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

Modified silicon rubber sheath material and preparation method thereof

A technology of rubber sheath and modified silicon, which is applied in the direction of rubber insulators and organic insulators, can solve the problems of silicone rubber oil resistance, poor corrosion resistance, low mechanical strength, and low mechanical strength of materials, so as to achieve good oil resistance and increase The effect of mechanical strength

Inactive Publication Date: 2017-11-07
ZHEJIANG DIHENG IND CO LTD
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in material properties, there are many problems in the mixing process of silicone rubber and fluororubber. At the same time, fluororubber is the same as ordinary silicone rubber, and the mechanical strength of vulcanized rubber is relatively low, especially the tear strength.
In the Chinese invention patent CN105244098A, a cold-resistant, anti-oxidation and flame-retardant cable is disclosed. The combination of silicone rubber and fluorosilicone rubber further improves the pollution resistance and weather resistance of the material, but the problem of low mechanical strength of the material has not yet been solved.
Therefore, the corresponding manufacturers urgently need to solve the problems of oil resistance, poor corrosion resistance and low mechanical strength of silicone rubber.

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
  • Modified silicon rubber sheath material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] A preparation method of modified silicone rubber sheath material, comprising the steps of:

[0033] (1) To prepare vinylphenyl silsesquioxane, weigh 18.7mL of phenyltrimethoxysilane and 16.5mL of dimethylvinylethoxysilane to form an oil phase, weigh 12mL of isopropanol, 20mL of deionized water and 3mL of concentrated hydrochloric acid form the water phase, add it to a four-necked flask equipped with a stirrer, a thermometer, and a reflux condenser, pass in nitrogen protection, heat the oil bath to 75°C while stirring, react for 10 hours, and let the upper layer stand still Pour out the acidic water, add 100mL of deionized water, wash with water at 60°C until neutral, then vacuum dry at 100°C and -0.1MPa for 10h to obtain vinylphenyl silsesquioxane;

[0034] (2) To prepare modified nanofibers, first prepare 200mL of alcohol aqueous solution with a volume ratio of 1:1, adjust the pH value to 5.0 with 0.1M hydrochloric acid solution, and obtain a mixed solution; disperse 1...

Embodiment 1

[0039] A preparation method of modified silicone rubber sheath material, comprising the steps of:

[0040] (1) To prepare the crosslinking agent vinylphenyl silsesquioxane, weigh 18.7mL of phenyltrimethoxysilane and 16.5mL of dimethylvinylethoxysilane to form the oil phase, and weigh 12mL of isosilsesquioxane Propanol, 20mL deionized water and 3mL concentrated hydrochloric acid form the water phase, add it into a four-necked flask equipped with a stirrer, a thermometer, and a reflux condenser, pass in nitrogen protection, heat the oil bath to 75°C under stirring, react for 10h, and statically Pour out the upper layer of acidic water, add 100mL of deionized water, wash with water at 60°C until neutral, then vacuum dry at 100°C and -0.1MPa for 10h to obtain vinylphenyl silsesquioxane;

[0041] (2) To prepare modified nanofibers, first prepare 200mL of alcohol aqueous solution with a volume ratio of 1:1, adjust the pH value to 5.0 with 0.1M hydrochloric acid solution, and obtain ...

Embodiment 2

[0045] Crosslinking agent vinyl phenyl silsesquioxane, modified nanofiber, flame retardant poly[benzotin-cyclotrimeric phosphazene-1,3,5-triazine-2,4,6-triamine ] The preparation method is the same as Example 1, the difference of the preparation method of the modified silicone rubber sheath material is that step (4): take by weight 50 parts by weight silicone rubber, 10 parts by weight fluororubber, 5 parts by weight Fluorosilicone rubber was added to the internal mixer, the temperature was raised to 90°C, and banburying was carried out at a speed of 150r / min for 5 minutes, and then 3 parts by weight of heptadecafluorodecyltrimethoxysilane and 3 parts by weight of polyvinylidene fluoride were added in the same Mix at temperature and rotating speed for 10 minutes to obtain the main material, then raise the banburying temperature to 105°C, add 4 parts by weight of isocyanate triethoxysilane modified titanium boride nanofibers, 3 parts by weight of polyacrylonitrile organic fibers...

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

No PUM Login to View More

Abstract

A modified silicone rubber sheath material provided by the invention and a preparation method thereof, the raw materials of which are made of silicone rubber, fluororubber, fluorosilicone rubber, heptadecafluorodecyltrimethoxysilane, polyvinylidene fluoride, and a crosslinking agent , butyl titanate, stearic acid, aluminum diethylphosphinate, modified nanofibers, polyacrylonitrile organic fibers, flame retardants, anti-ultraviolet agents, stabilizers and toughening agents, among which, modified nanofibers The fiber is isocyanate triethoxysilane modified titanium boride nanofiber. The modified silicone rubber sheath material thus prepared not only improves the mechanical strength of the cable sheath, but also endows it with better oil stain resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of electric cables, in particular to an oil stain-resistant and corrosion-resistant modified silicone rubber sheath material and a preparation method thereof. Background technique [0002] Silicone rubber refers to the special rubber whose main chain contains silicon and oxygen atoms. Its main characteristics are high temperature resistance (up to 300°C) and low temperature resistance (minimum -100°C). It is currently the best cold and high temperature resistant rubber; at the same time Excellent electrical insulation, high stability to thermal oxidation and ozone, high chemical inertness. Silicone rubber has become the most potential variety of rubber in the power industry, and is widely used as the main rubber material for insulators, high-performance wires and cables and accessories. However, silicone rubber has the problems of poor oil resistance, solvent resistance, acid and alkali resistance, and diff...

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): C08L83/04C08L27/12C08L83/08C08L27/16C08L33/20C08K13/06C08K7/04C08K9/06C08K5/5419C08K5/10C08K5/09C08K5/5313C08K5/5425C08K5/5399C08K5/098C08K5/11H01B3/28
CPCC08L83/04C08L2201/02C08L2203/202C08L2205/02C08L2205/035C08L2205/16C08L2312/08H01B3/28C08L27/12C08L83/08C08L27/16C08L33/20C08K13/06C08K7/04C08K9/06C08K5/5419C08K5/10C08K5/09C08K5/5313C08K5/5425C08K5/5399C08K5/56C08K5/098C08K5/11
Inventor 魏亮
Owner ZHEJIANG DIHENG IND CO LTD
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