4.7 Article

Design and Application of Highly Efficient Flame Retardants for Polycarbonate Combining the Advantages of Cyclotriphosphazene and Silicone Oil

Journal

POLYMERS
Volume 11, Issue 7, Pages -

Publisher

MDPI
DOI: 10.3390/polym11071155

Keywords

triphosphazene; flame retardant; silicone oil; polycarbonate

Funding

  1. Natural Science Foundation of Jiangsu Province [BK20160280]
  2. Double Plan of Jiangsu Province

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A novel flame retardant (HSPCTP) was successfully designed and incorporated into a polycarbonate (PC) matrix. Combining the advantages of cyclotriphosphazene and silicone oil, PC /HSPCTP composites passed UL-94 V-0 rating testing with only 3 wt% HSPCTP, and their LOI value increased from 25.0% to 28.4%. The findings showed that HSPCTP exhibits both gas-phase and solid-phase flame-retardant e ff ects. Furthermore, the incorporation of HSPCTP into PC could suppress the release of smoke. Finally, the flame-retardant mechanism is discussed in depth.

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