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Efficient polymeric phosphorus flame retardant: flame retardancy, thermal property, and physical property on polylactide

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Abstract

A novel polymeric flame retardant, PBPP2, for polylactide (PLA) was synthesized via a two-step polymerization process. The flame retardancy of neat PLA and flame-retarded PLA films prepared via solution casting method with different PBPP2 ratios was then investigated. When only the 3 wt% PBPP2 was added to PLA, the limiting oxygen index was increased from 23 to 30%. Additionally, the required V-0 rating was achieved compared to neat PLA. It was also found that PBPP2 increases the maximum thermal decomposition temperature of PLA, indicating that 3 wt% of PBPP2 is sufficient to improve flame retardancy and thermal stability on PLA, simultaneously. From both the decrease in Tm and the increase in elongation for PLA with the 3 wt% addition of PBPP2, PBPP2 could be considered to also function as a plasticizer on PLA.

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Acknowledgements

This work was supported by Kyonggi University Research Grant 2016.

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Authors and Affiliations

  1. Department of Chemical Engineering, Kyonggi University, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon, 16227, Republic of Korea

    Min-Ji Sim & Sang-Ho Cha

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  1. Min-Ji Sim
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Correspondence to Sang-Ho Cha.

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Sim, MJ., Cha, SH. Efficient polymeric phosphorus flame retardant: flame retardancy, thermal property, and physical property on polylactide. Polym. Bull. 76, 3463–3479 (2019). https://doi.org/10.1007/s00289-018-2558-9

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  • DOI: https://doi.org/10.1007/s00289-018-2558-9

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