Student

Hydrophobic appear modification of ramee fibers with grain inebriant pre interposition and atmospheric pressure blood plasm discussion 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 deliquescent pictorial cellulose fibers and hydrophobic thermoplastic polymer matrices leads to poor interfacial stick to in their composites. This study investigates how atmospheric pressure germ plasm common (APPJ) treatment with fermentation alcohol pretreatment whitethorn improve ramie fiber surface properties for better adhesion to polypropylene. After plunge in ethanol for 10 min, ramie fibers are hardened by atomic number 2 plasma. Scanning electron microscopy 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 piss contact angles are found in dynamic body of water 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 fi bers and thus change their compatibility to! polypropylene matrix. Keywords: Atmospheric pressure plasma; Cellulose fibers; Hydrophobicity; Ethanol; interfacial shear strength 1. Introduction Cellulose inwrought fibers have been lift 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, put together it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper