Application of two-dimensional MoS2 nanosheets in the property improvement of polyimide matrix: Mechanical and thermal aspects
Application of two-dimensional MoS2 nanosheets in the property improvement of polyimide matrix: Mechanical and thermal aspects
复制标题
二维MoS2纳米片在聚酰亚胺基体性能改进中的应用:机械和热学方面
DOI:
10.1016/j.compositesa.2017.01.018
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发表时间:
2017-04
期刊:
影响因子:
--
通讯作者:
Shengrong Yang
中科院分区:
文献类型:
--
作者:
Hong Yuan;Xiaohong Liu;Limin Ma;Zhigang Yang;Honggang Wang;Jinqing Wang;Shengrong Yang
Two dimensional (2D) MoS2nanosheets are firstly exfoliated by high shear mixing technique and then incorporated into PAA precursors to form the MoS2/PI nanocomposite films, and the preparation can be accomplished via in-situ polymerization, tape casting and thermal imidization processes. As a result, the mechanical and thermal properties of the prepared MoS2/PI nanocomposite films are significantly enhanced by incorporation of a small amount of MoS2nanosheets without any surface modification. Especially, 43% and 47% increases in tensile strength and Young’s modulus can be respectively achieved upon adding certain small amount of MoS2(0.75 wt% or so). Meanwhile, the glass transition temperature (Tg) can be effectively improved by 11 °C by taking advantages of unique superior thermal stability of MoS2nanosheets. This desirable fabrication of MoS2/PI nanocomposite films is expected to offer a new avenue on the development of high strength PI-based nanocomposites with comprehensive performances.
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