Antagonistic flame retardancy between hexakis(4-nitrophenoxy) cyclotriphosphazene and potassium diphenylsulfone sulfonate in the PC system

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• 作者：Yunyun Yang ; Jun Liu ; Xufu Cai
• 关键词：Antagonistic effect ; Hexakis(4 ; nitrophenoxy)cyclotriphosphazene (HNTP) ; Potassium diphenylsulfone sulfonate (KSS) ; Bisphenol ; A polycarbonate (PC)
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：126
• 期：2
• 页码：571-583
• 全文大小：2,588 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Sciences
  Polymer Sciences
  Physical Chemistry
  Inorganic Chemistry
  Measurement Science and Instrumentation
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1572-8943
• 卷排序：126

文摘

Hexakis(4-nitrophenoxy) cyclotriphosphazene (HNTP) was added to polycarbonate (PC) as intumescent flame retardant. In order to get high-flame-retardant PC composite with a small quantity of addition, potassium diphenylsulfone sulfonate (KSS) was added to PC as synergetic flame retardant. The flame retardancy and thermal degradation behavior of composites was investigated with limiting oxygen index (LOI), UL-94 vertical burning test, microscale combustion calorimeter (MCC), and thermogravimetric analysis (TG). TG coupled with FTIR (TG/FTIR) was used to research their gaseous products. Scanning electron microscopy analyses and FTIR spectrophotometer were used to study the structure of residual char. But the flammability properties of PC systems indicated the synergistic was instead of antagonistic effects. The antagonistic behaviors between HNTP and KSS were further researched by MCC, TG, and FTIR. The antagonism of KSS was quantified by Lewin M’s synergistic effectiveness parameter, calculated from sample LOI data.