Research progress in flame-retardant poly(butanediol succinate)
This article reviewed the research progress in flame-retardant polybutylene succinate(PBS)and its flame-retar-dant mechanism in recent years.The commonly used flame retardants for PBS resin include phosphorus-nitrogen based flame retardants,nano flame retardants,biobased flame retardants,and their compound systems.Among them,phos-phorus-nitrogen-based flame retardants have the most development and modification schemes.Especially,the flame-re-tardant system based on ammonium polyphosphate(APP)currently is the most studied and effective system,including the composite system of APP and nano flame retardants and the composite system of APP and bio-based flame retar-dants.Meanwhile,the article summarized the flame-retardant performance and typical flame-retardant mechanisms of various flame-retardant systems.