【摘要】 碳纤维增强树脂基复合材料层合板应用广泛，其薄弱的层间性能极易引起分层损伤。为提高层合板的层间抗剪能力，本文制备了未功能化碳钠米管（CNT）和氨基功能化碳纳米管（NH₂-CNT）薄膜，研究了其对层合板Ⅱ型临界应变能释放率(G_ⅡC)和层间剪切强度（ILSS）的影响。结果表明，与空白层合板相比，当薄膜厚度为31.1μm时，CNT薄膜使G_ⅡC和ILSS分别降低了19.2%和6.59%,而NH₂-CNT薄膜可以使G_ⅡC和ILSS分别提高51.7%和15.4%。NH₂-CNT与环氧形成的良好界面，是NH₂-CNT薄膜使层合板层间剪切性能提升的主要原因。更多还原

【Abstract】 Carbon fiber reinforced plastics are widely used, and their weak interlaminar performance can easily cause delamination damage. In order to improve the interlaminar shear resistance of the laminates, un-functionalized（CNT） and amino-functionalized carbon nanotube（NH₂-CNT） films were prepared in this paper, and their effects on the mode Ⅱ critical strain energy release rate(G_ⅡC) and interlaminar shear strength（ILSS） of laminates were investigated. The results show that when the thickness of the interleaves were 31.1 μm, compared with the blank laminate, the CNT interleaf would reduce the G_ⅡC and ILSS by 19.2% and 6.59%, respectively, while the NH₂-CNT interleaf could improve the G_ⅡC and ILSS by 51.7% and 15.4%, respectively. It is found that the good interfacial bonding between NH₂-CNT and epoxy resin contributes the improvement of interlaminar shear properties of the laminates.更多还原