高压静电场对玻璃纤维增强聚丙烯复合材料预浸料浸渍和断裂的影响  

Effect of high-voltage electrostatic field on impregnation and fiber fracture of continuous glass fiber reinforced polypropylene

作　　者：任峰[1] 谢兴阳 曹敏华[1] 李莹[1] 信春玲[1] 何亚东[1,3] REN Feng;XIE Xingyang;CAO Minhua;LI Ying;XIN Chunling;HE Yadong(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China;Polymer Processing Equipment Engineering Research Center,Ministry of Education,Beijing 100029,China;Taizhou Entry-Exit Inspection ＆ Quarantine Berau,Taizhou 317300,China)

机构地区：[1]北京化工大学机电工程学院,北京100029 [2]台州检验检疫局,台州317300 [3]教育部高分子材料加工装备工程研究中心,北京100029

出　　处：《复合材料学报》2018年第8期2046-2054,共9页Acta Materiae Compositae Sinica

基　　金：国家重点研发计划"合成树脂高效制备关键技术"子项目(2016YFB0302005)

摘　　要：采用熔融浸渍工艺生产连续纤维增强热塑性树脂基复合材料,纤维预分散至关重要。结合现有机械分散装置,根据纤维束在高压静电场受静电场力的原理,设计并引入高压静电场分丝装置,对纤维束进行二次分散。结果显示,经过高压静电场分丝,促进了纤维束分散和纤维单丝之间的均匀性,改善了连续玻璃纤维增强聚丙烯(GF/PP)复合材料预浸料纤维和聚合物表面结合,降低了纤维分丝过程中的磨损和断裂,使通过此法制得的GF/PP复合材料预浸料的力学性能得到显著提升。实验表明,当静电场上下极板之间距离为20cm、高压静电场电压30kV时,GF/PP复合材料预浸料力学性能最优。The fiber pre-spreading is of great importance when the continuous fiber reinforced thermoplastic resin based composites are produced by the melt impregnation process.Based on existing mechanical dispersion device and the principle of the electrostatic field force,a high voltage electrostatic field spreading device for secondary dispersion was designed.The influence of electrostatic field voltage on the pre-spreading of fiber bundle was also investigated.The results show that,under a high voltage electrostatic field,the uniformity between the fiber bundle dispersion and the fiber monofilaments is promoted,and the mechanical properties of GF/PP are improved as well.Meanwhile,the surface and interface between fiber and polymer are improved,and the fracture of fiber bundle is reduced.The experimental results show that the mechanical properties of GF/PP prepreg are optimal when the distance between the top and bottom plates is 20 cm and the voltage of static field is 30 kV.

关 键 词：熔融浸渍 高压静电场 纤维断裂 热塑性复合材料 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]