Effect of Tension on the Microvoids Structure of Polyacylonitrile(PAN) Fibers During the Thermal Stabilization Stage

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (12): 2711.

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Effect of Tension on the Microvoids Structure of Polyacylonitrile(PAN) Fibers During the Thermal Stabilization Stage

GAO Feng^1,2, ZHAO Jiang^1*

1. Beijing National Laboratory for Molecular Sciences, Joint Laboratory of Polymer Sciences and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China

Received:2011-08-09 Revised:2011-10-14 Online:2011-12-10 Published:2011-11-25
Contact: ZHAO Jiang E-mail:jzhao@iccas.ac.cn
Supported by:
国家“九七三”计划项目(批准号: 2006CB605305)资助.

Abstract

Abstract: The effect of tension on the microvoids of polyacylonitrile(PAN) thermal stabilized fibers was investigated by small angle X-ray scattering(SAXS) at Shanghai Synchrotron Radiation Facility(SSRF) at beamline BL16B. All SAXS patterns exhibit a very big anisotropy between the equator and meridian direction. The results indicate that the scattering bodies are elongated and oriented in direction of fiber axis. The quantitative parameters of orientation, length, diameter of the microvoids were obtained. The results show an obvious effect of tension to the microvoids' structure——a narrowing of the distribution of the microvoids misorientation and a more slender shape of microvoids, compared with the case without tension.

Key words: Polyacylonitrile(PAN) fiber, Stabilization, Small angle X-ray scattering(SAXS), Microvoid; , Tension

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GAO Feng, ZHAO Jiang*. Effect of Tension on the Microvoids Structure of Polyacylonitrile(PAN) Fibers During the Thermal Stabilization Stage[J]. Chem. J. Chinese Universities, 2011, 32(12): 2711.

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Effect of Tension on the Microvoids Structure of Polyacylonitrile(PAN) Fibers During the Thermal Stabilization Stage

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