Study on flame retardancy and heat resistance of polyvinyl alcohol/nano magnesium hydroxide composite film
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.
Polyvinyl alcoholNano magnesium hydroxideFlame retardantFlame retardant film
万方数据
维普
