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Citation: SONG Qiu-Sheng, SHI Tie-Jun. Preparation of Si/C Fiber Precursors from SiO₂/Sucrose Hybrid Sols[J]. Chinese Journal of Applied Chemistry, ;2008, 25(10): 1240-1242. shu

Preparation of Si/C Fiber Precursors from SiO₂/Sucrose Hybrid Sols

SONG Qiu-Sheng ,
SHI Tie-Jun ^,

1.
School of Chemical Engineering, Hefei University of Technology, Hefei 230009

Corresponding author: SHI Tie-Jun,
Received Date: 29 September 2007
Available Online: 7 December 2007
Fund Project: 国家自然科学基金(50373010)资助项目 (50373010)

SiO₂/sucrose hybrid sol was prepared from sol-gel of TEOS and sucrose,and SiO₂/sucrose hybrid ferbers were prepared by drawing method.The change in viscosity and the spinnablity of the hybrid sols were studied.The morphology of the hybrid fibers was characterized by SEM;the thermal properties of the hybrid fibers were characterized by TG and DSC,and the crystalline property of the hybrid fibers was characterized by XRD.The results showed that the SiO₂/sucrose hybrid sols had good spinnability,and the hybrid fibers had excellent appearance.The heat resistance of sucrose was improved in the hybrid.The hybrid fibers were amorphous and some micro-crystals of graphite were formed after they had been heated to 800℃.
- sucrose,
- SiO₂,
- hybrid fibers,
- precursor,
- sol-gel method,
- SiC fiber
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Preparation of Si/C Fiber Precursors from SiO₂/Sucrose Hybrid Sols