Elastomer nanocomposites with superior dynamic mechanical properties via trans-1, 4-poly (butadiene-co-isoprene) incorporation

Elastomer nanocomposites with superior dynamic mechanical properties via trans-1, 4-poly (butadiene-co-isoprene) incorporation
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通过反式 1, 4-聚(丁二烯-异戊二烯)掺入具有优异动态机械性能的弹性体纳米复合材料

DOI:
10.1016/j.compscitech.2018.02.025
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发表时间:
2018-04
影响因子:
9.1
通讯作者:
Aihua He
Aihua He
中科院分区:
材料科学1区
文献类型:
--
作者:
Xinping Zhang;Honghong Cui;Liyuan Song;Huicheng Ren;Riguo Wang;Aihua He

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将新型合成结晶反式- 1,4 -聚(丁二烯-co-异戊二烯)橡胶(tir)掺入传统的非晶态SSBR/BR共混物中,提出了一种高性能轮胎胎面料的新策略。化学交联后二氧化硅填充的SSBR/BR/ tir复合材料的力学性能比填充的SSBR/BR复合材料显著提高,如抗拉伸疲劳性能提高2-3倍,抗湿滑性和耐磨性提高,滚动阻力和热积降低等。进一步的讨论表明,晶体tir组分通过提高SSBR/BR/ tir橡胶基体的强度和模量,以及以tir层状原纤维形式调制橡胶基体的网络结构来改善二氧化硅的分散性,这两方面都有望大大提高抗拉疲劳性能和其他性能。在轮胎胎面料中加入tir将在不改变现有加工技术和配方的情况下为高性能轮胎生产提供解决方案。
A new strategy for high performance tire tread stocks is proposed by incorporating novel synthetic crystallinetrans-1, 4-poly (butadiene-co-isoprene) rubber (TBIR) into the traditional amorphous SSBR/BR blends. The silica filled SSBR/BR/TBIR composites after chemical crosslinking exhibited significantly improved dynamical properties compared with filled SSBR/BR composites, such as 2–3 times higher tensile fatigue resistance, improved wet-skid resistance and abrasion resistance, lower rolling resistance and heat built-up, etc. Further discussions revealed that crystalline TBIR components improved silica dispersion by increasing the strength and modulus of SSBR/BR/TBIR rubber matrix, and modulated network structures of the rubber matrix in the form of TBIR lamellar fibrils, both of which were expected to contribute to the greatly improved tensile fatigue resistance and other properties. The incorporation of TBIR in tire tread stocks will provide a solution for high performance tire production without changing the present processing technology and formulations.
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