期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 40, 期 11, 页码 1777-1784出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2009.08.013
关键词
Fibers; Mechanical properties; Fiber/matrix bond; Resin transfer molding
Sisal fibers were subjected to various chemical and physical modifications such as mercerization, heating at 100 degrees C, permanganate treatment, benzoylation and silanization to improve the interfacial bonding with matrix. Composites were prepared by these fibers as reinforcement, using resin transfer molding (RTM). The mechanical properties such as tensile, flexural and impact strength were examined. Mercerized fiber-reinforced composites showed 36% of increase in tensile strength and 53% in Young's modulus while the permanganate treated fiber-reinforced composites performed 25% increase in flexural strength. However. in the case of impact strength, the treatment has been found to cause a reduction. The water absorption study of these composites at different temperature revealed that it is less for the treated fiber-reinforced composites at all temperatures compared to the untreated one. SEM studies have been used to complement the results emanated from the evaluation of mechanical properties. (C) 2009 Elsevier Ltd. All rights reserved.
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