Flame retardant polyurethane spray coating foamed plastic

Abstract

The invention discloses a flame retardant polyurethane spray coating foamed plastic, which is composed of a combination white material and isocyanate with mass ratio as 1: 1-1.2. The combination white material includes the following components by mass: 65 to 75 parts of trihydroxyl-amino resin, 5 to 15 parts of trihydroxyl phosphate, 8 to 20 parts of poly-phosphate amine, 10 to 15 parts of glycerin, 2.5 to 3 parts of silicon-carbon bond non-hydrolysis polysiloxane- polyether copolymer, 0.6 to 0.8 part of water, 0.25 to 0.3 part of N,N,N,N,N-pentamethyl-diethylenetriamine, 0.8 to 1 part of dimethylcyclohexylamine, 1.8 to 2 parts of dipropylene glycol solution of triethylene diamine of 33+ / -1Wt.%, 0.15 to 0.2 part of dibutyltin dilaurate catalyst, 3 to 3.5 parts of hexahydro-triazine, 11 to 15 parts of fatty alcohol-polyoxyethylene ether, 25 to 35 parts of 4(2-chloride ethyl) diethylene-ether-diphosphate and 30 to 38 parts of fluorine ethylene dichloride. The flame retardant polyurethane spray coating foamed plastic is good in heat resistance, fire penetration resistance and flexibility and high in strength. According to the detection, the inflaming retarding grade of the product can reach the B grade according to GB / T8624-2006 standard, so that the flame retardant polyurethane spray coating foamed plastic can be used in various fireproof building fields.

Description

technical field [0001] The invention relates to a phosphorus-nitrogen expansion reaction flame-retardant polyurethane foam plastic, and more particularly relates to a flame-retardant polyurethane spray foam plastic. Background technique [0002] Due to the special structure of polyurethane foam molecules, it is easy to burn. With the continuous popularization and application of polyurethane energy-saving thermal insulation rigid foam application technology, the requirements for its flame retardant performance are getting higher and higher, especially GB8624-2006 "Requirements and Marking of Flame Retardant Products and Components in Public Places" and GB8624-2006 After the promulgation and implementation of the "Classification Method for Combustion Behavior of Building Materials", polyurethane foam is facing a severe test in terms of flame retardant and fireproof performance. At present, the building energy-saving thermal insulation spray polyurethane foam in the polyuretha...

AI Technical Summary

Problems solved by technology

Since most rigid foams are closed cells, this method is not suitable for closed cell rigid foams

[0024] 4) Introduce a flame-retardant structure: In the molecular structure of the foam, a structure with certain flame-retardant properties such as isocyanurate and oxazolidinone is introduced, but the effect is not good, and it cannot pass the national 06 standard B level and 06 standard C level test

Although the fire-resistant coating method has great practical significance, the second) method is not a flame-resistant method for foam plastic itself.

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