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Article: Bioactive hydroxyapatite-polysulfone composite for tissue replacement

TitleBioactive hydroxyapatite-polysulfone composite for tissue replacement
Authors
Issue Date2000
PublisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/epubs/proceedings/spring2004/index.html
Citation
Materials Research Society Symposium - Proceedings, 2000, v. 599, p. 45-50 How to Cite?
AbstractA new composite material consisting of hydroxyapatite (HA) and polysulfone (PSU) was produced and evaluated for potential medical applications. The HA/PSU composite containing up to 40vol% of particulate HA was manufactured via a standardised procedure which included drying, compounding, and injection or compression moulding. Defect-free composite samples (bars, discs and dumbbell specimens) could be obtained by injection moulding. Thick composite plates suitable for making fatigue specimens were compression moulded. Both compounded materials and moulded parts were assessed using various techniques. It was found that HA particles were well dispersed in the PSU matrix. Thermogravimetric analysis verified the amount of HA in the composite. Density close to the theoretical value could be achieved for the composite, indicating a void-free structure. Differential scanning calorimetry results indicated that the glass transition temperature of the polymer matrix was not significantly affected by the incorporation of HA. Rheological analysis revealed that PSU and the composite exhibited pseudoplastic flow behaviour at processing temperatures. It was shown that the hardness and modulus of the composite were increased with an increase in HA volume percentage.
Persistent Identifierhttp://hdl.handle.net/10722/156535
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChua, Ben_US
dc.contributor.authorWang, Men_US
dc.date.accessioned2012-08-08T08:42:51Z-
dc.date.available2012-08-08T08:42:51Z-
dc.date.issued2000en_US
dc.identifier.citationMaterials Research Society Symposium - Proceedings, 2000, v. 599, p. 45-50en_US
dc.identifier.issn0272-9172en_US
dc.identifier.urihttp://hdl.handle.net/10722/156535-
dc.description.abstractA new composite material consisting of hydroxyapatite (HA) and polysulfone (PSU) was produced and evaluated for potential medical applications. The HA/PSU composite containing up to 40vol% of particulate HA was manufactured via a standardised procedure which included drying, compounding, and injection or compression moulding. Defect-free composite samples (bars, discs and dumbbell specimens) could be obtained by injection moulding. Thick composite plates suitable for making fatigue specimens were compression moulded. Both compounded materials and moulded parts were assessed using various techniques. It was found that HA particles were well dispersed in the PSU matrix. Thermogravimetric analysis verified the amount of HA in the composite. Density close to the theoretical value could be achieved for the composite, indicating a void-free structure. Differential scanning calorimetry results indicated that the glass transition temperature of the polymer matrix was not significantly affected by the incorporation of HA. Rheological analysis revealed that PSU and the composite exhibited pseudoplastic flow behaviour at processing temperatures. It was shown that the hardness and modulus of the composite were increased with an increase in HA volume percentage.en_US
dc.languageengen_US
dc.publisherMaterials Research Society. The Journal's web site is located at http://www.mrs.org/publications/epubs/proceedings/spring2004/index.htmlen_US
dc.relation.ispartofMaterials Research Society Symposium - Proceedingsen_US
dc.titleBioactive hydroxyapatite-polysulfone composite for tissue replacementen_US
dc.typeArticleen_US
dc.identifier.emailWang, M:memwang@hku.hken_US
dc.identifier.authorityWang, M=rp00185en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0033678030en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033678030&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume599en_US
dc.identifier.spage45en_US
dc.identifier.epage50en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChua, B=7005505783en_US
dc.identifier.scopusauthoridWang, M=15749714100en_US

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