Flame retardant putty

Abstract

The invention discloses flame retardant putty. The putty which comprises a main body and an initiator according to a weight ratio of 100:2 is obtained by uniformly mixing the main body and the initiator according to the weight ratio, wherein the main body comprises, by weight, 50-56 parts of an unsaturated polyester resin, 10-15 parts of an organosilicon resin, 12-15 parts of a saturated polyester resin, 8-12 parts of styrene, 0.02-0.03 parts of dimethylglyoxime, 1.4-1.8 parts of cobalt isooctanoate, 3-5 parts of sodium bentonite, 9-11 parts of titanium dioxide, 3-5 parts of barium sulfate, and 14-18 parts of talc powder; and the initiator comprises, by weight, 58-62 parts of cyclohexanone peroxide, 28-32 parts of dibutyl phthalate and 12-14 parts of SiO2.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to a flame-retardant putty. Background technique [0002] Flame retardant putty usually refers to the primer coating material for metal surface embedding materials, especially a normal temperature drying and air drying type silicone modified unsaturated flame retardant putty. There are generally two types of filling materials for metal surfaces: one is water-based putty, and the other is resin putty. Chinese patent CN86101069 discloses a formula called "cross-linked emulsion baking putty" and its production method. The putty uses water instead of organic solvents. It is non-flammable, non-toxic and harmless, and does not pollute the environment. However, the putty manufactured by this patent must be dried at about 110°C for 50 minutes; such drying conditions greatly limit the use of its putty , due to large-scale equipment and accessories that are not convenient to move, it is dif...

AI Technical Summary

Problems solved by technology

Chinese patent 94115901 discloses a formula and production method of "normal temperature quick-drying high-grade polymeric putty". The putty is mainly composed of mixed unsaturated resin, and has the characteristics of putty putty, fast drying, strong adhesion, flexibility and sandability. , good brushing properties, etc., but the resin used in this patent is an unsaturated polyester resin commonly used in putty, and the heat-resistant temperature is usually below 150°C. At the same time, the putty has no flame retardant performance, so the putty The heat resistance and flame retardancy cannot meet the special requirements of subway vehicles and other high-temperature places, such as front cars, axles, flues, etc.