Vu Pham Gia, Truc Trinh Anh, Chinh Nguyen Thuy, Tham Do Quang, Trung Tran Huu, Oanh Vu Ke, Hang To Thi Xuan, Olivier Marjorie, Hoang Thai
Institute for Tropical Technology, VAST, 18, Hoang Quoc Viet, Hanoi, 100000, Vietnam.
Materials Science Department, University of Mons, Place du Parc 23, 7000 Mons, Belgium.
J Nanosci Nanotechnol. 2018 Apr 1;18(4):2830-2837. doi: 10.1166/jnn.2018.14297.
In this study, carbon nanotubes (CNTs)/ZnO composites had been prepared using the sol-gel method and then incorporated into an epoxy resin for reinforcement of mechanical and electrical properties. Fourier Transform Infrared (FTIR), X-ray diffraction (XRD) Field Emission Scanning Electron Microscope (FE-SEM) analyses show that the ZnO nanoparticles deposited on CNTs were crystallized in a hexagonal wurtzite structure. Average particle size of ZnO deposited on the CNT was about 8 nm. The mechanical and dielectric properties of epoxy containing CNTs/ZnO were investigated in comparison to epoxy resin and epoxy resin containing only CNT or ZnO nanoparticles. The results indicated that tensile strength and elongation at break of the nanocomposite were substantially improved with the presence of CNTs/ZnO at the equal volume. The DSC analysis associate with the dielectric results shows that the behavior of epoxy/CNTs/ZnO is identical to epoxy/ZnO composite, and the CNTs is essential to the distributed arrangement of ZnO in the epoxy resin.
在本研究中，采用溶胶-凝胶法制备了碳纳米管（CNTs）/ZnO复合材料，然后将其加入环氧树脂中以增强机械性能和电性能。傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）和场发射扫描电子显微镜（FE-SEM）分析表明，沉积在碳纳米管上的ZnO纳米颗粒结晶为六方纤锌矿结构。沉积在碳纳米管上的ZnO的平均粒径约为8nm。与环氧树脂以及仅含有碳纳米管或ZnO纳米颗粒的环氧树脂相比，研究了含CNTs/ZnO的环氧树脂的机械性能和介电性能。结果表明，在等体积存在CNTs/ZnO的情况下，纳米复合材料的拉伸强度和断裂伸长率得到了显著提高。与介电结果相关的DSC分析表明，环氧树脂/CNTs/ZnO的行为与环氧树脂/ZnO复合材料相同，并且碳纳米管对于ZnO在环氧树脂中的分布排列至关重要。
