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A wrapped nano-flame retardant composed of carbon nanotubes and phosphorus-nitrogen containing polymer: synthesis, properties and flame-retardant mechanism

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Abstract

A nano-flame retardant (PCP-CNT) with the phosphorus-nitrogen containing polymer (PCP) wrapped nanotubes (CNTs) was produced via strong π-π stacking interactions between the walls of CNTs and PCP polymerized with hexachlorocyclotriphosphazene (HCCP) and p-phenylenediamine (p-PDA). The structures and properties of PCP-CNT were characterized by infrared absorption spectrum (FTIR), solid 1H nuclear magnetic resonance spectroscopy (1H NMR), transmission electron microscopy (TEM) and thermal gravimetric analysis tests (TGA). The flame retardancy of the flame-retardant polybutylene terephthalate (FR-PBT) was studied via limited oxygen index (LOI) and cone calorimeter (CONE) tests. The pk-HRR of FR-PBT was significantly reduced by 59.8 and 69.4% with the addition of 10 and 15% PCP-CNT, respectively. In addition, the thermal degradation mechanism of the pristine PBT and FR-PBT were discussed by using Ozawa method.

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Acknowledgments

The work was supported by the National Natural Science Foundation of China (No.51403007).

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Authors and Affiliations

  1. Department of Materials Science & Engineering, Beijing Technology and Business University, Beijing, 100048, People’s Republic of China

    Fei Xin, Congcong Zhai, Chao Guo & Lijun Qian

  2. Beijing Huateng Hightech Co., Ltd., Beijing, 100048, People’s Republic of China

    Yu Chen

  3. Minist Educ, Key Lab Polymer Composite & Funct Mat, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, People’s Republic of China

    Xudong Chen

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  1. Fei Xin
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  2. Congcong Zhai
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  3. Chao Guo
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  4. Yu Chen
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  5. Lijun Qian
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Correspondence to Fei Xin or Lijun Qian.

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Xin, F., Zhai, C., Guo, C. et al. A wrapped nano-flame retardant composed of carbon nanotubes and phosphorus-nitrogen containing polymer: synthesis, properties and flame-retardant mechanism. J Polym Res 25, 201 (2018). https://doi.org/10.1007/s10965-018-1599-y

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