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Modified fluorosilicone isoprene rubber and preparation method thereof, bionical type aircraft tyre rubber material and preparation method thereof

A silicon isoprene rubber, rubber material technology, applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of high instantaneous load, high inflation pressure, fast speed, etc., to broaden the scope of application, high fracture Elongation, performance improvement effect

Active Publication Date: 2018-08-17
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high-speed take-off and landing of aviation tires, the instantaneous load is high, the heat is large, the speed is fast, the sinking is large, the deformation is large, and the inflation internal pressure is high. Poor performance, unable to meet the requirements of high-performance aviation radial tire tread compound and sidewall compound

Method used

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  • Modified fluorosilicone isoprene rubber and preparation method thereof, bionical type aircraft tyre rubber material and preparation method thereof
  • Modified fluorosilicone isoprene rubber and preparation method thereof, bionical type aircraft tyre rubber material and preparation method thereof
  • Modified fluorosilicone isoprene rubber and preparation method thereof, bionical type aircraft tyre rubber material and preparation method thereof

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preparation example Construction

[0075] The present invention also provides a preparation method of modified fluorosilicone isoprene rubber, comprising the following steps:

[0076] 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;

[0077] 2) adding fluorine-containing siloxane to the reaction system obtained in the above steps, continuing the reaction, and after stopping the reaction, post-processing to obtain fluorosilicone isoprene rubber;

[0078] 3) Epoxidizing the fluorosilicone isoprene rubber, the epoxidation reagent and the good solvent in the above steps to obtain the epoxidized fluorosilicone isoprene rubber;

[0079] 4) Treat the epoxidized fluorosilicone isoprene rubber obtained in the above steps with acid, perform condensation reaction with proteinoid, coupling agent and condensation reaction catalyst, and post-treat again to obtain modified fluorosilicone isoprene rubber.

[008...

Embodiment 1

[0147] (1) prepare fluorosilicone isoprene rubber;

[0148] 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%. .

[0149] (2) preparing protein-modified fluorosilicone isoprene rubber;

[0150] Add 80 parts of the fluorosilicone isoprene rubber, m-chloroperoxybenzoic acid, and toluene in sequence in the reaction kettle, stir and react to obtain epoxidized fluorosilicone isoprene rubber, add 5 parts of spider silk-like protein, six Methyle...

Embodiment 2

[0159] (1) prepare fluorosilicone isoprene rubber;

[0160] 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%. .

[0161] (2) preparing protein-modified fluorosilicone isoprene rubber;

[0162]90 parts of said fluorosilicone isoprene rubber, m-chloroperoxybenzoic acid and toluene were sequentially added into the reaction kettle, and the reaction was stirred to obtain epoxidized fluorosilicone isoprene rubber. After acid treatment, 10 par...

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Abstract

The invention provides a modified fluorosilicone isoprene rubber, which is prepared from isoprene monomers, fluorine-containing siloxane monomers and proteinoid. According to the invention, a mode ofblock copolymerization is utilized to regulate appropriately isoprene monomers so as to be subjected to block copolymerization with fluorosilicone macromolecules by cis-1,4-configuration, the segmentstructure, length and polydispersity are better regulated and controlled, and controllable synthesis is realized; by modifying the fluorosilicone macromolecules and polyolefin mutually, combining excellent characteristics of anti-ageing property, high and low temperature resistance of fluorosilicone rubber and the like with the features of high elasticity, high tensile strength and the like, especially selecting proteinoid with a secondary structure, then combining with fluorosilicone isoprene rubber, the high-efficiency artifically synthesized bionical type modified fluorosilicone isoprene rubber with controllable low protein level and excellent mechanical property of super strength, elasticity and the like is prepared, so that the properity of a new material is improved, and the application range of the new material is widened.

Description

technical field [0001] The invention belongs to the technical field of rubber composite materials, and relates to a modified fluorosilicone isoprene rubber and a preparation method thereof, a rubber material and a preparation method thereof. In particular, it relates to a protein-modified fluorosilicone isoprene rubber and a preparation method thereof, a bionic aviation tire rubber material and a preparation method thereof. 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 mainly mass-produced and widely used. [0003] Silicone polymers usually have excellent properties such as high and low temperature resistance (-60 ° C ~ -310 ° C), aging resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/02C08K13/02C08K5/09C08K3/22C08L87/00B60C1/00
CPCB60C1/0016B60C1/0025C08G81/02C08K3/22C08K5/09C08K13/02C08K2003/2296C08L87/005
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
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