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Single-component ketoxime removing type room temperature vulcanized silicone rubber composition

A silicone rubber composition and room temperature vulcanization technology, which is applied in the field of one-component deketoxime type room temperature vulcanization silicone rubber composition, can solve the problems of poor leveling, short surface drying time, etc., and achieve good high and low temperature performance, electrical insulation Excellent performance, excellent water resistance effect

Active Publication Date: 2008-05-07
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the existing single-component deketoxime type room temperature vulcanized silicone rubber with short surface drying time and poor leveling property, and provide a single-component deketation product with long surface drying time and good leveling property. Oxime RTV Silicone Rubber

Method used

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  • Single-component ketoxime removing type room temperature vulcanized silicone rubber composition
  • Single-component ketoxime removing type room temperature vulcanized silicone rubber composition

Examples

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Effect test

Embodiment 1

[0025] This example is used to illustrate the one-component deketoxime type room temperature vulcanized silicone rubber provided by the present invention and its preparation method.

[0026] Under the protection of dry nitrogen, 1 kg of hydroxyl-terminated polydimethylorganosiloxane (trade name: 107 glue, 25 ° C viscosity of 3000 centipoise), 50 g of fumed silica (specific surface area of ​​200 square meters / grams) and 100 grams of trimethylsilyl-terminated polyorganosiloxane (viscosity of 1000 centipoise at 25° C.) were ground and mixed evenly, and mixed with 80 grams of anilinomethyl tributylketoxime silane, 30 grams of vinyl The cross-linking catalytic mixture of trimethylketoxime silane and 3 g of dibutyltin dilaurate was uniformly mixed, and then mixed uniformly with all the above organosiloxane polymers under stirring. Then 15 grams of γ-aminopropyltriethoxysilane, 15 grams of γ-(2,3-epoxypropoxy)propyltrimethoxysilane were stirred with the above mixture for 30 minutes...

Embodiment 2

[0032] This example is used to illustrate the one-component deketoxime type room temperature vulcanized silicone rubber provided by the present invention and its preparation method.

[0033] Under the protection of dry nitrogen, 1 kg of hydroxyl-terminated polydimethylorganosiloxane (trade name: 107 glue, 25 ° C viscosity of 3000 centipoise), 50 g of fumed silica (specific surface area of ​​200 square meters / gram) and 100 grams of trimethylsilyl-terminated polyorganosiloxane (viscosity 1000 centipoise at 25° C.) were ground and mixed evenly, and then stirred and mixed evenly with 10 grams of hexamethyldisilazane, and then mixed with 80 grams of anilinomethyl tributylketoxime silane, 20 grams of vinyl tributylketoxime silane, 10 grams of tetrabutylketoxime silane and 3 grams of dibutyltin dilaurate cross-linking catalytic mixture mixed with the above After the mixture is stirred and mixed evenly, it is mixed with 10 grams of γ-aminopropyltriethoxysilane and 20 grams of γ-(2,3...

Embodiment 3

[0035] This example is used to illustrate the one-component deketoxime type room temperature vulcanized silicone rubber provided by the present invention and its preparation method.

[0036] Under the protection of dry nitrogen, 1 kg of hydroxyl-terminated polydimethylorganosiloxane (trade name: 107 glue, 25 ° C viscosity of 3000 centipoise), 50 g of fumed silica (specific surface area of ​​200 square meters / gram) and 100 grams of trimethylsilyl-terminated polyorganosiloxane (viscosity 1000 centipoise) ground and mixed with 10 grams of hexamethyldisilazane and mixed with 30 grams of anilinomethyl tri The cross-linking catalytic mixture of methyl ethyl ketoxime base silane, 80 grams of phenyl tributylketoxime base silane and 3 grams of stannous octoate mixed and mixed with the above mixture after mixing evenly with 30 grams of γ-(2,3-glycidyl oxide ) Propyltrimethoxysilane was uniformly mixed under stirring conditions to obtain the one-component deketoxime type room temperatu...

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Abstract

A single component ketonic oxime type room temperature silastic combination contains organic siloxane polymer of 100 parts by weight, inorganic filling of 0.1 to 20 parts by weight and crosslinking agent of 3 to 45 parts by weight, wherein, the crosslinking agent contains aniline methyl trepibutone oximido silane and at least one kind of methyl trepibutone oximido silane, phenyl trepibutone oximido silane and tetrahedralpibutone oximido silane. The single component ketonic oxime type room temperature silastic composite disclosed in the invention has good leveling property and surface dry time so as to ensure that the interior of the silastic composite can dry completely, ensure the water content consistent internally and externally and overcome the case of facial crack. Being applicable for novel auxiliary material in the processes of positioning, cementing, sealing and coating package for the components of electronic products and electric equipments, the invention has good insulating, dustproof, dampproof, anticorrosive and earthquake-proof effects.

Description

technical field [0001] The present invention relates to a one-component deketoxime type room temperature vulcanized silicone rubber composition, in particular to a one component deketoxime type room temperature vulcanized silicone rubber composition. Background technique [0002] Room temperature vulcanized silicone rubber (RTV) is a silicone rubber product that came out in the 1960s. This kind of rubber has good heat resistance, cold resistance and excellent electrical insulation performance of silicone rubber. More importantly, it is easy to use and can be vulcanized at room temperature without heating or pressurization. [0003] Room temperature vulcanized silicone rubber can be divided into one-component and two-component room temperature vulcanized silicone rubber according to different packaging methods. One-component room temperature vulcanized silicone rubber is to mix and pack all the components that make up one-component room temperature vulcanized silicone rubber...

Claims

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Application Information

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IPC IPC(8): C08L83/14C08K5/57C08K3/36C08K5/544
Inventor 张惠玲
Owner BYD CO LTD
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