Method for preparing electric insulating glue

A production method and electrical insulation technology, applied in the direction of organic insulators, rubber insulators, etc., can solve the problems of difficult filtration, electrical insulating glue containing many impurities, poor insulation performance of composite insulators and composite arrester jackets, etc., and achieve easy filtration and insulation performance. Good results

Active Publication Date: 2011-06-08
DONGJUE SILICONE NANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for making electrical insulating glue to solve the problems in the prior art that the electrical insulating glue c

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] First, the methyl vinyl silicone rubber, fumed white carbon black and silicone oil are kneaded in a closed rubber mixer at a weight ratio of 4:3:1 until the three are uniformly mixed; the kneaded rubber is thinly passed out of the sheet , The thin-pass roll distance used for thin-pass is 0.5mm, and the number of thin-pass is 5 times; then it enters the oven and bake at the oven temperature of 150℃ for 2 hours and then it is baked and cooled to obtain the first mixed rubber material.

[0021] Secondly, the methyl vinyl silicone rubber, aluminum hydroxide, and silicone oil are kneaded by a closed rubber mixer at a weight ratio of 4:5:1 until the three are evenly mixed; the kneaded rubber material is thinly passed out into a thin sheet. The thin-pass roll distance used during the pass is 0.5mm, and the number of thin passes is 5; then it enters the oven and bake at a furnace temperature of 150°C for 2 hours, and then it is baked and cooled to obtain the secon...

Example Embodiment

[0026] Example 2

[0027] First, the methyl vinyl silicone rubber, fumed white carbon black and silicone oil are kneaded in a closed rubber mixer at a weight ratio of 4:3:1 until the three are uniformly mixed to obtain the first mixed rubber material.

[0028] Secondly, the methyl vinyl silicone rubber, aluminum hydroxide and silicone oil are kneaded in a closed rubber mixer at a weight ratio of 4:5:1 until the three are uniformly mixed to obtain a second mixed rubber material.

[0029] Finally, the first mixed rubber material and the second mixed rubber material are kneaded into a large mass at a weight ratio of 1:1, and then the mixed rubber material is re-mixed using an open rubber mixer. The roller distance of the open rubber mixer is 12mm, the obtained rubber material is filtered through the filter screen with the mesh number of 28, 28, 150 and 200, and the filtered rubber material is the electrical insulating rubber.

[0030] In this embodiment, when the third mixed rubber mater...

Example Embodiment

[0034] Example 3

[0035] First, the methyl vinyl silicone rubber, fumed white carbon black and silicone oil are kneaded in a closed rubber mixer at a weight ratio of 4:5:1 until the three are uniformly mixed; the kneaded rubber material is thinly passed out. , The thin-pass roll distance used for thin-pass is 2mm, and the number of thin-pass is 3; then it enters the oven and bake at 120℃ for 2 hours, and then it is baked and cooled to obtain the first mixed rubber material.

[0036] Secondly, the methyl vinyl silicone rubber, aluminum hydroxide and silicone oil are kneaded in a closed rubber mixer at a weight ratio of 2:8:0 until the three are evenly mixed; the kneaded rubber material is thinly passed out into a thin sheet. The thin pass roll distance used during the pass is 2mm, and the number of pass passes is 3 times; then it enters the oven and bake at a furnace temperature of 120°C for 3 hours, and then it is baked and cooled to obtain the second mixed rubber material.

[0037...

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PUM

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Abstract

The invention relates to a method for preparing electric insulating glue, which comprises the following steps of: (1) uniformly mixing and kneading silicolous glue, a reinforcing agent and a plasticizer to obtain a first mixed glue material, wherein the silicolous glue accounts for 40-70 percent, the reinforcing agent accounts for 20-50 percent, and the plasticizer accounts for 5-20 percent by mass percentage; (2) uniformly mixing and kneading the silicolous glue, a filling agent and the plasticizer to obtain a second mixed glue material, wherein the silicolous glue accounts for 20-40 percent, the filling agent accounts for 50-80 percent, and the plasticizer accounts for 0-10 percent by mass percentage; and (3) uniformly mixing and kneading the first mixed glue material, the second mixed glue material and the plasticizer to obtain a third mixed glue material, wherein the first mixed glue material accounts for 20-50 percent, the second mixed glue material accounts for 50-80 percent, and the plasticizer accounts for 0-10 percent by mass percentage; and remilling and filtering the third mixed glue material to obtain the electric insulating glue. The invention has the advantages of easy filtration of impurities in the glue material and good insulating performance of the glue material.

Description

technical field [0001] The invention relates to the technical field of silicone rubber insulating materials, in particular to a method for making electrical insulating glue. Background technique [0002] The electrical insulating glue produced by the existing production technology is not easy to filter, and there are many impurities in the rubber material. When using this kind of electrical insulating glue to make composite insulators and composite lightning arrester jackets, the insulation performance is poor and quality problems are prone to occur. [0003] Existing electrical insulation glue production method is as follows: [0004] Knead the raw silica gel, reinforcing agent, filler and plasticizer, mix evenly, re-mill and roll the obtained mixed rubber, and then filter it. Among them, the raw silica gel accounts for 30%-50% by mass percentage, and the reinforcement The agent accounts for 10%-30%, the filler accounts for 30%-50%, and the plasticizer accounts for 5%-20%....

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/04C08K3/36C08K3/22H01B3/28
Inventor 徐党生
Owner DONGJUE SILICONE NANJING CO LTD
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