Studies on the thermal properties of caprolactam/long chain lactam copolymer |
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Authors: | Dongling Han Longxiao Liu Xinghua Wang |
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Affiliation: | (1) Department of Polymer Science and Engineering, Zhejiang University, 310027 Hangzhou, P. R. China;(2) XianJu United Institute of Polymer Material XianJu, Zhejiang University, 317300 Zhejiang, P. R. China |
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Abstract: | The thermal properties of caprolactam/long chain lactam copolymer were studied with a Perkin-Elmer DSC 7. The melting point (T m), heat of fusion (δH m), crystalline degree (X c), crystallization temperature (T c) and glass transition temperature (T g) of the copolymers increase with decrease of the content of the log chain lactam. From the changes in the mechanical properties with corresponding changes in the thermal properties, it is clear that the copolymers are thermal plastic and elastic. In addition, it is found that the results at a heating rate of 10 deg·min?1 are almost the same as that at 20 deg·min?1 after thermal history is erased. |
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Keywords: | caprolactam cast Nylon DSC thermal properties |
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