Thermal and mechanical behaviour of sisal/phenolic composites

Published on Oct 1, 2012in Composites Part B-engineering7.635
· DOI :10.1016/J.COMPOSITESB.2012.04.048
Andressa Cecília Milanese6
Estimated H-index: 6
(UNESP: Sao Paulo State University),
Maria Odila Hilário Cioffi22
Estimated H-index: 22
(UNESP: Sao Paulo State University),
Herman Jacobus Cornelis Voorwald23
Estimated H-index: 23
(UNESP: Sao Paulo State University)
Abstract This research proposes the development of polymeric composites reinforced with natural fibres to become stronger the damaged timber structures and proposes thermal and mechanical characterization of these composites. Fibres with larger structural applications are glass and carbon fibres but the use of natural fibres is an economical alternative and possesses many advantages such as biodegradability, low cost and is a renewable source. Woven sisal fabric was submitted to heat treatment before moulding and the influence of moisture content of fibres on the composites behaviour was observed. The paper presents mechanical characterization by tensile and flexural strength of woven sisal fabric composites, with and without thermal treatment (at 60 °C for 72 h) on the fabric, thermal characterization by TGA and the manufacturing process by compression moulding. Experimental results show to sisal/phenolic composites a tensile strength and a flexural strength value of 25.0 MPa and 11.0 MPa, respectively, independent to the use of sisal fibres with or without thermal treatment.
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