自动铺放过程双马树脂预浸料温度与黏度  

Temperature and viscosity of bismaleimide resin prepregs in automated tape laying process

作　　者：黄志军[1] 王显峰[1] 戴振东[2] 肖军[1] 

机构地区：[1]南京航空航天大学材料科学技术学院,南京210016 [2]南京航空航天大学高新技术研究院,南京210016

出　　处：《复合材料学报》2012年第3期49-53,共5页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(50905088);国家科技重大专项(2010ZX04016-013)

摘　　要：通过对自动铺放成型工艺的分析,探索了自动铺带成型过程中预浸料温度对复合材料黏性的影响规律。对影响预浸料温度的热风温度和铺放速度两个因素进行了研究,从理论上建立了热风加热温度和铺放速度与预浸料温度之间的关系,提出了控制预浸料温度的具体实施方案,指导自动铺带成型过程。根据双马树脂预浸料黏度和温度曲线,分别在不同的热风温度和铺放速度条件下进行实验,得到在热风温度为90℃、铺放速度为10～20m/min时,预浸料黏度满足铺覆性要求,验证了预浸料热风温度和铺放速度对复合材料制品质量的影响,为自动铺带工艺提供参考。By the analysis of automated tape laying （ATL） process, the viscosity- temperature relationship of the composite prepregs was investigated. By the research on hot-air temperature and placement rate, which are two main factors on the prepregs temperature, the theoretic relationship between hot-air temperature and placement rate was examined, and then the controlling method of prepregs temperature was proposed to guide the ATL manufacturing. Finally, according to the viscosity- temperature curve of the bismaleimide resin prepregs, the experiments were conducted under different hot-air temperatures and placement rates. The results show that the viscosity of the prepregs agrees with the processing demand when the hot-air temperature is set at 90 ℃ and the placement rate is about 10 - 20 m/min. The research work indicates the influence on the composites structure, caused by prepregs hot-air temperature and placement rate, which will be helpful for the ATL process.

关 键 词：复合材料 自动铺带 预浸料 温度 黏性 

分 类 号：TB332[一般工业技术—材料科学与工程]