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Calcium phosphate compound–cellulose fiber composite material prepared in soaking medium at 36.5–60 °C

Published online by Cambridge University Press:  31 January 2011

Yoshiyuki Yokogawa ,
Motohiro Toriyama ,
Yukari Kawamoto ,
Kaori Nishizawa ,
Fukue Nagata ,
Tetsuya Kameyama ,
Kohji Okada  and
Masahiko Okuyama
Yoshiyuki Yokogawa
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Motohiro Toriyama
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Yukari Kawamoto
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Kaori Nishizawa
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Fukue Nagata
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Tetsuya Kameyama
Affiliation:
Bioceramics Laboratory, National Industrial Research Institute of Nagoya, 1 Hirate-cho, Kita, Nagoya 462, Japan
Kohji Okada
Affiliation:
R&D Center, NGK Spark Plug Co., Ltd., 2808 Iwasaki, Komaki 485, Japan
Masahiko Okuyama
Affiliation:
R&D Center, NGK Spark Plug Co., Ltd., 2808 Iwasaki, Komaki 485, Japan
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Abstract

Calcium phosphate growth on cellulose fibers phosphorylated in 1.5 × SBF (simulated body fluid) solution at various temperatures from 36.5–60 °C was studied. Cellulose fibers phosphorylated by using urea and H3PO4 and then soaked in saturated Ca(OH)2 solution at ambient temperature were found to stimulate the growth of a calcium phosphate coating on their surfaces after soaking in 1.5 × SBF solution for as little as one day. Soaking in 1.5 × SBF solution at higher temperature produced a thicker layer of calcium phosphate on the fibers, which may be due to the decrease of solubility of calcium phosphate. The specific surface area of the coatings decreased with an increase of soaking temperature and soaking time in 1.5 × SBF solution.

Type
Articles
Information
Journal of Materials Research , Volume 13 , Issue 4 , April 1998 , pp. 922 - 925
Copyright
Copyright © Materials Research Society 1998

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References

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