4He permeation and H2O uptake of cyanate ester resins-an alternative to commonly used epoxy resins at low temperature

Sachiko Nakamura, Takenori Fujii, Shoji Matsukawa, Masayuki Katagiri, Hiroshi Fukuyama

研究成果: ジャーナルへの寄稿会議記事査読

1 被引用数 (Scopus)

抄録

Cyanate ester (CE) thermoset is a polymer with a high glass-Transition temperature of ≈ 300 °C. CE is expected to be an alternative to Stycast 1266 as a sealing and casting glue for low temperature experiments, especially for adsorption experiments where baking of the substrate at T > 100 °C before cooling is required to eliminate surface contaminations. We experimentally confirmed that thermosets of CE monomers are non-porous and absorbs/desorbs water very little from measurements of (1) 4He permeation properties at temperatures from room temperature (RT) to 77 K and of (2) weight gains (δW) after storage for days in water and in air at RT. The 4He permeation is rather large at RT but negligibly small at T 130 K where the diffusion constant of 4He in CE is vanishingly small. δW in water and air are 0.3-0.5% and 0.5-1.0%, respectively, which are much smaller than those of Stycast 1266. Therefore, cyanate ester is an excellent alternative to commonly used epoxy resins especially in surface-sensitive experiments at low temperature.

本文言語英語
論文番号012080
ジャーナルJournal of Physics: Conference Series
969
1
DOI
出版ステータス出版済み - 4月 19 2018
外部発表はい
イベント28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, スウェーデン
継続期間: 8月 9 20178月 16 2017

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学一般

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