环氧树脂
纳米复合材料
材料科学
纳米颗粒
傅里叶变换红外光谱
复合材料
玻璃化转变
极限抗拉强度
氧化物
聚合物
化学工程
纳米技术
工程类
冶金
作者
Chaobo Liang,Ping Song,Hongbo Gu,Chao Ma,Yue Guo,Hongyuan Zhang,Xiaojiang Xu,Qiuyu Zhang,Junwei Gu
标识
DOI:10.1016/j.compositesa.2017.07.030
摘要
Fluorescent epoxy nanocomposites reinforced with polydopamine (PDA) functionalized zinc oxide (ZnO) nanoparticles have been obtained. Results reveal that the PDA functionalized ZnO nanoparticles are dispersed uniformly in the epoxy nanocomposites. The enhanced tensile strength of the epoxy nanocomposites filled with PDA functionalized ZnO nanoparticles (up to 106.7 MPa) is obtained compared with that of pure epoxy (83.8 MPa) and epoxy nanocomposites filled with the same loading pristine ZnO nanoparticles (around 91.5 MPa). The glass transition temperature (Tg) of the epoxy nanocomposites filled with PDA functionalized ZnO nanoparticles has shifted to a higher temperature (127.0–132.0 °C) compared with that of pure epoxy (118.3 °C). The interaction between PDA and epoxy matrix is also explored by Fourier transform infrared (FTIR) and contact angle. The introduction of PDA can enhance the mechanical and thermal properties of epoxy nanocomposites without damaging the fluorescent property of ZnO nanoparticles.
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