复合材料科学与工程Issue(4)：74-81,8.DOI:10.19936/j.cnki.2096-8000.20250428.009
纳米ZnO树脂薄膜提升CFRP层合板层间断裂性能研究
Research on improving the interlayer fracture performance of CFRP laminates with nano ZnO resin films
摘要
Abstract
Carbon fiber reinforced plastics(CFRP)laminates are prone to damage and instability when subjec-ted to out of plane loads due to their significantly lower normal stiffness compared to in-plane stiffness.In order to toughen the thickness direction,the effect of modified nano ZnO toughened films on the mechanical properties of CFRP laminates was studied.Nano-ZnO is first modified by coupling agent to obtain modified nano-ZnO,which was added into epoxy resin as nano-filler.By blending modified nano-ZnO particles at different mass ratios from 0 to 4wt%in the presence of a curing agent,some cohesive films with different interlaminar properties were formed between the two interfacial surfaces in a composite specimen,which have been applied in end-notched flexure(ENF)tests and double cantilever beam(DCB)tests.A series of finite element(FE)models,together with the predetermined model parameters,were built to assess the influence of modified nano-ZnO and curing agent.The re-sults show that,for the toughened beam(with 4wt%modified nano-ZnO and 2wt%GEL2-BS),the critical loads of ENF tests and DCB tests increases by 30.25%and 68.40%,respectively.关键词
黏结膜/改性纳米ZnO颗粒/界面增韧/端部缺口弯曲试验/双悬臂梁试验Key words
cohesive film/modified nano-ZnO particles/interface toughening/end-notched flexure(ENF)tests/double cantilever beam(DCB)tests分类
通用工业技术引用本文复制引用
杜徐玮,牛雪娟..纳米ZnO树脂薄膜提升CFRP层合板层间断裂性能研究[J].复合材料科学与工程,2025,(4):74-81,8.基金项目
仿生多相共固微构型CFRP的可控合成及热压固化特性研究(23JCZDJC00450) （23JCZDJC00450）
