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Mechanical properties and crystallization behavior of hydroxyapatite/poly(butylenes succinate) composites
Author(s) -
Guo Wenmin,
Zhang Yihe,
Zhang Wei
Publication year - 2013
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.34552
Subject(s) - materials science , crystallization , ultimate tensile strength , composite material , biocompatibility , polybutylene succinate , polymer , glass transition , chemical engineering , engineering , metallurgy
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.