Category: Transient Plane Source
Author(s): Genjiu Xu, Hu Liu, Junwei Gua, Kunpeng Ruan, Qiuyu Zhang, Tengbo Ma, Xutong Yang, Yalan Wu, Yongqiang Guo, Zhanhu Guo
Keywords: Chemical modified (CMG), Electrospinning, In-Situ Polymerization, polymeric matrix, Thermal Conductivity, thermally conductive model, thermally conductive nanocomposites, Transient plane source (TPS) method
Abstract: Chemically modified graphene (CMG) was obtained by combining aminopropyllsobutyl polyhedral oligomeric silsesquioxane (NH2-POSS) and hydrazine monohydrate to functionalize graphene oxide (GO). CMG and polyimide (PI) were combined to create the CMG/PI nanocomposite. The properties of this nanocomposite were obtained using a variety of methods. The thermal conductivity measurements were performed using a TPS instrument by utilizing the transient plane source (TPS) method. It was found that the thermal conductivity of the CMG/PI nanocomposites were all increased with increasing the CMG loading. The thermal conductivity of the CMG/PI nanocomposite with 5 wt% CMG was significantly improved to 1.05 W/mK (from 0.28 W/mK for a pristine PI matrix). The experimentally obtained thermal conductivity values and the values from the proposed thermally conductive model were also consistent with one another.
Reference: Journal of Materials Chemistry C (2018), 6:3004-3015
DOI: 10.1039/c8tc00452h