Stress Required to Stretch the Sample to 25 cm Length
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Question
A strip of elastomer 1 cm x 1 cm x 10 cm is stretched to 25-cm length at 25°C, a stress of 1.5 x 10-7 dynes/cm2 being required.
a) Assuming a tetrafunctional cross-linking mode, how many moles of network chains are there per cubic centimeter?
b) What stress is required to stretch the sample to only 15 cm, at 25°C?
c) What stress is required to stretch the sample to 25-cm length at 100°C?
Summary
This question belongs to Physics and discusses about tetrafunctional cross-linking mode.
Word count: NA
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