复配
材料科学
天然橡胶
复合材料
硫化
复合数
石墨烯
丁苯橡胶
极限抗拉强度
氧化物
纳米
聚合物
苯乙烯
纳米技术
共聚物
冶金
作者
Yingyan Mao,Shubai Zhang,Dandan Zhang,Tung W. Chan,Li Liu
标识
DOI:10.1088/2053-1591/1/2/025009
摘要
A new strategy was developed to prepare graphene oxide/styrene-butadiene rubber (GO/SBR) composites with highly exfoliated GO sheets and strong interfaces. In particular, GO/SBR microparticles, in which exfoliated GO sheets (with a thickness of ∼1 nm and diameter of tens of nanometers) are trapped in a well-dispersed state throughout the SBR matrix, were made by a combined latex-compounding and spray-drying method. Subsequently, a chemical bridge between GO and rubber matrix through KH550 and Si69 was built during vulcanization, and the interfacial strength of the cured GO/SBR composite was remarkably improved. Due to the highly exfoliated structure and the strong interface, the GO/SBR composite exhibited 7.8 times higher modulus at 300% strain and 6.4 times higher tensile strength compared with cured pure SBR. The combined latex-compounding and spray-drying method presented here is feasible and water-mediated and has great potential for industrial applications.
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