In order to meet the special requirements of fire safety, in recent years, the flame retardant technology of PC / A BS alloy has become a research hotspot. In particular, the publication of the EU RoHS and WEEE directives has limited the application of halogen-based flame retardant PC / A BS alloys in many industries. Therefore, research and development of PC / A BS alloy special efficient and environmentally friendly halogen-free flame retardant has become the focus of research in the field of flame retardant.

With excellent mechanical properties, polycarbonate (PC is a thermoplastic engineering plastic. Good heat resistance and low temperature resistance, stable electrical properties, good dimensional stability. However, PC processing is poor in fluidity, sensitive to notches, and easy Stress cracking, poor chemical resistance, and high price limit its scope of application. ABS is also a thermoplastic resin with good chemical resistance and good processability. PC and ABS are blended, extruded, and prepared Forming a PC / A BS alloy can combine the excellent properties of both, on the one hand, it can improve the heat resistance and tensile strength of ABS; on the other hand, it can reduce the melt viscosity of PC, improve the processability, reduce the sensitivity of the product to stress, and Can reduce costs. Therefore, PC / A BS alloy has been widely used in automobiles, mechanical appliances, computers, communication tools, office equipment and other industries.