二次拉伸温度对PAN原丝中微孔洞形貌变化的影响

J4 ›› 2009, Vol. 47 ›› Issue (05): 1054-1056.

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Influence of Secondary Stretching Temperature on |Configuration Change of |Microvoids in Polyacylonitrile-based Precursor Fibres

LI Yan gen^1,2, HUANG Zu fei¹, WANG Chun zhong^1

1. College of Materials Science and Engineering, Jilin University, Changchun 130012, China;2. College of Science, Changchun University, Changchun |130022, China

Received:2008-11-20 Online:2009-09-26 Published:2009-11-03
Contact: WANG Chun zhong E-mail:wcz@jlu.edu.cn

Abstract

Abstract:

The influence of stretching temperature on the configuration of the microvoids in PAN precursor fibres was investigated by multi\|orientated one\|dimensional small angle X\|ray scattering. The results show that though the relative content of microvoids （V/V₀） is increased in some degree at the relative temperature 2T₀, the oriented angle () of microvoids would be the minimal, and the ratio of the length with the diameter of microvoids (L/2R) would be the maximal. These are benefit to increasing the mechanics performance of fibers. But when the heating temperature is too high, the changes of micropores will be on the contrary.

Key words: PAN precursor fibre, multi-orientated one-dimensional SAXS, microvoid

CLC Number:

LI Yan-Gen, HUANG Jie-Fei, WANG Chun-Zhong-. Influence of Secondary Stretching Temperature on |Configuration Change of |Microvoids in Polyacylonitrile-based Precursor Fibres[J].J4, 2009, 47(05): 1054-1056.

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Influence of Secondary Stretching Temperature on |Configuration Change of |Microvoids in Polyacylonitrile-based Precursor Fibres

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