Terahertz Absorption Spectroscopy of Poly(ether ether ketone)

被引：0

作者：

Kaneko, Takuya ^{[1
]}

Hirai, Naoshi ^{[2
]}

Ohki, Yoshimichi ^{[1
,2
]}

机构：

[1] Waseda Univ, Dept Elect Engn & Biosci, Tokyo, Japan

[2] Waseda Univ, Res Inst Mat Sci & Technol, Tokyo, Japan

来源：

2017 INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATING MATERIALS (ISEIM), VOLS 1 & 2 | 2017年

关键词：

Terahertz time-domain spectroscopy; crystalline polymer; X-ray diffraction; infrared absorption spectroscopy; crystallinity; non-destructive diagnosis; PEEK; TEMPERATURE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The crystallinity of sheets of poly(ether ether ketone) (PEEK) was changed by thermal treatments conducted at 295 degrees C for various periods and their terahertz (THz) and Fourier transform infrared absorption (FT-IR) spectra were obtained. As a result, it has been confirmed that an absorption peak appears at around 3.5 THz in the sheet samples that exhibit clear X-ray diffraction patterns at 2 theta = 18.8, 20.8, 22.8, and 28.8. In contrast, no obvious sample-dependent changes were observed in FT-IR spectra. The absorption at around 3.5 THz shows a shift in frequency to a degree proportional to the crystallinity. Its maximum intensity is also in proportion to the crystallinity. These results indicate that the absorption at 3.62 THz has a close relation with the crystallinity of PEEK This in turn means that the THz absorption spectroscopy can be used for estimating the crystallinity of PEEK

引用

页码：539 / 542

页数：4

共 15 条

[1]

[Anonymous], T FUND MAT I ELECT E

[2] THE MORPHOLOGY OF POLY(ARYL-ETHER-ETHER-KETONE) [J].