Experimental determination of mechanical properties of PMMA reinforced with functionalized CNTs
| Autor: | Amit Shlayer, Leslie Banks-Sills, David Guy Shiber, Rami Eliasi, Victor Fourman |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Mechanical Engineering Composite number 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Grafting 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Matrix (chemical analysis) chemistry.chemical_compound chemistry Mechanics of Materials Phase (matter) Ultimate tensile strength Ceramics and Composites Surface modification Methyl methacrylate Composite material 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | Composites Part B: Engineering. 95:335-345 |
| ISSN: | 1359-8368 |
| Popis: | The main challenges in successfully using CNTs as a reinforcement phase in a composite are homogenous dispersion and distribution of the CNTs in the matrix, as well as improving the interfacial bond between them. Functionalization of CNTs has proved an effective method for overcoming these challenges. The goal of this study is to determine the mechanical properties of a composite material using experimental methods. The composite consists of a poly(methyl methacrylate), or PMMA, matrix enhanced by different weight fractions (wt%) of nanotubes functionalized by two methods. Carboxylated CNTs were further functionalized by the grafting from (GF) and the grafting to (GT) methods. The effect of these functionalization methods on the CNTs is evaluated through measurement of effective mechanical properties of a composite containing them, as well as, through a comparison to a previous investigation, in which non-functionalized (NF) CNTs were employed. Tensile tests were carried out on neat PMMA and PMMA containing functionalized CNTS; there were two GF batches containing 0.8 wt% and 1.5 wt% of CNTs; and three GT batches containing 1.5 wt%, 3 wt% and 6 wt% of CNTs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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