一种新型高分子硬质泡沫  

A NEW TYPE OF POLYMER RIGID FOAM

作　　者：周典 张超[1] 张睿 朱烨 李旭 熊健[4] 王继辉[3] ZHOU Dian;ZHANG Chao;ZHANG Rui;ZHU Ye(Department of Aeronautical Structure Engineering,School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China;NMG Composites Co.,Ltd.,Jiaxing 314511,China)

机构地区：[1]西北工业大学航空学院,西安710072 [2]浙江联洋新材料股份有限公司,嘉兴314511 [3]武汉理工大学材料科学与工程学院,武汉430070 [4]哈尔滨工业大学航天学院复合材料与结构研究所,哈尔滨150080

出　　处：《复合材料科学与工程》2020年第11期71-75,共5页Composites Science and Engineering

摘　　要：本文对一种具有互穿聚合物网络的新型硬质泡沫Atlas HPE进行了准静态拉伸、压缩、剪切、疲劳、吸胶和尺寸稳定性测试,并与现有常规的PVC、PET泡沫进行较为全面的对比研究。结果表明,Atlas HPE泡沫具有突出的抗疲劳性能,由其制成的夹芯结构可以在最大动态载荷为静态剪切强度50%的情况下,承受200万次的循环加载。Atlas HPE单位面积的吸胶量仅为1.287 kg,120℃高温处理后的体积变化率仅为0.81%,其吸胶特性和尺寸稳定性均优于PVC和PET泡沫,是一种性能优异的泡沫芯材,因此可适用于各种夹芯复合材料承力结构件中。This present paper documents a study on a new type of interpenetrating polymer network rigid foam Atlas HPE.A series of tests were performed on the new type of foam,which includes quasi-static mechanical tests,fatigue test,resin absorption test and dimension stability test.We further conduct a comparative study for Atlas HPE with the existing conventional PVC and PET foams.The results show that Atlas HPE foam has excellent fatigue resistance,and the sandwich structure made of it can withstand 2 million cycles of loading under the condition that the maximum dynamic load is 50%of the static shear strength.Besides,resin absorption per square meter of Atlas HPE is 1.287 kg,and the volume change rate after 120℃high-temperature treatment is only 0.81%.Its resin absorption performance and dimension stability are both better than PVC and PET foams,revealing that the foam is of great physical performance.Therefore,the core material made of Atlas HPE can be applied to various load-bearing sandwich composite structures.

关 键 词：硬质闭孔泡沫 剪切疲劳 吸胶性能 尺寸稳定性 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]