Environment-friendly impregnating resin with high heat conductivity coefficient as well as preparation method and application of impregnating resin

Abstract

The invention discloses environment-friendly impregnating resin with a high heat conductivity coefficient as well as a preparation method and application of the impregnating resin. The environment-friendly impregnating resin comprises the following components in parts by weight: 20 to 50 parts of unsaturated polyester resin; 20 to 50 parts of an environment-friendly reactive diluent; 5 to 60 parts of zirconium phosphate; 1 to 2 parts of an initiator; and 0.01 to 2 parts of an auxiliary agent. The preparation method of the environment-friendly impregnating resin comprises the following steps: S1, premixing the unsaturated polyester resin, the zirconium phosphate and the environment-friendly reactive diluent at a low speed for 10-40 minutes to obtain a premixed intermediate; and S2, dispersing the pre-mixed intermediate at a high speed for 10-40 minutes, adding an initiator and other auxiliaries, uniformly stirring, and defoaming to obtain the final impregnating resin. According to the environment-friendly impregnating resin with the high heat conductivity coefficient, by improving the filler, the heat conductivity coefficient of the environment-friendly impregnating resin is enhanced, the cost is low, and the advantages of low viscosity and high heat conductivity are achieved on the basis of guaranteeing environment friendliness.

Description

technical field [0001] The invention belongs to the field of synthetic resins, in particular to an environment-friendly impregnating resin with high thermal conductivity and its preparation method and application. Background technique [0002] At present, the main development direction of impregnating resin is environment-friendly and high-performance products. In the face of increasing performance requirements, especially heat resistance requirements, a very effective method is to increase the thermal conductivity of impregnated insulating varnish products, so as to achieve the purpose of reducing the temperature rise of electrical components. In order to improve the thermal conductivity of the impregnated resin, it is common practice to add fillers to the impregnated resin. Generally speaking, the main components of environmentally friendly thermally conductive impregnating resins include: (1) unsaturated polyester (including unsaturated polyesterimide) resin; (2) environ...

AI Technical Summary

Problems solved by technology

[0011] Third, other materials cannot be used for thermal insulati

Images