Flame retardant polyurethane material as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of high molecular material modification and discloses an energy-saving environment friendly sound insulation flame retardant polyurethane material as well as a preparation method and application thereof. The flame retardant polyurethane material consists of the following components in parts by weight: 100 parts of polyether, 120-145 parts of polyurethane reactive monomer, 4.5-12 parts of foaming agent, 1.5-2.5 parts of foam stabilizer, 20-40 parts of polyester, 0.5-10 parts of compatilizer, 0-2.5 parts of amine catalyst, 0-2 parts of tin catalyst, 10-20 parts of fire retardant, 0-3 parts of flame retardant synergist and 10-20 parts of heat insulation and sound insulation assistant. Compared with the prior art, the energy-saving environment friendly sound insulation flame retardant polyurethane material provided by the invention is light in weight, high in strength, good in waterproof compactness, environment friendly due to no halogen, good in heat preservation, heat insulation and sound insulation effects and good in flame retardance and fireproofness up to the V-0-grade standard of UL-94 when being used as a foam building board. The material can be widely applied to various national economy fields such as the building board and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and in particular relates to an energy-saving, environment-friendly, sound-insulating and flame-retardant polyurethane material, a preparation method and an application thereof. Background technique [0002] At present, the commonly used thermal insulation building board materials in my country include expanded polystyrene board EPS, extruded polystyrene board XPS, sprayed polyurethane SPU and polystyrene particles, etc. The auxiliary materials are polymer bonded mortar, interface treatment agent or interface mortar, special Expansion screws, alkali-resistant glass fiber mesh and galvanized steel wire mesh, etc. Polystyrene (EPS / XPS) foam thermal insulation material is a thermoplastic material, which has the characteristics of light weight, good processability, good compactness, and good thermal insulation effect. It has superior performance than inorganic thermal insulation ...

AI Technical Summary

Problems solved by technology

Polystyrene (EPS / XPS) foam thermal insulation material is a thermoplastic material, which has the characteristics of light weight, good processability, good compactness, and good thermal insulation effect. It has superior performance than inorganic thermal insulation materials, but in Some of its shortcomings are gradually exposed during use: EPS / XPS insulation materials have a cavity structure, and the outside air is easy to flow through the gaps in the cavity and affect the heat insulation effect; poor wind resistance: the tensile strength of EPS is lower than that in dry conditions. , is only 0.1Mpa, and the tensile strength after immersion in water is lower, so EPS is generally not used in high-rise buildings; EPS / XPS insulation materials need to be stored for 40 days before they can be used for construction, which is difficult to do in practice, so the application of EPS insulation The project is prone to cracks, wall moisture penetration and water return; most EPS / XPS insulation materials are foamed with freon, which is easy to cause air pollution, and molten droplets are generated at high temperatures in case of fire, which is prone to secondary combustion and has extremely fast flame propagation speed

However, the environmental protection, flame retardant and smoke elimination performance of domestic products are not up to standard, and a large amount of dense smoke is easily generated when burning, causing casualties

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