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Article Dans Une Revue Composites Part B: Engineering Année : 2020

The flammability and mechanical properties of poly (lactic acid) composites containing Ni-MOF nanosheets with polyhydroxy groups

Xingguo Wang
  • Fonction : Auteur
Shuheng Wang
  • Fonction : Auteur
Wenjia Wang
  • Fonction : Auteur
Hongfei Li
  • Fonction : Auteur
Xiaodong Liu
Xiaoyu Gu
  • Fonction : Auteur
  • PersonId : 765935
  • IdRef : 16476142X
Zhongwei Wang
  • Fonction : Auteur
Jun Sun
Sheng Zhang
  • Fonction : Auteur

Résumé

This work reports our recent effort on the preparation of α-Phenyl-N-(2-propyl-2-hydroxymethyl-1, 3-dihydroxy)-imine-Nickel (II) (Ni-MOF) containing polyhydroxy groups and its application in improving the fire performance of PLA composites in combination with ammonium polyphosphate (APP). The flame retardant evaluation revealed that the presence of 1.7% Ni-MOF and 3.3% APP in PLA increased the LOI value to 31.0%, upgraded the UL-94 level to V-0, decreased the peak heat release rate (pHRR), total heat release (THR) and total smoking production (TSP) by 27%, 19% and 50%, respectively, and substantially delayed the time to ignition (TTI) from 67 to 97 s. It was proposed that the flame retardants take effect in both vapor and condensed phases, and Ni-MOF nanosheets can synergistically improve the flame resistance of PLA with APP. The incorporation of Ni-MOF effectively inhibited the deterioration of mechanical properties for PLA composites caused by the presence of APP.
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Dates et versions

hal-02428613 , version 1 (06-01-2020)

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Citer

Xingguo Wang, Shuheng Wang, Wenjia Wang, Hongfei Li, Xiaodong Liu, et al.. The flammability and mechanical properties of poly (lactic acid) composites containing Ni-MOF nanosheets with polyhydroxy groups. Composites Part B: Engineering, 2020, Composites Part B: Engineering, pp.107568. ⟨10.1016/j.compositesb.2019.107568⟩. ⟨hal-02428613⟩
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