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Influence of hemp fibers with modified surface on polypropylene composites
Denis Mihaela Panaitescu,Cristian Andi Nicolae,Zina Vuluga,Catalin Vitelaru,Catalina Gabriela Sanporean,Catalin Zaharia,Dorel Florea,Gabriel Vasilievici 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.37 No.-
Hemp fibers (HF) were treated with g-Aminopropyltriethoxysilane, g-Glycidoxypropyltrimethoxysilane,g-Methacryloxypropyltrimethoxysilane (MPS) and potassium permanganate (KP), without alkalinepretreatment, to improve the mechanical properties of polypropylene (PP)/HF composites forautomotive parts. MPS and KP treatments were the most efficient in splitting HF bundles andseparation 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% inPP/untreated fibers. KP led to mild oxidation of HF with good effect on mechanical properties and wasproposed as cheap and effective treatment of HF, easily applicable industrially.