碳纳米管-纳米ZnO改性环氧复合材料的制备与性能  

Improved Epoxy Composites Using a Hybrid Multi-walled Carbon Nanotubes/nano-ZnO

作　　者：祁蓉[1] 王劲[1] 张立[1] 尚磊[2] 齐暑华[1] 

机构地区：[1]西北工业大学理学院,西安710129 [2]沈阳飞机设计研究所,沈阳110035

出　　处：《材料导报（纳米与新材料专辑）》2016年第1期82-86,共5页

摘　　要：采用混酸对多壁碳纳米管(MWNT)进行羧基化产生-COOH、-OH等反应性基团,通过纳米ZnO与活性基团的共价连接得到MWNT-纳米ZnO复合结构。应用熔融共混法分别制备不同填料的环氧树脂复合材料,并通过FTIR、XRD、SEM、UV-Vis等进行测试表征。结果表明:经酸化处理及纳米ZnO复合后碳纳米管与环氧树脂的结合加强,复合材料的性能提高,其中当填料添加为2%(质量分数)时,羧基化和ZnO-MWNT/EP复合材料的导热率分别达到0.604W/(m·K)、0.636W/(m·K),与环氧树脂自身相比分别提高168%、177%;纳米ZnO赋予复合材料在一定波长范围的紫外吸收性,改善了材料的抗紫外老化性能。The mixed acid modification of multi-wall carbon nanotubes（MWNT）produces-COOH,-OH and other reactive groups,and then obtain a MWNT-nano ZnO composite structure by the covalent connections of nanoZnO and reactive groups.Applications were prepared by melt blending of different fillers epoxy composite.Test characterized by infrared spectroscopy,X-ray diffraction,scanning electron microscopy,infrared camera and so on.The results showed that：after acidification and nano-ZnO combination of carbon nanotubes,the epoxy resin reinforced composites upgrade,wherein when the filler is added as 2wt%,carboxyl and ZnO-MWNT/EP composite thermal conductivity rates were 0.604 W/（m·K）,0.636 W/（m·K）,compared with EP itself increased 168%,177% respectively.Nano-ZnO composite material gives a certain wavelength range of ultraviolet absorbent,improved UV aging properties of materials.

关 键 词：碳纳米管 纳米ZNO 填充 导热性 紫外吸收性 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]