Browse > Article

Effects of Antioxidant and Thermal Treatment on the Radiation Resistance of Polypropylene  

Park Sung Hyun (Department of Industrial Chemistry, Chungnam National University)
Kim Hyung-Il (Department of Industrial Chemistry, Chungnam National University)
Kang Phil Hyun (Radiation Application Division, Korea Atomic Energy Research Institute)
Nho Young Chang (Radiation Application Division, Korea Atomic Energy Research Institute)
Publication Information
Polymer(Korea) / v.30, no.1, 2006 , pp. 10-13 More about this Journal
Abstract
The effects of antioxidants and thermal treatment on the radiation resistance of the gamma-ray irradiated polypropylene (PP) were studied. The PP was blended with various antioxidants and was fabricated into a sheet. The PP sheet was irradiated with gamma-ray to a dosage of 25kGy in the nitrogen atmosphere. The differences in both color and mechanical strength were investigated for the gamma-ray irradiated PP depending on the kind and the content of antioxidant. The residual amount of free radical and the variation of oxidation index were investigated for the gramma-ray irradiated PP with thermal treatment after irradiation. The PP having phosphite antioxidant showed little difference in color after gamma-ray irradiation compared with the PP having phenolic or mine antioxidant. Sufficient amount of free radical could be removed from the gamma-ray irradiated PP by the thermal treatment at $130\;^{\circ}C$ for 30 min. Thermally treated PP showed lower oxidation index than the PP without thermal treatment.
Keywords
gamma-ray; irradiation; antioxidant; thermal treatment; polypropylene;
Citations & Related Records

Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 K. Kereluk and R. S. Lloyd, J. Hosp. Research, 7, 7 (1969)
2 K. Sato, Radioisotopes, 32, 431 (1983)   DOI   ScienceOn
3 R. Pourahmad and R. Pakravan, Radiation Phys. Chem., 49, 285 (1997)   DOI   ScienceOn
4 J. C. Westfahl, C. J. Carman, and R. W Layer, Rubber Chem. Technol., 402, 45 (1972)
5 G. Khang and H. B. Lee, Bio-Medical Materials and Eng, 6, 323 (1996)
6 G. Burlinska, J. Bojarski, and J. Michalik, Radiation Phys. Chem., 47, 449 (1996)   DOI   ScienceOn
7 A. Rivaton, D. Lalande, and J. -L. Gardette, Nucl. Instr and Meth. in Phys. Res. B, 222, 187 (2004)   DOI
8 J. Bojarski, Z. Bulhak, G. Burlinska, I. Kaluska, Z. Zimek, and D. Szwojnicka, Radiation Phys. Chem., 46, 801 (1995)   DOI   ScienceOn
9 I. Krupa and A. S. Luyt, Polym. Degrad Stab., 72, 505 (2001)   DOI   ScienceOn
10 C. P. Sharma and M. Szycher, in Perspective Towards the 21th Century, Technomic Publishing, Lancaster, p 87 (1991)