碳纳米管对碳纤维复合材料防辐射性能的影响  

Influence of Carbon Nanotube Matrix/interface Modification on the Radiation Resistance of Carbon Fiber/epoxy Resin Composites

作　　者：刘义 李树锋[1] 张策 闫民杰 孙颖颖 Liu Yi;Li Shufeng;Zhang Ce;Yan Minjie;Sun Yingying(School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学纺织科学与工程学院,天津300387

出　　处：《天津纺织科技》2021年第4期40-43,共4页Tianjin Textile Science & Technology

基　　金：天津市研究生科研创新项目(2019YJSB198)。

摘　　要：为探究碳纤维增强环氧树脂复合材料(CF/EP)中添加碳纳米管(CNTs)对复合材料防γ辐射性能的影响,文中采用y射线辐照后的无碳纳米管的γ-CFEP复合材料,基体中含CNTs的γ-CFEP复合材料(γ-CF/EP-CNTs),界面区中有CNTs的γ-CFEP复合材料(γ-CF-CNTs/EP)和基体界面含有CNTs的γ-CF/EP复合材料(γ-CF-CNTs/EP-CNTs)。结果表明,与γ-CFEP相比,CNTs改性后的γ-CFEP的弯曲性能,耐疲劳性能和热稳定性都有所提高,其中γ-CF-CNTs/EP-CNTs的提升最明显,是由于CNTs可以清除辐射产生的自由基,减少自由基对分子链的破坏,且CNTs可以与EP、CF,固化剂等反应,增强复合材料的界面性能和分子交联程度。该研究为未来碳纳米管对碳纤维复合材料的防辐射性能提供一定参考。In order to explore the effect of adding carbon nanotubes(CNTs)to carbon fiber reinforced epoxyresin composites(CF/EP)on the anti-gamma radiation performance of the composites.The γ-CF/EP composite with-out carbon nanotubes,the composite containing CNTs in the matrix(γ-CFEP-CNTs),CNTsin the interface zone(γ-CF-CNTs/EP),and CNTs in the interface and matrix(γ-CF-CNT/EP-CNTs)are studied.The results showthat,compared with γ-CF/EP,γ-CFEP-CNTs,γ-CF-CNTs/EP,γ-CF-CNTs/EP-CNTs have bending performance,fatigue resistance and thermal stability.Among them,the improvement of γ-CF-CNT/EP-CNTs is the most obvious.The reason is that CNTs can scavenge free radicals generated by radiation and reduce the damage of free radicalsto molecular chains,and CNTs can react with EP,CF,curing agents,etc.To enhance the interface performanceand molecular crosslinking degree of composite.

关 键 词：CF/EP复合材料 碳纳米管 防辐射性 界面改性 基体改性 

分 类 号：TB332[一般工业技术—材料科学与工程]