The 83rd JSAP Autumn Meeting 2022

Presentation information

Oral presentation

12 Organic Molecules and Bioelectronics » 12.2 Characterization and Materials Physics

[22p-C106-1~16] 12.2 Characterization and Materials Physics

Thu. Sep 22, 2022 1:30 PM - 6:00 PM C106 (C106)

Yoichi Yamada(Univ. of Tsukuba), Yasuyuki Yokota(RIKEN), Fukutani Keisuke(IMS)

4:15 PM - 4:30 PM

[22p-C106-11] Observation of electronic structure by deep ultraviolet absorption spectroscopy and photoelectron spectroscopy of insulating polymers and additives showing streaming electrification

〇(M1)Naoto Kubo1, Yoshizawa Masahiro1, Ushiroda Rio1, Watanabe Kenta1, Tanaka Yuya4, Matumura Takahiro5, Ishii Hisao1,2,3 (1.Chiba Univ GSSE, 2.Chiba Univ CFS, 3.Chiba Univ MCRC, 4.Gunma Univ GSST, 5.Toyobo)

Keywords:streaming electrification, insulator, photoelectron spectroscopy

Electret filters, a material in which a polypropylene (PP) base material is given an electrostatic charge from the method of flow charging by contact with water, are in use. It is known that the addition of light stabilizers (HALS) to the PP base material improves its electrification properties. In this study, to investigate the reason for this improvement, we report on the usefulness of this technique by using deep ultraviolet absorption spectroscopy and photoelectron spectroscopy to measure PP, PP with HALS, and a single HALS film as the base material of an electret filter.