화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.17, No.2, 325-330, March, 2011
DOI10.1016/j.jiec.2011.02.034  Export Citation
Electrical properties of graphene/SBR nanocomposite prepared by latex heterocoagulation process at room temperature
Jin Sil Kim, Ju Ho Yun1, Il Kim2, and Sang Eun Shim†
  • Department of Chemical Engineering, Inha University, 253 Yonghyundong, Namgu, Incheon 402-751, Republic of Korea
  • 1Enviromental Materials & Components R&D Center, Korea Automotive Technology Institute, 74 Youngjung-Ri, Pungse-Myun, Dongnam-Gu, Chonan-Si,Chungnam 330-912, Republic of Korea
  • 2The WCU Center for Synthetic Polymer Bioconjugate Hybrid Materials, Department of Polymer Science and Engineering, Pusan National University, 30 Changjeon-dong,Keumjeong-ku, Pusan 609-735, Republic of Korea
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MLGS/SBR nanocomposites were prepared by heterocoagulation between negatively charged SBR latex particles and positively surface modified MLGS in water with the aid of flocculant, polyaluminium chloride (PAC). With the optimum amount of a flocculant, well-controlled heterocoagulation yielded MLGS/SBR nanocomposite particles at room temperature with unimodal particle size distribution. The size of the composite particles was in the range of 10-20 μm. SEM morphology showed that MLGS was spatially well-distributed into SBR matrix under the optimum condition. The thermal stability was lightly improved due to the p.p interaction between MLGS and the phenyl groups of SBR. Also, the electrical conductivity of MLGS/SBR composite increases from 4.52 ×10^(-13) to 4.56 ×10^(-7) S/cm with a corresponding increases of MLGS from 0.5 to 5 wt%.
Keywords:Graphene;SBR;Nanocomposite;Heterocoagulation;Latex
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