PVA/nano MH composite flame retardant film was prepared by solution blending method,and its thermal degradation kinetics were studied.The flame retardant grade of the composite film was evaluated.Thermal degrada-tion kinetics analysis revealed that the thermal degradation reaction of the flame retardant film is a first-order reac-tion,and the Ea of the flame retardant film is significantly higher than that of PVA film.The combustion results showed that with the increase of nano MH content,the residual flame time,total residual flame time,and afterglow time of individual samples of the flame retardant film gradually decreased.When the nano MH content reached 50％,the flame retardant grade reached V-0 level,and excellent flame retardant performance was obtained.Nano MH has broad application prospects for PVA flame retardancy.
关键词
聚乙烯醇/纳米氢氧化镁/阻燃/阻燃膜
Key words
Polyvinyl alcohol/Nano magnesium hydroxide/Flame retardant/Flame retardant film
维普
万方数据