Effects of In Situ Exfoliation of Graphite via Dry Ball Milling on Thermal Conductivity and Mechanical Properties of Polystyrene Composites

被引：0

作者：

Wang H. ^{[1
]}

Guo Y. ^{[1
]}

Zhang Y. ^{[1
]}

Wu H. ^{[1
]}

Guo S. ^{[1
]}

机构：

[1] State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology, Chengdu

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2022年 / 38卷 / 09期

关键词：

Dry ball milling; Graphite; Mechanical properties; Polystyrene; Thermal conductivity;

D O I：

10.16865/j.cnki.1000-7555.2022.0195

中图分类号：

学科分类号：

摘要：

Compared with traditional wet ball milling, exfoliation of graphite (GT) via dry ball milling takes less time to prepare graphite nanosheets, does not require any solvent, and is environmentally friendly and low energy consumption. In this paper, graphite nanosheets were obtained via in situ peeling of graphite in the presence of solid diluents, polystyrene (PS) and maleic anhydride- g- (styrene- ethylene- butadiene- styrene) (SEBS- g-MAH). The solid diluents (PS and SEBS-g-MAH) can form strong interfacial interactions with the GT surface. Then, PS composites were prepared by melt blending and micro- injection, and the effects of the morphological structure and dispersion state of fillers in the matrix on the thermal conductivity and mechanical properties of PS composites were analyzed. Compared with non-ball milled GT, the graphite nanosheets have stronger interfacial interactions with the matrix and are more uniformly dispersed in the PS matrix with oriented arrangement, the thermal conductivity of PS composites is increased by 27.5%, and the notched impact strength is increased by 14.9%. © 2022, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：80 / 87and94

页数：8714

共 15 条

[1] Ghosh S, Calizo I, Teweldebrhan D, Et al., Extremely high thermal conductivity of graphene: prospects for thermal management applications in nanoelectronic circuits, Applied Physics Letters, 92, (2008)
[2] Fugallo G, Cepellotti A, Paulatto L, Et al., Thermal conductivity of graphene and graphite: collective excitations and mean free paths, Nano Letters, 14, pp. 6109-6114, (2014)
[3] Yi M, Shen Z., A review on mechanical exfoliation for the scalable production of graphene, Journal of Materials Chemistry A, 3, pp. 11700-11715, (2015)
[4] Liu G, Komatsu N., Efficient and scalable production of 2D material dispersions using hexahydroxytriphenylene as a versatile exfoliant and dispersant, ChemPhysChem, 17, pp. 1557-1567, (2016)
[5] Deng S, Qi X D, Zhu Y L, Et al., A facile way to large-scale production of few-layered graphene via planetary ball mill, Chinese Journal of Polymer Science, 34, pp. 1270-1280, (2016)
[6] Burk L, Gliem M, Muelhaupt R., Mechanochemical routes to functionalized graphene nanofillers tuned for lightweight carbon/ hydrocarbon composites, Macromolecular Materials and Engineering, 304, (2019)
[7] Orimo S, Majer G, Fukunaga T, Et al., Hydrogen in the mechanically prepared nanostructured graphite, Applied Physics Letters, 75, pp. 3093-3095, (1999)
[8] Zhao W, Fang M, Wu F, Et al., Preparation of graphene by exfoliation of graphite using wet ball milling, Journal of Materials Chemistry, 20, pp. 5817-5819, (2010)
[9] Leon V, Rodriguez A M, Prieto P, Et al., Exfoliation of graphite with triazine derivatives under ball-milling conditions: preparation of few-layer graphene via selective noncovalent interactions, ACS Nano, 8, pp. 563-571, (2014)
[10] Beckert F, Trenkle S, Thomann R, Et al., Mechanochemical route to functionalized graphene and carbon nanofillers for graphene/ SBR nanocomposites, Macromolecular Materials and Engineering, 299, pp. 1513-1520, (2014)

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