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Graphene: Prepared by High Speed Shearing-assisted Exfoliation and Application in Thermal Conductive Silicone
Shi, Zhi-Hui1,2; Li, Ying1; Yan, Lu1; Cao, Yun-Zhen1
2017
发表期刊Wuji Cailiao Xuebao/Journal of Inorganic Materials
ISSN1000324X
卷号32期号:9页码:955-960
摘要Graphene dispersion was produced by centrifugation after exfoliating the graphite in aqueous solutions containing sodium cholate as a surfactant with high speed shearing machine. The exfoliated graphene (thickness≤4 layers) showing large lateral size of around 2-3 μm and high quality (ID/IG≈0.15) was characterized by atomic force microscopy (AFM), transmission electron microscopy (TEM), and Raman spectroscopy. After freeze drying, Graphene was added in the silver-silicone rubber to produce a hybrid graphene-metal thermal conductive silicone rubber, and steady-state heat flow method was applied to study the thermal conductivity of the composite. It was found that as filler loading fraction of graphene increased from 0 to 3 vol%, thermal conductivity of siliver-silicone rubber dramatically improved from 4.9 W/(m·K) to 12.367 W/(m·K). This result suggests that little-defect graphene with few layers prepared by exfoliating can significantly enhance the thermal conductivity of silicone rubber by synergy effect when combined with silver powder. © 2017, Science Press. All right reserved.
DOI10.15541/jim20160659
EI入藏号20174804459980
EI主题词Graphene
EI分类号604.1 Metal Cutting - 641.1 Thermodynamics - 741.3 Optical Devices and Systems - 761 Nanotechnology - 804 Chemical Products Generally - 815.1.1 Organic Polymers - 818.1 Natural Rubber - 818.2 Elastomers
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25700
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
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GB/T 7714
Shi, Zhi-Hui,Li, Ying,Yan, Lu,et al. Graphene: Prepared by High Speed Shearing-assisted Exfoliation and Application in Thermal Conductive Silicone[J]. Wuji Cailiao Xuebao/Journal of Inorganic Materials,2017,32(9):955-960.
APA Shi, Zhi-Hui,Li, Ying,Yan, Lu,&Cao, Yun-Zhen.(2017).Graphene: Prepared by High Speed Shearing-assisted Exfoliation and Application in Thermal Conductive Silicone.Wuji Cailiao Xuebao/Journal of Inorganic Materials,32(9),955-960.
MLA Shi, Zhi-Hui,et al."Graphene: Prepared by High Speed Shearing-assisted Exfoliation and Application in Thermal Conductive Silicone".Wuji Cailiao Xuebao/Journal of Inorganic Materials 32.9(2017):955-960.
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