Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Room-temperature curing high-temperature-resistant organic silicon rubber material as well as preparation method and application of room-temperature curing high-temperature-resistant organic silicon rubber material

A silicone rubber, room temperature curing technology, used in adhesives, fire-retardant coatings, polymer adhesive additives, etc., can solve the problems of high cost and poor temperature resistance, reduce production costs, simplify the preparation process, and improve preparation. The effect of efficiency

Active Publication Date: 2019-04-09
INST OF CHEM CHINESE ACAD OF SCI
View PDF2 Cites 29 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the low cost of materials is a major trend in its development. In silicone rubber materials, a large amount of white carbon black is used as a reinforcing filler, and when used as a high temperature resistant material, the gas phase method with higher cost is generally used. Silica, and the low-cost precipitated silica has poor temperature resistance due to its structural characteristics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Room-temperature curing high-temperature-resistant organic silicon rubber material as well as preparation method and application of room-temperature curing high-temperature-resistant organic silicon rubber material
  • Room-temperature curing high-temperature-resistant organic silicon rubber material as well as preparation method and application of room-temperature curing high-temperature-resistant organic silicon rubber material
  • Room-temperature curing high-temperature-resistant organic silicon rubber material as well as preparation method and application of room-temperature curing high-temperature-resistant organic silicon rubber material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] The preparation method of above-mentioned polysilazane, described method comprises the steps:

[0048] (1) Drying the solvent, ammonia gas, difunctional chlorosilane and trifunctional chlorosilane, and drying the reaction device;

[0049] (2) Add the dried solvent into the reaction device through a metering pump, add the dried difunctional chlorosilane and trifunctional chlorosilane into the reaction device through a metering pump respectively, and pass the dried ammonia through a mass flow meter. Enter under the liquid level of reaction device, carry out ammonolysis reaction;

[0050] (3) Put the "slurry" system containing a large amount of ammonium chloride after the reaction into the filter device through the mortar pump, filter and wash the filter residue with a solvent, and collect the filtrate;

[0051] (4) The filtrate containing the polysilazane product is introduced into a thin-film evaporator with continuous distillation function through a material transfer p...

preparation example 1

[0062] The preparation method of the hydroxy-terminated polysiloxane containing methyl phenyl group: take octamethylcyclotetrasiloxane and octaphenylcyclotetrasiloxane as raw materials, and the ratio of feed is calculated according to the required phenyl content. Tetramethylammonium hydroxide is used as an initiator, and acetic acid is used as an end-capping agent.

preparation example 2

[0064] The preparation method of hydroxyl-terminated polysiloxane containing methyl vinyl group: take octamethylcyclotetrasiloxane and octavinylcyclotetrasiloxane as raw materials, and calculate the feeding ratio according to the required vinyl content. Tetramethylammonium hydroxide is used as an initiator, and acetic acid is used as an end-capping agent.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention provides a room-temperature curing high-temperature-resistant organic silicon rubber material as well as a preparation method and application of the room-temperature curing high-temperature-resistant organic silicon rubber material. The rubber material is low in cost, capable of realizing room temperature curing, resistant to high temperature and good in process performance, tensileproperty and adhesive property. The room-temperature curing 350-DEG C high-temperature-resistant organic silicon rubber material is composed of double components, wherein the component A is used as abasic rubber material and mainly comprises basic rubber, namely hydroxy-terminated polysiloxane containing different functional groups, precipitated white carbon black pretreated by using a certain amount of treating agent, an optional amount of silicon resin and a certain amount of matched high-temperature-resistant additive; and the component B is formed by matching a polysilazane room-temperature curing agent with a certain amount of catalyst. The room-temperature curing 350-DEG C high-temperature-resistant organic silicon rubber material is simple and convenient in construction process andis an ideal matrix material for preparing an elastic adhesive sealing material and an elastic thermal protection coating.

Description

technical field [0001] The invention relates to a room-temperature-cured silicone rubber material resistant to a high temperature of 350°C, a preparation method and application thereof, and belongs to the technical field of high-temperature-resistant elastic materials and its preparation. Background technique [0002] Because of its good heat resistance, cold resistance, weather resistance, and aging resistance, silicone rubber materials are widely used as elastic material substrates resistant to high temperatures of 250 ° C. With the development of the national economy, higher resistance to High temperature silicone rubber materials put forward an urgent demand, which requires modification of silicone rubber materials. The degradation and failure mechanism of silicone rubber materials at high temperature is extremely complex, which is related to the molecular structure of organosiloxane used, the structure and surface characteristics of reinforcing fillers, the structure of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D7/61C09D7/62C09D7/65C09J183/04C09J11/04C09J11/08C08G77/04C08G77/06C08G77/38C08G77/62C08G77/20
CPCC08G77/04C08G77/06C08G77/20C08G77/38C08G77/62C08G77/80C08K2003/2213C08K2003/2227C08K2003/2272C08K2003/2296C08L2201/08C08L2205/025C08L2205/035C08L2205/20C09D5/18C09D7/61C09D7/62C09D7/65C09D7/70C09D183/04C09J11/04C09J11/08C09J183/04C08L83/04C08L83/16C08L61/06C08L77/10C08K13/06C08K9/06C08K3/36C08K3/22C08K7/28C08K7/14C08K3/04C08K3/08C08K7/06C08K7/10
Inventor 张学忠张志杰谢择民谭永霞汪倩戴丽娜赵云峰
Owner INST OF CHEM CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com