Dissolution, hydrolysis and crystallization behavior of polyamide 6 in superheated water
作者： Zhi-liang Wang , Jia-li Xu , Lian-jia Wu , Xin Chen , Shu-guang Yang
DOI: 10.1007/S10118-015-1682-3
关键词:
摘要: The dissolution, crystallization and hydrolysis behaviors of polyamide 6 (PA 6) in superheated water (140 °C ≤ TH 200 °C) are investigated. hydrothermal processing PA can be divided into four regions: (I) < 140 °C, (II) 155 (III) 160 (IV) ≥ °C. Below the does not have obvious impact on 6. Between an annealing effect is observed that hydrothermally treated resin shows increased melting temperature lamellar thickness compared with original induces both surface swelling. Above dissolves fully water. As water, takes place becomes more prominent at higher temperatures longer time. induced molecular weight decrease fits exponential decay.
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