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Special organosilicon adhesive for fire-resistant isinglass belt and production method

A technology of silicone adhesive and refractory mica, which is applied in the direction of mica, adhesives, inorganic insulators, etc., can solve the problems of back sticking, poor dryness, moisture absorption, etc., and achieve good adhesion, good cohesiveness, and softness Good results

Inactive Publication Date: 2008-04-09
卢儒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are poor dryness, stickiness, moisture absorption, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take a 250ML three-necked flask, add 40 g of toluene, 12 g of MQ resin, and 50 g of silicone rubber, install a stirrer, a thermometer and a reflux condenser, turn on the stirrer, add 0.006 g of sodium acetate, and heat to reflux for 6 hours at a temperature of 112°C. Add 1 drop (0.05g) of lower alcohol polymerization inhibitor, stir for 20 minutes, and cool for use after uniformity. When used, add 0.48g of dibenzoyl peroxide, stir evenly, coat it on the mica tape and bake it at 80℃ for 3 minutes, and cure it at 150℃ for 3 minutes.

Embodiment 2

[0020] Take a 250ML three-necked flask, add 30 g of toluene, 20 g of MQ resin, and 40 g of silicone rubber. Install the stirring, thermometer and reflux condenser, turn on the stirring, add 0.010 g of sodium acetate, and heat to reflux for 6 hours at a temperature of 112°C. Add 2 drops (0.1 g) of polymerization inhibitor, stir for 20 minutes, and cool for use after uniformity. When used, add 0.48g of dibenzoyl peroxide, stir evenly, coat it on the mica tape and bake it at 80℃ for 3 minutes, and cure it at 150℃ for 3 minutes.

Embodiment 3

[0022] Take a 250ML three-necked flask, add 25 g of toluene, 22 g of MQ resin, and 38 g of silicone rubber, install a stirrer, a thermometer and a reflux condenser, turn on the stirring, add 0.015 g of sodium acetate, and heat to reflux for 6 hours at a temperature of 112°C. Add 2 drops (0.1 g) of polymerization inhibitor, stir for 20 minutes, and cool for use after uniformity. When used, add 0.48g of dibenzoyl peroxide, stir evenly, coat it on the mica tape and bake it at 80℃ for 3 minutes, and cure it at 150℃ for 3 minutes.

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PUM

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Abstract

The invention discloses an organ silicone adhesive special for a fire-resistant mica tape, mainly made from MQ colophony, silicone rubber, organic solvent and strong base weak acid salt. The invention has good adhesion, holding power and softness, dryness, no recurrent viscosity, no moisture absorption and no carbon formation when being burned.

Description

Technical field: [0001] The invention relates to an adhesive. Background technique: [0002] In today's rapid economic development, due to the limitation of fire protection facilities and capabilities, many fields require the use of fire-resistant cables with good insulation properties. The main difference between a fire-resistant cable and an ordinary cable is that it adds a fire-resistant layer, which is usually set between the conductor and the insulator. Once the cable is burned, all the organic materials that make up the cable will be turned into ashes. To maintain the "line integrity", it is this "refractory layer." Almost all refractory layers are made of "refractory mica tape". The materials that make up the fire-resistant mica tape are mica paper, adhesive and reinforcing material glass cloth. Mica paper is a material that really plays the role of electrical insulation and fire resistance. The adhesive is a material that combines mica paper and glass cloth. The choice of...

Claims

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Application Information

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IPC IPC(8): C09J183/04H01B3/04H01B7/295
Inventor 卢儒
Owner 卢儒
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