Enhanced Interfacial Adhesion by Reactive Carbon Nanotubes: New Route to High-Performance Immiscible Polymer Blend Nanocomposites with Simultaneously Enhanced Toughness, Tensile Strength, and Electrical Conductivity
| Autor: | Zhiang Fu, Hengti Wang, Xuewen Zhao, Yongjin Li |
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| Rok vydání: | 2018 |
| Předmět: |
Toughness
Nanocomposite Materials science 02 engineering and technology Carbon nanotube Compatibilization 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound Chemical engineering chemistry law Ultimate tensile strength General Materials Science Polymer blend Methyl methacrylate 0210 nano-technology Ductility |
| Zdroj: | ACS Applied Materials & Interfaces. 10:8411-8416 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.8b01704 |
| Popis: | Physically anchoring carbon nanotubes (CNTs) onto the interface of immiscible polymer blends has been extensively reported; however, enhancement of physical properties of the blends has seldom been achieved. Herein, we used CNTs with reactive epoxide groups and long poly(methyl methacrylate) (PMMA) tails as a thermodynamic compatibilizer for immiscible poly vinylidene fluoride/poly l-lactide (PVDF/PLLA) blends. The CNTs acted as an efficient compatibilizer and bridged the two phases through physical entanglement and chemical reaction. The sea-island structure of the blend transformed into a bicontinuous structure for CNT contents greater than 3 wt %. The mechanical properties, including ductility and tensile strength, thermal properties, and electrical conductivities were all enhanced by the CNTs compatibilizer. This strategy thermodynamically compatibilized by reactive nanofillers paves the way for advanced blend nanocomposites. |
| Databáze: | OpenAIRE |
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