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Article Dans Une Revue Journal of Materials Science Année : 2017

The fire performance of polylactic acid containing a novel intumescent flame retardant and intercalated layered double hydroxides

Xiaodong Jin
  • Fonction : Auteur
Xiaoyu Gu
  • Fonction : Auteur
Chen Chen
  • Fonction : Auteur
Wufei Tang
  • Fonction : Auteur
Hongfei Li
  • Fonction : Auteur
Xiaodong Liu
  • Fonction : Auteur
Zongwen Zhang
  • Fonction : Auteur
Jun Sun
  • Fonction : Auteur
Sheng Zhang
  • Fonction : Auteur

Résumé

In this work, a novel single macromolecular intumescent flame retardant (DT-M) was prepared by self-assembly of diethylenetriamine penta-(methylenephosphonic) acid with melamine, and modified layered double hydroxides (LDH) were also prepared by intercalating phytic acid into LDHs. The chemical structures of DT-M and phytic acid intercalated LDHs (PA–LDH) were fully characterized by different analytical instruments, and then were introduced into PLA by melt compounding to prepare a flame retardant biodegradable PLA composite. The fire performance evaluation of PLA composites by limiting oxygen index (LOI), vertical burning (UL-94) and cone calorimeter tests indicated that the introduction of 14% DT-M and 1% PA–LDH increased the LOI value from 19.4 to 38.9%, upgraded the UL-94 rating from no rating to V-0, and decreased the peak heat release rate from 812 to 301 kW m−2. The analysis for decomposition products of PLA composite and the observation of morphology of the char suggested that DT-M and PA–LDH took effects in both condensed phase through promoting char formation and gas phase through releasing inert gases.
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Dates et versions

hal-04632193 , version 1 (02-07-2024)

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Citer

Xiaodong Jin, Xiaoyu Gu, Chen Chen, Wufei Tang, Hongfei Li, et al.. The fire performance of polylactic acid containing a novel intumescent flame retardant and intercalated layered double hydroxides. Journal of Materials Science, 2017, Journal of Materials Science, 52, pp.12235-12250. ⟨10.1007/s10853-017-1354-5⟩. ⟨hal-04632193⟩
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