摘要
本文用时间分辨傅里叶变换红外光谱（ＴＲ－ＦＴＩＲＳ）法研究了聚偏氟乙烯（ＰＶＤＦ）的晶型转变，并以５０８ｃｍ－１峰的增强和５２８ｃｍ－１峰的减弱表示α晶型向β晶型的转变，瞬变的初期时间约５ｍｓ。在晶型转变中伴随有“磁滞回线”的非线性效应。
The study of polyvinylidene fluoride (PVDF)by time resolved Fourier transform infrared spectroscopy (TR FTIRS)was reported.The instantaneous change and process of both α form and β form during transformation were studied under the pulse electric field excitation.Transformation of α form to β form was indicated by the increasing of the peak at 508cm -1 ,the decreasing of the peak at 528cm -1 and a shift of those peaks.The transient change time was about 5ms.The decreasing of the peak at 528cm -1 was nonlinear.A hysteresis like loop was observed,which was related with the biaxially orientated property of PVDF and was in good agreement with its polarizated hysteresis loop.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1997年第1期47-49,共3页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金
关键词
聚偏氟乙烯
IR-FTIRS
晶变
Time resolved Fourier transform infrared spectroscopy, Polyvinylidene fluoried, Crystal phase transformation, Hysteresis loop
