High-performance flame-retardant abs resin and its preparation process

Abstract

The invention discloses high-performance flame-retardant ABS (acrylonitrile butadiene styrene) resin and a preparation process thereof and belongs to the technical field of ABS preparation. The high-performance flame-retardant ABS resin comprises ABS resin material and flame-retardant reinforcing beads; each flame-retardant reinforcing bead includes a flame-retardant reinforcing bead shell; a plurality of flame-retardant powdery beads and flame-retardant liquid beads in uniform distribution are covered within each flame-retardant reinforcing bead shell, wherein the flame-retardant powdery beads are filled with flame-retardant powder, the flame-retardant liquid beads are filled with a flame-retardant liquid, a plurality of main reinforcing posts in uniform distribution are fixedly connectedto the outer surface of each flame-retardant reinforcing bead shell, and a plurality of auxiliary reinforcing posts in uniform distribution are fixedly connected to each main reinforcing post. As theflame-retardant reinforcing beads are added to the material, the flame-retardant ABS resin can burn for long time in case of a fire, and may automatically release fire powder and release carbon dioxide by chemical reaction, thereby alleviating spread of the fire and greatly reducing the loss of property or related equipment.

Description

technical field [0001] The invention relates to the technical field of ABS preparation, more specifically, relates to a high-performance flame-retardant ABS resin and a preparation process thereof. Background technique [0002] ABS resin is a graft copolymer of acrylonitrile (Acrylonitrile), 1,3-butadiene (Butadiene), styrene (Styrene) three monomers. The combustion mechanism of ABS resin is very complex. Due to the variety of raw materials used, proportions, process conditions and production methods, the actual composition of ABS resin varies greatly, and its combustion performance also varies. Generally, as the content of butadiene increases, the transparency of the resin decreases and the flammability increases. This is due to the existence of substituted tertiary carbon atoms in the polybutadiene phase, which is conducive to the hydrogen abstraction of oxygen from butadiene, and triggers oxidation to accelerate the degradation of ABS. It is also believed that the therm...

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Problems solved by technology

[0003] In the prior art, the flame-retardant ABS resin is to add a flame retardant on the basis of ABS to become an ABS resin that achieves a flame-retardant effect. It is widely used in industrial fields such as machinery, automobiles, electronic appliances, instruments, textiles, and construction. It is a thermoplastic engineering plastic with a wide range of uses, but in many application scenarios, ordinary flame-retardant ABS resin cannot play a good flame-retardant effect. For example, when the fire is large, the flame-retardant ABS resin will still be burned If it is damaged and cannot slow down the fire, it will cause greater losses to the corresponding instruments or products

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