熔喷工艺参数和喷嘴设计参数对纤维直径的影响  

EFFECTS OF PROCESSING PARAMETERS AND DIE DESIGN PARAMETERS ON FIBER DIAMETER IN MELT BLOWING PROCESS

作　　者：陈廷[1] 黄秀宝[1] 

机构地区：[1]东华大学纺织学院,上海200051

出　　处：《化工学报》2003年第9期1334-1337,共4页CIESC Journal

基　　金：国家自然科学基金 (No 5 0 2 760 10 );上海市科委基础研究重点项目 (No 0 2D14 0 19)~~

摘　　要：The air drawing model of polymer in melt blowing process is established by considering the effects of the variation of density and specific heat capacity at constant pressure of polymer melt with polymer temperature. The model is solved by introducing the numerical computation results of air jet flow field of the dual slot die, and model predictions of fiber diameter show good agreement with the experimental data. The effects of the processing parameters and die design parameters on fiber diameter are studied. It is found that lower polymer flow rate, higher initial polymer temperature, higher initial air velocity, smaller angle between the slot and the die axis, smaller width of the die head and larger width of the slot can all yield finer fibers.The air drawing model of polymer in melt blowing process is established by considering the effects of the variation of density and specific heat capacity at constant pressure of polymer melt with polymer temperature. The model is solved by introducing the numerical computation results of air jet flow field of the dual slot die, and model predictions of fiber diameter show good agreement with the experimental data. The effects of the processing parameters and die design parameters on fiber diameter are studied. It is found that lower polymer flow rate, higher initial polymer temperature, higher initial air velocity, smaller angle between the slot and the die axis, smaller width of the die head and larger width of the slot can all yield finer fibers.

关 键 词：非织造布 熔喷 双槽形喷嘴 气流拉伸 数值模拟 

分 类 号：TS174.1[轻工技术与工程—纺织材料与纺织品设计]