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Preparation method of high-temperature resisting and tensile-resisting insulating material

An insulating material and tensile-resistant technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., which can solve the problems of poor comprehensive performance, poor ductility, and inability to effectively insulate, and achieve good tensile properties.

Inactive Publication Date: 2018-03-30
SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional insulation materials have significantly reduced insulation performance in high temperature environments, and have poor ductility, easy to break when stretched, poor overall performance, and cannot effectively insulate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Add 8 parts of methyl glycolate, 4 parts of tetraethyl silicate, 25 parts of isoamyl salicylate, 3 parts of methyl gallate and 10 parts of polyurethane elastomer into the internal mixer by weight, High temperature to 120°C, banburying for 35 minutes;

[0022] (2) Add 5 parts of 2.6 di-tert-butyl-p-cresol and 15 parts of phosphoric acid to step (1), and banbury at a temperature of 135°C for 15 minutes;

[0023] (3) Put 8-12 parts of magnesia, 2-4 parts of silicon carbide and 4-8 parts of zirconia into the internal mixer in step (2) after fully ball milling, and mix for 2 hours at a temperature of 160°C and a pressure of 25KN; Finally, the mixture is subjected to hot-melt extrusion at a high temperature of 200° C. to form the mixture to obtain the high-temperature-resistant and tensile-resistant insulating material.

Embodiment 2

[0025] (1) Add 12 parts of methyl glycolate, 7 parts of tetraethyl silicate, 15 parts of isoamyl salicylate, 8 parts of methyl gallate and 8 parts of polyurethane elastomer into the internal mixer by weight, High temperature to 130°C, banburying for 20 minutes;

[0026] (2) Add 10 parts of 2.6 di-tert-butyl-p-cresol and 10 parts of phosphoric acid to step (1), and banbury at a temperature of 145°C for 25 minutes;

[0027] (3) Put 8-12 parts of magnesium oxide, 2-4 parts of silicon carbide and 4-8 parts of zirconia into the internal mixer in step (2) after fully ball milling, and mix for 4 hours at a temperature of 175°C and a pressure of 20KN; Finally, the mixture is subjected to hot-melt extrusion at a high temperature of 250° C. to form the mixture to obtain the high-temperature-resistant and tensile-resistant insulating material.

Embodiment 3

[0029] (1) Add 10 parts of methyl glycolate, 6 parts of tetraethyl silicate, 18 parts of isoamyl salicylate, 5 parts of methyl gallate and 8 parts of polyurethane elastomer into the internal mixer by weight, High temperature to 125°C, banburying for 25 minutes;

[0030] (2) Add 7 parts of 2.6 di-tert-butyl-p-cresol and 12 parts of phosphoric acid to step (1), and banbury at a temperature of 140°C for 18 minutes;

[0031] (3) 9 parts of magnesia, 2 parts of silicon carbide and 6 parts of zirconia are fully ball-milled and added to the internal mixer in step (2), and mixed for 3 hours at a temperature of 165°C and a pressure of 22KN; finally, the mixture is passed through 230°C The high-temperature-resistant stretch-resistant insulating material can be obtained by performing hot-melt extrusion at high temperature into a mixture.

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PUM

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Abstract

The invention discloses a preparation method of a high-temperature resisting and tensile-resisting insulating material. The preparation method comprises the following steps: respectively adding methylglycolate, tetraethyl orthosilicate, isoamyl salicylate, methyl gallate and a polyurethane elastomer into an internal mixer, raising the temperature to 120 to 130 DEG C and performing banburying for20 to 35 minutes; adding 2,6-ditertbutyl-p-cresol and phosphoric acid, and performing banburying at the temperature of 135 to 145 DEG C for 15 to 25 minutes; carrying out sufficient ball milling on magnesium oxide, silicon carbide and zirconium oxide and then adding a mixture into the internal mixer; mixing for 2 to 4 hours under the condition that the temperature is 160 to175 DEG C and the pressure is 20 to 25 KN; finally, carrying out hot melting and extruding on the mixture at high temperature of 200 to 250 DEG C to obtain a mixture, thus obtaining the high-temperature resisting and tensile-resisting insulating material.

Description

technical field [0001] The invention belongs to the field of electronic materials, and in particular relates to a preparation method of a high-temperature-resistant and tensile-resistant insulating material. Background technique [0002] The function of the insulating material is to isolate the charged parts with different potentials in the electrical equipment. Therefore, the insulating material should have good dielectric properties, that is, have high insulation resistance and withstand voltage strength, and can avoid accidents such as leakage, creepage or breakdown; secondly, the heat resistance should be good, especially not due to long-term heating It is most important to produce performance changes due to thermal aging; in addition, it has good thermal conductivity, moisture resistance, high mechanical strength and convenient processing. [0003] There are many types of insulating materials, which can be divided into three categories: gas, liquid and solid. Commonly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K13/02C08K3/22C08K3/34C08K5/13C08K5/134C08K3/32C08K5/5415C08K5/101H01B3/30
CPCC08K13/02C08K3/22C08K3/32C08K3/34C08K5/101C08K5/13C08K5/1345C08K5/5415C08K2003/222C08K2003/2244C08K2003/329C08K2201/014C08L2201/08H01B3/302C08L75/04
Inventor 邹黎清
Owner SUZHOU KEMAO ELECTRONICS MATERIALS TECH
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