Effect of Electron Beam and γ-Ray Irradiation on the Curing of Epoxy Resin

Phil Hyun Kang; Jong Seok Park; Young Chang Nho

Macromolecular Research, Vol.10, No.6, 332-338, December, 2002

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Effect of Electron Beam and γ-Ray Irradiation on the Curing of Epoxy Resin

Phil Hyun Kang, Jong Seok Park, and Young Chang Nho^†

Radioisotopes.Radiation Application Team, Korea Atomic Energy Research Institute, P.O. Box 105, Yuseong, Daejon 305-600, Korea

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The effect of an electron beam and γ-ray irradiation on the curing of epoxy resins was investigated. Diglycidyl ether of bisphenol A (DGEBA) and diglycidyl ether of bisphenol F (DGEBF) as epoxy resin were used. The epoxy resins containing 1.0-3.0 wt% of triarylsulphonium hexafluoroantimonate(TASHFA) and triarylsulphonium hexafluorophosphate(TASHFP) as initiator were irradiated under nitrogen at room temperature with different dosage of EB and γ-rays from a Co(60) source. The chemical and mechanical characteristics of irradiated epoxy resins were compared after curing of EB and γ-ray irradiation. The thermal properties of cured epoxy were investigated using dynamic mechanical thermal analysis. The chemical structures of cured epoxy were characterized using near infrared spectroscopy. Mechanical properties such as flexural strength, modulus were measured. The gel fraction of DGEBA with γ-ray was higher than that of the epoxy with EB at the same dose. Young’s modulus of the sample irradiated by γ-ray is higher than that of sample cured by EB. From the result of strain at yield, it was found that the epoxy cured by γ-ray had a higher stiff property compared with the irradiated by EB.

Keywords:epoxy resins;electron beam;γ-ray irradiation;curing;initiator

[References]

May CA, Epoxy Resin: Chemistry and Technology, 2nd Editions, Marcel Dekker, New York (1988)
Goulding TM, Pizzi A, Mattal KL, Handbook of Adhesive Technology, Marcel Dekker, New York, pp. 531 (1994)
Chen M, Ren AS, Wang JF, Lee MS, Dalton LR, Zhang H, Sun G, Steirer WH, Polym. Prepr., 40, 162 (1999)
Vendroux G, Hocquellet M, Boursereau F, Dourthe P, RadTech Europe 97, Conference Proceedings, 462 (1997)
Janke CJ, Norris RE, Yarborough K, Proceedings of the 42nd International SAMPE Symposium, 42, 477 (1997)
Crasto AS, Kim RY, Rice BP, Proceedings of the 42nd International SAMPE Symposium, 42, 487 (1997)
Parrot P, Boursereau F, Proceedings of the 42nd International SAMPE Symposium, 44, 1254 (1999)
Abrams F, Tolle TB, Proceedings of the 42nd International SAMPE Symposium, 42, 548 (1997)
Goodman DL, Birx DL, Plamese GR, Chen A, Proceedings of the 42nd International SAMPE Symposium, 41, 207 (1996)
Crivello JV, Walton TC, Mailk R, Chem. Mater., 9, 1273 (1997)
Crivello JV, Nucl. Instr. Meth., B151, 8 (1999)
Singh A, Silverman J, Radiation Processing of Polymers, Hauser Publishers, New York (1992)
Crivello JV, Fan M, Bi D, J. Appl. Polym. Sci., 44, 9 (1992)
Daidson RS, Wilkinson SA, J. Photochem. Photobiol. A-Chem., 58, 123 (1991)
Anseth KS, Bowman CN, Peppas NA, Polym. Bull., 31, 229 (1993)
Charlesby A, Atomic Radiation on Polymers, Pergamon Press, Oxford (1960)
Chapiro A, Chemistry of Polymeric Systems, Interscience Publishers, New York (1962)
Min BG, Stachurski ZH, Hodgkin JH, Heath GR, Polymer, 34, 3620 (1993)
Patacz C, RadTech Europe 97, Conference Proceedings, 17 (1997)

[Referenced By]

[Related Articles]

[1] May CA, Epoxy Resin: Chemistry and Technology, 2nd Editions, Marcel Dekker, New York (1988)

[2] Goulding TM, Pizzi A, Mattal KL, Handbook of Adhesive Technology, Marcel Dekker, New York, pp. 531 (1994)

[3] Chen M, Ren AS, Wang JF, Lee MS, Dalton LR, Zhang H, Sun G, Steirer WH, Polym. Prepr., 40, 162 (1999)

[4] Vendroux G, Hocquellet M, Boursereau F, Dourthe P, RadTech Europe 97, Conference Proceedings, 462 (1997)

[5] Janke CJ, Norris RE, Yarborough K, Proceedings of the 42nd International SAMPE Symposium, 42, 477 (1997)

[6] Crasto AS, Kim RY, Rice BP, Proceedings of the 42nd International SAMPE Symposium, 42, 487 (1997)

[7] Parrot P, Boursereau F, Proceedings of the 42nd International SAMPE Symposium, 44, 1254 (1999)

[8] Abrams F, Tolle TB, Proceedings of the 42nd International SAMPE Symposium, 42, 548 (1997)

[9] Goodman DL, Birx DL, Plamese GR, Chen A, Proceedings of the 42nd International SAMPE Symposium, 41, 207 (1996)

[10] Crivello JV, Walton TC, Mailk R, Chem. Mater., 9, 1273 (1997)

[11] Crivello JV, Nucl. Instr. Meth., B151, 8 (1999)

[12] Singh A, Silverman J, Radiation Processing of Polymers, Hauser Publishers, New York (1992)

[13] Crivello JV, Fan M, Bi D, J. Appl. Polym. Sci., 44, 9 (1992)

[14] Daidson RS, Wilkinson SA, J. Photochem. Photobiol. A-Chem., 58, 123 (1991)

[15] Anseth KS, Bowman CN, Peppas NA, Polym. Bull., 31, 229 (1993)

[16] Charlesby A, Atomic Radiation on Polymers, Pergamon Press, Oxford (1960)

[17] Chapiro A, Chemistry of Polymeric Systems, Interscience Publishers, New York (1962)

[18] Min BG, Stachurski ZH, Hodgkin JH, Heath GR, Polymer, 34, 3620 (1993)

[19] Patacz C, RadTech Europe 97, Conference Proceedings, 17 (1997)