Halogen and phosphorus-free flame-retardant antistatic ABS resin and its preparation method

Abstract

The invention relates to a halogen and phosphorus-free flame-retardant antistatic ABS (acrylonitrile-butadiene-styrene) resin, which comprises the following components by weight: 45%-75% of ABS resin; 20%-40% of styrene-acrylonitrile resin; 0.1%-5% of a silicone flame retardant; 0.1%-2% of a sulfonate flame retardant; 2%-8% of an antistatic agent; 0.1%-1% of an antioxidant; and 0.2%-1% of a processing aid. Compared with the prior art, on the basis of maintaining the intrinsic good impact resistance of ABS resin, the ABS resin provided in the invention also has excellent flame retardance and antistatic property, and has a simple preparation technology that is easy to operate, thus having broad application prospects.

Description

Technical field [0001] The invention relates to a halogen-free and phosphorus-free flame-retardant antistatic ABS resin, which belongs to the technical field of polymer materials. Background technique [0002] ABS resin is a kind of thermoplastic with excellent performance. It has excellent low temperature resistance, impact resistance, chemical resistance, heat resistance, dimensional stability, surface gloss, low molding shrinkage, etc., due to its various advantages Advantages, it is widely used in household appliances, electronic appliances, office equipment and many other fields. However, the flame retardancy of ABS resin itself is extremely low, and the oxygen index is only about 18, which is a flammable material. It is recommended to be used in household appliances, electronic appliances and other fields. Its flammability must comply with the American safety laboratory standard UL-94 Relevant regulations; therefore, it is very important to modify the flame retardant ABS r...

AI Technical Summary

Problems solved by technology

At present, the flame retardants used to prepare halogen-free flame-retardant ABS resins are mainly phosphorus-based flame retardants. The molecular weight of these flame retardants is relatively small. A large amount of flame retardant will not only significantly reduce the physical and mechanical properties of ABS resin, especially toughness and heat resistance, but also affect the processing fluidity of ABS

In addition, when ABS resin contacts or rubs against the surface of other materials, it is easy to generate static electricity accumulation, resulting in dust collection, electric shock or spark discharge, which brings inconvenience and safety hazards in the process of production and use.