| 고분자 열분해와 자가발포를 이용한 생체활성 다공체의 제조 |
| 곽대현, 김진호, 이은주, 김득중 |
| 성균관대학교 신소재공학과 |
| Formation of Bioactive Ceramic Foams by Polymer Pyrolysis and Self-Blowing |
| Dae-Hyun Kwak, Jin-Ho Kim, Eun-Ju Lee, Deug-Joong Kim |
| School of Advanced Materials Science & Engineering, Sungkyunkwan University |
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| ABSTRACT |
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Formation and characterization of hydroxyapatite-based porous ceramics derived from polymer pyroysis were investigated. Polymer based process is chosen for preparing porous hydroxyapatite-based ceramics having a high mechanical strength. The hydroxyapatite-based porous ceramic was prepared by a self-blowing process of a polymethylsiloxane with filler and pyrolyzed at above $1000^{circ}C$. Biphasic material consisted of hydroxyapatite and CaO has been prepared by solid state reaction from calcium hydroxide($Ca(OH)_2$) and calcium hydrogen phosphate dihydrate($CaHPO_4{cdot}2H_2O$) as a filler material. The influence of filler content on mechanical properties was evaluated. The change of crystalline phase, microstructure and mechanical properties were investigated and discussed. |
| Key words:
Bioceramic, Ceramic foams, Polymer pyrolysis, Hydroxyapatite |
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