Effect of tannin on flexural properties of phenol formaldehyde glycerol reinforced composites: preliminary results

Cardona, F. and Ku, H. and Chouzenoux, L. (2010) Effect of tannin on flexural properties of phenol formaldehyde glycerol reinforced composites: preliminary results. Journal of Reinforced Plastics and Composites, 29 (24). pp. 3543-3553. ISSN 0731-6844

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Phenol formaldehyde composites are modified with glycerol/tannin mixes with varying percentage by weight of phenolic resin to glycerol/tannin. The glycerol to tannin ratio is also varied. In this work also different percentages by weight of SLG (a commercial ceramic microsphere) are added to the composites. The effect of glycerol/tannin mix and added SLG on the flexural properties was studied. It was found that the flexural stress decreases gradually with increasing tannin when there is no SLG. With SLG, the presence of tannin in the composites reduces the flexural stress drastically. Tannin reduces the strain at break. With SLG, this reduction of the yield strain is more apparent. Tannin increases the flexural modulus of the composite and SLG acts in the opposite direction. The use of tannin in the phenolic composites improves the ‘green’ character of the composite materials. It was also found that the presence of tannin made the mixing of phenolic resins with glycerol easier.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Submitted version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 24 Jan 2011 06:00
Last Modified: 03 Jul 2013 00:11
Uncontrolled Keywords: phenolic resin; phenol formaldehyde; tannin; glycerol; SLG; flexural strength; strain at break and flexural modulus
Fields of Research : 03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030304 Physical Chemistry of Materials
09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1177/0731684410381152
URI: http://eprints.usq.edu.au/id/eprint/9435

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