Effects of Homogeneous Low Energy Electron Beam Irradiation (HLEBI) on Adhesive Force of Peeling of Carbon Fiber Reinforced Epoxy Polymer (CFRP) and Polytetrafluoroethylene (PTFE)

• Kubo Chisato

  Graduate School of Engineering, Tokai University

• Kanda Masae

  School of Engineering, Tokai University

• Nishi Yoshitake

  Graduate School of Engineering, Tokai University School of Engineering, Tokai University

抄録

The effects of homogeneous low energy (170 keV) electron beam irradiation (HLEBI) on the adhesion force indicated by peeling resistance (^oF_p) at each accumulative probability of peeling resistance (P_p) of laminated sheets of carbon fiber reinforced epoxy polymer (CFRP) and polytetrafluoroethylene (PTFE) were investigated. The slight detectable adhesive force of ^oF_p before treatment were 0.3 and 7.6 Nm⁻¹ at low and mid P_p of 0.06 and 0.50, respectively, since the intermolecular attractive force exists at PTFE and epoxy polymers at cross-linking zone. Although additional dose of HLEBI apparently reduced the ^oF_p of laminated sheets irradiated at more than 0.30 MGy as usual radiation damages, small dose of 0.04 to 0.22 MGy-HLEBI increased the adhesive force of peeling (^oF_p) substantially over the untreated. 0.13 MGy-HLEBI enhanced the ^oF_p up to the largest values of 9.8 and 44.0 Nm⁻¹, respectively, which were more than 30.5 and 5.8 times larger than those before treatment. Based on the 3-parameter Weibull equation, the statistically lowest ^oF_p value at P_p = 0 (F_s) was increased from zero to 9.2 Nm⁻¹ by applying the 0.13 MGy HLEBI. XPS (X-ray photoelectron spectrometry) measurements detected the fluorine (1s) signal on peeled surface of CFRP side indicating the residual PTFE adhered well to the epoxy of CFRP by the HLEBI. Thus, the fracture probably propagated through the PTFE inside near cross-linking zone of interface. This is probably a result of adhesion force of PTFE/CFRP being made stronger than the cohesive force of epoxy polymer. When HLEBI cut the chemical bonds and generated active terminated atoms with dangling bonds of Epoxy and PTFE polymers in cross-linking zone with chemical bonding around adhesive interface, strengthening the adhesive force indicated by ^oF_p was mainly induced by the chemical bonding, as well as intermolecular attractive force in cross-linking polymers.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 56 (9), 1517-1522, 2015

  公益社団法人 日本金属学会

キーワード

• carbon fiber reinforced epoxy polymer (CFRP)
• polytetrafluoroethylene PTFE
• adhesion
• electron beam

詳細情報

• CRID: 1390001204253070080
• NII論文ID: 130005094773
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.maw201508
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 026709680
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026709680
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/56/9/56_MAW201508/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可