Halogen-free anti-flaming polycarbonate/thermoplastic polyester resin composition

Abstract

The invention discloses a halogen-free flame retardant polycarbonate / thermoplastic polyester resin composition, whose components and proportions are as follow: polycarbonate 50 percent to 85 percent, thermoplastic polyethylene terephthalate resin 5 percent to 30 percent, core-shell graft coplolymer 2 percent to 15 percent, phosphorus-containing flame retardant 5 percent to 15 percent, super fine talc powder 0 to 20 percent and phosphite antioxidant 0 to 0.05 percent, the above contents are all in weight percentage. The product of the invention has the advantages that no large amount of harmful gas is released when the product is burned with environmental protection and safety.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant thermoplastic composition prepared from polycarbonate and thermoplastic polyester resin, which belongs to the production method of the halogen-free flame-retardant thermoplastic composition. technical background [0002] Bisphenol A polycarbonate (PC) is an engineering plastic with excellent comprehensive properties. It has high rigidity and elastic modulus, good thermal stability, and stable product size; in a wide temperature range, its impact strength is higher than other engineering plastics. However, its high melt viscosity, difficult processing, large internal stress of the product, and poor resistance to solvent erosion limit its application. [0003] On the other hand, thermoplastic polyethylene terephthalate (PET) has many well-known excellent physical properties in its crystalline state, such as high tensile strength, good chemical resistance, and good thermal stability. However, due t...