CN108102346A - A kind of flame retarded rigid polyurethane foams feedstock composition - Google Patents

A kind of flame retarded rigid polyurethane foams feedstock composition Download PDF

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Publication number
CN108102346A
CN108102346A CN201711316537.9A CN201711316537A CN108102346A CN 108102346 A CN108102346 A CN 108102346A CN 201711316537 A CN201711316537 A CN 201711316537A CN 108102346 A CN108102346 A CN 108102346A
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parts
feedstock composition
polyurethane foams
composition according
polyol
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李文
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Anhui Weilang Chemical Technology Co Ltd
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Anhui Weilang Chemical Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/10—Rigid foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium

Abstract

The present invention provides a kind of feedstock compositions of high fire-retardance hard polyurethane foams, contain aluminium hydroxide and three（Polyoxygenated alkene）Phosphate or aluminium hydroxide and three（Polyoxygenated alkene）The mixing fire retardant of phosphite ester.The hard polyurethane foams good flame retardation effect prepared using above-mentioned raw materials composition, can reach fire retardant rank.Hard polyurethane foams prepared by above-mentioned raw materials composition can be used as building thermal insulation material.

Description

A kind of flame retarded rigid polyurethane foams feedstock composition
Technical field
The present invention relates to a kind of polyurethane foam feedstock compositions, and in particular to a kind of original of flame retarded rigid polyurethane foams Material, belongs to polymer arts.
Background technology
Hard polyurethane foams have excellent physical and chemical performance, electric property, acoustical behavior and resistant to chemical etching Performance, and there is very strong cementitiousness with multiple material, it is widely used as the energy-saving material of construction industry, but without fire-retardant place The oxygen index (OI) of the rigid polyurethane foam of reason is relatively low, and the fire protection flame retarding requirement of construction material is not achieved.
Addition fire retardant is the effective way for improving polyurethane foamed material flame retardant property.Painting polyurethane is sneered in traditional raising The method of foam flame retardant property is to add organic halogen, Phosphorus liquid flame retardant in the feed.Using the quality of Starting Material Polyester as 100 parts Meter, this based flame retardant need 25 parts or more of addition, and the flame retardant property of polyurethane foam obtained can just be met the requirements, but it is excessive Addition polyurethane spray foam raw material can be caused to rise slow, can trickle in spraying process preparation process, cause to be made Polyurethane foamed material lack of homogeneity, and this based flame retardant to polyurethane remote foam burning generate amount of smoke there is no effect, Halogenated flame retardant even generates toxic gas.In addition, organic fire-retardant too high levels, can also be substantially reduced polyurethane foamed material Mechanical property, shorten the service life of material.Inorganic based flame retardant.Have the characteristics that eliminate smoke, it is nontoxic, to spraying polyurethane Foaming raw material rises speed without influence, but usually requires the flame retardant effect that the high amount of addition just possesses requirement.In addition, inorganic resistance It is poor to fire dispersiveness of the agent usually in polyether combined material, can largely be declined using the intensity of foamed material obtained.Therefore, state The flame retardant property research for the hard polyurethane foams that internal and external pin uses construction industry is more.However, oxygen index (OI) reaches fire retardant at present Rank and the good hard polyurethane foams of processing performance it is seldom.
The content of the invention
The problem of for fire retardant rank hard polyurethane foams are lacked at present, the present invention provide a kind of flame retarded rigid polyurethane Foam, good flame retardation effect, heat insulation effect are excellent.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of feedstock composition of flame retarded rigid polyurethane foams, including：
PAPI（Polyphenyl polymethylene isocyanates）And combined polyether, the combined polyether include polyalcohol, foaming agent, catalysis Agent and fire retardant；
The fire retardant is to contain aluminium hydroxide and three（Polyoxygenated alkene）Phosphate or aluminium hydroxide and three（Polyoxygenated alkene） The mixing fire retardant of phosphite ester.
The aluminium hydroxide be nano-aluminum hydroxide, average grain diameter 20-40nm.
Described three（Polyoxygenated alkene）Phosphate or three（Polyoxygenated alkene）The mass ratio of phosphite ester and aluminium hydroxide is 1:3-5。
The foaming agent is selected from HFC-365mfe, HFC-245fa, the two mixing or both the mixing with water respectively.
The polyalcohol is selected from least one of polyether polyol and polyester polyol；Preferably polyether polyol and poly- The mixing of ester polyol.
The polyester polyol be aromatic polyester polyol, the viscosity of the aromatic polyester polyol（25℃）For 300- 3000 mpa.s, hydroxyl value are 100-350 mg KOH/g.
The viscosity of the polyether polyol（25℃）For 3000-12000 mpa.s, hydroxyl value is 200-500 mg KOH/g.
The polyester polyol and the preferred mass ratio of the polyether polyol are 5-12:88-95.
The catalyst is for triethylenediamine with dimethyl cyclohexyl amine according to mass ratio 1.5:（0.5-1）Combination catalysis Agent.
Preferably, the combined polyether includes 100 parts of polyalcohols, 20-70 parts of foaming agents, 1-10 parts of catalyst and 30- 50 parts of fire retardants.
The NCO content of the PAPI is 30-32%, isocyanate index 0.95-1.07, is preferably 0.97-1.03.
The combined polyether also contains foam stabiliser；The foam stabiliser is silanes foam stabiliser；Based on 100 Part polyalcohol, the foam stabiliser dosage are 1-5 parts.
The flame retarded rigid polyurethane that a kind of feedstock composition using any of the above-described hard polyurethane foams produces steeps Foam material.
A kind of application of above-mentioned flame retarded rigid polyurethane foams material in building thermal insulation material.
The present invention has the following advantages：
The present invention provides a kind of feedstock compositions of flame retarded rigid polyurethane foams material, and each ingredient is nontoxic, can be used for Spraying process produces；Reactive flame retardant is employed with inorganic combustion inhibitor to coordinate, obtained hard polyurethane foams oxygen index (OI) height, Good flame retardation effect, and auxiliary material combustion process is nearly free from toxic and harmful gas；Waterproof and heat-insulating property better than in the market other Product, suitable for being used as building thermal insulation material.
Specific embodiment
With reference to embodiment, the present invention will be further described, but the present invention is from the limitation of following embodiments.
Embodiment 1
Each component is prepared respectively according to following formula（Parts by weight）：
（1）Catalyst
1.5 parts of triethylenediamine
1 part of dimethyl cyclohexyl amine
（2）Fire retardant
Three（Polyoxygenated alkene）1 part of phosphate
Aluminium hydroxide（30nm）3 parts
（3）Combine polyalcohol
Aromatic polyester polyol（500 mpa.s of viscosity, 100 mg KOH/g of hydroxyl value）5 parts
Polyether polyol A（3000 mpa.s of viscosity, 270 mg KOH/g of hydroxyl value）27 parts
Polyether polyol B（9000 mpa.s of viscosity, 350 mg KOH/g of hydroxyl value）68 parts
（4）Combined polyether
Combine 100 parts of polyalcohol
35 parts of HFC-365mfe
5 parts of catalyst
30 parts of fire retardant
1 part of foam stabiliser
Preparation method：
Combined polyether is uniformly mixed according to above-mentioned list of ingredients, then adds in PAPI（NCO content is 30%）, refer to isocyanates Number is 0.97, then feeds injection into foaming machine after being uniformly mixed, is sent on the plane materiel at the uniform velocity moved and foams, then will Upper strata plane materiel is closed to foamed plastics.During transmission of foaming, hard polyurethane foams cure in the panel of double-layer pressurizing, Then up to flame retarded rigid polyurethane foams after demoulding.The density of products obtained therefrom is 37kg/m3, thermal conductivity factor 27mW/（mK）, Compressive strength is 260kPa, oxygen index (OI) 30.8.
Embodiment 2
Each component is prepared respectively according to following formula（Parts by weight）：
（1）Catalyst
1.5 parts of triethylenediamine
0.7 part of dimethyl cyclohexyl amine
（2）Fire retardant
Three（Polyoxygenated alkene）1 part of phosphate
Aluminium hydroxide（20nm）4 parts
（3）Combine polyalcohol
Aromatic polyester polyol（1000 mpa.s of viscosity, 200 mg KOH/g of hydroxyl value）10 parts
Polyether polyol A（7000 mpa.s of viscosity, 270 mg KOH/g of hydroxyl value）30 parts
Polyether polyol B（10000 mpa.s of viscosity, 400 mg KOH/g of hydroxyl value）60 parts
（4）Combined polyether
Combine 100 parts of polyalcohol
35 parts of HFC-245fa
5 parts of HFC-365mfe
3 parts of catalyst
40 parts of fire retardant
1 part of foam stabiliser
Preparation method：
Combined polyether is uniformly mixed according to above-mentioned list of ingredients, then adds in PAPI（NCO content is 30%）, refer to isocyanates Number is 1.0, then feeds injection into foaming machine after being uniformly mixed, is sent on the plane materiel at the uniform velocity moved and foams, then will Upper strata plane materiel is closed to foamed plastics.During transmission of foaming, hard polyurethane foams cure in the panel of double-layer pressurizing, Then up to flame retarded rigid polyurethane foams after demoulding.The density of products obtained therefrom is 40kg/m3, thermal conductivity factor 30mW/（mK）, Compressive strength is 290kPa, oxygen index (OI) 31.0.
Embodiment 3
Each component is prepared respectively according to following formula（Parts by weight）：
（1）Catalyst
1.5 parts of triethylenediamine
0.95 part of dimethyl cyclohexyl amine
（2）Fire retardant
Three（Polyoxygenated alkene）1 part of phosphite ester
Aluminium hydroxide（30nm）5 parts
（3）Combine polyalcohol
Aromatic polyester polyol（3000 mpa.s of viscosity, 350 mg KOH/g of hydroxyl value）8 parts
Polyether polyol A（7000 mpa.s of viscosity, 300 mg KOH/g of hydroxyl value）32 parts
Polyether polyol B（12000 mpa.s of viscosity, 500 mg KOH/g of hydroxyl value）60 parts
（4）Combined polyether
Combine 100 parts of polyalcohol
35 parts of HFC-365mfe
3 parts of water
2 parts of catalyst
50 parts of fire retardant
2 parts of foam stabiliser
Preparation method：
Combined polyether is uniformly mixed according to above-mentioned list of ingredients, then adds in PAPI（NCO content is 30%）, refer to isocyanates Number is 1.03, then feeds injection into foaming machine after being uniformly mixed, is sent on the plane materiel at the uniform velocity moved and foams, then will Upper strata plane materiel is closed to foamed plastics.During transmission of foaming, hard polyurethane foams cure in the panel of double-layer pressurizing, Then up to flame retarded rigid polyurethane foams after demoulding.The density of products obtained therefrom is 42kg/m3, thermal conductivity factor 30mW/（mK）, Compressive strength is 310kPa, oxygen index (OI) 32.3.

Claims (10)

1. a kind of feedstock composition of flame retarded rigid polyurethane foams, which is characterized in that including：PAPI and combined polyether, it is described Combined polyether includes polyalcohol, foaming agent, catalyst and fire retardant；
The fire retardant is to contain aluminium hydroxide and three（Polyoxygenated alkene）Phosphate or aluminium hydroxide and three（Polyoxygenated alkene） The mixing fire retardant of phosphite ester.
2. feedstock composition according to claim 1, which is characterized in that three（Polyoxygenated alkene）Phosphate or three（Polyoxy Change alkene）The mass ratio of phosphite ester and aluminium hydroxide is 1:3-5.
3. feedstock composition according to claim 1, which is characterized in that foaming agent is selected from HFC-365mfe, HFC-245fa Or both the mixing with water respectively.
4. feedstock composition according to claim 1, which is characterized in that the polyalcohol is selected from polyether polyol and gathers At least one of ester polyol；The polyester polyol be aromatic polyester polyol, the viscosity of the aromatic polyester polyol （25℃）For 300-3000 mpa.s, hydroxyl value is 100-350 mg KOH/g；The viscosity of the polyether polyol（25℃）For 3000-12000 mpa.s, hydroxyl value are 200-400 mg KOH/g.
5. feedstock composition according to claim 4, which is characterized in that the polyalcohol is more for polyether polyol and polyester The mass ratio of the mixing of first alcohol, the polyester polyol and the polyether polyol is 5-12:88-95.
6. feedstock composition according to claim 1, which is characterized in that catalyst is triethylenediamine and diformazan basic ring Hexylamine is according to mass ratio 1.5:（0.5-1）Combination catalyst.
7. feedstock composition according to claim 1, which is characterized in that the combined polyether include 100 parts of polyalcohols, 40-70 parts of foaming agents, 1-10 parts of catalyst and 30-50 parts of fire retardants；The NCO content of the PAPI be 30-32%, isocyanates Index is 0.95-1.07.
8. feedstock composition according to claim 1, which is characterized in that the combined polyether also contains foam stabiliser； The foam stabiliser is silanes foam stabiliser；Based on 100 parts of polyalcohols, the foam stabiliser dosage is 1-5 parts.
9. the flame retarded rigid that a kind of feedstock composition using any hard polyurethane foams of claim 1-8 produces gathers Urethane foamed material.
10. a kind of application of flame retarded rigid polyurethane foams material as claimed in claim 9 in building thermal insulation material.
CN201711316537.9A 2017-12-12 2017-12-12 A kind of flame retarded rigid polyurethane foams feedstock composition Pending CN108102346A (en)

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CN106317378A (en) * 2016-08-31 2017-01-11 四川金地亚美科技有限公司 Production technology of foamed heat insulation material with high flame retardance
CN109749039A (en) * 2018-12-14 2019-05-14 上海东大聚氨酯有限公司 Flame retardant type water-heater water tank combined polyether, flame retardant polyurethane insulating foam and preparation method thereof
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Publication number Priority date Publication date Assignee Title
CN106317378A (en) * 2016-08-31 2017-01-11 四川金地亚美科技有限公司 Production technology of foamed heat insulation material with high flame retardance
CN109749039A (en) * 2018-12-14 2019-05-14 上海东大聚氨酯有限公司 Flame retardant type water-heater water tank combined polyether, flame retardant polyurethane insulating foam and preparation method thereof
CN113024766A (en) * 2019-12-24 2021-06-25 比亚迪股份有限公司 Polyurethane composition and polyurethane foam

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Application publication date: 20180601