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Method for preparing ternarypolymerization rubber and application thereof

A terpolymer and rubber technology, which is applied in tire parts, rolling resistance optimization, transportation and packaging, etc., can solve the problem of reducing side group content and achieve excellent dynamic mechanical properties

Active Publication Date: 2012-11-28
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Mentioned a kind of method adopting anionic polymerization to synthesize ternary copolymerization rubber among the US 5,300,599, wherein adopted tetrahydrofurfuryl alkoxide and tetramethylethylenediamine (TMEDA) or tetrahydrofurfuryl alkoxide and tetrahydrofurfuryl alkoxide and The complex structure adjustment system of potassium alkoxide, which can reduce the side group content, but still requires low temperature initiation

Method used

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  • Method for preparing ternarypolymerization rubber and application thereof
  • Method for preparing ternarypolymerization rubber and application thereof
  • Method for preparing ternarypolymerization rubber and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In a 5-liter stainless steel stirred tank, under the protection of high-purity nitrogen, add 2288g cyclohexane, 71.8g styrene, 119.2g isoprene and 121.7g butadiene, then add 2.13mmol tetrahydrofurfuryl alcohol ethyl ether, in Add 2.65mmol of n-butyllithium at 40°C to initiate, react for 40 minutes, then add 0.28mmol of tin tetrachloride to the kettle, add 0.5g of isopropanol after 70 minutes to terminate, add 0.62g of anti-aging to the obtained glue Agent Irganox 1520, after the glue solution is condensed by water vapor, a star-shaped ternary copolymer rubber product is obtained. The structure of the measured copolymer is 19.8% by mass content of ST, 3.2% by mass content of micro-block ST, 13.2% by mass content of 1,2-BD, 25.6% by mass content of 1,4-BD, 3,4- The mass content of IP is 12.3%, and the mass content of 1,4-IP is 25.9%. In the dynamic viscoelastic spectrum of the polymer, the tanδ value at 0°C is 0.3201, and the tanδ value at 60°C is 0.1098. The physical d...

Embodiment 2

[0063] In a 5-liter stainless steel stirred tank, under the protection of high-purity nitrogen, 2288g of cyclohexane, 65.8g of styrene, 127.0g of isoprene and 119.2g of butadiene were added, and then 3.67mmol of tetrahydrofurfuryl butyl ether was added, Add 2.69mmol of n-butyllithium at 50°C to initiate the reaction for 40 minutes, then add 0.29mmol of tin tetrachloride to the kettle, add 0.5g of isopropanol after 70 minutes to terminate, and add 0.62g of the obtained glue Anti-aging agent Irganox 1520, after the glue solution is condensed by water vapor, a star-shaped ternary copolymer rubber product is obtained. The structure of the measured copolymer is 20.9% by mass content of ST, 0.2% by mass content of micro-block ST, 20.1% by mass content of 1,2-BD, 18.1% by mass content of 1,4-BD, 3,4- The mass content of IP is 22.6%, and the mass content of 1,4-IP is 18.1%. In the dynamic viscoelastic spectrum of the polymer, the tanδ value at 0°C is 0.9601, and the tanδ value at 60°...

Embodiment 3

[0065]In a 5-liter stainless steel stirred tank, under the protection of high-purity nitrogen, add 2288g cyclohexane, 66.5g styrene, 117.6g isoprene and 127.9g butadiene, then add 1.25mmol tetrahydrofurfuryl butyl ether and 0.13mmol of sodium dodecylbenzenesulfonate (SDBS), was initiated by adding 2.57mmol of n-butyllithium at 50°C, reacted for 40 minutes, then added 0.28mmol of tin tetrachloride to the kettle, and after 70 minutes Add 0.5 g of isopropanol to terminate, and add 0.62 g of anti-aging agent Irganox 1520 to the obtained glue, and after the glue is condensed by water vapor, a star-shaped ternary copolymer rubber product is obtained. The structure of the measured copolymer is 19.8% by weight of ST, 0.5% by weight of micro-block ST, 13.1% by weight of 1,2-BD, 27.9% by weight of 1,4-BD, 3,4- The mass content of IP is 11.7%, and the mass content of 1,4-IP is 26.0%. In the dynamic viscoelastic spectrum of the polymer, the tanδ value at 0°C is 0.2550, and the tanδ value...

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Abstract

The invention relates to a method for synthesizing a ternarypolymerization rubber of mono vinyl aromatic hydrocarbon, conjugated diene 1 and conjugated diene 2 through solution polymerization by taking compounded asymmetric ether and anion surface active agent serving as a structural regulator, the ternarypolymerization rubber of mono vinyl aromatic hydrocarbon, conjugated diene 1 and conjugated diene 2 prepared by the method and a product based on the copolymer rubber, such as a tyre. The copolymer rubber prepared by the method has high wet skid resistance and low rolling resistance.

Description

field of invention [0001] The invention relates to a ternary copolymer rubber, in particular to a terpolymer of conjugated diene 1, conjugated diene 2 and monovinylarene and a preparation method thereof. More specifically, the present invention relates to a complex structure adjustment system using an asymmetric ether and anionic surfactant to prepare a conjugated diene 1 / conjugated diene 2 / monovinylarene terpolymer by anionic polymerization method, the resulting copolymer rubber and articles based on said copolymer, such as tires and the like. Background technique [0002] With the development of the automobile industry, the requirements for all aspects of rubber suitable for automobile tire tread rubber are getting higher and higher, not only must it have good wear resistance, but also have high wet skid resistance and low rolling resistance, so that In order to meet the needs of safe driving and energy saving. The wet skid resistance and rolling resistance of rubber pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F236/10B60C1/00
CPCY02T10/86
Inventor 于国柱梁爱民华炜徐林王妮妮康新贺刘辉解希铭姜科李传清
Owner CHINA PETROLEUM & CHEM CORP