The Structures and Properties NR/Nd-BR/TBIR Self-supporting Rubber of Run-flat Tire

Hao WANG; Ri-guo WANG; Huai-tao* GE; Xue-bin REN; Bo LUAN

doi:10.14028/j.cnki.1003-3726.2021.01.007

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The Structures and Properties NR/Nd-BR/TBIR Self-supporting Rubber of Run-flat Tire

更新时间：2022-08-30

- The Structures and Properties NR/Nd-BR/TBIR Self-supporting Rubber of Run-flat Tire
- Polymer Bulletin Vol. 34, Issue 1, Pages: 54-60(2021)
- 作者机构：
  
  山东华聚高分子材料有限公司,滨州 256500
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2021.01.007
  CLC：
- Published：20 January 2021，
  
  Received：28 October 2019，
  
  Revised：20 November 2020，
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Hao WANG, Ri-guo WANG, Huai-tao* GE, Xue-bin REN, Bo LUAN. The Structures and Properties NR/Nd-BR/TBIR Self-supporting Rubber of Run-flat Tire. [J]. Polymer Bulletin 34(1):54-60(2021)
DOI：

Hao WANG, Ri-guo WANG, Huai-tao* GE, Xue-bin REN, Bo LUAN. The Structures and Properties NR/Nd-BR/TBIR Self-supporting Rubber of Run-flat Tire. [J]. Polymer Bulletin 34(1):54-60(2021) DOI： 10.14028/j.cnki.1003-3726.2021.01.007.

摘要

研究了三种丁二烯结构单元含量和门尼粘度不同的反式丁戊橡胶(TBIR)改性天然橡胶/稀土顺丁橡胶(NR/Nd-BR)并用高性能缺气保用轮胎胎侧支撑胶的结构与性能。结果表明

相比NR/Nd-BR(50/50)并用混炼胶

NR/Nd-BR/TBIR(45/45/10)并用混炼胶的Payne效应明显降低

填料网络结构明显削弱。填料分散度仪表明TBIR明显改善了炭黑在NR/Nd-BR并用橡胶基体中的分散

动态热机械性能分析仪(DMA)表明TBIR明显改善了NR与Nd-BR之间的相容性。NR和Nd-BR相容性的改善以及炭黑在橡胶基体中分散性的改善致使含TBIR的缺气保用轮胎胎侧支撑胶在力学强度基本不变的前提下

耐疲劳性能明显提高

滚动阻力和压缩生热降低。

Abstract

The structures and properties of natural rubber/Nd-based butadiene rubber (NR/Nd-BR) self-supporting rubber of run-flat tire modified with three kinds of trans-1

4-poly (butadiene-co-isoprene) copolymer rubber (TBIR) with different mooney viscosity and butadiene repeating units were invested. The results showed that

compared with NR/Nd- BR (50/50) compounds

NR/Nd-BR/TBIR (45/45/10) compounds showed lower Payne effect

the filler network structures weakened obviously. Carbon black dispersity test showed that NR/Nd-BR/TBIR vulcanizates presented excellent filler dispersion. Dynamic thermo-mechanical performance analyzer (DMA) showed that the compatibility between NR and Nd-BR was improved significantly after modified with TBIR. The obviously improved compatibility between NR and Nd- BR and better filler dispersion made NR/Nd-BR/TBIR self-supporting rubber of run-flat tire showed excellent fatigue resistance

lower rolling resistance and heat build-up.

关键词

反式丁戊橡胶相容性缺气保用轮胎胎侧支撑胶疲劳性能

Keywords

Trans-1 4-poly(butadiene-co-isoprene) copolymer rubberCompatibilityRun-flat tireSelf-supporting rubberFatigue resistance

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