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http://dx.doi.org/10.7317/pk.2013.37.4.518

Effect on Graphene Addition on Characteristics of Polypropylene Biocomposites Reinforced with Sulfuric Acid Treated Green Algae  

Jang, Young Hun (Energy Materials and Convergence Research Department, Korea Institute of Energy Research)
Han, Seong Ok (Energy Materials and Convergence Research Department, Korea Institute of Energy Research)
Kim, Hyung-Il (Department of Industrial Chemistry, Chungnam National University)
Sim, I Na (Energy Materials and Convergence Research Department, Korea Institute of Energy Research)
Publication Information
Polymer(Korea) / v.37, no.4, 2013 , pp. 518-525 More about this Journal
Abstract
To improve the mechanical properties of polypropylene (PP) biocomposites reinforced with sulfuric acidtreated green algae (SGA), SGA/graphite nanoplatelets (GNP)/PP biocomposites were prepared and their properties were evaluated depending on the particle size and content of GNP. The flexural and impact strength of SGA/GNP/PP biocomposites decreased with the addition of GNP, whereas the flexrual and storage moduli were greatly improved with increasing GNP loading. SGA/GNP/PP biocomposites reinforced with GNP5 showed generally better mechanical properties compared to that reinforced with GNP15 mainly due to the improved dispersion of the smaller GNP. SGA/GNP/PP biocomposites reinforced with GNP5 showed a lower resistance to the thermal expansion because the relatively uniform dispersion of smaller GNP was responsible for the effective heat transfer to the polymer matrix. As a result, SGA/GNP/PP biocomposite was acceptable for the general purpose application due to the improved flexural resistance, storage moduli, and damping characteristics.
Keywords
seaweed; graphene; polypropylene; biocomposites; hybrid composites;
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