Flammability and carbonization of high-impact polystyrene/α-zirconium phosphate nanocomposites

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• 作者：Dandan Yang ; Yuan Hu ; Hongtao Li ; Jingrong Wang ; Lei Song…
• 关键词：High ; impact polystyrene ; Alpha ; zirconium phosphate ; Nanocomposites ; Combustion behaviors ; High crystallization
• 刊名：Iranian Polymer Journal
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：24
• 期：12
• 页码：1069-1075
• 全文大小：1,828 KB
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• 作者单位：Dandan Yang (1)
  Yuan Hu (2)
  Hongtao Li (3)
  Jingrong Wang (1)
  Lei Song (2)
  Haiping Xu (1)
  Jiarong Chen (1)
  Zhiwei Lu (1)
  
  1. School of Environmental and Materials Engineering, Shanghai Second Polytechnic University, Shanghai, 201209, China
  2. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230027, Anhui, China
  3. Technical Center for Industrial Product and Raw Material Inspection and Testing of SHCIQ, Shanghai, 200135, China
  
• 刊物主题：Polymer Sciences; Ceramics, Glass, Composites, Natural Methods;
• 出版者：Springer Berlin Heidelberg
• ISSN：1735-5265

文摘

High-impact polystyrene (HIPS)/organophilic alpha-zirconium phosphate (organophilic α-ZrP, OZrP) nanocomposites were prepared by melt blending method. The XRD and high-resolution transmission electronic microscopy results showed that an intercalated/exfoliated structure of nanocomposites was formed. The thermal degradation behaviors indicated that the HIPS/OZrP nanocomposites displayed similar thermo-oxidative stability with that of HIPS, and α-ZrP could promote the formation of char residue of the nanocomposites. The combustion behaviors revealed that the addition of α-ZrP could reduce the value of peak heat release rate (HRR) and mass loss rate (MLR) of the nanocomposites. The peak HRR value of HIPS/OZrP nanocomposites with 3 wt% OZrP was 17 % lower than that of pure HIPS. The trends of MLR were the same as those of the HRR, which indicated that the mechanism of the observed reduction both in HRR and MLR by addition of the layered phosphate depended mainly on the condensed phase flame-retardant process instead of the gas phase flame-retardant process. It could be observed that HIPS left no residues after burning, whereas the HIPS/OZrP nanocomposites left the consistent and compact char residues. Moreover, graphite sheets and carbon nanotubes were observed in the char residues of nanocomposites. The experimental results suggested that polymers would have improved fire performance with the high crystallization of char residue in the presence of α-ZrP. Keywords High-impact polystyrene Alpha-zirconium phosphate Nanocomposites Combustion behaviors High crystallization