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Liquid silicone rubber base sizing material and preparation method thereof as well as organic silicon coating using sizing material and preparation method thereof

A technology of liquid silicone rubber and organic silicon coating, applied in the direction of coating, etc., can solve the problems of poor high temperature resistance of glass fiber insulating bushing, low voltage resistance of glass fiber insulating bushing, and more solvent consumption, etc., to achieve wide application Value, environmental protection, effect of less solvent

Inactive Publication Date: 2014-12-17
DONGGUAN SINO SILICONE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the organic silicon coating prepared by using yellow wax as the base glue is used to coat the glass fiber insulating sleeve, the high temperature resistance of this type of glass fiber insulating sleeve is poor, and the application is limited; the use of solid silicone rubber compound When the silicone coating prepared as a base glue is applied to the glass fiber insulating sleeve, the withstand voltage of this type of glass fiber insulating sleeve is low, and the solvent consumption in the production process is large, and the defect of pollution is large

Method used

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  • Liquid silicone rubber base sizing material and preparation method thereof as well as organic silicon coating using sizing material and preparation method thereof
  • Liquid silicone rubber base sizing material and preparation method thereof as well as organic silicon coating using sizing material and preparation method thereof
  • Liquid silicone rubber base sizing material and preparation method thereof as well as organic silicon coating using sizing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A liquid silicone rubber base compound is provided, comprising the following components in parts by mass:

[0040] 100 parts by mass of polymethylvinylsiloxane

[0041] Reinforcing filler 25 parts by mass

[0042] 25 parts by mass of hexamethyldisilazane;

[0043] Wherein, the viscosity of the polymethylvinylsiloxane at 25°C is 2000mPa.s, and the vinyl content of the polymethylvinylsiloxane is 0.8%mol / mol; The specific surface area of ​​the reinforcing filler is 300m 2 / g.

[0044] The reinforcing filler has a specific surface area of ​​300m 2 / g of fumed silica or precipitated silica or a mixture of both, which can be selected according to the actual situation.

[0045] A preparation method for the liquid silicone rubber base compound described in Example 1 is provided, comprising the following steps:

[0046] (1) 100 parts by mass of polymethylvinylsiloxane with a viscosity of 2000 mPa.s and a vinyl content of 0.8% mol / mol at 25°C, 25 parts by mass of polymethyl...

Embodiment 2

[0073] A liquid silicone rubber base compound is provided, comprising the following components in parts by mass:

[0074] 100 parts by mass of polymethylvinylsiloxane

[0075] 35 parts by mass of reinforcing filler

[0076] 35 parts by mass of hexamethyldisilazane;

[0077] Wherein, the viscosity of the polymethylvinylsiloxane at 25°C is 9000mPa.s, and the vinyl content of the polymethylvinylsiloxane is 0.5%mol / mol; The specific surface area of ​​the reinforcing filler is 380m 2 / g.

[0078] The reinforcing filler has a specific surface area of ​​380m 2 / g of fumed silica or precipitated silica or a mixture of both, which can be selected according to the actual situation.

[0079] A preparation method for the liquid silicone rubber base compound described in Example 2 is provided, comprising the following specific steps:

[0080] (1) 100 parts by mass of polymethylvinylsiloxane with a viscosity of 9000mPa.s and a vinyl content of 0.5%mol / mol at 25°C, 35 parts by mass of ...

Embodiment 3

[0108] A liquid silicone rubber base compound is provided, comprising the following components in parts by mass:

[0109] 100 parts by mass of polymethylvinylsiloxane

[0110] Reinforcing filler 20 parts by mass

[0111] 5 parts by mass of hexamethyldisilazane;

[0112] Wherein, the viscosity of the polymethylvinylsiloxane at 25°C is 200mPa.s, and the vinyl content of the polymethylvinylsiloxane is 0.05%mol / mol; The specific surface area of ​​the reinforcing filler is 150m 2 / g.

[0113] The reinforcing filler has a specific surface area of ​​150m 2 / g of fumed silica or precipitated silica or a mixture of both, which can be selected according to the actual situation.

[0114] A preparation method for the liquid silicone rubber base compound described in Example 3 is provided, comprising the following specific steps:

[0115](1) 100 parts by mass of polymethylvinylsiloxane with a viscosity of 200 mPa.s and a vinyl content of 0.05% mol / mol at 25° C., 20 parts by mass with...

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Abstract

The invention discloses a liquid silicone rubber base sizing material and a preparation method thereof as well as an organic silicon coating using the sizing material and a preparation method thereof. The liquid silicone rubber base sizing material comprises the following components in parts by weight: 100 parts of polymethyl vinyl siloxane, 20-40 parts of reinforced filler, and 0-40 parts of hexamethyldisilazane. The organic coating prepared by taking the liquid silicone rubber base sizing material as the base sizing material can be coated on a glass fiber insulating bush, so that the glass fiber insulating bush product has the advantages of good thermostability and high voltage resistance. Furthermore, the liquid silicone rubber base sizing material is taken as the base sizing material for producing the organic coating, the consumed solvent in production is less, and the method has the advantages that production cost is saved, contamination is little, and the environment is protected.

Description

technical field [0001] The present invention relates to a liquid silicone rubber base material; also relates to a preparation method for preparing the liquid silicone rubber base material; also relates to a silicone coating using the liquid silicone rubber base material; also relates to a A preparation method for preparing the silicone coating. Background technique [0002] In order to make the glass fiber insulating sleeve have good high temperature resistance and high pressure resistance, a layer of silicone coating is generally applied to the glass fiber insulating sleeve. However, the existing organic silicon coatings are mainly prepared by using non-organic silicon materials such as yellow wax or using solid organic silicon compound glue as the base glue, and are used to coat the glass fiber insulating sleeve. However, when the organic silicon coating prepared by using yellow wax as the base glue is used to coat the glass fiber insulating sleeve, the high temperature r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08K3/36C08K5/5445C09D183/07C09D183/05C09D7/12
Inventor 韩榕顺
Owner DONGGUAN SINO SILICONE NEW MATERIAL TECH
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