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

A kind of fluorosilicone isoprene rubber and preparation method thereof, wide temperature range high-strength aviation tire rubber material and preparation method thereof

A technology of silicone isoprene rubber and isoprene, which is applied in the field of fluorosilicone isoprene rubber and its preparation, wide temperature range high-strength aviation tire rubber material and its preparation, and can solve the problems of high instantaneous load, high inflation internal pressure, Problems such as large heat generation, to achieve the effect of broadening the application range, improving performance, and reducing heat generation

Active Publication Date: 2021-03-02
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high-speed take-off and landing of aviation tires with high instantaneous load, high heat generation, fast speed, large sinking, large deformation and high inflation internal pressure, the traditional wide temperature range fluorosilicone rubber can be used under extreme conditions (such as ultra- High temperature) The mechanical properties are poor, which cannot meet the requirements of high-performance aviation radial tire tread rubber and sidewall 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
  • A kind of fluorosilicone isoprene rubber and preparation method thereof, wide temperature range high-strength aviation tire rubber material and preparation method thereof
  • A kind of fluorosilicone isoprene rubber and preparation method thereof, wide temperature range high-strength aviation tire rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] The present invention also provides a preparation method of fluorosilicone isoprene rubber, comprising the following steps:

[0056] 1) Under the action of a metal catalyst, after reacting isoprene, an organoaluminum compound, an organoboron salt and a good solvent, a reaction system is obtained;

[0057] 2) Add fluorine-containing siloxane to the reaction system obtained in the above steps, continue the reaction, stop the reaction, and perform post-treatment to obtain fluorosilicone isoprene rubber.

[0058] In the present invention, the selection, composition and structure of the materials in the above preparation method, as well as the corresponding optimization principles, can preferably correspond to the selection, composition and structure of the materials in the aforementioned fluorosilicone isoprene rubber, and the corresponding optimization principles. No more details here.

[0059] In the invention, firstly, under the action of a metal catalyst, a reaction sy...

Embodiment 1

[0109] (1) prepare fluorosilicone isoprene rubber;

[0110] Add 25μmol rare earth metal catalyst, 10ml toluene, 50μmol AlMe 3 , 5mmol isoprene, 25μmol[Ph 3 C][B(C 6 f 5 ) 4 ], after reacting at 0°C for 24h under constant stirring, add 5mmol trifluoropropylmethylcyclotrisiloxane, continue to react for 24h, add 30mL containing 5% 2,6-di-tert-butyl-4-methylphenol ethanol to stop the reaction; the reaction solution was precipitated with ethanol to precipitate solid matter, and the solid matter was vacuum-dried at 40° C., and the solvent was removed to constant weight to obtain 2.68 g of fluorosilicone isoprene rubber with a conversion rate of 100%. .

[0111] (2) Mixing and vulcanization

[0112] In 150g of fluorosilicone isoprene rubber prepared in step (1), 1.5g of graphene oxide, 1.5g of stearic acid, 1.5g of zinc oxide, 1.5g of heat stabilizer, 1.5g of anti-aging agent, 0.75g of accelerator, Sulfur 1.5g, pressurized at 10MPa, kneaded at 80°C, added each component separa...

Embodiment 2

[0118] (1) prepare fluorosilicone isoprene rubber;

[0119] Add 30μmol rare earth metal catalyst, 15ml toluene, 90μmol AlMe 3 , 10mmol isoprene, 50μmol[Ph 3 C][B(C 6 f 5 ) 4 ], after reacting at 25°C for 48h under constant stirring, add 2mmol trifluoropropylmethylcyclotrisiloxane, continue to react for 48h, add 35mL containing 5% 2,6-di-tert-butyl-4-methylphenol ethanol to stop the reaction; the reaction solution was precipitated with ethanol to precipitate solid matter, and the solid matter was vacuum-dried at 50° C., and the solvent was removed to constant weight to obtain 1.62 g of fluorosilicone isoprene rubber with a conversion rate of 100%. .

[0120] (2) Mixing and vulcanization

[0121] In the fluorosilicone isoprene rubber 100g described in step (1), add graphene oxide 2g, stearic acid 2g, zinc oxide 1g, heat stabilizer 1g, anti-aging agent 1.5g, accelerator 2g, sulfur 2g successively, add Press 13MPa, knead at 100°C, add each component separately, mix for 10 m...

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
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention provides a fluorosilicone isoprene rubber, which is obtained by copolymerizing isoprene monomers and fluorine-containing siloxane monomers. The present invention regulates the block copolymerization of appropriate isoprene monomers with cis-1,4-configuration and fluorosilicon polymers by way of block copolymerization, so as to better regulate the segment structure, length and polydispersity etc. to achieve controllable synthesis, to modify fluorosilicone polymers and polyolefins, and to organically combine the excellent properties of fluorosilicone rubber, such as aging resistance and high and low temperature resistance, with the high elasticity and high tensile strength of isoprene rubber. , thereby improving the performance of the new material and broadening its application range. The fluorosilicone isoprene rubber prepared by the invention is used in the rubber composition to obtain a novel wide-temperature range high-strength aviation tire rubber material with excellent comprehensive performance, so that it can be more adaptable to the use environment under extreme conditions.

Description

technical field [0001] The invention belongs to the technical field of rubber composite materials, and relates to a fluorosilicone isoprene rubber and a preparation method thereof, a rubber material and a preparation method thereof, in particular to a fluorosilicone isoprene rubber and a preparation method thereof, and a wide temperature range high-strength aviation tire Rubber material and method for its preparation. Background technique [0002] Fluorosilicone rubber (FMVQ), the main chain is composed of silicon and oxygen atoms, with a silicon-oxygen bond as the main chain structure, and a linear polymer with fluoroalkyl or fluoroaryl groups introduced into the side chain connected to silicon, with a molecular weight of 50-80 Among them, poly(3,3,3-trifluoropropylmethyl) silicone rubber is mass-produced and widely used. [0003] Silicone polymers usually have excellent properties such as high and low temperature resistance (-60 ° C ~ -310 ° C), aging resistance, radiatio...

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 Patents(China)
IPC IPC(8): C08F297/06C08L9/00C08K13/02C08K3/22C08K3/04C08K5/09C08K3/06
CPCC08F297/06C08K3/06C08K3/22C08K5/09C08K13/02C08K2003/2296C08L2201/08C08K3/042C08L9/00
Inventor 白晨曦贺剑云代全权祁彦龙崔龙
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - 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