引用本文:
翟林峰, 史铁钧, 于少明. 可纺性锆溶胶的制备与应用Ⅰ.氧化锆连续纤维的制备[J]. 应用化学,
2008, 25(6): 637-641.
Citation: ZHAI Lin-Feng, SHI Tie-Jun, YU Shao-Ming. Preparation and Application of Spinnable Zirconium Sol Ⅰ.Preparation of Continuous Zirconia Fiber[J]. Chinese Journal of Applied Chemistry, 2008, 25(6): 637-641.
Citation: ZHAI Lin-Feng, SHI Tie-Jun, YU Shao-Ming. Preparation and Application of Spinnable Zirconium Sol Ⅰ.Preparation of Continuous Zirconia Fiber[J]. Chinese Journal of Applied Chemistry, 2008, 25(6): 637-641.
可纺性锆溶胶的制备与应用Ⅰ.氧化锆连续纤维的制备
摘要:
以氯氧化锆为原料,异丙醇为溶剂,双氧水为水解促进剂,乙酰丙酮为配位剂,采用溶胶-凝胶法制备了ZrO2前驱体连续纤维,经800℃热处理后得ZrO2连续纤维。用FT-IR、TGA、元素分析和SEM等分析技术表征了纤维的化学结构和形貌观察,研究了可纺性ZrO2溶胶的制备条件和影响因素。结果表明,当n(氯氧化锆):n(双氧水)=1:3,反应时间6 h,陈化温度15℃时可得纺丝性能良好的锆溶胶,ZrO2前驱体连续纤维的成分是部分经乙酰丙酮配位的ZrO2水合物,热处理后ZrO2纤维的平均直径为15 μm左右,纤维体中存在大量纳米级气孔,但没有发现明显裂纹。
English
Preparation and Application of Spinnable Zirconium Sol Ⅰ.Preparation of Continuous Zirconia Fiber
Abstract:
Continuous ZrO2 precursor fibers were prepared by the sol-gel method with zirconium oxychlorid as raw material,2-propyl as solvent,acetylacetone as complex,and then continuous ZrO2 fibers were obtained by sintering the precursor at 800℃.The chemistry structure and morphology of the fibers were studied by FT-IR,TGA,elemental analysis and SEM.The process and related influencing factors of the preparation of spinnable zirconium sol were studied.The results show that the zirconium sol has a good spinnability when n(zirconium oxychlorid):n(dioxogen)=1:3,reaction time is 6 h and aging temperature is 15℃.The main component of the ZrO2 precursor fibers is hydrous zirconia chelated by acetyl acetone.The mean diameter of the sintered ZrO2 fibers is about 15 μm;there are lots of nanometer pores in ZrO2 fibers,and cracks are found.
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Key words:
- zirconium oxychloride
- / continuous zirconia fiber
- / sol-gel method
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