采用T800级高韧性碳布及碳带预浸料、T800级玻璃纤维预浸料、芳纶与石英混编预浸料制造层压板，探究高温高压多次固化对层压板力学性能的影响。连续经历5次高温高压固化，检测层压板孔隙缺陷、弯曲强度、剪切强度。结果表明：4种不同预浸料层压板的内部质量合格。随着固化次数的增加，T800级高韧性碳布层压板的弯曲强度下降最明显，T800级玻璃纤维预浸料层压板的剪切强度下降最明显。但是4种预浸料层压板的弯曲强度和剪切强度下降幅度均小于10%。芳纶与石英混编预浸料固化5次后的剪切强度最低值比理论指标低1.64%，其余材料的剪切强度均高于各层压板性能要求。

The laminate was manufactured with T800 grade high toughness carbon cloth and carbon ribbon prepreg, T800 grade glass fiber prepreg, aramidon and quartz hybrid prepreg. The influence of high temperature and high pressure multiple curing on the mechanical properties of laminates was investigated. After five times of high temperature and high pressure curing, the laminate pore defects, bending strength and shear strength were tested. The results show that the internal quality of four different prepreg laminates is qualified. With the increase of curing times, the bending strength of T800 grade high toughness carbon cloth laminate decreases most obviously, and the shear strength of T800 grade glass fiber prepreg laminate decreases most obviously. However, the bending strength and shear strength of the four kinds of prepreg laminates decrease by less than 10%. The minimum shear strength of aramid and quartz hybrid prepreg after curing for five times is 1.64% lower than the theoretical index, and the shear strength of other materials is higher than the property requirements of each laminate.