Study on Hydrolysis Process of Polyacrylonitrile Fibers with Visualization Technique

Author

Jin-fang Chen ; Yang Li-xia ; Zhou Jing-jing ; Chen Qi-ming ; Guo Jia

Author_Institution

Key Lab. of Green Chem. Process of Minist. of Educ., Wuhan Inst. of Technol., Wuhan, China

fYear

2011

fDate

16-18 May 2011

Firstpage

1

Lastpage

3

Abstract

Polyacrylonitrile (PAN) fibers were hydrolyzed in an alkaline condition, and the hydrolysis process was observed with a self-made visual device. Under the condition of mass ratio of PAN to NaOH to H₂O being 1:0.6:100, the sample was collected every 1 h and used for observation. It could be seen from the pictures obtained, the entire fiber surface was rough bark-like when they were hydrolyzed for 3 h. After 4 h, it showed a clear and grid structure, 5 h later a ring netting, and 6 h later the ring netting ruptured. Then they were decomposed completely into macro-molecules.

Keywords

decomposition; dissolving; macromolecules; optical microscopy; polymer fibres; rough surfaces; solvation; video cameras; alkaline condition; bark-like rough surface; decomposition; grid structure; hydrolysis; macromolecules; optical microscopy; polyacrylonitrile fibers; ring netting; self-made visual device; time 3 h; video capture card; visualization technique; Chemical industry; Optical fiber communication; Optical fiber devices; Optical fiber dispersion; Optical fiber theory; Polymers; Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2011 Symposium on

Conference_Location

Wuhan

ISSN

2156-8464

Print_ISBN

978-1-4244-6555-2

Type

conf

DOI

10.1109/SOPO.2011.5780556

Filename

5780556