%0 Journal Article
%T Flame
%A Chenguang Yao
%A Guisheng Yang
%A Jianming Wu
%A Xi Cheng
%J Journal of Fire Sciences
%@ 1530-8049
%D 2019
%R 10.1177/0734904119851270
%X Aluminum hypophosphite combined with melamine cyanurate and poly(phenylene oxide) was applied to flame retard TPE-S system (blends of SEBS and polyolefin). TPE-S containing 16£¿wt% aluminum hypophosphite, 20£¿wt% melamine cyanurate, and 10£¿wt% poly(phenylene oxide) pass a V-0 rating in the UL-94 test and its limiting oxygen index value is 28.2%. Zinc borate and magnesium hydroxide were added to modify the AHP/MCA/PPO formulation. Thermogravimetric¨CFourier transform infrared analysis tests showed that aluminum hypophosphite and melaminecyanurate acted in gaseous phase while aluminum hypophosphite and poly(phenylene oxide) helped to form char residue. TPE-S/AHP/MCA/PPO significantly decreased the heat release rate (reduction in peak heat release rate from 2001 to 494£¿kW£¿m£¿2). Scanning electron microscopy/energy dispersive spectrometry results demonstrated that zinc borate and magnesium hydroxide promoted to retain more P and O elements in residue. Zinc borate and magnesium hydroxide in AHP/MCA/PPO formulation enhanced the char formation and reduced gas evolution of TPE-S, thus deteriorating the combination between gaseous phase and condensed phase
%K SEBS
%K aluminum hypophosphite
%K flame retardant
%K zinc borate
%K magnesium hydroxide
%U https://journals.sagepub.com/doi/full/10.1177/0734904119851270