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

Flame-retardant liquid silicone rubber of high tear resistance

A technology of liquid silicon and MQ silicone resin, applied in the field of silicone resin, can solve the problems of insufficient flame retardancy and tear resistance, insufficient storage stability, etc., achieve excellent tear resistance, improve flame retardancy, and good The effect of physical properties

Active Publication Date: 2013-03-20
ZHUHAI HENGWANG ELECTRONICS
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a flame-retardant high-tear-resistant liquid silicone resin, which solves the problems of existing liquid silicone resins used for surface coating of glass fiber sleeves, silicone tubes, glass fiber cloth, etc. The tear performance is not good enough, and the storage is not stable enough

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
  • Flame-retardant liquid silicone rubber of high tear resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1. Preparation of a flame-retardant and high-tear-resistant liquid silicone resin

[0024] A flame-retardant and high-tear-resistant liquid silicone resin, in parts by weight, comprising 100 parts of MQ silicone resin, 50 parts of linear phenyl vinyl siloxane as reactive diluent, and linear phenyl modified phenyl vinyl siloxane as crosslinking agent. 5 parts of hydrogen siloxane, 5 parts of fumed silicon dioxide as the reinforcing agent, and 0.01 part of dimethyl fumarate as the temperature-sensitive inhibitor.

[0025] The ratio of the M link to the Q link in the above-mentioned MQ silicone resin is 0.6.

[0026] The specific surface area of ​​the above-mentioned fumed silica is 160m 2 / g.

[0027] The linear phenyl vinyl siloxane comprises the following steps: 50 parts of bis(methylphenyl vinyl) disiloxane and 150 parts of diphenyl dimethoxysilane are put into the reactor, Raise the temperature to 85°C, add an appropriate amount of 30 parts of water and ...

Embodiment 2

[0034] Embodiment 2, preparation of a flame-retardant high-tear-resistant liquid silicone resin

[0035] A flame-retardant and high-tear-resistant liquid silicone resin, in parts by weight, comprising 150 parts of MQ silicone resin, 100 parts of linear phenyl vinyl siloxane as reactive diluent, and linear phenyl modified phenyl vinyl siloxane as crosslinking agent. 10 parts of hydrogen siloxane, 20 parts of fumed silica as a reinforcing agent, and 0.15 parts of dimethyl fumarate as a thermosensitive inhibitor.

[0036] The ratio of the M link to the Q link in the above-mentioned MQ silicone resin is 0.8.

[0037] The specific surface area of ​​the above-mentioned fumed silica is 300m 2 / g.

[0038] The linear phenyl vinyl siloxane comprises the following steps: 120 parts of bis(methylphenyl vinyl) disiloxane and 200 parts of diphenyl dimethoxysilane are put into the reactor, Raise the temperature to 100°C, add an appropriate amount of 40 parts of water and 8 parts of cataly...

Embodiment 3

[0045] Embodiment 3. Preparation of a flame-retardant and high-tear-resistant liquid silicone resin

[0046] A flame-retardant and high-tear-resistant liquid silicone resin, in parts by weight, including 120 parts of MQ silicone resin, 80 parts of linear phenyl vinyl siloxane as reactive diluent, and linear phenyl modified phenyl vinyl siloxane as crosslinking agent. 6 parts of hydrogen siloxane, 10 parts of fumed silica as a reinforcing agent, and 0.08 parts of dimethyl fumarate as a thermosensitive inhibitor.

[0047] The ratio of the M link to the Q link in the above-mentioned MQ silicone resin is 0.7.

[0048] The specific surface area of ​​the above-mentioned fumed silica is 240m 2 / g.

[0049] The linear phenyl vinyl siloxane comprises the following steps: 70 parts of bis(methylphenyl vinyl) disiloxane and 180 parts of diphenyl dimethoxysilane are put into the reactor, Raise the temperature to 95°C, add an appropriate amount of 32 parts of water and 7 parts of catalys...

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
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flame-retardant liquid silicone rubber of high tear resistance. The silicone rubber comprises in parts by weight the following components: 100-150 parts of MQ silicone resin, 50-100 parts of reactive diluent, which uses linear phenyl vinyl siloxane, 5-10 parts of cross-linking agent, which uses linear phenyl hydrosiloxane, 5-20 parts of reinforcing agent, which uses fumed silica, and 0.01-0.15 part of thermosensitive inhibitor, which uses dimethyl fumarate. Phenyl group is applied to pre-modifying the reactive diluent and the cross-linking agent in the preparation process of the reactive diluent and the cross-linking agent to greatly improve the flame retardant performance, the high temperature resistance and the volume resistance of the product. By combining the MQ-based silicone resin and the fumed silica in the preparation process of the silicone rubber, the prepared silicone rubber has a better physical performance and excellent tear strength.

Description

technical field [0001] The invention relates to silicone resin, in particular to a flame-retardant and high-tear-resistant liquid silicone resin used for surface coating of glass fiber sleeves, silicone tubes, glass fiber cloth and the like. Background technique [0002] Silicone resins are thermosetting polysiloxane polymers with a highly cross-linked structure. Early products were made from organochlorosilanes (such as MeSiCl 3 、Me 2 SiCl 2 , MePhSiCl 2 , PhSiCl 3 、Ph 2 SiCl 2 ) through hydrolytic condensation and rearrangement to prepare reactive silicone prepolymers that are stable at room temperature. When applied, it is further heated to shrink and cross-link into a harder or less elastic solid silicone. Silicone resin has good electrical insulation properties, temperature resistance and waterproof effect. And the weather resistance is better than general organic resin. Therefore, it is an ideal material for the coating of heat-resistant, heat-resistant and m...

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
IPC IPC(8): C08L83/04C08L83/07C08L51/08C08K3/36C08K5/11C08G77/20C08F283/12C09D183/04C09D183/07C09D151/08C09D7/12D06M15/643D06M11/79D06M13/224
Inventor 李讨饭赵强程琳根王晶李萍
Owner ZHUHAI HENGWANG ELECTRONICS
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