NDLI: X-ray analysis on crystal structures of crystalline polyimides

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X-ray analysis on crystal structures of crystalline polyimides

Content Provider	IEEE Xplore Digital Library
Author	Wei Wang Junhong Li Songbai Han Kai Sun Hongli Wang Yuntao Liu Dongfeng Chen
Copyright Year	2013
Description	Author affiliation: Neutron Scattering Lab., China Inst. of Atomic Energy, Beijing, China (Wei Wang; Junhong Li; Songbai Han; Kai Sun; Hongli Wang; Yuntao Liu; Dongfeng Chen)
Abstract	A high performance engineering plastic material based on crystalline polyimide was prepared by hot-press method after the resin was synthesized. The mechanical properties including tensile properties, compression properties, bending properties, impact toughness, shearing strength were first investigated. The material displayed excellent mechanical properties and could be used at high temperatures. Since the tensile experiment was operated at 25°C, 250°C and 280°C, respectively. So the progress of crystals grown was affected by load and temperature at the same time, and residual stress would be existed in the samples. X-ray diffraction experiments were then conducted to investigate the difference of crystal structures formed under different conditions. Results indicated that the main diffraction peaks were almost same, but the position of some week peaks changed a little. The material then isothermally crystallized at different temperatures and they displayed same crystal structures by X-ray diffraction experiment.
Starting Page	189
Ending Page	191
File Size	132419
Page Count	3
File Format	PDF
ISBN	9781467360180
e-ISBN	9781467360203
DOI	10.1109/FENDT.2013.6635553
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polyimide Crystal structures Temperature Diffraction Crystals Polyimides X-ray diffraction Mechanical factors X-ray analysis Residual stress
Content Type	Text
Resource Type	Article

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