| abstract |
The present application relates to the technical field of adhesive tapes, and more particularly, to an anti-aging and high temperature resistant polyimide adhesive tape and a preparation method thereof. It comprises a base layer and an adhesive layer connecting at least one side of the base layer, the adhesive layer is formed by applying an adhesive to the surface of the base layer and cured, and the base layer is prepared from the following raw materials in parts by weight: 50-80 parts of polyimide, filling 10-15 parts of modifier; filling modifier is prepared from hollow glass microspheres, silicone microspheres and adhesive in a ratio of 3-5:6-9:1 in parts by weight; the adhesive is prepared by including the following weights parts of raw materials: 12-18 parts of epoxy resin, 2-5 parts of silane coupling agent, 0.8-1.2 parts of wetting agent, 0.1-0.3 parts of anti-aging agent, 0.5-0.8 parts of nano-silica, 3 parts of cycloacetone ‑8 servings. The anti-aging and high-temperature resistant polyimide adhesive obtained by the above scheme has good high temperature resistance, anti-aging, insulation, peeling strength and the like. |