Enhanced Mechanical Properties of Functionalized Graphene Oxide/linear Low Density Polyethylene Composites Prepared by Melt Mixing
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Graphene oxide (GO) was concurrently reduced and functionalized using long alkyl chain dodecyl amine (DA). The DA functionalized GO (DA-G) was assumed to disperse homogenously in linear low density polyethylene (LLDPE). Subsequently, DA-G was used to fabricate DA-G/LLDPE composites by melt mixing technique. Fourier transform infrared spectra analysis was performed to ascertain the simultaneous reduction and functionlization of GO. Field emission scanning electron microscopy analysis was performed to ensure the homogenous distribution and dispersion of DA-G in LLDPE matrix. The enhanced storage modulus value of the composites validates the homogenous dispersion of DA-G and its good interfacial interaction with LLDPE matrix. An increased in tensile strength value by ~ 64% also confirms the generation of good interface between the two constituents, through which efficient load transfer is possible. However, no significant improvement in glass transition temperature was observed. This simple technique of fabricating LLDPE composites following industrially viable melt mixing procedure could be realizable to developed mechanically strong graphene based LLDPE composites for future applications.
Abstract
Graphene oxide (GO) was concurrently reduced and functionalized using long alkyl chain dodecyl amine (DA). The DA functionalized GO (DA-G) was assumed to disperse homogenously in linear low density polyethylene (LLDPE). Subsequently, DA-G was used to fabricate DA-G/LLDPE composites by melt mixing technique. Fourier transform infrared spectra analysis was performed to ascertain the simultaneous reduction and functionlization of GO. Field emission scanning electron microscopy analysis was performed to ensure the homogenous distribution and dispersion of DA-G in LLDPE matrix. The enhanced storage modulus value of the composites validates the homogenous dispersion of DA-G and its good interfacial interaction with LLDPE matrix. An increased in tensile strength value by ~ 64% also confirms the generation of good interface between the two constituents, through which efficient load transfer is possible. However, no significant improvement in glass transition temperature was observed. This simple technique of fabricating LLDPE composites following industrially viable melt mixing procedure could be realizable to developed mechanically strong graphene based LLDPE composites for future applications.
참고문헌 (14)
- Rafiee M. A., "Enhanced Mechanical Properties of Nanocomposites at Low Graphene Content", ACS Nano, 3(12), pp.3884~3890 (2009)
- Suman Chhetri, "Effect of Dodecyal Amine Functionalized Graphene on the Mechanical and Thermal Properties of Epoxy-Based Composites", Polymer Engineering & Science, 56(11), pp.1221~1228 (2016), Wiley-Blackwell[DOI]
- Kim, S., "Multifunctional xGnP", LLDPE Nanocomposites Prepared by Solution Compounding Using Various Screw Rotating Systems, 2009, pp.3(294), 196~205
- Kuila, T., "Characterization and Properties of in situ Emulsion Polymerized Poly(methyl methacrylate)", graphene Nanocomposites, 2011, pp.42(11), 1856~1861
- Stankovich, S., "Synthesis and Exfoliation of Isocyanate-treated Graphene Oxide Nanoplatelets", Carbon, 44(15), pp.3342~3347 (2006)
- Kuila, T., "Preparation of Functionalized Graphene", linear Low Density Polyethylene Composites by a Solution Mixing Method, 2011, pp.49(3), 1033~1051
- Bourlinos, A. B., "Graphite Oxide: Chemical Reduction to Graphite and Surface Modification with Primary Aliphatic Amines and Amino Acids", Langmuir, 19(15), pp.6050~6055 (2003)
- Wang, J. Y., "Preparation and Properties of, Graphene Oxide", polyimide Composite Films with Low Dielectric Constant and Ultrahigh Strength via in situ Polymerization, 2011, pp.21(35), 13569~13575
- Xu, Y., "Graphene Hybrid Material Covalently Functionalized with Porphyrin: Synthesis and Optical Limiting Property", Advanced Material, 21(12), pp.1275~1279 (2009)
- Stankovich, S., "Graphene-based Composite Materials", Nature, 442, pp.282~286 (2006)
- Jang, J., "Effects of the Alkylamine Functionalization of Graphene Oxide on the Properties of Polystyrene Nanocomposites", Nanoscale Research Letters, 9(1), pp.265~ (2014)
- Kim, N. H., "Simultaneous Reduction, Functionalization and Stitching of Graphene Oxide with Ethylenediamine for Composites Application", Journal Material Chemistry A, 1(4), pp.1349~1358 (2013)
- Jana, M., "Covalent Surface Modification of Chemically Derived Graphene and Its Application as Supercapacitor Electrode Material", Physical Chemistry and Chemical Physics, 16, pp.7618~7626 (2014)
- Kuila, T., "Effect of Functionalized Graphene on the Physical Properties of Linear Low Density Polyethylene Nanocomposites", Polymer Testing, 31(1), pp.31~38 (2012)