【摘要】 采用涤纶特制部分取向丝 ,对其采用不同的拉伸温度和拉伸比 ,分析不同拉伸条件对拉伸丝干热伸长率的影响 ,优选拉伸条件为 :拉伸温度高于玻璃化温度 2 2 .5℃、拉伸比 1.4 5,可以得到干热伸长率达 12 .6 3%的自伸长纤维。并且在工业化试验设备上制得干热伸长率为 14% ,沸水伸长率为 7%的自伸长纤维。更多还原

【Abstract】 PET special as\|spun filaments have been drawn at different temperatures and draw ratios. The effect of different draw conditions on hot elongation was studied. The self\|elongation filament with 12 63% hot elongation can be prepared when draw temperature is 22 5 ℃ higher than T g and draw ratio is 1 45. Self\|elongation filaments whose hot elongation is 14% and boiling elongation is 7% have been obtained on industrial trial machine.更多还原