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Hydrophobic appear modification of ramie fibers with grain alcoholic drink pre interposition and atmospheric pressure blood plasm interposition Zhou Zhou, Xingchen Liu, Benting Hu, Jilong Wang, Danwei Xin, Yiping Qiu* Key Laboratory of material Science and Technology, Ministry of Education, mainland China College of Textiles, Donghua University, Shanghai 201620, China *Corresponding author. Tel: +86 021 67792744; fax: +86 021 67792627 E-mail address: ypqiu@dhu.edu.cn Abstract Incompatibility between hydrophilic pictorial cellulose fibers and hydrophobic thermoplastic polymer matrices leads to poor interfacial stick in their composites. This study investigates how atmospheric pressure plasma putting surface (APPJ) treatment with fermentation alcohol pretreatment whitethorn improve ramie fiber surface properties for better adhesion to polypropylene. After soakage in ethanol for 10 min, ramie fibers are inured by atomic number 2 plasma. Scanning electron microscop y shows change magnitude fiber surface rudeness due to plasma etching, which favors mechanical interlocking of the interface. X-ray photoelectron spectrometry analysis indicates increased carbon contents and hydrophobic C-C bonds. larger advancing wet contact angles are found in dynamic urine contact angle measurement.

Microbond test shows a nearly 50% increase of the interfacial shear susceptibility of the fibers to polypropylene compared to the control, which may be attributed largely to the reaction of ethanol molecules and cellulose in plasma treatment, leading to increased hydrophobicity in the ramie fibe rs and thus modify their compatibility to p! olypropylene matrix. Keywords: Atmospheric pressure plasma; Cellulose fibers; Hydrophobicity; Ethanol; interfacial shear strength 1. Introduction Cellulose indwelling fibers have been hike as low cost, widely available, renewable, and environmentally friendly substitutes to non-renewable manmade fibers much(prenominal) as glass and synthetic fibers in composites [1-3]. Thermoplastic composites built with natural fibers are enjoying...If you want to get a integral essay, locate it on our website: OrderCustomPaper.com

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