J. Technology and Education,
Vol.19, No.1, pp.1-6, 2012
研究論文
水熱処理を行ったプラズマ溶射ハイドロキシアパタイトフィルターの評価
田中 孝国*、池田 篤史、川越 大輔、武 成祥
小山工業高等専門学校 物質工学科(〒323-0806 小山市中久喜771)
*
tanakatakakuni@oyama-ct.ac.jp
Estimation of plasma sprayed hydroxyl apatite filter with hydrothermal treatment
Takakuni TANAKA, Atsushi IKEDA, Daisuke KAWAGOE, Seisho TAKE
Oyama National College of Technology
(771 Nakakuki, Oyama-city, Tochigi-Pref., 323-0806, JAPAN)
(Received December 7, 2011; Accepted December 26, 2011)
Abstract
The removal of endotoxin (Et) contaminants from high-purity water is a serious challenge for manufacturers of medical products. We fabricated a new filter with plasma-sprayed hydroxyl apatite on an SUS. However, this new filter showed no absorption. In this study, we treated the HAp filter surface under hydrothermal conditions (the hydrothermal method is known to change HAp powder crystallization). We then evaluated the Et removal using this hydrothermal HAp filter and, to analyze the hydrothermal treatment effects of HAp crystallization, we observed the filter surface using SEM. Through the experiments, we found that the Et removal ability was restored by hydrothermal treatment.
Keywords:
endotoxin, hydroxyl apatite, plasma spray, hydrothermal treatment
