What is a heat history, as applied to polymers, and why is it important in polymer technology?
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Heat history is the accumulated total amount of thermal energy input into the polymer system. Hence, if the polymer has been processed twice, the heat history will be roughly twice as much as if the polymer were only processed once. This is important, especially for heat-sensitive polymers, because excessive processing, or processing at very high temperatures, can lead to degradation.
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Indicate whether the statement is true or false
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Explain why polybutadiene is softer than polyisoprene
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When the glass box is unfolded, how many views are created and what are the names for these views?
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