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High-temperature-resisting three-prevention pouring glue and its production

A technology of casting glue and high temperature resistance, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc. It can solve the problems of reducing the viscosity of casting glue, polluting the environment, and increasing the scrap rate of motors, and achieves improved dispersion performance, low viscosity, The effect of increasing strength

Inactive Publication Date: 2007-11-21
哈尔滨化工研究所
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AI Technical Summary

Problems solved by technology

However, these casting glues often use solvents to reduce the viscosity of the casting glue. When the casting glue is cured, small molecule solvents are released to form bubbles, which increases the scrap rate of motors and pollutes the environment.

Method used

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Examples

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Embodiment Construction

[0023] The following examples describe the present invention in more detail:

[0024] Specific embodiment a, take by weighing 50g of 600 purpose active silicon micropowder after soaking and drying with silane coupling agent, epoxy resin 72g, anhydride curing agent 35g in the beaker of 200mL, beaker is placed in the heating in water bath, constantly Stir and heat up to 60°C. After the material becomes liquid, add 9g of polyol or fatty alcohol toughening accelerator, keep the temperature of the material at 60°C, pour the melted material into the micro-motor and different molds, and after solidification, respectively The poured micro-motors and test pieces were tested, and the test results are shown in Table 1.

[0025] Specific embodiment b, weigh 50g of 600-mesh active silica powder, 72g of epoxy resin, and 35g of anhydride curing agent in a 200mL beaker, heat the beaker in a water bath, and heat up to 70°C under constant stirring, after the material becomes liquid , add 9g of...

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Abstract

A high-temperature-resisting three-preventing pouring glue and its production are disclosed. The process is carried out by mixing epoxy resin and activated filler mixture of in proportion of 6-10:7 with anhydride curing agent and alcohol toughening improver in proportion of 13-17:3-5:0.5-1. It has no solvent and environmental pollution, less viscosity and linear expansion coefficient, wide temperature range, higher thermal deformation temperature and excellent infiltration to coil.

Description

(1) Technical field [0001] The invention relates to an insulating material, in particular to an insulating casting material with high temperature resistance. (2) Background technology [0002] Class F (150°C), Class H (180°C), and Class C (above 200°C) motor insulation casting materials have been available in China, and have been applied in relevant departments. However, these casting glues often use solvents to reduce the viscosity of the casting glue. When the casting glue cures, small molecule solvents are released to form bubbles, which increases the scrap rate of motors and pollutes the environment. With the rapid development of science and technology in our country, many new technical requirements have been put forward for motor insulation casting materials, such as improving the heat resistance of casting materials to meet the needs of reducing the size of motors; improving the three-proof performance of casting materials to enhance motors Adaptability to harsh envir...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/06B29C39/00C08K5/05H01B3/40
Inventor 宁祥李丽郭示欣李荧
Owner 哈尔滨化工研究所
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