scholarly journals Nanopore change law and mechanism of polyacrylonitrile based carbon fiber precursor in spinning process

2015 ◽  
Vol 64 (4) ◽  
pp. 046101
Author(s):  
Tang Hai-Tong ◽  
Ao Yu-Hui ◽  
Wang Cong ◽  
Zhao Rui-Xue ◽  
Gao Zhong-Min ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Spinning Process ◽  
Carbon Fiber Precursor

A new modification method of exploded lignin for the preparation of a carbon fiber precursor

1993 ◽  
Vol 48 (8) ◽  
pp. 1485-1491 ◽  
Author(s):  
K. Sudo ◽  
K. Shimizu ◽  
N. Nakashima ◽  
A. Yokoyama
Keyword(s):  
Carbon Fiber ◽  
Modification Method ◽  
Carbon Fiber Precursor

Influence of ozone on chemical reactions during the stabilization of polyacrylonitrile as a carbon fiber precursor

2008 ◽  
Vol 108 (6) ◽  
pp. 3990-3996 ◽  
Author(s):  
Yongping Hou ◽  
Tongqing Sun ◽  
Haojing Wang ◽  
Dong Wu
Keyword(s):  
Carbon Fiber ◽  
Chemical Reactions ◽  
Carbon Fiber Precursor

Polyacrylonitrile/lignin sulfonate blend fiber for low-cost carbon fiber

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42259-42265 ◽  
Author(s):  
Xiaozhong Dong ◽  
Chunxiang Lu ◽  
Pucha Zhou ◽  
Shouchun Zhang ◽  
Liyong Wang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Low Cost ◽  
Wet Spinning ◽  
Blend Fiber ◽  
Spinning Process ◽  
Lignin Sulfonate

Polyacrylonitrile/lignin sulfonate blend fiber spun via wet spinning process could be stabilized rapidly, and thus suitable to produce a low-cost carbon fiber.

Influence of Melt Temperature on Structure of Polyacrylonitrile in Ionic Liquids during Plasticized Melt Spinning Process

2012 ◽  
Vol 268-270 ◽  
pp. 483-486
Author(s):  
Yin Cai Tian ◽  
Ke Qing Han ◽  
Wen Hui Zhang ◽  
Jing Jie Zhang ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Melt Spinning ◽  
Extrusion Process ◽  
Heat Emission ◽  
Processing Efficiency ◽  
Melt Temperature ◽  
Stabilization Process ◽  
In Situ Modification ◽  
Spinning Process ◽  
Dehydrogenation Reactions

The carbon fiber has excellent properties; however, the high cost limited its wide application. Here we report a novel process to reduce the heat emission during stabilization by in situ modification of spinning melt. In this paper, the effect of extruding temperature on the structures of PAN in the PAN/ILs melt was investigated by twin-screw extruder. FTIR and UV-vis absorption spectra of modified samples showed the formation of C=C and C=N group, which indicated the occurrence of cyclization and dehydrogenation reactions of PAN during extrusion process. The degree of cyclization was calculated from DSC test and the degree of cyclization can be up to 24.5% with the residence time of 14 min at 210 oC, which could decrease the heat release in the subsequent stabilization process during carbon fiber production. Therefore, this method should be benefit to improve the processing efficiency during stabilization process.

Characterizing Woodiness Carbon Fiber Precursor by Fractal Geometry Approach in Different Curing Conditions

2013 ◽  
Vol 710 ◽  
pp. 122-126
Author(s):  
Zhi Gao Liu ◽  
Qiu Hui Zhang ◽  
Guang Jie Zhao ◽  
Lu Zhang
Keyword(s):  
Fractal Dimension ◽  
Carbon Fiber ◽  
Fractal Dimensions ◽  
Morphological Characters ◽  
Curing Conditions ◽  
Surface Fractal ◽  
Dimension Measurement ◽  
Microscopy Image ◽  
Calculation System ◽  
Carbon Fiber Precursor

For exploring the variation of the surface morphology of carbon fiber precursor which was obtained from different curing conditions,this paper used the fractal dimension measurement method to analyze morphological characters of carbon fiber precursor surface through the electronic scanning electron microscopy image recognition and computer fractal calculation system. The experimental results show:the surface fractal dimensions of carbon fiber precursor were between 2.480~2.622 by TPSAM method, and the surface fractal dimensions of carbon fiber precursor were between 2.555~2.633 by PCM method, both methods show that the carbon fiber precursor surface is smooth. And the CCM is 2.678~2.755, this method shows that the precursor surface is concave and convex. The fractal dimension value obtained by TPSAM method and PCM method is closer, while the CCM is different. But the trend is almost the same, which shows that using the fractal dimension method to desirable the surface structure of carbon fiber precursor is desirable.

Pyrolysis Pathways of Sulfonated Polyethylene, an Alternative Carbon Fiber Precursor

2013 ◽  
Vol 135 (16) ◽  
pp. 6130-6141 ◽  
Author(s):  
Jarod M. Younker ◽  
Tomonori Saito ◽  
Marcus A. Hunt ◽  
Amit K. Naskar ◽  
Ariana Beste
Keyword(s):  
Carbon Fiber ◽  
Carbon Fiber Precursor
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