China Plastics ›› 2021, Vol. 35 ›› Issue (5): 107-112.DOI: 10.19491/j.issn.1001-9278.2021.05.017

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Effect of Talc on Properties of Flame⁃retardant Polycarbonate

YING Jie(), QIU Qihao, ZHANG Xing, GU Hainan, LUO Rui   

  1. Ningbo Zhetie Dafeng Chemical Co,Ltd,Ningbo 315204,China
  • Received:2021-01-11 Online:2021-05-26 Published:2021-05-24

Abstract:

Talc was used to modify the flame retardancy of polycarbonate (PC) filled with titanium dioxide. The effects of talc on the thermal stability, combustion and mechanical properties, flame retardancy and anti-aging performance of resultant PC compounds were investigated. The results indicated that the PC compounds presented a decrease in impact strength. With the addition of 0.5 wt%~2 wt% talc, the flame?retardancy of the compounds reached the UL 94 V?0 classification, the total heat release decreased by 4~8 MJ/m2, and the initial decomposition temperature increased by 8~10 °C. Meanwhile, the compounds exhibited an improvement in the ability to resist the heat oxygen aging and damp heat aging in the presence of adding talc.

Key words: polycarbonate, talc, thermal oxidative aging, hydrothermal aging

CLC Number: