| 졸겔법에 의한 알루미나 섬유의 제조 (I) 유동학적 특성분석 |
| 최용수, 이종혁, 이해욱1, 김창은 |
연세대학교 세라믹공학과
1가야요업대학 전자세라믹공학과 |
| The Preparation of Alumina Fiber by Sol-Gel Method (I) Rheological Properties |
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| ABSTRACT |
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The TEA complex polymeric sol was prepared by the alkoxide sol-gel method. The purpsoe of this experiment was to vefity the particle shape in the sol from the investigation of the rheological properties. TEA retarded hydrolysis rate by the reaction with alkoxide enough to make a stable transparent sol in the wide range of composition. From the results of the viscosity change with time, the optimum mole ratio for spinning was selected as 0.5 mole of TEA, 3 mole of H2O and the optimum viscosity was 104 cPs. The rheological behavior of the sol showed that the particle shape in the sol was linear, which was adequate for fiber drawing. |
| Key words:
Sol-gel process, Alumina fiber, TEA-complexed sol, Rheological property, Spinnability |
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