High-flame retardation polyurethane composite heat insulation plate

Abstract

The invention discloses a high-flame retardation polyurethane composite heat insulation plate. The high-flame retardation polyurethane composite heat insulation plate comprises two backing layers and a polyurethane heat insulation layer positioned between the two backing layers, the polyurethane heat insulation layer is made of a high-performance polyurethane foam material, and raw materials of the high-performance polyurethane foam material comprise polyether polyol, polyphenylpolymethylene polyisocyanate, hexamethylene diisocyanate, polyacrylate, liquid styrene butadiene rubber, cyclohexylamine, N,N-dimethylcyclohexylamine, dibutyltin dilaurate, methyl formate, water, hydroxy silicone oil, a fire retardant, expanded perlite, hollow glass micro-beads, pentaerythritol and sorbitol; and raw materials of the fire retardant comprise nanometer aluminum hydroxide, nanometer magnesium hydroxide, melamine phosphate, expandable graphite, hydroxy silicone oil, and a phosphamide fire retardant. The high-flame retardation polyurethane composite heat insulation plate has the advantages of high strength, excellent heat and flame retardation, and long service life.

Description

technical field

[0001] The invention relates to the technical field of polyurethane boards, in particular to a high flame-retardant polyurethane composite insulation board. Background technique

[0002] Polyurethane composite insulation board is composed of two layers of waterproof color-coated steel plates or other metal panels, and the middle is injected with flame-retardant polyurethane rigid foam. It is the best heat insulation material recognized in the world today. It can be used for large industrial plants, The roofs and walls of various buildings such as warehouses, exhibition halls, gymnasiums, cold storages, and purification workshops are integrated with heat preservation, heat insulation, load-bearing, and waterproof, and have the characteristics of rich colors and beautiful shapes. dominate the material market. However, the rigid polyurethane foam used for insulation boards has a porous structure, which makes it easier to ignite than ordinary plastics, and relea...