Artículos de revistas
The Photo-oxidation Of Epdm Rubber: Part Iv-degradation And Stabilization Of Vulcanizates
Registro en:
Polymer Degradation And Stability. , v. 36, n. 2, p. 169 - 172, 1992.
1413910
10.1016/0141-3910(92)90153-V
2-s2.0-0026696524
Autor
Guzzo M.
De Paoli M.-A.
Institución
Resumen
The photo-oxidation reactions of untreated and peroxide-vulcanized EPDM rubbers have been compared. The vulcanized samples show a degradation rate higher than that of the untreated rubber, and this is assigned to photo-initiation caused by vulcanization by-products. We also observed that the peroxide concentration used for vulcanization affects the photodegradation of the vulcanizate. An effective stabilizing system combining a benzotriazole and a hindered phenol was used with the vulcanized EPDM and tested for both photo-stabilization and thermal stabilization. © 1992. 36 2 169 172 Loan, (1964) J. Polym. Sci., 2 A, p. 3053 Baldwin, Verstrate, Polyolefin Elastomers Based on Ethylene and Propylene (1972) Rubber Chemistry and Technology, 45, p. 709 Harpell, Walrod, (1973) Rubber Chem. Technol., 46, p. 1007 Keller, (1988) Rubber Chem. Technol., 61, p. 238 De Paoli, Geuskens, (1988) Polym. Deg. and Stab., 21, p. 277 Duek, Juliano, Guzzo, Kascheres, De Paoli, (1990) Polym. Deg. and Stab., 28, p. 235 Duek, De Paoli, The photo-oxidation of EPDM rubber: Part III—Mechanistic aspects and stabilization (1990) Polymer Degradation and Stability, 30, p. 283 Van Dumpt, (1988) Rubber World, 197, p. 33 Berg, (1985) Plastics Additives Handbook, p. 650. , R.G. Gächter, H. Müller, Hanser, Munich