Improved dispersion and physico‐mechanical properties of rubber/silica composites through new silane grafting,Polymer Engineering and Science

当前位置： X-MOL 学术 › Polym. Eng. Sci. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Improved dispersion and physico‐mechanical properties of rubber/silica composites through new silane grafting
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2020-10-22 , DOI: 10.1002/pen.25541
Saikat Das ₁ , Santanu Chattopadhyay ₁ , Sawar Dhanania ₂ , Anil K. Bhowmick _{1,

3}

Affiliation

3‐Octanoylthio‐1‐propyltriethoxysilane (a new silane) grafted styrene butadiene rubber/ silica composites were prepared in the present work, where grafting weight percentage of the base rubber (0%, 2%, 4%, and 6%) and filler content of the composites (0, 5, 15, 35, and 50 phr) were varied to investigate dispersion of the filler in the rubber. A detailed quantitative study of morphology‐physical property relationship of the composites using dispersion degree parameter was carried out. Pronounced improvement of dispersion was observed with increasing grafting weight percentage of the base rubber. A mechanism of polymer to filler interaction was shown by Fourier transform infrared spectroscopy. The dispersion rate constant from the torque‐time curve increased with the grafting percentage. Bound rubber content and Payne effect measurement indicated improved rubber‐filler interaction for the grafted rubber compound. A relation between low strain modulus of the composites and grafting percentage was proposed. The nanoindentation studies gave further insight into the results. Other physico‐mechanical properties at different grafting weight percentages at particular filler loading (50 phr) and at different filler loadings at a particular grafting weight percentage (4%) were evaluated. The improved mechanical and dynamic mechanical properties with increasing grafting weight percentage are an indication that this methodology could be used in green tire application.

中文翻译：

通过新的硅烷接枝改善橡胶/二氧化硅复合材料的分散性和物理机械性能

在本工作中，制备了3-辛酰基硫基-1-丙基三乙氧基硅烷（一种新的硅烷）接枝的丁苯橡胶/二氧化硅复合材料，其中接枝重量百分比的基础橡胶（0％，2％，4％和6％）和填料改变复合材料的含量（0、5、15、35和50 phr）以研究填料在橡胶中的分散性。利用分散度参数对复合材料的形貌与物理性能关系进行了详细的定量研究。随着基础橡胶的接枝重量百分比的增加，观察到分散性的明显改善。傅立叶变换红外光谱显示了聚合物与填料相互作用的机理。扭矩时间曲线的分散率常数随接枝率的增加而增加。结合的橡胶含量和佩恩效应测量结果表明，接枝橡胶混合物的橡胶-填料相互作用得到改善。提出了复合材料的低应变模量与接枝率的关系。纳米压痕研究为结果提供了进一步的见识。在特定的填料负载量（50 phr）下，在不同的接枝重量百分比下，在特定的接枝重量百分比（4％）下，在不同的填料负载下，评估了其他物理力学性能。随着接枝重量百分比的增加，改善的机械性能和动态机械性能表明该方法可用于生胎应用。纳米压痕研究为结果提供了进一步的见识。在特定的填料负载量（50 phr）下，在不同的接枝重量百分比下，在特定的接枝重量百分比（4％）下，在不同的填料负载下，评估了其他物理力学性能。随着接枝重量百分比的增加，改善的机械性能和动态机械性能表明该方法可用于生胎应用。纳米压痕研究为结果提供了进一步的见识。在特定的填料负载量（50 phr）下，在不同的接枝重量百分比下，在特定的接枝重量百分比（4％）下，在不同的填料负载下，评估了其他物理力学性能。随着接枝重量百分比的增加，改善的机械性能和动态机械性能表明该方法可用于生胎应用。

更新日期：2020-12-14

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11