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http://hdl.handle.net/10397/94135
Title: | Halogen-free flame retarded poly(lactic acid) with an isosorbide-derived polyphosphonate | Authors: | Guo, W Cai, W Wang, D Wang, J Zhu, X Fei, B |
Issue Date: | 2022 | Source: | Journal of renewable materials, 2022, v. 10, no. 7, p. 1875-1888 | Abstract: | Fabrication of flame retardants from renewable biomass has aroused extensive interest over the past decade. This work reported a synthesis of isosorbide-derived polyphosphonate (PICPP) as an anti-flammable agent for poly (lactic acid) (PLA). The presence of PICPP notably declined the storage modulus of PLA/PICPP owing to the declined molecular weight of PLA catalyzed by the presence of PICPP. PLA and PLA/PICPP thermally degraded in one stage under either air or nitrogen atmosphere. With increasing the amount of PICPP, the onset thermal decomposition temperature of PLA/PICPP was decreased gradually, owing to the earlier decomposition of PICPP. With only 10 wt% of PICPP, PLA/PICPP-10 achieved a high limiting oxygen index of 30.0% and UL-94 V-0 clas-sification, manifesting that PICPP was an efficient anti-flammable agent for PLA. The inclusion of 15 wt% PICPP also caused 33% and 16% decline in PHRR and THR of PLA, respectively. TG-IR results clarified that PLA/PICPP produced the less typical pyrolysis products especially flammable carbonyls than PLA, which may account for the suppressed PHRR and THR values of PLA/PICPP. | Keywords: | Flame retardancy Isosorbide Poly(lactic acid) Polyphosphonate |
Publisher: | Tech Science Press | Journal: | Journal of renewable materials | ISSN: | 2164-6325 | EISSN: | 2164-6341 | DOI: | 10.32604/jrm.2022.018823 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The following publication Guo, W., Cai, W., Wang, D., Wang, J., Zhu, X. et al. (2022). Halogen-Free Flame Retarded Poly(Lactic Acid) with an Isosorbide-Derived Polyphosphonate. Journal of Renewable Materials, 10(7), 1875–1888 is available at https://dx.doi.org/10.32604/jrm.2022.018823. |
Appears in Collections: | Journal/Magazine Article |
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