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Styrene-butadiene rubber (SBR)-nanocarbon filled master batches and uses thereof

A technology of styrene-butadiene rubber and nano-carbon, which is applied in the field of reinforced rubber composition and preparation of reinforced SBR masterbatch with nano-carbon as a reinforcing agent, which can solve the problem of inability to produce physical performance and mechanical strength masterbatch or rubber composition, and cannot provide Issues such as effective dispersion of nanocarbon

Inactive Publication Date: 2017-05-24
AMRIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Blending CNTs with SBR using conventional methods does not yield a masterbatch or rubber composition with the desired physical properties and mechanical strength for commercial use
It is generally recognized that the root cause of this problem is related to the poor dispersion of nanocarbons in the SBR matrix due to the high viscosity of the rubber, and it is also recognized that conventional mixing equipment such as two-roll mills, kneaders, and closed Mixers or even twin-screw extruders do not provide efficient dispersion of nanocarbons within the SBR (rubber) matrix

Method used

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  • Styrene-butadiene rubber (SBR)-nanocarbon filled master batches and uses thereof
  • Styrene-butadiene rubber (SBR)-nanocarbon filled master batches and uses thereof
  • Styrene-butadiene rubber (SBR)-nanocarbon filled master batches and uses thereof

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Embodiment Construction

[0045] The present invention relates to a nano-carbon reinforced masterbatch composition of SBR, a preparation method thereof, and an application thereof in reinforced rubber compounds or compositions containing nano-carbon reinforced SBR with nano-carbon and carbon black as reinforcing agents.

[0046] SBR masterbatch

[0047] Styrene-butadiene rubber (SBR) is a copolymer of styrene and butadiene. SBRs with variable properties are possible due to the variability in the arrangement of the structural units and the content of styrene and butadiene in the copolymer molecule. For example, low styrene content SBR (3% to 13% styrene) is more suitable for rubber products with low temperature applications, while SBR with higher styrene content (about 15%) is compatible with acrylonitrile-butadiene rubber ( NBR) combined for the production of radial tires. SBR with higher styrene content is called self-reinforcing rubber (40% to 55% styrene) or filler (70% to 90% styrene). In genera...

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Abstract

The present invention relates to the use of nanocarbon (carbon nanotubes and / or carbon nanofibers) in the preparation of reinforced (filled) styrene-butadiene rubber (SBR). Furthermore, the present invention relates to a method of preparing reinforced SBR master batches having nanocarbon as reinforcing agent, with the nanocarbon being uniformly predispersed within the SBR, and also relates to reinforced rubber compositions containing the reinforced SBR which have nanocarbon and carbon black as reinforcing agents, and to uses thereof.

Description

[0001] field of invention [0002] The invention relates to the use of nanoscale carbon structure (nano carbon) in preparing reinforced (filled) styrene-butadiene rubber (SBR). More particularly, the present invention relates to a method for preparing a reinforced SBR masterbatch with nanocarbon as a reinforcing agent, wherein nanocarbon is uniformly pre-dispersed in SBR, and the reinforced SBR with nanocarbon and carbon black as a reinforcing agent is included A reinforced rubber composition, and uses thereof. [0003] technical background [0004] Styrene-butadiene rubber (SBR) is a synthetic rubber derived from styrene and butadiene. SBR has a variety of industrial applications ranging from the use of SBR elastomers in chewing gum and adhesives to the incorporation of SBR into rubber products including pneumatic car and truck tires, hoses, footwear and conveyor belts. Currently, about 50% of car tires are made from SBR, where it is especially used in the manufacture of tir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/08C08J3/215C08J3/22C08K3/04C08K7/24
CPCC08J3/226C08J2309/08C08K2201/011C08J3/16C08J2409/08C08J3/215C08K3/041C08L9/08C08J3/22C08K3/04C08K7/00C08L9/06C08K2201/001
Inventor S·伊斯玛尔A·萨姆苏里
Owner AMRIL