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Low-temperature-resistant insulation resin for motor and preparation method thereof

A technology of insulating resin and low temperature resistance, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems affecting the application of epoxy resin, and achieve good insulation treatment, good high and low temperature impact resistance, strength and heat resistance. The effect of improved performance

Active Publication Date: 2016-10-12
SUZHOU JUFENG ELECTRICAL INSULATION SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high cross-linking density of the cured epoxy resin, when the temperature drops to a low temperature, the internal stress and frozen chain segments in the matrix due to heat shrinkage will make the epoxy resin more brittle and affect the environment. Application of Oxygen Resin at Low Temperature

Method used

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  • Low-temperature-resistant insulation resin for motor and preparation method thereof
  • Low-temperature-resistant insulation resin for motor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment provides an insulating resin for a low-temperature resistant motor, which includes the following components in parts by weight:

[0025] 100 parts of epoxy resin composition;

[0026] Anhydride curing agent (methyl Nadic anhydride) 100 parts;

[0027] Latent accelerator (aluminum acetylacetonate) 0.2 parts;

[0028] The epoxy resin composition is 30 parts of bisphenol F epoxy resin (Dow DER354 epoxy resin, epoxy value 0.59mol / 100g), 40 parts of hyperbranched epoxy resin (Wuhan hyperbranched resin HyPer E101, epoxy value 0.32mol / 100g), 10 parts of tetrafunctional glycidylamine epoxy resin (AG-80) and 20 parts of acrylic modified silicone epoxy resin;

[0029] Among them, the synthetic method of acrylic-modified silicone epoxy resin is as follows: Weigh 100g of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane and add it to three mouths Into the bottle, add 0.5g hydroquinone (polymerization inhibitor), slowly raise the temperature while stirring, slowly add ...

Embodiment 2

[0034] This embodiment provides an insulating resin for a low-temperature resistant motor. The raw materials and preparation methods used are the same as those in Example 1. The difference is that the weight of the raw materials is inconsistent. It includes the following components by weight: epoxy resin 100 parts of the composition, 120 parts of acid anhydride curing agent (methyl nadic acid anhydride) and 0.4 parts of latent accelerator (aluminum acetylacetonate).

Embodiment 3

[0036] This embodiment provides an insulating resin for a low-temperature resistant motor. The raw materials and preparation methods used are the same as those in Example 1. The difference is that the weight of the raw materials is inconsistent. It includes the following components by weight: epoxy resin 100 parts of the composition, 90 parts of acid anhydride curing agent (methyl nadic acid anhydride), and 0.1 part of latent accelerator (aluminum acetylacetonate).

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Abstract

The invention relates to low-temperature-resistant insulation resin for a motor and a preparation method thereof. The insulation resin is prepared from the following ingredients in parts by weight: 100 parts of an epoxy resin composition, 90 to 120 parts of an anhydride curing agent and 0.1 to 0.4 part of a latent accelerator, wherein the epoxy resin composition is a mixture consisting of 20 to 30 parts of bisphenol F epoxy resin, 20 to 40 parts of hyperbranched epoxy resin, 10 to 25 parts of polyfunctional glycidyl amine epoxy resin and 10 to 20 parts of acrylic acid modified organosilicone epoxy resin. The epoxy resin composition, the anhydride curing agent and the latent accelerator according to a specific recipe are used to take a reaction; the molecular chain intensity improvement and the heat-resistant performance improvement are facilitated; the external load is born; the stress concentration is relieved, so that good high-temperature and low-temperature impact resistance performance is realized; the viscosity of the resin is effectively reduced; the insulation treatment of the motor is facilitated.

Description

Technical field [0001] The invention belongs to the field of composite insulating materials, and relates to an insulating resin for motors, in particular to an insulating resin for low-temperature resistant motors and a preparation method thereof. Background technique [0002] The surface temperature of a space station or spacecraft irradiated by the sun during its orbit can reach over 100°C, and even if proper temperature control measures are adopted on the backside surface, its lowest temperature can reach -100°C or even lower. With the development of aerospace technology and low temperature superconducting technology, the requirements for high and low temperature impact resistance of insulating materials are getting higher and higher. [0003] Epoxy resin material has become an indispensable material in ultra-low temperature equipment due to its advantages of insulation, heat insulation, no magnetic interference, and good stability. Since the cured epoxy resin has a high cross-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L63/10C08G59/42C08G59/68H01B3/46
CPCC08G59/4207C08G59/4215C08G59/68C08L63/00C08L2201/08C08L2203/20C08L2205/02C08L2205/025C08L2205/035H01B3/46C08L63/10
Inventor 徐伟红李翠翠宁方为王文夏宇周鲁滨王毅丁闪
Owner SUZHOU JUFENG ELECTRICAL INSULATION SYST
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