The crystallization behaviors and rheological properties of polypropylene/graphene nanocomposites: The role of surface structure of reduced graphene oxide

被引：22
作者：
Chen, Yang [1 ]
Yin, Qing [1 ]
Zhang, Xumin [1 ]
Xue, Xiaodong [1 ]
Jia, Hongbing [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Jiangsu, Peoples R China
来源：
THERMOCHIMICA ACTA | 2018年 / 661卷
关键词：
Reduced graphene oxide; Surface structure; Crystallization behaviors; Rheological properties; MECHANICAL-PROPERTIES; EXFOLIATED GRAPHENE; THERMAL-STABILITY; REDUCTION DEGREE; KINETICS; NANOPLATELETS; COMPOSITES; BLENDS; RUBBER;
D O I：
10.1016/j.tca.2018.01.021
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this work, polypropylene (PP)/reduced graphene oxide (RGO) with various surface structures were fabricated. The crystallization behaviors and non-isothermal crystallization kinetics of PP/RGO nanocomposites were thoroughly studied. The results showed that the crystallization peak temperature, crystallization rate as well as crystallization degree of PP/RGO nanocomposites were greatly enhanced with the increase of reduced extent of RGO. Non-isothermal crystallization kinetics displayed that RGO with high reduction extent exhibited strong nucleation ability, which could decrease crystallization activation energy and accelerate the crystallization process. The rheological behaviors of the PP/RGO nanocomposites were also investigated. It was found that the non-newtonian behaviors of PP nanocomposites became stronger with the increase of reduction extent of RGO.
引用
收藏
页码：124 / 136
页数：13
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