Poly(L-lactic acid)/deproteinized natural rubber blends with enhanced compatibility
| Autor: | I Putu Mahendra, Nguyen Thi Hong Phuong, Nur Fazreen Alias, Tring Thi Hang, Hanafi Ismail, Phan Trung Nghia |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Poly l lactic acid
Materials science Polymers and Plastics Scanning electron microscope General Chemical Engineering Maleic anhydride Grafting chemistry.chemical_compound Natural rubber chemistry Phase shifted visual_art Compatibility (mechanics) Materials Chemistry visual_art.visual_art_medium Thermal analysis Nuclear chemistry |
| Zdroj: | Polimery. 66:105-111 |
| ISSN: | 0032-2725 |
| DOI: | 10.14314/polimery.2021.2.3 |
| Popis: | PLLA-g-LMWNR (LMWNR – low molecular weight natural rubber) was used as a compatibilizer (1–3 wt %) of poly(L-lactic acid)/deproteinized natural rubber (PLLA/DPNR) blend (95/5 w/w). The LMWNR was prepared using TiO2/ZnO (9 : 1 w/w) and H2O2 as co-catalyst. The obtained LMWNR was grafted with 0–12 wt % maleic anhydride (LMWNR-g-MA) and then with PLLA (PLLA-g-LMWNR). A significant improvement in the mechanical properties of the PLLA/DPNR blend was found in the blend that contained 3 wt % PLLA-g-LMWNR. Scanning electron microscopy showed a decrease in the pore diameter from 5.44 to 1.56 μm. The thermal analysis of PLLA/DPNR blends showed that the Tg value of PLLA phase shifted from 63.1 to 61.4°C. These results confirmed that PLLA-g-LMWNR can enhance the compatibility of the PLLA/DPNR blend. |
| Databáze: | OpenAIRE |
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