Limitations of Test Methods for Plastics 2000
DOI: 10.1520/stp14339s
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Estimation of Lifetime Under Non-Isothermal Conditions

Abstract: One possibility for prediction of lifetime of polymer products is given by the estimation of the limits of application by time-temperature-extrapolation of measured damage processes. A time-lapsing method for describing aging is given by the extrapolation with the statement of Arrhenius. If the temperature is not constant over lifetime there are two possibilities to estimate lifetime by time-lapsing lifetime tests. When the maximum temperature is supposed for the whole lifetime, an overdimensioning of the prod… Show more

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“…Polyethylene, crosslinked polythene, and butyl elastomer all display deviation from Arrhenius behavior above 100–150°C [13–15]. It is also important to age the material at a temperature under which the polymer is in the same physical state as experienced at ambient temperature [16, 17]. At room temperature PEBA is typically between the glass transitions of the PE and PA segments.…”
Section: Introductionmentioning
confidence: 99%
“…Polyethylene, crosslinked polythene, and butyl elastomer all display deviation from Arrhenius behavior above 100–150°C [13–15]. It is also important to age the material at a temperature under which the polymer is in the same physical state as experienced at ambient temperature [16, 17]. At room temperature PEBA is typically between the glass transitions of the PE and PA segments.…”
Section: Introductionmentioning
confidence: 99%
“…There currently exists an extensive body of literature on polymer degradation kinetics wherein the contributions typically describe a series of separate experiments, each conducted isothermally but at a different temperature across a wide range of temperatures, that are then used collectively in order to predict an expected outcome at a temperature typical of service conditions [1,[3][4][5][6][7][8][9][10][11][12][13][14][15].…”
Section: Isothermal and Non-isothermal Kineticsmentioning
confidence: 99%