中空橘瓣型PET/PA6双组分纺粘纤维生产工艺研究  

Production process of hollow segmented-pie PET/PA6 bicomponent spunbond fiber

作　　者：梁肖肖[1] 钱晓明[1] 王俊南[1] 张恒[1] 甄琪 任海华 

机构地区：[1]天津工业大学纺织学院,天津300387 [2]浙江金三发集团有限公司,浙江湖州313100 [3]廊坊中纺新元无纺材料有限公司,河北廊坊065000

出　　处：《合成纤维工业》2016年第1期27-30,共4页China Synthetic Fiber Industry

基　　金：天津市应用基础与前沿技术研究计划重点项目(15JCZDJC38500)

摘　　要：以聚对苯二甲酸乙二醇酯(PET)和聚己内酰胺(PA6)切片为原料,制备了中空橘瓣型PET/PA6双组分纺粘纤维,研究了熔体单孔挤出速度(V_m)和拉伸风压(P)对纤维直径、力学性能和结晶度的影响。研究结果表明:当V_m一定时,纤维直径和中空直径均随P增加而逐渐减小;当P一定时,纤维直径和中空直径均随V_m增加而增大;当V_m一定时,随着P增加,纤维断裂强度增加,断裂伸长率降低,结晶度增大;当V_m为1.2 g/min,P从0.10 MPa增加到0.35 MPa时,纤维直径由31.2μm减小到19.8μm,结晶度从4.32%增大到27.81%。A hollow segmented-pie polyethylene terephthalate/polycaprolactam （PET/PA6） bicomponent spnnbond fiber was prepared by using PET and PA 6 chips as raw material. The effects of the single extrusion rate （ Vm ） and drawing air pressure （ P ） of the melt on the diameter, mechanical properties and crystallinity of the obtained fiber were studied. The results showed that the fiber diameter and hollow diameter were gradually decreased with the increase of P at a certain Vm and were increased with the increase of Vm at a certain P ; the breaking strength of the fiber was increased and the elongation at break was decreased with the increase of P at a certain Vm ; and the fiber diameter was decreased from 31.2μm to 19.8μm and the crystallinity was increased from 4.32% to 27.81% when P was increased from 0.10 MPa to 0.35 MPa and Vm was 1.2 g/min.

关 键 词：聚对苯二甲酸乙二醇酯 聚己内酰胺 双组分纤维 纺粘法 中空橘瓣型 生产工艺 

分 类 号：TQ342.85[化学工程—化纤工业]