Fireproof flame-retardant polyurethane external wall thermal-insulation system material

A technology for thermal insulation and fire resistance of external walls, which is applied in the fields of fireproof coatings, heat preservation, and fire prevention. To achieve the effect of excellent fire and flame retardant properties

Inactive Publication Date: 2010-10-06
SHANGHAI COLLODIN MATERIAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent proposes that the system has a fire retardant function, and its fire retardant function is realized through the barrier effect of the interface mortar and the plastering polymer mortar. The fire and flame retardancy is not good, which will affect the fire and flame retardant effect of the whole system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation of phosphorus-containing flame-retardant polyether polyol: heat and dissolve 0.2mol tetrabromobisphenol A, 0.5mol pentaerythritol, and 0.3mol sucrose, slowly add 0.3mol polyphosphoric acid at 100°C, react for 5 hours, and then drop 10mol epoxy Chloropropane is added dropwise to carry out ring-opening etherification reaction to obtain a flame-retardant polyether polyol containing 5 wt% of phosphorus and 10 wt% of bromine.

[0022] Preparation of amino heterocyclic polyether: add 1mol toluene diamine and 0.1mol melamine to the reaction flask, add 0.3g potassium hydroxide, heat and dissolve at 60°C, then pass in 3mol propylene oxide and 3mol ethylene oxide, react for 5h , to obtain a heterocyclic amino polyether polyol with a functionality of 4, a hydroxyl value of 420 mgKOH / g, and a viscosity of 1000 cp.

[0023] Bromination of polyphenyl polymethyl isocyanate: add bromine with a concentration of 8wt% dropwise to polyphenyl polymethyl isocyanate at room temper...

Embodiment 2

[0027] Phosphorus-containing flame-retardant polyether polyol 80g, heterocyclic amino polyether polyol 20g, silicone foam stabilizer 2g, catalyst dimethylethanolamine 2g, catalyst dibutyltin dilaurate 1g, flame retardant methylphosphoric acid di Mix 50 g of methyl ester and 20 g of fluorodichloroethane as a foaming agent to obtain component A; mix and foam brominated polyphenylpolymethyl isocyanate between component A and component B in a weight ratio of 1:1, and the isocyanate The index is 1.05. The obtained flame retardant polyurethane rigid foam material had an oxygen index of 31, a smoke density of 53, and a compressive strength of 0.5 MPa.

[0028] The moisture-proof primer, flame retardant polyurethane rigid foam material, interface agent, anti-crack mortar, fireproof paint and finishing paint are brushed on the wall from the inside to the outside to form the external wall insulation material.

Embodiment 3

[0030] Phosphorus-containing flame-retardant polyether polyol 50g, heterocyclic amino polyether polyol 50g, silicone foam stabilizer 2g, catalyst dimethylethanolamine 2g, catalyst dibutyltin dilaurate 1g, flame retardant tri(2) phosphate -Chloroethyl) ester 20g and foaming agent fluorodichloroethane 40g are mixed to obtain A component; A component and B component brominated polyphenyl polymethyl isocyanate are mixed in a weight ratio of 1:1 Foaming, isocyanate index 1.10. The obtained flame retardant polyurethane rigid foam material had an oxygen index of 29, a smoke density of 79, and a compressive strength of 0.7 MPa.

[0031] The moisture-proof primer, flame retardant polyurethane rigid foam material, interface agent, anti-crack mortar, fireproof paint and finishing paint are brushed on the wall from the inside to the outside to form the external wall insulation material.

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Abstract

The invention relates to a fireproof flame-retardant polyurethane external wall thermal-insulation system material, which is characterized by comprising a moistureproof primer paint, a flame-retardant rigid polyurethane foam material, an interface agent, anti-crack mortar, a fireproof coating and a decorating coating which are arranged sequentially from inside to outside, wherein the flame-retardant rigid polyurethane foam material consists of an component A and a component B; the component A is prepared by mixing 80 to 50 parts by weight of phosphorous flame-retardant polyether polyol, 20 to 50 parts by weight of heterocyclic amine polyether polyol, 2 parts by weight of organic silicon foam stabilizer, 2 parts by weight of dimethylethanolamine catalyst, 1 part by weight of dibutyltin dilaurate catalyst, 20 to 50 parts by weight of flame retardant and 20 to 40 parts by weight of fluoro dichloroethane; the component B is a flame-retardant polyisocyanates curing agent; in the using process, the component A and the component B are mixed and foamed and an isocyanate index is between 1.05 and 1.10. The fireproof flame-retardant polyurethane external wall thermal-insulation system material of the invention has the advantage of having higher fireproof flame-retardant property.

Description

technical field [0001] The invention belongs to the technical field of external wall thermal insulation, and in particular relates to a spray-coated fire-resistant and flame-retardant polyurethane hard foam external wall thermal insulation system material. Background technique [0002] The organic insulation materials currently used on a large scale in my country's building energy conservation mainly include EPS (polystyrene foam), PS (extruded polystyrene foam) and PU (polyurethane foam), all of which are flammable organic insulation materials. The biggest advantage is the quality Lightweight, good heat preservation and heat insulation; the biggest defect is poor fire safety, easy aging, and easy burning. If these new building energy-saving materials have not been modified by the chemical structure of flame retardant and smoke reduction, if they are simply added with flame retardants, there will be serious fire hazards, leading to frequent building fire accidents, CCTV fires...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F13/075E04B1/76E04B1/94C04B28/04C04B26/04C08L75/08C09D133/00C09D5/18
CPCC04B2111/28C04B2111/00482C04B2111/00612C04B26/10
Inventor 高群孙生根高建洪
Owner SHANGHAI COLLODIN MATERIAL TECH DEV CO LTD
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