Effect of curing pressure on bonding properties of PMI foam/carbon fiber sandwich structures

摘要：

　　Polymethacrylimide (PMI) foam/carbon fiber sandwich structures were cured at 177 with different pressures in an autoclave.The thermal stability,compression and creep deformation under 0.2 and 0.3 MPa pressuresand other properties of different PMI foams were measured.The effect of manufacturing pressure on dimension stability of the PMI foams was also studied via measuring the deformations of PMI core materials with different thicknesses in the autoclave.The tensile strength,shear strength,bending strength and roller peeling strength of PMI foam/carbon fiber sandwich structures manufactured under 0.2 and 0.3 MPa pressures were tested respectively.According to the research work,the Tgs of PMI foams are both above 190 ,and exhibit good thermal stability.PMI foams with higher density possess higher dimension stability.And when higher curing pressure applied,the sandwich composites exhibit higher bonding quality

关键词： polymethacrylimide foam carbon fiber sandwich structure creep deformation pressure mechanical properties

作者: Yang Yang Liu Weiping

作者单位: Manufacturing Center of Composite Materials Shanghai Aircraft Manufacturing CO.,Ltd Shanghai,China

会议类型: 国内会议

会议名称: 第一届中国国际复合材料科技大会

会议地点: 北京

会议语种:英文

页码: 848-854

在线出版日期: 2013-09-10（万方平台首次上网日期，不代表论文的发表时间）