High-temperature-resistant and flame-retardant silicone rubber and preparation method thereof

A silicone rubber, high temperature resistant technology, applied in the field of silicone rubber, can solve the problem of high temperature resistance of halogen flame retardant silicone rubber, achieve good high temperature resistance, good flame retardant performance, and increase the effect of temperature range

Inactive Publication Date: 2014-01-01
JIANGSU TIANCHEN NEW MATERIALS
View PDF8 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of high temperature resistant flame retardant silicone rubber and its preparation method to solve the disadvantages of halogen flame retardant silicone rubber in the prior art that are not resistant to high temperature

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
  • High-temperature-resistant and flame-retardant silicone rubber and preparation method thereof
  • High-temperature-resistant and flame-retardant silicone rubber and preparation method thereof
  • High-temperature-resistant and flame-retardant silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of the above-mentioned high temperature resistant flame retardant silicone rubber comprises the following steps:

[0026] Step 1, adding 100 parts by mass of methyl vinyl silicone rubber raw rubber into a kneader and stirring for 2-4 minutes;

[0027] Step 2: Add 30-50 parts by mass of fumed silica, 3-6 parts by mass of dimethyldimethoxysilane, 3-6 parts by mass of hydroxyl silicone oil and 0.2-0.4 parts by mass of stearic acid in 3-6 times Into the methyl vinyl silicone rubber raw rubber obtained in step 1, and stir evenly after each addition to obtain a silicone rubber mix;

[0028] Step 3: Knead the silicone rubber compound obtained in Step 2 at room temperature for 0.5-1h, then raise the temperature to 140-160°C, evacuate until the vacuum degree is 0.05-0.08kPa, cool down to 70-90°C, and release the glue to obtain the mixture Refined silicone rubber;

[0029] Step 4: Add 0.2-0.6 parts by mass of vinyltrimethoxysilane, 20-30 parts by mass of ...

Embodiment 1

[0032] Step 1, adding 100 parts by mass of methyl vinyl silicone rubber raw rubber to a kneader and stirring for 3 minutes;

[0033] Step 2. Add 35 parts by mass of fumed silica, 3 parts by mass of dimethyldimethoxysilane, 3 parts by mass of hydroxyl silicone oil and 0.3 parts by mass of stearic acid to the methyl vinyl silicon obtained in step 1. In the rubber raw rubber, fully stir after each addition to obtain a silicone rubber compound;

[0034] Step 3. Knead the silicone rubber compound obtained in step 2 at room temperature for 0.5 hours, then raise the temperature to 150°C, evacuate to a vacuum degree of 0.06kPa, pass cooling water to cool down to 80°C, and produce the rubber to obtain the mixed silicone rubber;

[0035] Step 4: Add 0.4 parts by mass of vinyltrimethoxysilane, 28 parts by mass of decabromodiphenylethane and 1 part by mass of cerium oxide into the mixed silicone rubber obtained in step 3 in 4 times, raise the temperature to 120°C, and evacuate The vacuum...

Embodiment 2

[0039] Step 1, adding 100 parts by mass of methyl vinyl silicone rubber raw rubber to a kneader and stirring for 3 minutes;

[0040] Step 2. Add 40 parts by mass of fumed silica, 4 parts by mass of dimethyldimethoxysilane, 4 parts by mass of hydroxyl silicone oil and 0.4 parts by mass of stearic acid to the methyl vinyl silicon obtained in step 1. In the rubber raw rubber, fully stir after each addition to obtain a silicone rubber compound;

[0041] Step 3. Knead the silicone rubber compound obtained in step 2 at room temperature for 1 hour, then raise the temperature to 150° C., evacuate to a vacuum degree of 0.07 kPa, pass cooling water to cool down to 80° C., and produce the rubber to obtain the mixed silicone rubber;

[0042] Step 4: Add 0.4 parts by mass of vinyltrimethoxysilane, 25 parts by mass of decabromodiphenylethane and 1 mass of cerium oxide to the mixed silicone rubber obtained in step 3 in 4 times, raise the temperature to 120°C, and evacuate The vacuum degree ...

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
specific surface areaaaaaaaaaaa
viscosityaaaaaaaaaa
Login to view more

Abstract

The invention discloses high-temperature-resistant and flame-retardant silicone rubber and a preparation method thereof. The high-temperature-resistant flame-retardant silicone rubber comprises the components in parts by mass as follows: 100 parts of methylvinyl silicone rubber, 30-50 parts of fumed silica, 3-6 parts of dimethyl dimethoxy silicane, 3-6 parts of hydroxyl silicone oil, 0.2-0.6 parts of ethenyltrimethoxy, 0.2-0.4 parts of stearic acid, 20-30 parts of 1,2-Bis(2,3,4,5,6-pentabromophenyl)ethane and 1-2 parts of cerium oxide. According to practical detection, the silicone rubber has a good flame-retardant property and better high-temperature-resistant characteristics, hardness, strength and processability, and can meet using requirements of high-temperature-resistant flame-retardant cables completely.

Description

technical field [0001] The invention relates to the technical field of silicone rubber, in particular to a high-temperature-resistant and flame-retardant silicone rubber and a preparation method thereof. Background technique [0002] Silicone rubber has many excellent properties such as good high and low temperature resistance, ozone resistance, weather resistance, insulation and production inertia, and is widely used in various fields of the national economy. Silicone rubber filled with fumed silica and halogen material as a flame retardant has good electrical insulation, flame retardant properties, and its excellent processing and forming properties determine that it can be used as a cable. However, if it is applied in a special environment, such as a high-temperature environment, the high-temperature resistance and flame-retardant properties of the silicone rubber cannot meet the requirements. Therefore, it is of great significance to study high-temperature-resistant and ...

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): C08L83/07C08L83/06C08K13/02C08K3/36C08K5/5419C08K5/5425C08K5/09C08K5/03C08K3/22
Inventor 郝冬冬张薇薇徐文俊施贤斌
Owner JIANGSU TIANCHEN NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap