Flame-retarding polymer foam material and preparation method thereof

Abstract

The invention discloses a flame-retarding polymer foam material which is characterized by comprising polymer foam plastic, wherein the surface of the polymer foam plastic is provided with an organic flame retardant layer; and the organic flame retardant layer is formed by attaching a molten organic flame retardant to the surface of the polymer foam plastic through a spraying, coating or soaking way. The invention also discloses a preparation method of the flame-retarding polymer foam material. In the invention, a flame-retarding variety which is effective to the polymer foam plastic, in particular to extrusion foamed polystyrene foam plastic, is selected from numerous flame retardants, and the polymer foam product with excellent flame-retarding property is prepared by adopting a simple and feasible method. Through the invention, an effective method for increasing the addition amount of the flame retardant is obtained on the premise of not influencing the foaming property of the foam products and not reducing the strength and the insulation and thermal preservation property of foams, and different flame-retarding requirements can be met by flexibly changing the attaching amount of the flame retardant.

Description

technical field [0001] The invention relates to a foam material, especially a flame-retardant polymer foam material, and also relates to a preparation method of the flame-retardant polymer foam material. Background technique [0002] Polymer foams are aggregates formed by gas dispersion in a solid polymer. Foam plastic has the advantages of light weight, heat insulation, cushioning, insulation, anti-corrosion, and low price, so it is widely used in construction, packaging, industry, agriculture, transportation, military industry, and aerospace industry, and its application fields are expanding day by day. The demand for foamed plastics in the market has grown rapidly in recent years. The main varieties are polyurethane (PU) soft and rigid foam, polystyrene (PS) foam, polypropylene (PP) foam, polyvinyl chloride foam and polyethylene (PE) foam. [0003] Polymer foams come in various forms, especially in the form of foam sheets, films, etc. A significant disadvantage of artic...

AI Technical Summary

Problems solved by technology

However, the composition of the water-based flame retardant is complex and the method of use is cumbersome

At the same time, although water-based flame retardant coatings can be cured and dried, their drying time is longer than that, which is not conducive to continuous industrial production, and their use is limited by seasons. At the same time, water-based flame retardant products will dissolve when exposed to water, so they are not suitable for insulation materials that require open-air construction.

In addition, the compatibility between inorganic flame retardants and organic polymer foams is poor, and they are easy to pulverize on the polymer surface, peel off, and affect subsequent use.