Broadband FIR absorption spectra of low-density polyethylene sheets containing six different antioxidants and estimation of their contents by chemometric analysis

Takaaki Ogishima, Chiaki Kuroda, Naoshi Hirai, Yoshimichi Ohki

研究成果: Article

1 引用 (Scopus)

抄録

Antioxidants are usually added to polymeric insulating materials to suppress oxidative degradation. However, the details of antioxidant added to a polymer are often not disclosed. On the other hand, compared to mid-infrared absorption spectroscopy, terahertz (THz) absorption spectroscopy, and far-infrared (FIR) absorption spectroscopy have not been performed so often. Based on the above backgrounds, six different kinds of antioxidants were added into low-density polyethylene sheets with four different contents, and their THz and FIR absorption spectra were measured. As a result, it has become clear that each antioxidant shows its specific absorption peaks, by which the antioxidants can be identified. Furthermore, the antioxidant content can be estimated by the absorption intensity of the specific peak. A chemometric analysis can make the estimation more accurately than a simple comparison of absorption intensity.

元の言語English
ページ(範囲)161-166
ページ数6
ジャーナルHigh Voltage
4
発行部数3
DOI
出版物ステータスPublished - 2019 9 1

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Infrared absorption
Low density polyethylenes
Antioxidants
Absorption spectra
Absorption spectroscopy
Infrared spectroscopy
Terahertz spectroscopy
Insulating materials
Polymers
Degradation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

これを引用

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