会议专题

The Effect of Ultrasonic Etching on the Structure of Stabilized PAN Fibers

  The effect of ultrasonic etching on the crystalline structure,fibrillar structure,skin-core structure of stabilized PAN fibers was studied by XRD and SEM.It has been found various degree of decrease occurs in the crystallite size and crystallinity of fibers heated at different temperatures after ultrasonic etching.Fibrillar structure of fibers heated at 195℃~245℃ appear after ultrasonic etching in 90wt% DMSO solution for 6h.When the stabilization temperature is over 245℃,no separated fibrils or macrofibrils are found.When stabilized fibers were etched in pure DMSO,skin-core morphology was observed for the fibers heated at 235℃~265℃.The method of ultrasonic etching using pure DMSO confirms the structural difference between the skin and the core,also makes the difference visual.

ultrasonic etching stabilized PAN fiber crystalline structure fibrillar structure skin-core structure

Xiuying HU Chengguo Wang Qifen Wang Wenbo Lu Meiiie YU

Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Educati Carbon Fiber Engineering Research Center, Faculty of Materials Science, Shandong University, Jinan 2 Institute of Shandong Nonmetallic Materials, Jinan 250031, China

国际会议

the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

厦门

英文

592-597

2012-01-04(万方平台首次上网日期,不代表论文的发表时间)