Dispersion and dynamic property in SBR/silica composites: Revisiting the utilization of benzyl chloride silane

Abstract

Separating the effects of interfacial interaction on rubber performance from those of the dispersion state remains challenging, as an improvement in both properties is often observed upon addition of an interfacial modifier. In this work, 4-(chloromethyl) phenyltrimethoxysilane, a silane-bearing benzyl chloride, is used as the model substance to modify a SBR/silica composite. Although an improvement in dispersion, as indicated by morphological observations and rheological measurements, is achieved, the dynamic property indicated by the mechanical loss and heat build-up, deteriorates. Such outcomes are attributed to the inferior interfacial interaction and decreased crosslink density. As a comparison, the counterpart modified by bis(triethoxysilylpropyl) tetrasulfide possesses a superior dynamic property which is attributed to the simultaneous improvements in the dispersion and interfacial interaction. This work provides new insights for the design of high performance rubbers used under dynamic circumstances. POLYM. COMPOS., 37:446-454,

Correlations in rheological behavior between large amplitude oscillatory shear and steady shear flow of silica‐filled star‐shaped styrene‐butadiene rubber compounds: Experiment and simulation

“…Several studies have been conducted on LAOS behavior of uncured filled rubber compounds. The Payne effect, mentioned earlier, is also observed in unvulcanized filled rubber compounds, including SBR/silica compounds 99–115 . It has been shown that the Payne effect increases with silica loading, surface area, and aspect ratio.…”

The rubber–filler interaction and reinforcement in styrene butadiene rubber/devulcanize natural rubber composites with silica–graphene oxide

“…The SEM micrograph of SBR/SiO 2 vulcanizates as shown in Fig. 2a indicates that silica is unevenly dispersed in the SBR matrix as large agglomerates because of the formation of hydrogen bonds among the abundant silanol groups on its surface [34]. On the contrary, the SBR/GO vulcanizates as presented in Fig.…”

Influence of dispersion of nanofillers and interface interaction on dynamic performance of rubber composites

“…然而, 将含有苄基氯的硅烷偶联剂应用于 丁苯橡胶, 得到的橡胶复合材料在动态性能方面却 没有提高. Feng等人 [51] 图 4 (网络版彩色)白炭黑修饰机理示意图 [52] Figure 4 (Color online) Schematic diagram of the modification mechanism of silica [52] 相比于TESPT, 单官能团的偶联剂如双(二甲基 [53] .…”