Waterproof insulation epoxy resin composition, adhesive tape and preparation method thereof

Abstract

The invention discloses a waterproof insulation epoxy resin composition, an electrician insulation adhesive tape prepared by using the composition and a preparation method for the composition and the adhesive tape, wherein the composition comprises the following components in parts by weight: 25 to 35 parts of epoxy resin, 50 to 75 parts of modified epoxy resin, 1 to 5 parts of curing agent and 28 to 35 parts of inorganic fillers. The waterproof insulation epoxy resin composition has good flexibility, can be recovered after being cured at the high temperature, has high impact strength, stripping strength and stretch shearing strength, and has good low-temperature resistance and heat resistance; the flexibility of the composition is not influenced by the seasonal climate, so that the problem of excessively brittle in winter and excessively soft in summer in the existing products is solved; the preparation cost is low; and the finished product yield is high. The electrician insulation adhesive tape has the excellent performances of tightness, insulation, heat resistance, water prevention, high mechanical strength and good gloss, has excellent early bonding performance and restripping performance, has good bonding following characteristic, and can be widely applied in the coil winding protection and associated industries.

Description

technical field [0001] The invention relates to an insulating and waterproof epoxy resin composition, an electrical insulating tape prepared by using the composition, and a preparation method of the composition and the tape. Background technique [0002] Since the advent of epoxy resin, due to its excellent mechanical properties, electrical properties, chemical resistance, bonding properties, etc., it is widely used in various fields of national economy such as industry, agriculture, transportation, and military affairs. It is especially useful in the field of composite materials. It can be combined with reinforcing materials such as fibers and fabrics to form a multi-phase system solid material. Matching and synergy between each other present excellent new properties that the original single material did not have, so as to meet the comprehensive requirements for certain properties of the material. [0003] In recent years, people have put forward higher performance require...

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Problems solved by technology

[0005] At present, epoxy resin is used in electrical insulation tapes, and there are the following problems: the initial adhesion of the current product surface cannot meet the requirements, and the manual operation is difficult in the early stage; the product cannot be repaired after high temperature curing, and the yield is low; the flexibility of the product is greatly affected by seasonal temperature changes. Large, the product is more brittle in the cold winter, and the product is too soft in the hot summer

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