論文

査読有り
2017年11月1日

Influence of early-stage hydrolysis on tensile fracture behavior of HAp/PLA composites interface-controlled by reaction control utilizing photodissociable protecting groups

International Journal of Automation Technology
  • Mototsugu Tanaka
  • ,
  • Tomoyuki Takahashi
  • ,
  • Isao Kimpara

11
6
開始ページ
932
終了ページ
940
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.20965/ijat.2017.p0932
出版者・発行元
Fuji Technology Press

In this study, the change in the tensile fracture behavior of HAp/PLA composites, interface-controlled using pectin and chitosan, was evaluated for the case of the early-stage hydrolysis. Here, the reaction between the HAp particles and modification polymers was controlled using o-nitrobenzyl alcohol. Tensile tests after immersion in a pseudo biological environment indicated that the interface-control method employed in this study improved the fracture properties of HAp/PLA composites significantly, inducing the large plastic deformation. In addition, the effects of early-stage hydrolysis on fracture behavior and mechanism are discussed from the viewpoint of interfacial structures for the interface-controlled HAp/PLA composites. Observations of fracture morphologies and surfaces suggest that the interface-control employed in this study successfully improved interfacial bonding, enabling the effective usage of the deformabil-ity of the PLA matrix. The interface-control method employed in this study also maximized the fracture strain through the combination of improved interfacial bonding and an increase in the ductility of the PLA matrix after a 2-week immersion. Test results also suggest that the cancelation induced by the degradation of chitosan accelerated the degradation of the PLA matrix after a longer immersion.

リンク情報
DOI
https://doi.org/10.20965/ijat.2017.p0932
ID情報
  • DOI : 10.20965/ijat.2017.p0932
  • ISSN : 1883-8022
  • ISSN : 1881-7629
  • SCOPUS ID : 85034976818

エクスポート
BibTeX RIS