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Effect of maleic anhydride on mechanical propertiesand morphology of poly(lactic acid)/natural rubber blend |
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| รหัสดีโอไอ | |
| Creator | 1. Varaporn Tanrattanakul 2. Ruedee Jaratrotkamjorn 3. Weerawat Juliwanle |
| Title | Effect of maleic anhydride on mechanical propertiesand morphology of poly(lactic acid)/natural rubber blend |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2563 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 3 |
| Page no. | 697-704 |
| Keyword | graft copolymer, maleic anhydride, natural rubber, poly(lactic acid), reactive blend |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Natural rubber grafted with maleic anhydride (NR-g-MA) was synthesized in an internal mixer at different loadings ofMA content. NR-g-MA was used as a rubber modifier of poly(lactic acid) (PLA) and a compatibilizer of PLA/NR blends.Polymer blends were prepared in a twin screw extruder. The grafting reaction of MA was analyzed by 1H-NMR and FTIR. Thepercent of MA grafting was determined by the titration method and FTIR. The impact resistance and tensile properties weretested. NR-g-MA was a better impact modifier than NR. The PLA/NR-g-MA blends had greater impact strength and tensileproperties than neat PLA and a PLA/NR blend. The significant effect of NR-g-MA as a compatibilizer appeared in the highductility of the PLA/NR/NR-g-MA blends. Blend morphology was evaluated by SEM. The presence of MA in the polymerblends reduced the average particle diameter which suggested improved miscibility in the polymer blends. The ?-transitiontemperature of the blends was determined by dynamic mechanical thermal analysis. |
