TY  - BOOK
AU  - Zheng,W.
AU  - Wong,S.C.
AU  - Sue,H.J.
TI  - Transport behavior of PMMA/expanded graphite nanocomposites
KW  - POLYMETHYLMETHACRYLATE
KW  - EXPANDED GRAPHITE
KW  - NANOCOMPOSITE
N2  - Polymethylmethacrylate (PMMA)/expanded graphite (EG)and PMMA/untreated graphite (UG)composites were prepared by direct solution blending of PMMA with EG and UG fillers. A four-point resistivity probe system was used to measure the electrical conductivity of the composites. With the increase of filler content, the electrical conductivity of the composites showed the transition from an insulator to a semiconductor. The transition can be described by classic percolation theory with a critical exponent of 2.1±0.1 for PMMA/EG and 1.8±0.1 for PMMA/UG composites. Interestingly, only 0.6 vol
UR  - https://drive.google.com/file/d/1Nbn1ZCptrM82Ub0hsKCfND-7Gso0IcBQ/view?usp=drivesdk
ER  -