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SIBR integrated rubber containing amino group, integrated rubber composite material and preparation method thereof

A technology that integrates rubber and groups, applied in tire parts, transportation and packaging, special tires, etc., can solve the problems of difficult structure control, difficult amine functionalization conversion efficiency, and difficult to grasp the relationship between structure and performance.

Active Publication Date: 2021-06-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since SIBR integrated rubber is a ternary polymer of butadiene, isoprene, and styrene, the structure is complex and difficult to control. At the same time, the theory and method of the ternary copolymerization reaction process are not yet mature, and the structural composition analysis, especially the sequence structure The analysis is difficult, and the deep-level relationship between structure and performance is not easy to grasp. Therefore, under the premise that the preparation process of SIBR integrated rubber is not mature, the process of amine functionalization is controlled and at the same time achieves high conversion efficiency of amine functionalization. It is more difficult, and SIBR integrated rubber with amine functionalization has not been prepared yet

Method used

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  • SIBR integrated rubber containing amino group, integrated rubber composite material and preparation method thereof
  • SIBR integrated rubber containing amino group, integrated rubber composite material and preparation method thereof
  • SIBR integrated rubber containing amino group, integrated rubber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Under the protection of argon, 100ml of solvent benzene, 200ml of cyclohexane, 1-[4-(N,N-dimethylamino)phenyl]-1'- 5g phenylethylene, 0.2g styrene, heat up to 60°C, turn on and stir until the 1,1-diphenylethylene derivatives containing amino groups (amino DPE derivatives, the same below) are completely dissolved, according to the design Molecular weight 200kg / mol Add initiator sec-butyllithium, react for 60min; add tetramethylethylenediamine (TMEDA) 0.1g, styrene 7.8g, isoprene 16g, butadiene 16g at the same time, continue to react for 24h, The addition of isopropanol was terminated, the reaction mixture was precipitated in excess anhydrous methanol, and the resulting polymer was dried in a vacuum oven to constant weight. The product structure analysis results are as follows: based on 100% of the total amount of the tetrapolymer, the mass percentage of bound styrene in the tetrapolymer is 18.6%, 1-[4-(N,N-dimethylamino)phenyl ]-1'-phenylethylene content mass percentage...

Embodiment 2

[0039] Under the protection of argon, add 100ml of solvent benzene, 200ml of cyclohexane, and 1,1'-bis[4-(N,N-dimethylamino)phenyl] to a 1L polymerization reactor that has been dried and deoxygenated Ethylene 10g, Tetramethylethylenediamine (TMEDA) 0.1g, Styrene 7.5g, Isoprene 16g, Butadiene 16g, heat up to 60°C, turn on and stir until the amine-based DPE derivative is completely dissolved, according to the designed molecular weight Add monomer 1,1-diphenylethylene derivative, styrene 0.5g and butyllithium equimolar reaction liquid initiator at 200kg / mol, react for 24h, add isopropanol to terminate, and the reaction mixture is precipitated in excess anhydrous methanol , and the resulting polymer was dried in a vacuum oven to constant weight. The product structure analysis results are as follows: based on 100% of the total amount of the tetrapolymer, the mass percentage of bound styrene in the tetrapolymer is 18.3%, 1,1'-bis[4-(N,N-dimethylamine Base) phenyl] ethylene content ...

Embodiment 3

[0041] Under the protection of argon, add 100ml of solvent benzene, 260ml of cyclohexane, and 1,1'-bis[4-(N,N-diethylamino)phenyl] to a 1L polymerization reactor that has been dried and deoxygenated Ethylene 12.5g, styrene 1g, heat up to 50°C, turn on and stir until the amine-based DPE derivative is completely dissolved, add the initiator n-butyllithium according to the design molecular weight of 100kg / mol, and react for 60min; then add tetramethylethylenediamine in sequence (TMEDA) 0.093g, styrene 3g, isoprene 12g, butadiene 24g, continue to react for 24h, add isopropanol to terminate, the reaction mixture is precipitated in excess anhydrous methanol, and the obtained polymer is dried in a vacuum oven to constant weight. The product structure analysis results are as follows: based on 100% of the total amount of the tetrapolymer, the mass percentage of bound styrene in the tetrapolymer is 10.3%, 1,1'-bis[4-(N,N-diethylamine Base) phenyl] ethylene content mass percentage is 4....

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Abstract

The invention relates to SIBR integrated rubber containing an amino group, an integrated rubber composite material and a preparation method thereof. The SIBR integrated rubber is a quadripolymer of styrene, isoprene, butadiene and an amino group-containing monomer 1,1-diphenylethylene derivative initiated by alkyl lithium, and a polymer chain contains not less than 3 amino functionalized diphenylethylene derivative units. Amino on the introduced diphenylethylene derivative and hydroxyl on the surface of reinforcing filler carbon black or white carbon black can form a strong filler network locally on the rubber material in the form of ionic bonds or hydrogen bonds, meanwhile, introduction of an amino functional group can passivate the movement ability of a rubber molecular chain so as to limit movement friction heat generation of a macromolecular chain end, finally, the purposes of reducing internal friction heat generation of the tire and improving the reinforcing effect of the carbon black and the white carbon black are achieved, and the rubber composite material is endowed with the properties of high modulus and low energy consumption. The SIBR integrated rubber is simple and easy to implement, low in cost, easy to industrialize and wide in application range, and has good economic benefits and social effects.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and in particular relates to an SIBR integrated rubber containing amino groups, an integrated rubber composite material and a preparation method thereof. Background technique [0002] Tread rubber, as an important part of the tire in direct contact with the ground, is one of the key components for preparing double B-grade tires. At present, the commonly used tire tread rubbers include styrene-butadiene rubber, butadiene rubber, and natural rubber. These general-purpose tread rubbers often have some shortcomings in low temperature resistance, wet skid resistance, and rolling resistance. The molecular chains of butadiene rubber and natural rubber are very supple, with low glass transition temperature, good low temperature resistance and low rolling resistance, but their wet skid resistance is not good; there are certain side groups on the molecular chain of styrene butadiene ru...

Claims

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Application Information

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IPC IPC(8): C08F297/04C08F236/10C08F212/08C08F212/32C08F230/08C08L9/06C08L53/02C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06B60C1/00
CPCC08F297/048C08F236/10C08F212/08C08L9/06C08L53/02B60C1/0016C08K2003/2296C08F212/32C08F230/085C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06
Inventor 李杨张松波冷雪菲韩丽马红卫王艳色魏志勇
Owner DALIAN UNIV OF TECH
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