Influences of Electron Beam Irradiation on Mass of Water Absorption for Acryl Resin

• Sato Hironori

  Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University

• Iwata Keisuke

  Department of Science and Technology, Graduate School of Science and Technology, Tokai University

• Kanda Masae

  Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University

• Tonegawa Akira

  Department of Science and Technology, Graduate School of Science and Technology, Tokai University

• Nishi Yoshitake

  Department of Metallurgical Engineering, Graduate School of Engineering, Tokai University Department of Science and Technology, Graduate School of Science and Technology, Tokai University

Bibliographic Information

Other Title

• アクリル樹脂の吸水量に及ぼす電子線照射の影響
• アクリル ジュシ ノ キュウスイリョウ ニ オヨボス デンシセン ショウシャ ノ エイキョウ

Abstract

  To investigate the influence of electron beam (EB) irradiation on water absorption of acryl resin, the acryl resin samples before and after the irradiation were dipped in the water at 353 K. The water absorption increased the mass (1.81 mass% at 10⁵ s) of irradiated acryl resin, which mass was larger than that (1.75 mass% at 10⁵ s) before irradiation. When the absorption time was less than 10⁴ s, the EB irradiation tremendously increased the mass (0.054 mass%) of absorbed water. Based on surface energy and extended Fowkes theory, the influence of EB irradiation on the water absorption was evaluated to discuss the mass increase induced by EB irradiation. It strongly enhanced the acryl solid-liquid interfacial energy (interfacial energy) of water, which was higher than those of n-hexadecane and 1-bromonaphtalen. EB irradiation increased the interfacial energy of hydrogen bond strength. Based on ESR results, EB irradiation broke the weakly bonded pairs and formed the dangling bonds in acryl resin, whereas water absorption annihilated the dangling bonds. The influence of electron beam (EB) irradiation on water absorption of acryl resin was mainly explained by the dangling bond formation in acryl resin.<br>

Journal

• Journal of the Japan Institute of Metals and Materials

  Journal of the Japan Institute of Metals and Materials 72 (5), 366-370, 2008

  The Japan Institute of Metals and Materials

Keywords

• water absorption
• electron beam
• acryl resin
• wettability
• dangling bond
• surface energy

Details

• CRID: 1390282681456687360
• NII Article ID: 10021150348
• NII Book ID: AN00187860
• DOI: 10.2320/jinstmet.72.366
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL BIB ID: 9514399
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9514399
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet/72/5/72_5_366/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed