热压工艺参数对TA2/CF/PEEK层板弯曲性能的影响  

Influence of hot pressing process parameters on bending properties of TA2/CF/PEEK laminates

作　　者：袁丁 矫志辉 李勇[1] YUAN Ding;JIAO Zhi-hui;LI Yong(School of Mechanical Engineering&Automation,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《塑性工程学报》2024年第7期63-70,共8页Journal of Plasticity Engineering

基　　金：中央高校基本科研业务费专项资金资助项目(YWF-23-L-1012)。

摘　　要：以TA2箔、碳纤维和PEEK材料体系为基础,探索钛箔-碳纤维布-PEEK薄片直接复合的热压法制备工艺。在对初始材料进行超声清洗除油、砂纸打磨等预处理后,手工铺层并放入自行设计的热压模具,基于不同温度(370和390℃)、压力(0.8、1.6和2.5 MPa)与保压时间(20和40 min)的热压法制备了TA2/CF/PEEK层板。利用三点弯曲实验方法探究了热压工艺参数对层板弯曲性能的影响。结果表明,较佳的热压工艺为:成形温度390℃、热压压力1.6 MPa、保压时间40 min且每侧铺设两片树脂薄膜。在此工艺下制备的TA2/CF/PEEK层板弯曲强度为681.68 MPa,弯曲模量为69.5 GPa。Based on the material systems of TA2 foil,carbon fiber and PEEK,the preparation process of titanium foil-carbon fiber cloth-PEEK sheet directly composited by hot pressing method was investigated.After pre-treatment of ultrasonic cleaning degreasing and sandpaper polishing for the initial materials,the layers were manually laid and put into self-designed hot pressing moulds,and the TA2/CF/PEEK laminates were prepared by hot pressing method based on different temperatures(370 and 390℃),pressures(0.8,1.6 and 2.5 MPa)and holding time(20 and 40 min).The influence of hot pressing process parameters on the bending properties of laminates was investigated using the three-point bending experiment method.The results show that the better hot pressing process is:deformation temperature of 390℃,hot pressing pressure of 1.6 MPa,holding time of 40 min and laying two resin films on each side.The TA2/CF/PEEK laminates prepared under this process have bending strength of 681.68 MPa and bending modulus of 69.5 GPa.

关 键 词：纤维金属层板 钛合金 热塑性复合材料 弯曲性能 热压工艺 

分 类 号：TB333[一般工业技术—材料科学与工程]