CN108912294A - A kind of new polyurethane insulation board - Google Patents
A kind of new polyurethane insulation board Download PDFInfo
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- CN108912294A CN108912294A CN201810604535.8A CN201810604535A CN108912294A CN 108912294 A CN108912294 A CN 108912294A CN 201810604535 A CN201810604535 A CN 201810604535A CN 108912294 A CN108912294 A CN 108912294A
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- 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
- C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more polyetherpolyols having at least three hydroxy groups
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- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/095—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyurethanes
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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
- C08J9/0014—Use of organic additives
- C08J9/0038—Use of organic additives containing phosphorus
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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
- C08J9/0066—Use of inorganic compounding ingredients
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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
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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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
- C08J9/06—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 chemical blowing agent
- C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- 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
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- 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
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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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
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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
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to thermal insulation material technical fields, and in particular to a kind of new polyurethane insulation board.Insulation board includes upper and lower structure sheaf and intermediate polyurethane insulation coating, and the upper and lower surfaces of polyurethane insulation coating have tinfoil paper layer by adhering polyurethane adhesive;Polyurethane insulation coating with a thickness of 15-20mm, the thickness of upper and lower structure sheaf is 1.5-2mm;Wherein, according to mass fraction, the component of the polyurethane insulation coating includes:Methyl diphenylene diisocyanate, multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and catalyst.Wherein, foam stabiliser is non-hydrolytic silicon-carbon class surfactant, and foaming agent is inclined nitrogen diformamide or azodicarbonamide;Fire retardant be dimethyl methyl phosphonate and triguaiacyl phosphate etc. quality compare mixture.The heat resistance and flame retardant property of the type insulation board are very outstanding, and have better shock resistance, it is not easy to be broken.
Description
Technical field
The present invention relates to thermal insulation material technical fields, and in particular to a kind of new polyurethane insulation board.
Background technique
Insulation board is a kind of construction material for building energy conservation heat insulation engineering construction, which can significantly improve building
Energy-conserving and environment-protective performance, the external use for building thermal insulation material had very long history, developed porcelain tendre thermal insulating material
Material, aluminum silicate insulation material, phenolic foam material, polyurethane foamed material, glue powder polyphenyl particle, rock wool, foamed cement etc. are more
The organic and inorganic heat insulation material of kind.Wherein, thermal insulation material used in China's building process of construction is mainly inorganic heat insulation material,
Inorganic heat insulation material has production cost low, and material anti-aging property is outstanding, the small advantage of thermal deformation degree, but inorganic heat preservation
The impact resistance of material is poor, is easy cracking in a compressed state, and the thermal insulation material after cracking is easy to fall off, and loses practical valence
Value.
Foreign countries include phenolic-aldehyde heat-insulation board, XPS insulation board and polyurethane thermal insulation board etc. using more insulation board material;Phenolic aldehyde
Insulation board is to be uniformly mixed a certain proportion of resin, foaming agent, surfactant become A material, then utilize phenolic foam machine
A material and curing agent B material high-speed stirred are entered into lamination assembly line foaming a period of time after mixing, obtain phenol after curing molding
Aldehyde foam.Phenolic resin plate surface intensity is very low, is unfavorable for guaranteeing the reliability of its bonding.And easy dusting of phenolic board etc.,
It is unfavorable for the crack resistance of external insulation system.High level is according to anchor bolt, it will the globality for destroying phenolic foam board is not found at present
Preferable solution.XPS plate is to use the molding white polyethylene plate of extrusion molding, is cracked in completed exterior insulation work
Phenomenon is commonplace, cracks and the degree that falls off is also more serious.Although extruded sheet has good thermal-insulating waterproof, due to it
Intensity high deformation stress is big, surface is smooth, hydrophobic, it is difficult to which the adhesive of absorbent binder insulation board, the stickup with wall are adhered to
Property is poor.
It is catalyst that polyurethane thermal insulation board, which is to amine, and combined polyether glycol mixes in certain proportion with isocyanates
Made of conjunction.Due to the birth defect of conventional polyurethanes, cause anyway to change amount of flame-retardant agent, the equal difficulty of flame retardant property reaches
To higher level, in addition, polyurethane thermal insulation board also has relatively poor heat resistance and tensile strength, these are the disadvantage is that restrict
The main problem of conventional polyurethanes insulation board application.
Patent publication No. CN103321308A discloses a kind of special high temperature resistant polyurethane thermal insulation board, and this insulation board passes through outer
The protective layer of layer improves insulation board heat resistance, but the heat resistance of internal polyurethane foam is still poor.Patent is public
The number of opening CN104213649A discloses a kind of polyurethane composite heat-conservation board and preparation method thereof, and the type insulation board is also having the same
Problem.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of new polyurethane insulation board, the type insulation boards
Heat resistance and flame retardant property it is very outstanding, and have better shock resistance, it is not easy to be broken.
A kind of new polyurethane insulation board, insulation board include upper and lower structure sheaf and intermediate polyurethane insulation coating, and polyurethane is protected
The upper and lower surface of warm layer has tinfoil paper layer by adhering polyurethane adhesive;Polyurethane insulation coating with a thickness of 15-20mm, above and below
The thickness of structure sheaf is 1.5-2mm;Wherein, according to mass fraction, the component of the polyurethane insulation coating includes:Diphenylmethyl
100-120 parts of alkane diisocyanate, 90-100 parts of multicomponent polyether polyol, 1.5-3.2 parts of foam stabiliser, foaming agent 10-
18 parts, 8-13 parts of fire retardant, 15-20 parts of modified polyimide, 0.6-1.4 parts of catalyst.
Preferably, according to mass fraction, the component of polyurethane insulation coating includes:Methyl diphenylene diisocyanate 105-
115 parts, 94-97 parts of multicomponent polyether polyol, 2.1-2.5 parts of foam stabiliser, 12-16 parts of foaming agent, fire retardant 10-12
Part, 16-18 parts of modified polyimide, 0.8-1.2 parts of catalyst.
It is further preferred that according to mass fraction, the component of polyurethane insulation coating includes:Methyl diphenylene diisocyanate
110 parts, 95 parts of multicomponent polyether polyol, 2.3 parts of foam stabiliser, 14 parts of foaming agent, 11 parts of fire retardant, modified polyimide
17 parts, 0.9 part of catalyst.
In the present invention, multicomponent polyether polyol contains 5 degrees of functionality, and molecular weight is pure and mild 4 official of polyether polyols of 600-700
Energy degree, molecular weight are the polyether polyol of 250-350;The mass ratio of the two is 3:1.
In the present invention, the preparation method of modified polyimide includes the following steps:
According to mass fraction, by 70-75 parts of polyimides, 2-3 parts of n-BMAs, 0.2-0.7 parts of graphenes and 1-
1.4 parts of 3- r-chloropropyl trimethoxyl silanes are added in reaction kettle, and with 70-75 DEG C of temperature, the revolving speed of 200-250r/min is stirred
20-25min is mixed and reacted, required modified polyimide is obtained.
Preferably, foam stabiliser is non-hydrolytic silicon-carbon class surfactant, and foaming agent is azodicarbonamide or inclined nitrogen
Diformamide.
Foam stabiliser can reduce the surface tension of urethane raw mixture, in foaming process, keep stomata fine and closely woven
Uniformly, when system is in the low-viscosity stage, it stablizes hole wall, allows stomata that can grow into the thickness for being suitable for aperture, for most
Aperture creates conditions afterwards.
Preferably, fire retardant be dimethyl methyl phosphonate and triguaiacyl phosphate etc. quality compare mixture.
Using the fire retardant of the proportion, optimal flame retardant property can be played in polyurethane foam, and will not be to original
The foaming process of material impacts.
Preferably, catalyst is one of tertiary amine, potassium oleate and stannous octoate.
Catalyst is used to carry out chemical reaction in the pure and mild methyl diphenylene diisocyanate of polyether polyols to be to provide catalysis work
With quickening reaction rate.
The preparation method of polyurethane insulation coating provided by the invention includes the following steps:
According to mass fraction, by multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and urge
Agent is added in reaction kettle, stirs 1.5-2h with 25-30 DEG C of temperature, product is then stood 8-10h, obtains required component
A;Component A is added in the head tank A of tinuous production, while methyl diphenylene diisocyanate is added into head tank B,
It opens mobile casting machine to be produced, component A and methyl diphenylene diisocyanate are raw after mixing sprays in mobile casting machine
Polyurethane thermal insulation board is cut into corresponding size by generating polyurethane insulation board, in polyurethane thermal insulation board surface mount tinfoil paper layer, is obtained
Required polyurethane heat-insulation layer material.
Wherein, structure sheaf is prepared by aluminate cement sill, and structure sheaf is protected by asphalt adhesive and polyurethane
Warm layer bonding.
The present invention has following beneficial effect:
The new polyurethane insulation board is the structure sheaf of aluminosilicate preparation using composite layered structure, outer layer, and inside is
Polyurethane insulation coating, aluminosilicate are heat resistance cement-based material, and flame retardant property and high temperature resistance are very prominent, can be internal
The heat preservation layer material in portion provides protection, to improve the flame retardant property and shock resistance of the insulation board.In order to further increase
The protective performance of outer structural layer, keeps the temperature layer material and structural material also added tinfoil paper layer.
Wherein, modified polyimide is added in polyurethane insulation coating to promote polyurethane foam high temperature resistance, polyamides
The heat resistance of imines is very prominent, in order to enable polyimides is preferably compatible with polyurethane foam, the present invention is to polyamides Asia
Amine is modified processing.Type polyurethane film high temperature resistance after modified addition improves 15-20%, the heat-resisting temperature of highest
Degree reaches 210-220 DEG C.
Structure sheaf and tinfoil paper layer outside the type polyurethane insulation board are incombustible material, and internal polyurethane foam also carries out
Anti-flammability is promoted, wherein be used in polyurethane foam raw material dimethyl methyl phosphonate and triguaiacyl phosphate constitute have agent resistance
Agent is fired, the fire retardant not only good flame retardation effect can also be stabilized in polyurethane matrix, improve polyurethane insulation coating
Chemical stability and anti-aging property.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Embodiment 1
A kind of new polyurethane insulation board, insulation board include upper and lower structure sheaf and intermediate polyurethane insulation coating, and polyurethane is protected
The upper and lower surface of warm layer has tinfoil paper layer by adhering polyurethane adhesive;Polyurethane insulation coating with a thickness of 15mm, upper and lower structure
The thickness of layer is 1.5mm;Wherein, according to mass fraction, the component of the polyurethane insulation coating includes:Diphenyl methane two is different
It is 100 parts of cyanate, 90 parts of multicomponent polyether polyol, 1.5 parts of foam stabiliser, 10 parts of foaming agent, 8 parts of fire retardant, modified poly-
15 parts of acid imide, 0.6 part of catalyst.
In the present embodiment, multicomponent polyether polyol contains 5 degrees of functionality, and molecular weight is the polyether polyols pure and mild 4 of 600-700
Degree of functionality, molecular weight are the polyether polyol of 250-350;The mass ratio of the two is 3:1.
The preparation method of modified polyimide includes the following steps:
According to mass fraction, by 70 parts of polyimides, 2 parts of n-BMAs, 0.2 part of graphene and 1 part of 3- chloropropyl
Trimethoxy silane is added in reaction kettle, and with 70 DEG C of temperature, the revolving speed of 200r/min stirs and react 20min, obtains institute
Need modified polyimide.
Foam stabiliser is non-hydrolytic silicon-carbon class surfactant, and foaming agent is azodicarbonamide.
Fire retardant be dimethyl methyl phosphonate and triguaiacyl phosphate etc. quality compare mixture.
Catalyst is tertiary amine.
The preparation method of polyurethane insulation coating provided in this embodiment includes the following steps:
According to mass fraction, by multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and urge
Agent is added in reaction kettle, stirs 1.5h with 25 DEG C of temperature, product is then stood 8h, obtains required component A;By component
A is added in the head tank A of tinuous production, while methyl diphenylene diisocyanate being added into head tank B, opens movement
Casting machine is produced, and component A and methyl diphenylene diisocyanate generate polyurethane after mixing sprays in mobile casting machine
Polyurethane thermal insulation board is cut into corresponding size by insulation board, in polyurethane thermal insulation board surface mount tinfoil paper layer, poly- ammonia needed for obtaining
Ester keeps the temperature layer material.
Wherein, structure sheaf is prepared by aluminate cement sill, and structure sheaf is protected by asphalt adhesive and polyurethane
Warm layer bonding.
Embodiment 2
A kind of new polyurethane insulation board, insulation board include upper and lower structure sheaf and intermediate polyurethane insulation coating, and polyurethane is protected
The upper and lower surface of warm layer has tinfoil paper layer by adhering polyurethane adhesive;Polyurethane insulation coating with a thickness of 20mm, upper and lower structure
The thickness of layer is 2mm;Wherein, according to mass fraction, the component of the polyurethane insulation coating includes:Two isocyanide of diphenyl methane
It is 120 parts of acid esters, 100 parts of multicomponent polyether polyol, 3.2 parts of foam stabiliser, 18 parts of foaming agent, 13 parts of fire retardant, modified poly-
20 parts of acid imide, 1.4 parts of catalyst.
In the present embodiment, multicomponent polyether polyol contains 5 degrees of functionality, and molecular weight is the polyether polyols pure and mild 4 of 600-700
Degree of functionality, molecular weight are the polyether polyol of 250-350;The mass ratio of the two is 3:1.
The preparation method of modified polyimide includes the following steps:
According to mass fraction, by 75 parts of polyimides, 3 parts of n-BMAs, 0.7 part of graphene and 1.4 parts of 3- chlorine third
Base trimethoxy silane is added in reaction kettle, and with 75 DEG C of temperature, the revolving speed of 250r/min stirs and react 25min, is obtained
Required modified polyimide.
Foam stabiliser is non-hydrolytic silicon-carbon class surfactant, and foaming agent is inclined nitrogen diformamide.
Fire retardant be dimethyl methyl phosphonate and triguaiacyl phosphate etc. quality compare mixture.
Catalyst is potassium oleate.
The preparation method of polyurethane insulation coating provided in this embodiment includes the following steps:
According to mass fraction, by multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and urge
Agent is added in reaction kettle, stirs 2h with 30 DEG C of temperature, product is then stood 10h, obtains required component A;By component A
It is added in the head tank A of tinuous production, while methyl diphenylene diisocyanate being added into head tank B, open movement
Casting machine is produced, and component A and methyl diphenylene diisocyanate generate polyurethane after mixing sprays in mobile casting machine
Polyurethane thermal insulation board is cut into corresponding size by insulation board, in polyurethane thermal insulation board surface mount tinfoil paper layer, poly- ammonia needed for obtaining
Ester keeps the temperature layer material.
Wherein, structure sheaf is prepared by aluminate cement sill, and structure sheaf is protected by asphalt adhesive and polyurethane
Warm layer bonding.
Embodiment 3
A kind of new polyurethane insulation board, insulation board include upper and lower structure sheaf and intermediate polyurethane insulation coating, and polyurethane is protected
The upper and lower surface of warm layer has tinfoil paper layer by adhering polyurethane adhesive;Polyurethane insulation coating with a thickness of 18mm, upper and lower structure
The thickness of layer is 2mm;Wherein, according to mass fraction, the component of the polyurethane insulation coating includes:Two isocyanide of diphenyl methane
110 parts of acid esters, 95 parts of multicomponent polyether polyol, 2 parts of foam stabiliser, 16 parts of foaming agent, 10 parts of fire retardant, modified polyamides is sub-
18 parts of amine, 0.9 part of catalyst.
In the present embodiment, multicomponent polyether polyol contains 5 degrees of functionality, and molecular weight is the polyether polyols pure and mild 4 of 600-700
Degree of functionality, molecular weight are the polyether polyol of 250-350;The mass ratio of the two is 3:1.
The preparation method of modified polyimide includes the following steps:
According to mass fraction, by 73 parts of polyimides, 2.5 parts of n-BMAs, 0.5 part of graphene and 1.3 parts of 3- chlorine
Propyl trimethoxy silicane is added in reaction kettle, and with 73 DEG C of temperature, the revolving speed of 230r/min stirs and react 22min, is obtained
To required modified polyimide.
Foam stabiliser is non-hydrolytic silicon-carbon class surfactant, and foaming agent is azodicarbonamide.
Fire retardant be dimethyl methyl phosphonate and triguaiacyl phosphate etc. quality compare mixture.
Catalyst is stannous octoate.
The preparation method of polyurethane insulation coating provided in this embodiment includes the following steps:
According to mass fraction, by multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and urge
Agent is added in reaction kettle, stirs 1.8h with 27 DEG C of temperature, product is then stood 9h, obtains required component A;By component
A is added in the head tank A of tinuous production, while methyl diphenylene diisocyanate being added into head tank B, opens movement
Casting machine is produced, and component A and methyl diphenylene diisocyanate generate polyurethane after mixing sprays in mobile casting machine
Polyurethane thermal insulation board is cut into corresponding size by insulation board, in polyurethane thermal insulation board surface mount tinfoil paper layer, poly- ammonia needed for obtaining
Ester keeps the temperature layer material.
Wherein, structure sheaf is prepared by aluminate cement sill, and structure sheaf is protected by asphalt adhesive and polyurethane
Warm layer bonding.
Performance test
According to GB 50404-2007《Hard-foam polyurethane thermal-insulating waterproof engineering legislation》In test method, to the present embodiment
Compression strength, thermal coefficient, the dimensional stability of middle insulation board, flame retardant property and heat resisting temperature performance are tested, obtain as
Lower test data:
Table 1:The performance test results of the present embodiment
Test item | Standard | Embodiment 1 | Embodiment 2 | Embodiment 3 |
Compression strength kPa | ≥180 kPa | 215 kPa | 223 kPa | 228 kPa |
Thermal coefficient W/mk | ≤0.022 | 0.021 W/mk | 0.021 W/mk | 0.020 W/mk |
Heat resistance DEG C | ≥95 | 115℃ | 120℃ | 123℃ |
Flame retardant property | Horizontal firing method≤50mm | 44 mm | 40 mm | 38 mm |
Dimensional stability % | ≤1.5 | 1.3% | 1.2% | 1.1% |
Test result is found in analysis, new polyurethane insulation board provided in this embodiment, thermal insulation property and stability energy
The requirement being up to state standards, and there is outstanding fire-retardant and high temperature resistance, the compressive resistance of material is high, impact resistance
It is outstanding.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of new polyurethane insulation board, it is characterised in that:The insulation board includes upper and lower structure sheaf and intermediate poly- ammonia
The upper and lower surfaces of ester insulating layer, polyurethane insulation coating have tinfoil paper layer by adhering polyurethane adhesive;The thickness of polyurethane insulation coating
Degree is 15-20mm, and the thickness of upper and lower structure sheaf is 1.5-2mm;Wherein, according to mass fraction, the polyurethane insulation coating
Component includes:100-120 parts of methyl diphenylene diisocyanate, 90-100 parts of multicomponent polyether polyol, foam stabiliser
1.5-3.2 parts, 10-18 parts of foaming agent, 8-13 parts of fire retardant, 15-20 parts of modified polyimide, 0.6-1.4 parts of catalyst.
2. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:It is described poly- according to mass fraction
The component of urethane insulating layer includes:105-115 parts of methyl diphenylene diisocyanate, 94-97 parts of multicomponent polyether polyol, bubble
2.1-2.5 parts of foam stabilizers, 12-16 parts of foaming agent, 10-12 parts of fire retardant, 16-18 parts of modified polyimide, catalyst 0.8-
1.2 part.
3. a kind of new polyurethane insulation board according to claim 2, it is characterised in that:It is described poly- according to mass fraction
The component of urethane insulating layer includes:110 parts of methyl diphenylene diisocyanate, 95 parts of multicomponent polyether polyol, foam is stablized
2.3 parts of agent, 14 parts of foaming agent, 11 parts of fire retardant, 17 parts of modified polyimide, 0.9 part of catalyst.
4. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The multicomponent polyether polyol
Containing 5 degrees of functionality, molecular weight is pure and mild 4 degree of functionality of polyether polyols of 600-700, and molecular weight is the polyether polyol of 250-350;
The mass ratio of the two is 3:1.
5. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The system of the modified polyimide
Preparation Method includes the following steps:
According to mass fraction, by 70-75 parts of polyimides, 2-3 parts of n-BMAs, 0.2-0.7 parts of graphenes and 1-
1.4 parts of 3- r-chloropropyl trimethoxyl silanes are added in reaction kettle, and with 70-75 DEG C of temperature, the revolving speed of 200-250r/min is stirred
20-25min is mixed and reacted, required modified polyimide is obtained.
6. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The foam stabiliser is non-aqueous
Silicon-carbon class surfactant is solved, foaming agent is azodicarbonamide or inclined nitrogen diformamide.
7. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The fire retardant is methylphosphonic acid
Dimethyl ester and triguaiacyl phosphate etc. quality compare mixture.
8. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The catalyst is tertiary amine, oil
One of sour potassium and stannous octoate.
9. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The system of the polyurethane insulation coating
Preparation Method includes the following steps:
According to mass fraction, by multicomponent polyether polyol, foam stabiliser, foaming agent, fire retardant, modified polyimide and urge
Agent is added in reaction kettle, stirs 1.5-2h with 25-30 DEG C of temperature, product is then stood 8-10h, obtains required component
A;Component A is added in the head tank A of tinuous production, while methyl diphenylene diisocyanate is added into head tank B,
It opens mobile casting machine to be produced, component A and methyl diphenylene diisocyanate are raw after mixing sprays in mobile casting machine
Polyurethane thermal insulation board is cut into corresponding size by generating polyurethane insulation board, in polyurethane thermal insulation board surface mount tinfoil paper layer, is obtained
Required polyurethane heat-insulation layer material.
10. a kind of new polyurethane insulation board according to claim 1, it is characterised in that:The structure sheaf is by aluminate
Cement-based material is prepared, and structure sheaf is Nian Jie with polyurethane insulation coating by asphalt adhesive.
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CN201810604535.8A CN108912294A (en) | 2018-06-13 | 2018-06-13 | A kind of new polyurethane insulation board |
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CN201810604535.8A CN108912294A (en) | 2018-06-13 | 2018-06-13 | A kind of new polyurethane insulation board |
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CN109986849A (en) * | 2019-03-03 | 2019-07-09 | 广州立泰新材料科技有限公司 | A kind of flame retardant polyurethane insulation board and preparation method thereof |
CN110016113A (en) * | 2019-03-02 | 2019-07-16 | 广州立泰新材料科技有限公司 | A kind of fire-retardant building polyurethane foamed material |
CN111267712A (en) * | 2020-02-24 | 2020-06-12 | 中铝材料应用研究院有限公司 | Refrigerator car |
CN114940005A (en) * | 2022-07-04 | 2022-08-26 | 张家港飞腾复合新材料股份有限公司 | High-heat-insulation heat-preservation composite board and production process thereof |
CN114940005B (en) * | 2022-07-04 | 2024-06-04 | 张家港飞腾复合新材料股份有限公司 | High-heat-insulation heat-preservation composite board and production process thereof |
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CN114940005B (en) * | 2022-07-04 | 2024-06-04 | 张家港飞腾复合新材料股份有限公司 | High-heat-insulation heat-preservation composite board and production process thereof |
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