Application of free electron laser in aramid processing

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	Application of free electron laser in aramid processing
	Wu, YJ ; Yang, LM ; Xu, YZ ; Yang, XP ; Li, YG ; Wang, MK ; Wang, DJ ; Wu, JG ; Xu, DF
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2006-01-10
卷号	27 期号:1 页码:140-143
关键词	Ir-fel Aramid Fiber Necking Phenomenon
ISSN号	0251-0790
英文摘要	Because the melting temperature of aramid is higher than its thermo-decomposition temperature, processing of aramid fiber in the molten state is not feasible. Here we propose an approach to process aramid fiber using infrared Free Electron User(FEL). The temporal structure of the FEL pulses allows the fiber to be excited to higher vibrational levels so that the polymer becomes soft enough to be processed without significant thermo-decomposition. Microscopic observation using convention optical microscope and polarized technique shows that "necking phenomenon" and re-orientation occur on an aramid fibrous sample that was treated with FEL under external strain. In comparison with the the sample without treatment of FEL, significant changes are observable on the morphology of the broken aramid fiber treated with FEL. The above results strongly suggest that the aramid fiber is molten under the excitation of FEL. FTIR spectroscopic studies show that no thermal decomposition was observed on the aramid sample after FEL treatment. The above result may be helpful to develop a new way to process aramid in the future.
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000234815500036
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/59657]
专题	中国科学院化学研究所
通讯作者	Xu, YZ
作者单位	1.Peking Univ, Dept Chem, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100081, Peoples R China 2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100080, Peoples R China 4.Peking Univ, Inst Heavy Ion Phys, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wu, YJ,Yang, LM,Xu, YZ,et al. Application of free electron laser in aramid processing[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(1):140-143.
APA	Wu, YJ.,Yang, LM.,Xu, YZ.,Yang, XP.,Li, YG.,...&Xu, DF.(2006).Application of free electron laser in aramid processing.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(1),140-143.
MLA	Wu, YJ,et al."Application of free electron laser in aramid processing".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.1(2006):140-143.