Effect of Graphite Nanofibers on Poly(methyl methacrylate) Nanocomposites for Bipolar Plates

Bulletin of the Korean chemical society

Soo Jin Park¹  Min Kang Seo¹ 

关键词: Graphite nanofibers;    Polymer;    Composite materials;    Thermal properties;    Mechanical properties;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

In this work, high-aspect-ratio graphite nanofibers (GNFs) were used to improve the electrical, thermal, and mechanical properties of the poly(methyl methacrylate) (PMMA) polymer, as well as those of PMMA composites suitable for use in bipolar plates. In the result, an electrical percolation threshold for the composites was formed between 1 and 2 wt% GNF content. This threshold was found to be influenced strongly by the three separate stages of the meltblending process. The composites exhibited higher thermal and mechanical properties and lower thermal shrinkage compared with the neat PMMA. Thus, GNFs were demonstrated to have positive impacts on the thermo-mechanical properties of PMMA composites and showed, thereby, reasonable potential for use in composites employed in the fabrication of bipolar plates.

【 授权许可】

Unknown