Toughening flame-retardant polystyrene

Abstract

The invention discloses toughening flame-retardant polystyrene, and belongs to the technical field of high molecular organic matter. The toughening flame-retardant polystyrene is composed of the following substances: 1600-2000 parts of polystyrene, 10-12 parts of clay, 50-55 parts of straw ash, 1-2 parts of silane coupling agent KH550, 1-2 parts of nano carbon powder, 2-3 parts of sodium bicarbonate, 4-5 parts of sodium selenite, 5-6 parts of cuttlefish bone powder, 3-8 parts of triethyl phosphate, 5-9 parts of dibutyl phthalate, 6-12 parts of N,N'-ethylene bis stearamide and 3-7 parts of polyvinyl acetate. The polystyrene foam provided by the invention has an excellent flame-retardant effect, gives excellent mechanical properties to a polystyrene foam material, has high strength and a lowdensity, maintains the advantages such as thermal insulation, a light mass and a low water absorption rate of the polystyrene foam material, is flexible and not easy to break, and improves the mechanical strength of the polystyrene material.

Description

technical field [0001] The invention relates to a toughened flame-retardant polystyrene, which belongs to the technical field of high molecular organic matter. Background technique [0002] Expanded polystyrene resin is a foam material with low density and thermal insulation properties first invented by BASF in the early 1940s. The structure of expanded polystyrene resin is characterized by large specific surface area, and the internal structure of the material is cell-like, and between the cells are cell walls, pillars or polystyrene films, and most of the internal volume of the material is occupied by air. When it catches fire, it is very easy to spread the flame. Therefore, the flame retardancy of expanded polystyrene resin products is much more difficult than other common resin materials. Moreover, when expanded polystyrene resin burns, it will produce an orange flame, emit the smell of styrene, and be accompanied by a large amount of black smoke, which is very toxic. ...

AI Technical Summary

Problems solved by technology

Moreover, when the expanded polystyrene resin burns, it will produce an orange flame, emit the smell of styrene, and be accompanied by a large amount of black smoke, which is very toxic

Existing flame retardant foaming materials, their flame retardant properties are still not ideal, and cannot meet some occasions with high fire protection requirements, and are still subject to some limitations in use