摘要
以聚对苯二甲酸乙二醇酯(PET)切片为外层,以自制锦纶导电母粒为芯层,通过对喷丝板的内三叶形微孔结构的优化设计、内外层原料及配比的选择,经复合纺丝制备内三叶形涤纶基复合导电长丝,对导电纤维的截面形态、物理性能及导电性能进行了表征。结果表明:选择喷丝板微孔叶片长度为1.4 mm、顶角为0°,可纺制产品设计要求的内三叶形纤维截面形状;选择PET切片特性黏数为0.65 dL/g、锦纶导电母粒熔体流动指数为每10 min 15 g、锦纶导电母粒质量分数为12%,制备内三叶形涤纶基复合导电长丝可纺性好,纤维截面的内三叶形状清晰,且具有良好的力学性能和导电性能,断裂强度为3.0 cN/dtex,断裂伸长率为63.0%,表面电阻达10^(9)Ω。
Using polyethylene terephthalate(PET)chip as the sheath layer and self-made nylon conductive masterbatch as the core layer,an inner trilobal polyester based composite conductive filament was prepared via composite spinning by optimizing the inner trilobal microporous structure of spinneret and selecting the raw materials and feed ratios of the sheath and core layers.The cross-section morphology,physical properties and conductive properties of the conductive fiber were characterized.The results showed that the fiber with the inner trilobal cross-section shape as product design requirement could be produced by selecting a spinneret with a microporous blade length of 1.4 mm and a top angle of 0°;and the inner trilobal polyester based composite conductive filament had good spinnability,clear inner trilobal cross-section shape,good mechanical and conductive properties,including breaking strength of 3.0 cN/dtex,elongation at break of 63.0%and surface resistance of 10^(9)Ω,when PET chip with an intrinsic viscosity of 0.65 dL/g and nylon conductive masterbatch with a melt flow index of 15 g per 10 min at a mass fraction of 12%were selected.
作者
焦红娟
李睿
武术方
李红彬
郑晓頔
JIAO Hongjuan;LI Rui;WU Shufang;LI Hongbin;ZHENG Xiaodi(State Key Laboratory of Bio-based Fiber Manufacturing Technology,China Textile Academy,Beijing 100025)
出处
《合成纤维工业》
CAS
2023年第6期25-29,共5页
China Synthetic Fiber Industry
关键词
聚对苯二甲酸乙二酯纤维
导电纤维
导电母粒
内三叶形
结构设计
polyethylene terephthalate fiber
conductive fiber
conductive masterbatch
inner trilobal
structural design
