温度对CF/VE复合材料等温固化过程及其性能的影响  

EFFECT OF TEMPERATURE ON CURING PROCESS AND PROPERTIES OF CF/VE COMPOSITES

作　　者：薛忠民[1] 石海洋[2] 李鹏[2] 杨小平[2] 

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100083 [2]北京化工大学国家碳纤维工程技术研究中心,北京100029

出　　处：《玻璃钢／复合材料》2006年第1期34-37,41,共5页Fiber Reinforced Plastics/Composites

基　　金：973项目(2003CB615602);863项目(2004AA33G140)

摘　　要：用DMTA和DSC扫描了碳纤维/乙烯基酯树脂复合材料在不同温度下的等温固化过程,然后再次用DSC扫描其后固化过程,用DMTA温度谱扫描其后固化前后的样条;制备碳纤维/乙烯基酯树脂复合材料浇注体,测试其力学性能。结果表明,等温固化温度低时固化过程中有相分离现象,后固化能使90℃下等温固化复合材料的层间剪切强度提高55.64%,而对120℃下等温固化复合材料的层间剪切强度作用不大。The isothermal curing of carbon fiber/vinyl ester （CF/VE） composites is scanned by Dynamic Mechanical Thermal Analyzer （DMTA） and Differential Scanning Calorimeter （DSC） at different temperature and then, the post curing is rescanned by DSC and composites are scanned by DMTA after isothermally curing with and without post cure. Composite samples are made and LISS conducted. The results show that microheterogeneity will occur when the isothermal curing temperature is low and post cure can improve LISS of isothermal cured composites by 55.64% when the isothermal curing temperature is 90℃. However, the post cure doesnt work if the isothermal curing temperature is 120℃.

关 键 词：乙烯基酯树脂 碳纤维 复合材料 固化 DMTA DSC 

分 类 号：TQ327.3[化学工程—合成树脂塑料工业]