材料科学
石墨烯
天然橡胶
硫黄
氧化物
延伸率
腈
丁腈橡胶
拉曼光谱
质量分数
化学工程
复合材料
极限抗拉强度
高分子化学
有机化学
化学
纳米技术
物理
工程类
光学
冶金
作者
S.-B. Chen,T.-X. Li,Songhan Wan,Xing Huang,Shuwei Cai,Xianru He
摘要
Abstract Insoluble sulfur (IS) is prepared at low temperature with graphene oxide (GO) as stabilizer and ammonium persulfate as initiator. The FTIR and Raman patterns show that the non-conjugate double bond of GO can couple to the long chain free radicals of IS. The TGA and EDS results show that the mass fraction of IS is 79.75 wt% in particles by refluxing method, much higher than that in particles by hydrothermal method, when the mass ratio in reactants of GO to sulfur was 3: 1. Under constant content of sulfur, the tensile stress and elongation at break of NBR/GO-S(h) and NBR/GO-S(r) composites are higher than those of NBR/Reduced GO composites with the addition of 3 phr GO-S(h), GO-S(r) and Reduced GO particles into NBR. It can provide a new technology for the preparation of IS with lower temperature, little energy consumption and less environmental pollution. It is also a new method for the modification and application of GO in rubber.
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