Effect of supercritical carbon dioxide on the crystallization behavior of poly(ether ether ketone)

2007 ◽  
Vol 45 (21) ◽  
pp. 2927-2936 ◽  
Author(s):  
Dong Wang ◽  
Hong Gao ◽  
Wei Jiang ◽  
Zhenhua Jiang
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Crystallization Behavior ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Supercritical Carbon

Study on the Crystallization Behavior of PAN Fibers during Hot-Drawing Process in Supercritical Carbon Dioxide Fluid with Different Strain

2020 ◽  
Vol 976 ◽  
pp. 84-89
Author(s):  
Meng Meng Qiao ◽  
Hai Juan Kong ◽  
Xiao Ma Ding ◽  
Zhi Feng Hu ◽  
Mu Huo Yu
Keyword(s):  
Mechanical Properties ◽  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Carbon Fibers ◽  
Crystallization Behavior ◽  
Strength Analysis ◽  
Drawing Process ◽  
Hot Drawing ◽  
Pan Fibers ◽  
Supercritical Carbon

Hot-drawing of polyacrylonitrile (PAN) fibers is an important step in the production of carbon fibers. In this article, we investigated the effect of strain on the crystallization behavior and mechanical properties of PAN fibers treated in supercritical carbon dioxide (Sc-CO2) fluid. We mainly used the methods of X-ray diffraction (XRD), monofilament strength analysis and differential scanning calorimeter (DSC) to study the crystallization behavior, mechanical properties and thermal behavior of PAN fibers during hot-drawing process. The experimental results showed that the crystallinity and mechanical properties of PAN fibers both increased a lot under the action of strain during hot-drawing in Sc-CO2 fluid. This provides an important method for preparation of higher performance PAN precursor for PAN-based carbon fibers.

Crystallization behavior of poly(ether ether ketone ketone)

1996 ◽  
Vol 61 (11) ◽  
pp. 1999-2007 ◽  
Author(s):  
Junzuo Wang ◽  
Junkui Cao ◽  
Yan Chen ◽  
Yangchuan Ke ◽  
Zhongwen Wu ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

Investigation on the crystallization behavior of poly(ether ether ketone)/poly(phenylene sulfide) blends

2008 ◽  
Vol 108 (3) ◽  
pp. 1829-1836 ◽  
Author(s):  
Ri-Chao Zhang ◽  
Yi Xu ◽  
Zhongyuan Lu ◽  
Min Min ◽  
Yong Gao ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Phenylene Sulfide
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