碳纳米管
成核
材料科学
超临界流体
纳米复合材料
超临界二氧化碳
硅橡胶
复合材料
化学工程
热分解
形态学(生物学)
天然橡胶
碳纤维
聚合物
聚二甲基硅氧烷
发泡剂
作者
Wanyu Tang,Jianwei Bai,Xia Liao,Wei Xiao,Yong Luo,Qi Yang,Guangxian Li
标识
DOI:10.1016/j.supflu.2018.01.001
摘要
Abstract The cell structure and performance of microcellular polymethylvinylsiloxane (PMVS)/carbon nanotubes (CNT) foam prepared by supercritical CO2 (scCO2) were investigated. The results showed that the uniformly dispersed CNT significantly reinforced the PMVS matrix because of the strong interaction between molecular chain and CNT. In addition, the onset thermal decomposition temperature of the nanocomposite was increased by 60 °C with the incorporation of CNT (0.5 wt%) compared with that of PMVS matrix. Furthermore, as a kind of heterogeneous nucleating agent, CNT could effectively decrease the nucleation energy barrier, resulting in the uniform cell morphology of PMVS/CNT foam with smaller cell size and higher cell density.
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