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4. The stress relaxation modulus for a polyisobutene sample at 0 C is 2.5x105 N/m. The stress here is measured 10 min after imposition
4. The stress relaxation modulus for a polyisobutene sample at 0 C is 2.5x105 N/m. The stress here is measured 10 min after imposition of affixed deformation. Use the WLF equation to estimate the temperature at which the relaxation modulus is 2.5x105 N/m for a measuring time of 1 min. (assume the Tg for polyisobutene is -70 C).
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The WilliamsLandelFerry WLF equation is given by logE C1 T T0 C2 Where E is the relaxation modulu...
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Income Tax Fundamentals 2013
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
31st Edition
1111972516, 978-1285586618, 1285586611, 978-1285613109, 978-1111972516
