A Novel Application of Phosphorene as a Flame Retardant

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Xinlin Ren ; Yi Mei ; Peichao Lian ; Delong Xie ; Yunyan Yang ; Yongzhao Wang ; Zirui Wang (2018)
  • Publisher: MDPI AG
  • Journal: Polymers (issn: 2073-4360)
  • Related identifiers: doi: 10.3390/polym10030227
  • Subject: phosphorene | black phosphorus | flame retardant | polymer | waterborne polyurethane | Organic chemistry | QD241-441

Black phosphorene-waterborne polyurethane (BPWPU) composite polymer with 0.2 wt % of black phosphorene was synthesized. Scanning electron microscopy (SEM) was used to observe the morphology of phosphorene in polyurethane matrix, which indicated that the phosphorene distributes uniformly in the PU matrix. The flammability measurements were carried out to investigate the flame-resistant performances of phosphorene, which indicated that phosphorene could effectively restrict the degradation of the PU membrane. Compared by the pure WPU, the limiting oxygen index (LOI) of BPWPU increased by 2.6%, the heat flow determined by thermal analysis significantly decreased by 34.7% moreover, the peak heat release rate (PHRR) decreased by 10.3%.
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