Cross-Linking of Ethylene-Octene Copolymer (EOC) by Dicumyl Peroxide (DCP)
In: Journal of applied polymer science (Print), Jg. 121 (2011), Heft 1, S. 521-530
Online
academicJournal
- print, 28 ref
Zugriff:
Ethylene-octene copolymer (EOC) was crosslinked by dicumyl peroxide (DCP) at various temperatures (150-200°C). Six concentrations of DCP in range 0.2-0.7 wt % were investigated. cross-linking was studied by rubber process analyzer (RPA) and by differential scanning calorimetry (DSC). From RPA data analysis real part modulus s', tan δ, and reaction rate were investigated as a function of peroxide content and temperature. The highest s'max and the lowest tan δ were found for 0.7% of DCP at 150°C. Chain scission was analyzed by slope analysis of conversion ratio, X in times after reaching the maximum. Less susceptible to chain scission are temperatures in range 150-170°C and peroxide levels 0.2-0.5%. Heat of reaction was analyzed by DSC at various heating rates (5―40°C min―1). It was found to be exothermic. By projection to zero heating rate, the reaction was found to start at 128°C with the maximum at 168°C.
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Cross-Linking of Ethylene-Octene Copolymer (EOC) by Dicumyl Peroxide (DCP)
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Autor/in / Beteiligte Person: | SVOBODA, Petr ; POONGAVALAPPIL, Sameepa ; THERAVALAPPIL, Rajesh ; SVOBODOVA, Dagmar ; MOKREJS, Pavel ; KOLOMAZNIK, Karel ; OUGIZAWA, Toshiaki ; INOUE, Takashi |
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Zeitschrift: | Journal of applied polymer science (Print), Jg. 121 (2011), Heft 1, S. 521-530 |
Veröffentlichung: | Hoboken, NJ: Wiley, 2011 |
Medientyp: | academicJournal |
Umfang: | print, 28 ref |
ISSN: | 0021-8995 (print) |
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