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Available online at www.sciencedirect.com Procedia Engineering 10 (2011) 2040–2045 ICM11 Mechanical properties of HDPE/textile fibers composites P. S. Souzaa*, E. F. Rodriguesa, J. M. C Prêtaa, S. A. S. Goularta, D. R. Mulinaria aUniFoa, Av. Paulo Erlei Alves Abrantes 1325 Três Poços, Volta Redonda, Brazil Abstract The use of natural fibers as reinforcement for thermoplastics has generated much interest due to the low cost, low density, high specific properties characteristics. In this work the mechanical properties of high density polyethylene/ textile fibers residues composites were studied. Effect of pretreatment with sulfuric acid on textile fibers to prepare composites was made to provide an improvement in mechanical properties of these materials. This treatment on fibers was evaluated by X-ray diffraction technique. Composites were produced in a thermokinetic mixer in the following composition: 5 and 10 wt% fibers. After mixing the samples were injection molding according to ASTM D-638 specification. Specimens were tested in tensile mode and composite fractures surface were analyzed in a scanning electron microscopy. Also was studied moisture absorption. Results showed that HDPE/ textile fibers residue presents good mechanical performance compared with high-density polyethylene. © 2011 Published by Elsevier Ltd. Open access under CC BY-NC-ND license. Selection and peer-review under responsibility of ICM11 Keywords: Textile fibers; Mechanical properties; Interfacial bonding; Moisture absorption 1. Introduction Natural fibers reinforced polymer composites represent one of today’s fastest growing industries. These fibers present a potential alternative in reinforced composites because of growing environmental awareness and legislated requirements compared to synthetic fibers such as carbon and glass [1-3]. Due environmental consciousness, worries about the ever faster depletion of limited petroleum reserves as well as the government regulations around the world have encouraged the scientists to develop eco- friendly, sustainable and biodegradable composite materials and plastics. This petroleum- based synthetic fiber, resins and composites have caused serious ecological and environmental problems due to their non biodegradable nature [4]. Several authors reported the use of natural fibers such as bagasse [5], sisal [6], banana [7], jute [8], and hemp [9] as reinforcement in polymer matrix. * Corresponding author. Tel.: +55-24-33408400; fax: +55-24-33408400 E-mail address: patys_souza@hotmail.com 1877-7058 © 2011 Published by Elsevier Ltd. Open access under CC BY-NC-ND license. Selection and peer-review under responsibility of ICM11 doi:10.1016/j.proeng.2011.04.338PDF Image | Mechanical properties of HDPE textile fibers composites
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