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http://dx.doi.org/10.7473/EC.2011.46.2.125

Concentration Effects on Improved Mechanical Properties of Chopped Kenaf Fiber Filled Polypropylene Composite  

Oh, Jeong-Seok (Hyundai-Kia Motors Co., Materials Development Center)
Lee, Seong-Hoon (Hyundai-Kia Motors Co., Materials Development Center)
Kim, Kwang-Jea (Institute of Polymer Engineering, The Univ. of Akron)
Publication Information
Elastomers and Composites / v.46, no.2, 2011 , pp. 125-131 More about this Journal
Abstract
The effects of chopped kenaf fiber concentration on mechanical property of polypropylene (PP) composite are investigated. The addition of kenaf increased the tensile strength, flexural modulus, impact strength, specific gravity, and HDT, while decreased the elongation%, flexural strength, and melt flow index. The increase of mechanical properties is due to increased surface area contacting between fiber and polymer matrix and fiber-fiber interaction. Volatile extractives in the kenaf seemed to decrease the interfacial adhesion between kenaf surface and PP.
Keywords
wood plastic composites; chopped kenaf fiber; PP; mechanical properties; volatile extractives;
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