学术研究：用于PET阻燃性的以倍半硅氧烷作为增效剂和眼磷酸锌的对比研究

用于PET阻燃性的以倍半硅氧烷作为增效剂和亚磷酸锌的对比研究

A comparative study of POSS as synergists with zinc phosphinates for PET fire retardancy

用于PET阻燃性的以倍半硅氧烷作为增效剂和亚磷酸锌的对比研究

作者：Didane, Nizar, Stéphane Giraud, Eric Devaux, et Guillaume Lemort
发表： Polymer Degradation and Stability 97, no 3 (mars 2012): 383 391. doi:10.1016/j.polymdegradstab.2011.12.004

 

Abstract/摘要：

This paper deals with the fire behaviour of poly (ethylene terephthalate) (PET) filled with Exolit OP950, a zinc phosphinate fire retardant, and three polyhedral oligomeric silsesquioxanes (POSS) having different chemical structures. Regardless of the POSS type, intumescence occurs during combustion, but the insulation properties of the chars produced are different. Best reductions on total heat evolved (THE) and on cumulative CO2 with no increase in CO emissions are observed when dodecaphenyl POSS is used. This may be related to its thermal degradation pathway, releasing via this process volatile organic species contributing on intumescence and producing an effective protective layer having a foliated structure.

 

Keywords/关键词：

  • PET;
  • POSS 倍半硅氧烷;
  • Fire retardancy 阻燃性;
  • Synergism 协效作用;
  •  Intumescence 膨胀

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