layer, the PET film layer thickness is 30 μm, the The thickness of the hot-melt adhesive layer is 22 μm, and the thickness of the vinyl acetate resin layer is 4 μm; the raw materials of the hot-melt adhesive layer include: 55 parts of polypropylene resin, 7 parts of dibutyl phthalate, white carbon 30 parts of black, 10 parts of zinc stearate, 4 parts of zinc oxide, 1 part of antioxidant, 45 parts of polyether polyol, 10 parts of diisocyanate, 5 parts of chain-extending cross-linking agent, 3 parts of uniform tackifier, 2 parts of plasticizer, 20 parts of nano silicon dioxide, 15 parts of titanium dioxide, 5 parts of flame retardant; Described polyether polyol comprises polytetrahydrofuran glycol, polypropylene glycol, polyethylene glycol and tetrahydrofuran-oxypropylen...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/35C09J123/12C09J175/08C09J11/04
Inventor 廖平湘
Owner 湖南省和祥润新材料有限公司
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