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An epoxy/inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting and its preparation method

An inorganic nano-filler, insulating material technology, applied in the direction of organic insulators, heat exchange materials, plastic/resin/wax insulators, etc. The effect of thermal conductivity

Active Publication Date: 2021-09-10
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that a small amount of inorganic filler cannot form a continuous heat conduction channel in an epoxy insulation system, the present invention provides an epoxy / inorganic nanocomposite high thermal conductivity insulation material based on electric field induced sorting and its preparation method

Method used

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  • An epoxy/inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting and its preparation method

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Effect test

Embodiment 1

[0021] An epoxy / inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting, comprising the following components by mass: 3 to 30 parts of inorganic nano filler and 100 parts of epoxy resin, the inorganic nano filler is composed of nano ferromagnetic particles Made of nano-coated zinc oxide.

Embodiment 2

[0023] A method for preparing an epoxy / inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting. The mass is divided into 3 to 30 parts of inorganic nano filler and 100 parts of epoxy resin. The inorganic nano filler is composed of nano ferromagnetic particles The outer coating is made of nano-zinc oxide. Mix epoxy resin, inorganic nano-fillers and acetone to make a suspension. After stirring, the inorganic nano-fillers are evenly dispersed in the suspension, and the acetone is discharged by step-down stirring, and the acetone will be exhausted. The suspension is placed in an electric field of a certain intensity, and the gradient temperature rises to solidify, and an epoxy / inorganic nanocomposite high thermal conductivity insulating material is prepared.

Embodiment 3

[0025] A method for preparing an epoxy / inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting. The mass is divided into 3 to 30 parts of inorganic nano filler and 100 parts of epoxy resin. The inorganic nano filler is composed of nano ferromagnetic particles It is made of coated nano-zinc oxide, and its particle size ranges from 100 to 500nm. Inorganic nano-fillers in this particle size range have high compatibility. After adding it to epoxy-based insulators, it will not reduce the insulating material. Mechanical properties, especially without reducing the flexibility of epoxy resins.

[0026] Mix epoxy resin, inorganic nanofiller and acetone to make a suspension, stir to make the inorganic nanofiller evenly disperse in the suspension, reduce the pressure and stir to discharge the acetone, and put the acetone-exhausted suspension in a certain strength electric field In the process, the gradient temperature is raised to cur...

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Abstract

The invention belongs to the technical field of insulating material preparation, and in particular relates to an epoxy / inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting and a preparation method thereof. The components of the high thermal conductivity insulating material include inorganic nano-fillers and epoxy resin, the inorganic nano-fillers are made of nano-ferromagnetic particles coated with nano-zinc oxide, epoxy resin, inorganic nano-fillers and acetone are made into a mixture Suspension, the inorganic nano filler is evenly dispersed in the suspension by stirring, the acetone is discharged by step-down stirring, the suspension is placed in the electric field for gradient temperature rise and solidification, and the inorganic nano filler forms a uniform organic compound in the epoxy system under the action of the electric field. Sequenced thermal conduction channel, made of high thermal conductivity insulating material. The invention solves the problem that a small amount of inorganic filler cannot form a continuous heat conduction channel in the epoxy insulation system, not only ensures the electrical and mechanical properties of the insulating material, but also can significantly improve its heat conduction performance, thereby improving the safety factor of the main insulation of the motor and service life.

Description

technical field [0001] The invention belongs to the technical field of insulating material preparation, and in particular relates to an epoxy / inorganic nanocomposite high thermal conductivity insulating material based on electric field induced sorting and a preparation method thereof. Background technique [0002] As the main adhesive in the main insulation of the motor, epoxy resin has good electrical and mechanical properties, but its thermal conductivity is poor, which affects the improvement of the motor capacity. Therefore, epoxy resin with high thermal conductivity and excellent insulation is prepared. Sexual materials have become a hot topic of international concern. At present, the main method to improve the thermal conductivity of epoxy resin-based materials is to add inorganic fillers with high thermal conductivity to epoxy-based materials, but adding too much inorganic fillers will reduce the electrical and mechanical properties of insulating materials; and a smal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K9/10C08K3/22C08J3/28C09K5/14H01B3/40
CPCC08J3/28C08J2363/00C08K2003/2275C08K2201/01C08K2201/011C09K5/14H01B3/40
Inventor 陈庆国梁良孙茂原付强
Owner HARBIN UNIV OF SCI & TECH
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