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Characterization of hdpe/ha Composites Treated with Titanate and Zirconate Coupling Agents
Author(s) -
Carmen Albano,
Rosestela Perera,
Arquímedes Karam,
Gema González,
Nohemy Domínguez,
Yanixia Sánchez,
Luís Brito Juaquín
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750122
Subject(s) - high density polyethylene , materials science , composite material , polyethylene , ultimate tensile strength , coupling (piping) , lead zirconate titanate , dispersion (optics) , titanate , modulus , dielectric , ceramic , ferroelectricity , physics , optoelectronics , optics
Abstract The development of new materials for bone substitution has been of great interest for the scientific community in the last years. High‐density polyethylene (HDPE) and hydroxyapatite (HA) composites have been used in biomedical applications without any inflammatory response. However, the differences in nature of both materials have motivated the use of coupling agents to improve their interfacial interactions. In this work, the effects of adding three different commercial coupling agents (NZ12, Lica01, Lica12) to high‐density polyethylene (HDPE)/hydroxyapatite (HA) composites were studied. Composites containing 20 parts per hundred (phr) of HA previously treated with the already mentioned coupling agents were characterized by mechanical tests and their morphologies were analyzed afterwards. Composites with 0.3 and 0.5 wt% of NZ12 unfolded an increase in their Young's modulus and tensile strength, as a consequence of an improved dispersion of the filler into the polymeric matrix. Analysis of the samples by XPS showed that the zirconate coupling agent interacted more with the HA, as reflected in the lower binding energies of the corresponding oxygen atoms, which agrees with their better performance from the mechanical point of view.