화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.37, 137-146, May, 2016
DOI10.1016/j.jiec.2016.03.018  Export Citation
Influence of hemp fibers with modified surface on polypropylene composites
Denis Mihaela Panaitescu†, Cristian Andi Nicolae, Zina Vuluga, Catalin Vitelaru1, Catalina Gabriela Sanporean2, Catalin Zaharia3, Dorel Florea, and Gabriel Vasilievici
  • Polymer Department, National Institute of Research and Development in Chemistry and Petrochemistry, 202 Splaiul Independentei, 060021 Bucharest, Romania
  • 1National Institute for Optoelectronics INOE 2000, 409 Atomistilor St., 077125 Magurele, Romania
  • 2Department of Mechanical and Manufacturing Engineering, Aalborg University, Fibigerstræde 16, 9220, Aalborg, Denmark
  • 3Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
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Hemp fibers (HF) were treated with γ-Aminopropyltriethoxysilane, γ-Glycidoxypropyltrimethoxysilane, g-Methacryloxypropyltrimethoxysilane (MPS) and potassium permanganate (KP), without alkaline pretreatment, to improve the mechanical properties of polypropylene (PP)/HF composites for automotive parts. MPS and KP treatments were the most efficient in splitting HF bundles and separation of elementary fibers and led to better micro- and nano-mechanical properties in composites. PP modulus-of-elasticity increased with 67% in PP/HF-MPS, with 69% in PP/HF-KP and with only 30% in PP/untreated fibers. KP led to mild oxidation of HF with good effect on mechanical properties and was proposed as cheap and effective treatment of HF, easily applicable industrially.
Keywords:Hemp fibers;Silane;Surface treatment;Nanoindentation;Polypropylene
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