Influence of GMA grafted MWNTs on physical and rheological properties of PMMA-based nanocomposites by in situ polymerization
| Autor: | Soo-Jin Park, Ki-Seok Kim, Joon-Hyung Byun, Gyu-Hwan Lee |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Glycidyl methacrylate
Materials science Nanocomposite Polymers and Plastics General Chemical Engineering Organic Chemistry Nanochemistry Carbon nanotube Polymer engineering law.invention chemistry.chemical_compound chemistry law Ultimate tensile strength Materials Chemistry In situ polymerization Methyl methacrylate Composite material |
| Zdroj: | Macromolecular Research. 19:14-20 |
| ISSN: | 2092-7673 1598-5032 |
| DOI: | 10.1007/s13233-011-0101-z |
| Popis: | In this study, multi-walled carbon nanotubes (MWNTs) reinforced poly (methyl methacrylate) (PMMA) nanocomposites were prepared by in situ polymerization. Glycidyl methacrylate (GMA) grafted MWNTs (GMA-MWNTs) were used to improve the compatibility between the MWNTs and the PMMA matrix. The physical and rheological properties of the PMMA nanocomposites with different GMA-MWNT contents were examined. The GMA-MWNTs were embedded homogeneously into the PMMA matrix by in situ polymerization. A uniform dispersion of GMA-MWNTs produced nanocomposites with enhanced physical properties. The maximum tensile strength was observed with the 2.0 wt% GMA-MWNT loading, and was 41% higher than that of pure PMMA. In addition, the viscosity of the nanocomposites was increased gradually by the addition of GMA-MWNTs. The storage (G′) and loss modulus (G″) were increased significantly by increasing the GMA-MWNT content, which was attributed to the strong interaction between highly dispersed GMA-MWNTs and PMMA matrix. |
| Databáze: | OpenAIRE |
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