Mechanical properties and crystallization behavior of hydroxyapatite/poly(butylenes succinate) composites. Issue 9 (30th July 2013)

• Record Type: Journal Article
• Authors: Guo, Wenmin; Zhang, Yihe; Zhang, Wei
• Is Part Of: Journal of biomedical materials research. Volume 101A:Issue 9(2013)
• Page Start: 2500
• Page End: 2506
• Publication Date: 2013-07-30
• Subjects: poly(butylene succinate) (PBS) -- hydroxyapatite (HA) -- composites -- mechanical properties -- crystallization; Biomedical materials -- Periodicals; 610.28
• DOI: 10.1002/jbm.a.34552
• Languages: English
• ISSNs: 1549-3296

Abstract

Abstract : Biodegradable synthetic polymers have attracted much attention nowadays, and more and more researches have been done on biodegradable polymers due to their excellent mechanical properties, biocompatibility, and biodegradability. In this work, hydroxyapatite (HA) particles were melt‐mixing with poly (butylenes succinate) (PBS) to prepare the material, which could be used in the biomedical industry. To develop high‐performance PBS for cryogenic engineering applications, it is necessary to investigate the cryogenic mechanical properties and crystallization behavior of HA/PBS composites. Cryogenic mechanical behaviors of the composites were studied in terms of tensile and impact strength at the glass transition temperature (−30°C) and compared to their corresponding behaviors at room temperature. With the increase of HA content, the crystallization of HA/PBS composites decreased and crystallization onset temperature shifted to a lower temperature. The diameter of spherulites increased at first and decreased with a further HA content. At the same time, the crystallization rate became slow when the HA content was no more than 15 wt % and increased when HA content reached 20 wt %. In all, the results we obtained demonstrate that HA/PBS composites reveal a better tensile strength at −30°C in contrast to the strength at room temperature. HA particles with different amount affect the crystallization of PBS in different ways. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 101A: 2500–2506, 2013.