NIMTE OpenIR  > 2018专题
Noncovalent Functionalized Graphene-Filled Polyimides with Improved Thermal, Mechanical, and Wear Resistance Properties
Qin, Songlv; Cui, Mingjun; Dai, Zhendong; Qiu, Shihui; Zhao, Haichao; Wang, Liping; Zhang, Afang
2018
Source PublicationTRIBOLOGY LETTERS
Volume66Issue:2
AbstractA facile method is proposed to prepare poly-o-phenylenediamine (PoPD) noncovalent functionalized graphene (G)-reinforced polyimide (PI) nanocomposites. PoPD-G exhibited excellent dispersibility in various organic solvents. The structures of PoPD-G were characterized by Raman and UV spectrum, which verified the pi-pi interactions between PoPD and G. The effective exfoliation of graphene nanosheets was investigated by observation of the morphology of PoPD-G with SEM, SPM, and TEM. Compared to PI/G composites, the interfacial adhesion between graphene nanosheets and PI matrices promoted efficient stress transfer from PI chains to PoPD-G nanofillers. Polyimide nanocomposites with different incorporations of PoPD-G exhibited outstanding thermal properties. It is interesting to note that only 0.5 wt% PoPD-G-reinforced PI composites increased by 20.8% in hardness, enhanced by 84.0% in storage modulus, and reduced by 72.8% in wear rate compared with neat PI. The eminent enhancement was attributed to the facile dispersion of graphene nanosheets and strong interface adhesion between PI and PoPD-G.
KeywordIn-situ Polymerization Tribological Properties Polyimide/graphene Nanocomposites Carbon Nanotubes Composites Films Oxide Temperature Performance Nanofiber
Subject AreaPhysics
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/17459
Collection2018专题
Recommended Citation
GB/T 7714
Qin, Songlv,Cui, Mingjun,Dai, Zhendong,et al. Noncovalent Functionalized Graphene-Filled Polyimides with Improved Thermal, Mechanical, and Wear Resistance Properties[J]. TRIBOLOGY LETTERS,2018,66(2).
APA Qin, Songlv.,Cui, Mingjun.,Dai, Zhendong.,Qiu, Shihui.,Zhao, Haichao.,...&Zhang, Afang.(2018).Noncovalent Functionalized Graphene-Filled Polyimides with Improved Thermal, Mechanical, and Wear Resistance Properties.TRIBOLOGY LETTERS,66(2).
MLA Qin, Songlv,et al."Noncovalent Functionalized Graphene-Filled Polyimides with Improved Thermal, Mechanical, and Wear Resistance Properties".TRIBOLOGY LETTERS 66.2(2018).
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