4. The stress relaxation modulus for a polyisobutene sample at 0 C is 2.5x105 N/m. The...
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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 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). 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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To use the WilliamsLandelFerry WLF equation to estimate the temperature at which the relaxation modu... View the full answer
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Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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