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Article: Fungal degradation of fiber-reinforced composite materials

TitleFungal degradation of fiber-reinforced composite materials
Authors
Issue Date1997
Citation
Materials Performance, 1997, v. 36 n. 3, p. 37-42 How to Cite?
AbstractAs described in a previous report, a fungal consortium isolated from degraded polymeric materials was capable of growth on presterilized coupons of five composites, resulting in deep penetration into the interior of all materials within five weeks. 1 Data describing the utilization of composite constituents as nutrients for the microflora are described in this article. Increased microbial growth was observed when composite extract was incubated with the fungal inoculum at ambient temperatures. Scanning electron microscopic observation of carbon fibers incubated with a naturally developed population of microorganisms showed the formation of bacterial biofilms on the fiber surfaces, suggesting possible utilization of the fiber chemical sizing as carbon and energy sources. Electrochemical impedance spectroscopy was used to monitor the phenomena occurring at the fiber-matrix interfaces. Significant differences were observed between inoculated and sterile panels of the composite materials. A progressive decline in impedance was detected in the inoculated panels. Several reaction steps may be involved in the degradation process. Initial ingress of water into the resin matrix appeared to be followed by degradation of fiber surfaces, and separation of fibers from the resin matrix. This investigation suggested that composite materials are susceptible to microbial attack by providing nutrients for growth.
Persistent Identifierhttp://hdl.handle.net/10722/178610
ISSN
2015 Impact Factor: 0.105
2015 SCImago Journal Rankings: 0.244
References

 

DC FieldValueLanguage
dc.contributor.authorGu, JDen_US
dc.contributor.authorLu, Cen_US
dc.contributor.authorMitchell, Ren_US
dc.contributor.authorThorp, Ken_US
dc.contributor.authorCrasto, Aen_US
dc.date.accessioned2012-12-19T09:48:40Z-
dc.date.available2012-12-19T09:48:40Z-
dc.date.issued1997en_US
dc.identifier.citationMaterials Performance, 1997, v. 36 n. 3, p. 37-42en_US
dc.identifier.issn0094-1492en_US
dc.identifier.urihttp://hdl.handle.net/10722/178610-
dc.description.abstractAs described in a previous report, a fungal consortium isolated from degraded polymeric materials was capable of growth on presterilized coupons of five composites, resulting in deep penetration into the interior of all materials within five weeks. 1 Data describing the utilization of composite constituents as nutrients for the microflora are described in this article. Increased microbial growth was observed when composite extract was incubated with the fungal inoculum at ambient temperatures. Scanning electron microscopic observation of carbon fibers incubated with a naturally developed population of microorganisms showed the formation of bacterial biofilms on the fiber surfaces, suggesting possible utilization of the fiber chemical sizing as carbon and energy sources. Electrochemical impedance spectroscopy was used to monitor the phenomena occurring at the fiber-matrix interfaces. Significant differences were observed between inoculated and sterile panels of the composite materials. A progressive decline in impedance was detected in the inoculated panels. Several reaction steps may be involved in the degradation process. Initial ingress of water into the resin matrix appeared to be followed by degradation of fiber surfaces, and separation of fibers from the resin matrix. This investigation suggested that composite materials are susceptible to microbial attack by providing nutrients for growth.en_US
dc.languageengen_US
dc.relation.ispartofMaterials Performanceen_US
dc.titleFungal degradation of fiber-reinforced composite materialsen_US
dc.typeArticleen_US
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0031081837en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031081837&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume36en_US
dc.identifier.issue3en_US
dc.identifier.spage37en_US
dc.identifier.epage42en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US
dc.identifier.scopusauthoridLu, C=35082363000en_US
dc.identifier.scopusauthoridMitchell, R=7403974570en_US
dc.identifier.scopusauthoridThorp, K=17836664100en_US
dc.identifier.scopusauthoridCrasto, A=7003970429en_US

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