Insulating tape with high temperature resistance and preparation method thereof

Abstract

The invention discloses an insulating tape with high temperature resistance and a preparation method thereof, and the prepared insulating tape is a polyimide tape and is composed of a polyimide film and an organic silicon pressure-sensitive adhesive layer, the organic silicon pressure-sensitive adhesive layer is prepared from the following components in parts by weight: 45-90 parts of organic silicon rubber, 5-10 parts of a heat-resistant additive, 9-18 parts of an adhesion promoter, 2-4 parts of polyhedral oligomeric silsesquioxane, 1-3 parts of a catalyst and 55-100 parts of a solvent. The insulating tape prepared by the invention is different from polyimide adhesive tapes on the market, and the high temperature resistance, the electrical insulation property and the adhesive force of theinsulating tape are ensured while the manufacturing cost is reduced. The insulating tape is a polyimide adhesive tape prepared from specific components and has excellent high-temperature resistance,electrical insulation performance and adhesive force, and the prepared organic silicon pressure-sensitive adhesive layer does not contain MQ resin and is low in cost, high in cohesion and low in silicon residue.

Description

technical field [0001] The invention relates to the technical field of electrical protection materials, in particular to an insulating tape with high temperature resistance and a preparation method thereof. Background technique [0002] Insulating tape refers to the tape used by electricians to prevent leakage and insulate. It is also called insulating tape and tape. It consists of a base layer and a silicone pressure-sensitive adhesive layer. The base layer is generally made of cotton cloth, synthetic fiber fabric and plastic film, etc., and the adhesive layer is made of rubber plus tackifying resin and other compounding agents, with good viscosity and excellent insulation performance. Insulating tape has good insulation voltage resistance, weather resistance, flame retardant and other characteristics. It is suitable for wire connection and electrical insulation protection. [0003] However, with the sharp increase in electricity consumption, modern society has generally a...

AI Technical Summary

Problems solved by technology

However, if the proportion of MQ resin is directly reduced, the main performance indicators of silicone pressure-sensitive adhesives, such as peel force, initial adhesion, and holding force, will be significantly reduced.