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http://dx.doi.org/10.7317/pk.2015.39.1.99

Effects of Alkali Treated Nano-kenaf Fiber in Polypropylene Composite upon Mechanical Property Changes  

Oh, Jeong Seok (Hyundai-Kia Motors Co., Materials Development Center)
Lee, Seong-Hoon (Hyundai-Kia Motors Co., Materials Development Center)
Kim, Kwang-Jea (Department of Polymer Science and Engineering, Inha Univ.)
Publication Information
Polymer(Korea) / v.39, no.1, 2015 , pp. 99-106 More about this Journal
Abstract
The surface of nano-kenaf containing cellulose fibers was treated with alkali (NaOH) and their effects on the physical properties of the polypropylene (PP) composite were investigated. The treatment of alkali on the fibers increased the melt flow index (M.I.), elongation%, and impact strength, while it decreased the tensile strength, flexural modulus and heat deflection temperature (HDT) of the compound compared to the untreated one. It seemed the alkali treatment on the nano-kenaf fiber changed the character of the fiber due to removal of impurities and chemicals on the surface and resulted in decreased interfacial adhesion between the nano-fiber surface and the PP matrix and changed the character of the PP.
Keywords
alkali treatment; nano-kenaf; polypropylene; mechanical property; interfacial adhesion;
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