Effects of Poly(Methyl Methacrylate)-Encapsulated Nanosilica on Mechanical Properties of Poly(Lactic Acid)/Ethylene Vinyl Acetate Nanocomposites
| Autor: | Jasmine Pongkasem, Saowaroj Chuayjuljit, Amnouy Larpkasemsuk, Anyaporn Boonmahitthisud, Phasawat Chaiwutthinan |
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| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
Materials science Mechanical Engineering Ethylene-vinyl acetate 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Poly(methyl methacrylate) 0104 chemical sciences Lactic acid chemistry.chemical_compound chemistry Mechanics of Materials visual_art visual_art.visual_art_medium General Materials Science 0210 nano-technology Nuclear chemistry |
| Zdroj: | Key Engineering Materials. 773:51-55 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.773.51 |
| Popis: | In this study, poly(lactic acid) (PLA) was melt mixed with three weight percentages (10–30wt%) of ethylene vinyl acetate copolymer (EVA) in an internal mixer, followed by a compression molding. According to a better combination of mechanical properties, the 90/10 (w/w) PLA/EVA was selected for preparing hybrid nanocomposites with three loadings (1, 3 and 5 parts per hundred of resin , phr) of poly(methyl methacrylate)-encapsulated nanosilica (PMMA-nSiO2). The nanolatex of PMMA-nSiO2 was synthesized via in situ differential microemulsion polymerization. The obtained PMMA-nSiO2 showed a core-shell morphology with nSiO2 as a core and PMMA as a shell, having an average diameter of 43.4nm. The influences of the EVA and PMMA-nSiO2 on the impact strength and the tensile properties of the PLA/EVA nanocomposites were studied and compared. It is found that the impact strength and the tensile properties of the 90/10 (w/w) PLA/EVA were improved with the appropriate amounts of the EVA and PMMA-nSiO2. |
| Databáze: | OpenAIRE |
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