Study on volume change and scanning electron microscopy observation of silica-filled solution polymerized styrene–butadiene rubber/cis-1,4-polybutadiene rubber blends upon stretching,Microscopy Research and Technique

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Study on volume change and scanning electron microscopy observation of silica-filled solution polymerized styrene–butadiene rubber/cis-1,4-polybutadiene rubber blends upon stretching
Microscopy Research and Technique ( IF 2.0 ) Pub Date : 2021-05-12 , DOI: 10.1002/jemt.23814
Hao Zhang ₁ , Shanliang Zheng ₂ , Lina Zheng ₂ , Feng Liu ₁ , Yudian Song ₁ , Meng-Jiao Wang ₁

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Solution polymerized styrene–butadiene rubber/cis-1,4-polybutadiene rubber (SBR/BR) blends filled with silica is widely used system in tread compounds for passenger tires. The application of silane coupling agents greatly improves the interaction between polymer and filler through chemical bonds. By testing a series of SBR/BR blends filled with different specific surface area and content of silica, we measured the volume change data of the compounds upon stretching and plotted the corresponding ΔV/V-ε curves. In order to normalize for stress differences, ΔV/(Vσ)-ε curves were also plotted using stress–strain data. Scanning electron microscopy (SEM) was used to observe the microstructures in the vulcanizate in situ when stretched. The dispersion, agglomeration, and vacuole formation process can be visualized clearly in the SEM images.

中文翻译：

二氧化硅填充溶液聚合丁苯橡胶/顺1,4-聚丁二烯橡胶共混物拉伸时体积变化及扫描电镜观察研究

填充二氧化硅的溶液聚合丁苯橡胶/顺式 1,4-聚丁二烯橡胶 (SBR/BR) 共混物广泛用于乘用轮胎胎面胶中。硅烷偶联剂的应用大大提高了聚合物与填料之间通过化学键的相互作用。通过测试一系列填充不同比表面积和二氧化硅含量的 SBR/BR 共混物，我们测量了化合物在拉伸时的体积变化数据，并绘制了相应的ΔV/V - ε曲线。为了对应力差异进行归一化，ΔV/(Vσ) - ε还使用应力-应变数据绘制了曲线。使用扫描电子显微镜 (SEM) 观察拉伸时硫化橡胶的原位微观结构。在 SEM 图像中可以清楚地看到分散、团聚和液泡形成过程。

更新日期：2021-05-12

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