High-thermal conductivity nanometer diamond insulation varnish and preparation method thereof

Abstract

The invention relates to high-thermal conductivity nanometer diamond insulation varnish. The high-thermal conductivity nanometer diamond insulation varnish is prepared from 65 parts-85 parts of insulation varnish, 10 parts-30 parts of nanometer diamond, 5 parts-10 parts of hyperdispersant, 0.06 part-0.2 part of titanate coupling agent and 3.3 parts-10 parts of absolute ethyl alcohol. The high-thermal conductivity nanometer diamond insulation varnish prepared by a preparation method according to the proportioning is insulated and has good heat conduction and heat transfer property through insulation coating or by dipping in high-power density electrical equipment; the high-thermal conductivity nanometer diamond insulation varnish can be coated on the surface of a circuit board so as to enhance the heat conduction and heat dissipation capacity of the circuit board and improve the working stability of circuits; the high-thermal conductivity nanometer diamond insulation varnish can also be dipped or coated inside the high-density density electrical equipment so as to smoothly lead out heat generated inside the electrical equipment, so that the practical effect of rapidly dissipating heat or bringing out heat is achieved, and the load capacity of the electrical equipment is improved.

Description

Technical field: [0001] The invention belongs to the technical field of insulating varnish, and relates to a nano-diamond insulating varnish with high thermal conductivity and a preparation method thereof. Background technique: [0002] At present, after winding the coils of motors and transformers, it is necessary to soak the coils in insulating varnish for a period of time, and then take them out to dry or dry them; its function is to bond the coil wires and wires and other objects into a whole, so that the insulating varnish fills the coils The space between them plays the role of fixing the coil winding and conducting the heat of the coil. As an insulating varnish, if it has both insulation and high thermal conductivity, it can effectively reduce the temperature rise of the motor winding, thereby reducing the volume of the motor and increasing the output power of the motor, and can avoid the decrease in the insulation strength of the coil due to the high internal tempe...

AI Technical Summary

Problems solved by technology

Moreover, the assembly density of electronic equipment has been rapidly increased, and the volume of logic circuits and electronic components has been reduced by tens of millions of times, resulting in a sharp increase in the heat generated per unit volume of electronic equipment. If the sharply increased heat is not dissipated in time, it will lead to electronic components The temperature of the device rises, if the heat cannot be discharged in time, it will directly affect the normal operation and service life of the electronic components