Functionalization of Graphene Nanosheets and Its Dispersion in PMMA/PEO Blend: Thermal, Electrical, Morphological and Rheological Analyses

被引：21
作者：
Aram, Elham [1 ]
Ehsani, Morteza [1 ]
Ithonakdar, Hossein Ali [1 ,2 ]
Jafari, Seyed Hassan [3 ]
Nouri, Nastaran Riahi [4 ]
机构：
[1] Iran Polymer & Petrochem Inst, Tehran 14965115, Iran
[2] Leibniz Inst Polymer Res Dresden, D-01067 Dresden, Germany
[3] Univ Tehran, Sch Chem Engn, Tehran 111554563, Iran
[4] Ceram & Polymer Grp, Niroo Res Inst, Tehran 14665517, Iran
来源：
FIBERS AND POLYMERS | 2016年 / 17卷 / 02期
关键词：
Graphene; Para-phenylene diamine; Poly(methyl methacrylate)/poly(ethylene oxide); Nanocomposites; Dispersion of GnP; POLY(ETHYLENE OXIDE); METHACRYLATE) NANOCOMPOSITES; DIELECTRIC-PROPERTIES; PHYSICAL-PROPERTIES; CARBON; CONDUCTIVITY; COMPOSITES; NANOPLATELETS; REDUCTION; FILMS;
D O I：
10.1007/s12221-016-5827-y
中图分类号：
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号：
0805 ; 080502 ; 0821 ;
摘要：
Graphene nanoplatelet (GnP) was chemically functionalized by amine groups for improvement of compatibility in poly(methyl methacrylate) (PMMA)/poly(ethylene oxide) (PEO) blend. PMMA/PEO (90/10) nanocomposites with non-functionalized GnP and functionalized GnP (FGnP) were prepared by solution casting method. Successful grafting of amine groups on the GnP surface was confirmed by Fourier transform infrared (FT-TR) and X-ray diffraction (XRD) analysis. The Transmission electron microscopy (TEM) images showed that the dispersion state of FGnP was better than that of GnP in PMMA/PEO nanocomposites. The effects of FGnP and GnP on rheological, thermal and electrical properties of PMMA/PEO nanocomposites were investigated by various methods. The results indicated that the FGnP based nanocomposites had higher storage modulus, glass transition temperature and thermal stability as compared to the GnP-based nanocomposites. The electrical conductivity of the nanocomposites with FGnP was better than that of GnP-based nanocomposites. The higher conductivity was attributed to homogeneous and well dispersion state of FGnP in PMMA/PEO nanocomposites.
引用
收藏
页码：174 / 180
页数：7
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