【摘要】 主要详细对比了不同处理条件下涤纶长丝的沸水收缩率和干热收缩率的差异。当热盘温度固定时,五叶形截面涤纶长丝和多异涤纶长丝的干热收缩率和沸水收缩率都随着热板温度的升高而下降。而对于不同的热处理条件,其干热收缩率和沸水收缩率的差异表现出较为复杂的关系,这种结果可通过玻璃化温度转变的不同来进行解释。更多还原

【Abstract】 This paper provided a detailed comparison of shrinkages in boiling water and in the hot air of the PET filaments under different conditions.When the temperature of the top godet was fixed,the shrinkages of two different kinds of filaments decreased with the increase of the temperature of the plate.The shrinkage in the boiling water compared with that in hot air showed a very complex relationship between the heat treatment conditions.These results could be explained by the change of the Tg(glass transition temperature).更多还原