回收型碳纤维/聚丙烯纤维毡的制备及其模压成型复合材料性能研究  

Preparation of recycled carbon fiber/polypropylene fiber felt and study on the properties of molded composite

作　　者：李楠[1] 刘若华[1] 杨阳[1] 高婧蕾 阳玉球 LI Nan;LIU Ruohua;YANG Yang;GAO Jinglei;YANG Yuqiu(College of Textile,Donghua University,Shanghai 201600,China)

机构地区：[1]东华大学纺织学院,上海201600

出　　处：《复合材料科学与工程》2024年第10期110-119,共10页Composites Science and Engineering

摘　　要：以回收碳纤维(Recycle Carbon Fiber,RCF)和聚丙烯(Polypropylene,PP)纤维为原料,通过非织造工艺制备为RCF/PP纤维毡,再通过热压成型将其制备为RCF/PP复合材料,探究非织造工艺参数以及模压成型参数,并对材料性能进行了研究。结果表明:针刺工艺采用15 pin/cm2的针刺密度和10 mm的针刺深度;热黏合工艺采用130~180 N/cm2的压力和160~180℃的温度。针刺固结的复合材料在190℃、6 MPa的条件下热压成型;热黏合固结的复合材料在177~180℃、7 MPa的条件下热压成型。针刺毡CD方向的拉伸性能相较于PD方向性能提高77.8%,热黏合毡CD方向的拉伸性能相较于PD方向性能提高59.3%,RCF/PP复合材料具有一定程度的各向异性。Using recycled carbon fiber(RCF)and polypropylene(PP)as raw materials,RCF/PP felt is prepared through non-woven process,and then prepared into RCF/PP composite materials through hot pressing molding to investigate the non-woven process parameters and mold pressing parameters as well as the material performance.The results demonstrate that:The needling process adopts a needling density of 15 pin/cm2 and a needling depth of 10 mm;the hot bonding process uses a pressure of 130~180 N/cm2 and a temperature of 160~180℃.The composite material consolidated by acupuncture is hot pressed and formed at 190℃and 6 MPa;the composite material that is thermally bonded and consolidated is formed by hot pressing at 177~180℃and 7 MPa.The tensile properties of the CD direction of needle-punched felt are 77.8%higher than those of the PD direction,while thermal bonded felt are 59.3%higher than those of the PD direction.RCF/PP composite materials exhibit a certain degree of anisotropy.

关 键 词：回收型碳纤维 碳纤维毡 模压成型 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]