Zewen Zhu , Hengxi Chen , Qihui Chen , Cong Liu , Kwanghae Noh , Haiqing Yao , Masaya Kotaki , Hung-Jue Sue
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Fracture behavior of hybrid epoxy nanocomposites based on multi-walled carbon nanotube and core-shell rubber
The dispersion of nanoparticles plays a key role in enhancing the mechanical performance of polymer nanocomposites. In this work, one hybrid epoxy nanocomposite reinforced by a well dispersed, zinc oxide functionalized, multi-wall carbon nanotube (ZnO-MWCNT) and core-shell rubber (CSR) was prepared, which possesses both high modulus and fracture toughness while maintaining relatively high glass transition temperature (Tg). The improved fracture toughness from 0.82 MPa m1/2 for neat epoxy to 1.46 MPa m1/2 for the ternary epoxy nanocomposites is resulted from a series of synergistic toughening mechanisms, including cavitation of CSR-induced matrix shear banding, along with the fracture of MWCNTs and crack deflection. The implication of the present study for the preparation of high-performance polymer nanocomposites is discussed.
期刊介绍：
Nano Materials Science (NMS) is an international and interdisciplinary, open access, scholarly journal. NMS publishes peer-reviewed original articles and reviews on nanoscale material science and nanometer devices, with topics encompassing preparation and processing; high-throughput characterization; material performance evaluation and application of material characteristics such as the microstructure and properties of one-dimensional, two-dimensional, and three-dimensional nanostructured and nanofunctional materials; design, preparation, and processing techniques; and performance evaluation technology and nanometer device applications.
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