TY - GEN
T1 - Effects of processing conditions on chitosan-hydroxyapatite biocomposite mechanical properties
AU - Korach, Chad S.
AU - Halada, Gary
AU - Mubarez, Hani
PY - 2011
Y1 - 2011
N2 - Hydroxyapatite (HAp) based composites are used in numerous biomedical applications from bone pastes and cements to tissue scaffolds. Chitosan (Ch) is a ubiquitous biocompatible polymer derived from chitin which is soluble in acidic solutions and can be found in natural organisms such as shellfish. Past work has demonstrated that composites of HAP-Ch have high mechanical strength when processing conditions are optimized. Here, we present the effects of changes in the HAP/Ch mass fractions, the use of malic and citric acids on chitosan processing, and of nanoscale HAp particles on the composite strength and modulus. SEM is used to analyze the fracture surfaces and identify matrix-particle bonding morphology. Chemical variations are measured within the material structure by the use of FTIR and EXAFS and related to the composite processing changes.
AB - Hydroxyapatite (HAp) based composites are used in numerous biomedical applications from bone pastes and cements to tissue scaffolds. Chitosan (Ch) is a ubiquitous biocompatible polymer derived from chitin which is soluble in acidic solutions and can be found in natural organisms such as shellfish. Past work has demonstrated that composites of HAP-Ch have high mechanical strength when processing conditions are optimized. Here, we present the effects of changes in the HAP/Ch mass fractions, the use of malic and citric acids on chitosan processing, and of nanoscale HAp particles on the composite strength and modulus. SEM is used to analyze the fracture surfaces and identify matrix-particle bonding morphology. Chemical variations are measured within the material structure by the use of FTIR and EXAFS and related to the composite processing changes.
UR - https://www.scopus.com/pages/publications/84857811860
U2 - 10.1007/978-1-4614-0219-0_17
DO - 10.1007/978-1-4614-0219-0_17
M3 - Conference contribution
AN - SCOPUS:84857811860
SN - 9781461402183
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 125
EP - 130
BT - Mechanics of Biological Systems and Materials - Proceedings of the 2011 Annual Conference on Experimental and Applied Mechanics
PB - Springer New York LLC
T2 - 2011 SEM Annual Conference on Experimental and Applied Mechanics
Y2 - 13 June 2011 through 16 June 2011
ER -