Structure and property of electrospinning PAN nanofibers by different preoxidation temperature
Structure and property of electrospinning PAN nanofibers by different preoxidation temperature
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不同预氧化温度静电纺PAN纳米纤维的结构与性能
DOI：
10.1007/s10973-009-0126-0
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发表时间：
2010-02-01
影响因子：
4.4
通讯作者：
Qin, Xiao-Hong
中科院分区：
文献类型：
--
作者：
Qin, Xiao-Hong
本文采用静电纺丝法制备了PAN纤维网，并对其进行了预氧化处理。讨论了温度对预氧化纤维网组织和性能的影响。结果表明，当预氧化温度为250℃时，可以得到较好的预氧化纳米纤维网。在此温度下，红外光谱表明发生了环化和脱氢反应，DSC曲线表明环化基本完成，水分含量可以适当控制。预氧化后的纤维网具有较好的断裂强度、断裂伸长率和初始模数。
In this work, PAN fibers web was fabricated by Electrospinning, and then was pre-oxidated. Effect of the temperature on the structure and property of pre-oxidation web was discussed. The results showed that better level of pre-oxidation nanofibers web can be obtained when the pre-oxidation temperature is 250 °C. At this temperature, Infrared Spectroscopy showed that cyclization and dehydrogenation reaction have occurred and DSC curves showed that cyclization was basically complete, as well as moisture content can be appropriately controlled. Moreover, the preoxidated web with better breaking strength, elongation at break, and the initial modulus could be obtained.