Aging properties of styrene-butadiene rubber nanocomposites filled with carbon black and rectorite

作者：He, Shaojian; Bai, Fujun; Liu, Shanxin; Ma, Hongfei; Hu, Jianbin; Chen, Lin; Lin, Jun^*; Wei, Gaosheng; Du, Xiaoze

来源：Polymer Testing, 2017, 64: 92-100.

DOI：10.1016/j.polymertesting.2017.09.017

• Rectorite
• Carbon black
• Thermal aging
• Styrene-butadiene rubber

To better understand the effect of rectorite and carbon black (CB) on the aging performance of styrene butadiene rubber (SBR), SBR/CB, SBR/CB/rectorite and SBR/rectorite nanocomposites with the same total filler loading were prepared. The microstructure of the three SBR nanocomposites was characterized by XRD, TEM and SEM. After thermal aging, oxygen-containing molecules were found to be formed in the SBR nanocomposites, as verified by FTIR analysis. The SBR/rectorite nanocomposite showed the highest aging coefficient and the lowest change rate of tensile strength and stress at 100% strain among the three SBR nanocomposites, indicating that the introduction of nano-dispersed rectorite layers can enhance the thermal aging resistance of the nanocomposites. For the SBR/CB/rectorite nanocomposite, the addition of CB helped to improve the interfacial compatibility between the filler and matrix, resulting in the best crack resistance as the aged SBR/CB/rectorite nanocomposite always demonstrated the least cracks on the surface during either stretching or bending experiments.

• 出版日期2017-12
• 单位华北电力大学（保定）; 华北电力大学