Modified flame-retardant ABS material and preparation method thereof

Abstract

The invention relates to a flame-retardant ABS material modified by expanded vermiculite powder and a preparation method thereof. The flame-retardant ABS material modified by expanded vermiculite powder is prepared from the following raw materials: ABS resin, brominated triazine, antimony trioxide, compatibilizer, organic expanded vermiculite powder, lubricant, primary antioxidant, auxiliary Antioxidant and anti-dripping agent. The flame retardant ABS material modified by expanded vermiculite powder has good flame retardant performance, heat resistance, high material gloss and fluidity, and can be widely used in plastic products such as electronic and electrical components, instrument casings and the like.

Description

Modified flame retardant ABS material and preparation method thereof technical field The present invention relates to polymer material field, be specifically related to a kind of expanded vermiculite powder modified flame-retardant ABS material and its system preparation method. Background technique Acrylonitrile-butadiene-styrene (ABS) has good chemical resistance and processability, high gloss and high cost Inexpensive. Due to the improvement of people's living standards, the requirements for fire protection of plastic materials used are getting higher and higher, such as household appliances. The flame-retardant ABS materials used in products, auto parts, etc. have a development trend of increasing the V‑0 level to the 5VA level. Vermiculite is a magnesium-containing hydroaluminosilicate mineral with a layered structure, and its volume increases by 6 to 15 after being burned at a high temperature. times, the expanded vermiculite density is 100~130kg / m 3 , h...

AI Technical Summary

Problems solved by technology

Chinese patent CN 104072805A discloses a preparation method of a vermiculite-based composite flame retardant. The composite flame retardant consists of the following components by mass: 20-35 parts of modified vermiculite, 30-45 parts of magnesium hydroxide, 15-25 parts of phosphorus-based flame retardant, 2-5 parts of silane coupling agent; use raw ore vermiculite with high content of interlayer water and structural water for acidification treatment, instead of using high-temperature expansion-treated vermiculite, its resistance The content of fuel additive is high, and the gloss of the material is poor

Chinese patent CN 101503553A discloses a halogen-free flame-retardant high-impact polystyrene composite material prepared with vermiculite as a flame-retardant additive. The flame retardant is mixed into a vermiculite composite flame retardant at a mass ratio of 1:1 to 1:10, and then the vermiculite composite flame retardant is mixed with high-impact polystyrene at a mass ratio of 1:1 to 1:5. It is obtained by refining and injection molding; the natural vermiculite is used after grinding, and it is directly added without high-temperature expansion treatment. The water content between layers is high, and injection molded parts are prone to serious material blooms.

[0006] Chinese patent CN 104744874A discloses a high heat-resistant low-smoke flame-retardant ABS material and its preparation method, which consists of 58-80% by mass percentage of ABS resin, 8-20% of brominated flame retardants, and 3-10% of antimony Composed of flame retardant, 1-2% composite smoke suppressant and 1-5% other processing aids; the vermiculite powder used in it does not mention that it has undergone high-temperature expansion treatment

Images