▎ 摘　　要

NOVELTY - Removable thermal adhesive tape, comprises substrate layer, vulcanizing layer coated on lower surface of substrate layer, adhesive layer coated on upper surface of first release film, thermal conducting layer, thermal reducing adhesive layer, and second release film are sequentially arranged from top to bottom. The substrate layer is bonded on lower surface of first release film through adhesive layer and first release film. The first release film and the second release film are connected by thermal-reducing adhesive layer. The thermal reducing adhesive layer comprises 100 pts. wt. acrylic ester copolymer, 1-10 pts. wt. crosslinking curing agent, 5-15 pts. wt. foaming agent, 0.2-0.8 pts. wt. white carbon black, 20-60 pts. wt. organic solvent and 1-5 pts. wt. color paste, the acrylate copolymer has average molecular weight of 5000-500000, and is polymer formed by monomer containing at least one acrylate group in one molecule as main constituent monomer. USE - Used as removable thermal adhesive tape. ADVANTAGE - The removable thermal adhesive tape has good initial viscosity and high holding power at low temperature, easy to remove at high temperature without leaving adhesive residue. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for (i) taking monomers containing acrylic group according to mass ratio, carrying out initiator polymerization to obtain acrylate copolymer, (ii) taking certain amount of white carbon black, drying in drying oven at 70-80degrees Celsius for 4-6 hours, taking out and grinding into uniform particle size of 30-50 microm with grinder to obtain pre-treated white carbon black, (iii) stirring acrylate copolymer and silica, mixing evenly, then diluting the cross-linking curing agent with organic solvent to the required solid content, then pouring the diluted cross-linking curing agent solution, foaming agent and color paste into the above mixture in turn, and carrying out stirring until uniform to obtain thermal reducing adhesive layer, (iv) uniformly coating one side of substrate layer with composite vulcanizing agent to obtain vulcanized layer with thickness of 0.1-3 microm, and then drying, and (v) coating the mixture of pressure-sensitive adhesive and high thermal conductivity filler evenly on one side of first release film, drying and curing, and then compounding with the substrate layer obtained in step (iv), coating the thermally conductive graphene evenly on the other side of first release film, drying and curing, coating thermal-reducing adhesive on one side of the second release film, drying and curing and then compounding with the first release film to obtain final product. DESCRIPTION OF DRAWING(S) - The drawing shows a removable thermal adhesive tape and the preparation method of the structure schematic diagram. Base material layer (1) Tert-butyl peroxy (2) Adhesive layer (3) First release film (4) Thermal conducting layer (5) Thermal-reducing adhesive layer (6) Second release film (7)