CN108621497A - A kind of A grades of flame-retardant aluminium foil bubble insulating material and preparation method thereof - Google Patents

A kind of A grades of flame-retardant aluminium foil bubble insulating material and preparation method thereof Download PDF

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CN108621497A
CN108621497A CN201810479751.4A CN201810479751A CN108621497A CN 108621497 A CN108621497 A CN 108621497A CN 201810479751 A CN201810479751 A CN 201810479751A CN 108621497 A CN108621497 A CN 108621497A
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parts
retardant
bubble
layer
aluminium foil
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CN108621497B (en
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张道静
裴作清
金伟浩
李守元
高勇
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Zhejiang PENGYUAN New Material Technology Group Co., Ltd
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Zhejiang Pengyuan New Materials Ltd By Share Ltd
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
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    • 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
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • C08G18/4833—Polyethers containing oxyethylene units
    • 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
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
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    • B32B2255/00—Coating on the layer surface
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2266/025—Polyolefin
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    • 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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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
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    • B32B2419/00—Buildings or parts thereof
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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Abstract

The present invention provides a kind of Nano-composite thermal insulation materials and preparation method thereof, which is characterized in that the side of the fire-retardant bubble layer is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer is made of the hexagon bubble structure of honeycomb arrangement, and the fire-retardant bubble layer includes 50 85 parts by weight low density polyethylene (LDPE)s and 20 60 parts by weight compound flame retardants.Above-mentioned compound flame retardant includes the ingredient of following parts by weight：10 12 parts of nano aluminium oxide, 16 18 parts of silicon nitride, 20 30 parts, 10 30 parts ethylene vinyl acetate polymers of phenolic resin, 28 parts of silane coupling agents.The present invention reduces air circulation path, reduces oxygen content by the hexagon bubble and compound flame retardant of honeycomb arrangement, reduces the fuel value of aluminum foil gas bubble heat-barrier material.

Description

A kind of A grades of flame-retardant aluminium foil bubble insulating material and preparation method thereof
【Technical field】
The present invention relates to field of heat insulating materials more particularly to a kind of A grades of flame-retardant aluminium foil bubble insulating material and preparation method thereof.
【Background technology】
Industrial building and the energy for maintaining indoor comfortable temperature to be consumed account for 30% or more of the annual total energy consumption in the world, heat-insulated material The use of material can improve the capacity usage ratio of building, reduce energy consumption.However, the thermal conductivity of thermal insulation inorganic material is generally inclined Height, traditional organic heat-barrier material is generally inflammable, and the use of organic fire-retardant can then cause damages to environment and human health. In recent years, had a lot of due to the fire incident that thermal insulation material fire protecting performance is low and is led to, such as Beijing in 2009 centre Depending on building fire.Therefore, importance of the good thermal insulation material of fire protecting performance in modern architecture, which embodies, is more and more obvious, such as What further improves the combustibility of thermal insulation material, reaches A grades of flame retardant property, has become research hotspot.
【Invention content】
One of the objects of the present invention is to provide a kind of A grades of flame-retardant aluminium foil bubble insulating materials, pass through six sides of honeycomb arrangement Shape bubble and compound flame retardant reduce air circulation path, reduce oxygen content, reduce aluminum foil gas bubble heat-barrier material Fuel value.
Another object of the present invention is to provide the preparation methods of above-mentioned A grades of flame-retardant aluminium foil bubble insulating material.
The technical scheme is that：
A kind of A grades of flame-retardant aluminium foil bubble insulating material, including fire-retardant bubble layer, which is characterized in that the one of the fire-retardant bubble layer Side is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer by honeycomb arrangement hexagon bubble Structure composition, the fire-retardant bubble layer include 50-85 parts by weight low density polyethylene (LDPE) and 20-60 parts by weight compound flame retardants.Phase For vertically and horizontally arranged bubble layer, the hexagon bubble of honeycomb arrangement reduces the path of air circulation, can improve The flame retardant property of material, while by compound flame retardant, the fuel value of material can be further decreased.
Further, the nitrogen of purity >=95% is full of inside the bubble of above-mentioned fire-retardant bubble layer.It is non-combustible inside bubble Not combustion-supporting nitrogen replaces air, can further decrease the fuel value of material, and preparation process is simple, cost is not high.
Further, above-mentioned compound flame retardant includes the ingredient of following parts by weight：10-12 parts of nano aluminium oxide, nitridation 16-18 parts of silicon, 20-30 parts, 10-30 parts ethylene-vinyl acetate polymer of phenolic resin, 2-8 parts of silane coupling agents.Aluminium oxide It is excellent heat-isolating flame retardant material with silicon nitride, and the bond energy of Si-N keys and Al-O keys is close, bond distance is close, it at high temperature can shape At the inorganic three-dimensional net structure of stable structure；Likewise, phenolic resin can also form organic the three of stable structure at high temperature Tie up network structure；Both network structures are mutual indepedent, and wrapped around one another, substantially increase the flame retardant property of material, meanwhile, lead to The connection function of phenolic resin is crossed, can solve the problems, such as that inorganic particle can not form tight structure with the co-melting combination of polyethylene, It solves the problems, such as when burning that inorganic particle is easy to fall off and loses fire retardation；Ethylene-vinyl acetate polymer and silane are even While connection agent makes each ingredient effectively mix, the influence that the toughness that inorganic constituents is brought reduces is reduced.
Further, the grain size of above-mentioned silicon nitride is the α-Si of the mesh of 500 mesh ~ 10003N4, the α-Si of the size3N4Silicon nitride Reactivity is high, and oxygen content is also relatively low, and often oxygen content is high for the too small silicon nitride of grain size, impact effect.
Further, above-mentioned fire-retardant bubble layer is prepared by the following method：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment；It is to realize the cellular row of nitrogen injection by simple step The hexagon bubble layer of row.
Further, above-mentioned aerogel layer is made of the component comprising following parts by weight：5-20 parts of silica gas Gel, 20-30 part propylene oxide, 80-130 parts of acetic acid, 50-70 parts of Macrogol 600s, 10-30 parts of formamides, 20-30 parts of first Phenylene diisocyanate tripolymer, 10-15 part isophorone diisocyanate trimer.The above component can make silica airsetting Glue is combined closely in aluminium foil surface, and with 3M adhesive tape test peel strengths, no micro mist is fallen.
The preparation method of above-mentioned A grades of flame-retardant aluminium foil bubble insulating material, which is characterized in that comprise the steps of：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
c）20-30 parts of propylene oxide, 80-130 parts of acetic acid, 50-70 parts of Macrogol 600s, 10-30 parts of formamides are high Fast micro mist blender stirs 5-10 minutes, adjusts solvent temperature 5-8 degree；5-20 parts of aerosil is added, adjusts solvent Temperature is 30 DEG C -40 DEG C, continues stirring 40-60 minutes；20-30 parts of toluene diisocyanate trimers, 10-15 parts of different Buddhists are added That ketone diisocyanate trimer, continues stirring 5-10 minutes；Then air current classifying collects the powder by 8000 mesh filter screens Body；The rotating speed of the high speed micro mist blender is 800-1000 revs/min；
D) aerogel layer and aluminium foil layer is compound：By step c）After the powder being collected into is by compressed air, filtering, drying, into Enter 800-1000 DEG C of high-temperature gasification room, forming supersonic airstream through nozzle is injected into one side surface of aluminium foil, is cured at 50-70 DEG C, Form the aluminium foil layer that side is attached with aerogel layer.
E) bonding of multilayered structure：Flame-retardant adhesive is uniformly coated on to the surface of fire-retardant bubble layer, then not with aluminium foil Adhere to the side surface fitting of aerogel layer, compress, fitting roll temperature is 80-100 DEG C, and pressure is 100-150 megapascal, has been bonded It is cured 72-80 hours at 30-45 DEG C after finishing.
The present invention has technique effect beneficial below：
1）By the hexagon bubble and compound flame retardant of honeycomb arrangement, reduces air circulation path, reduce oxygen Content, comprehensive fire protecting performance have reached standard GB/T/T8624-2012《Construction material and product burns performance》A2 grades；
2）Pass through mutual indepedent and the wrapped around one another inorganic three-dimensional net structures of Si-Al-O-N and the organic three-dimensional network of phenolic resin Structure substantially increases the flame retardant property of material, meanwhile, by the connection function of phenolic resin, can solve inorganic particle without The problem of method forms tight structure with the co-melting combination of polyethylene, inorganic particle, which is easy to fall off, when solving burning loses fire retardation The problem of, fuel value≤2.3MJ/kg of aluminum foil gas bubble heat-barrier material;
3）Being used in compounding for ethylene-vinyl acetate polymer and silane coupling agent and other compositions, makes each ingredient effectively mix While, reduce the harmful effect that the toughness that inorganic constituents is brought reduces；
4）Aerosil is used with additive compound, and aerosil can be made to combine closely in aluminium foil surface, The excellent heat-proof quality of silica and high porosity is utilized, also solves silica in drying process and is easy cracking The problem of；
5）The preparation process of the present invention is relatively easy, can effectively improve the heat-insulating flame-retardant performance of material, while keeping lower Production cost.
【Specific implementation mode】
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment provided below be not to limit the range that is covered of the present invention, described step nor with Sequence is executed to limit its.Those skilled in the art are the present invention in conjunction with existing common knowledge conspicuously improved, also fall Enter the present invention claims protection domain within.
Embodiment 1
A kind of A grades of flame-retardant aluminium foil bubble insulating material, including fire-retardant bubble layer, which is characterized in that the one of the fire-retardant bubble layer Side is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer is by the internal cellular row for being full of nitrogen The hexagon bubble structure of row forms, and the fire-retardant bubble layer includes 80 parts by weight low density polyethylene (LDPE)s and the compounding resistance of 40 parts by weight Fire agent.
The wherein described compound flame retardant includes the ingredient of following parts by weight：α-nitridation of 11 parts of nano aluminium oxide, 600 mesh 17 parts of silicon, 25 parts of phenolic resin, 15 parts of ethylene-vinyl acetate polymer, 6 parts of silane coupling agent.The aerogel layer is by wrapping Component containing following parts by weight is made：10 parts of aerosil, 25 parts of propylene oxide, 100 parts of acetic acid, 60 parts of poly- second 600,20 parts of formamides of glycol, 25 parts of toluene diisocyanate trimers, 12 parts of isophorone diisocyanate trimers.
The preparation method of above-mentioned A grades of flame-retardant aluminium foil bubble insulating material, which is characterized in that comprise the steps of：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
c）Propylene oxide, acetic acid, Macrogol 600, formamide high speed micro mist blender are stirred 5-10 minutes, adjusted Solvent temperature 5-8 degree；Aerosil is added, it is 30 DEG C -40 DEG C to adjust solvent temperature, continues stirring 40-60 minutes；Add Enter toluene diisocyanate trimer, isophorone diisocyanate trimer, continues stirring 5-10 minutes；Then air-flow point Grade collects the powder by 8000 mesh filter screens；The rotating speed of the high speed micro mist blender is 800-1000 revs/min；
D) aerogel layer and aluminium foil layer is compound：By step c）After the powder being collected into is by compressed air, filtering, drying, into Enter 800-1000 DEG C of high-temperature gasification room, forming supersonic airstream through nozzle is injected into one side surface of aluminium foil, is cured at 50-70 DEG C, Form the aluminium foil layer that side is attached with aerogel layer.
E) bonding of multilayered structure：Flame-retardant adhesive is uniformly coated on to the surface of fire-retardant bubble layer, then not with aluminium foil Adhere to the side surface fitting of aerogel layer, compress, fitting roll temperature is 80-100 DEG C, and pressure is 100-150 megapascal, has been bonded It is cured 72-80 hours at 30-45 DEG C after finishing.
Embodiment 2
A kind of A grades of flame-retardant aluminium foil bubble insulating material, including fire-retardant bubble layer, which is characterized in that the one of the fire-retardant bubble layer Side is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer is by the internal cellular row for being full of nitrogen The hexagon bubble structure of row forms, and the fire-retardant bubble layer includes 50 parts by weight low density polyethylene (LDPE)s and the compounding resistance of 20 parts by weight Fire agent.
The wherein described compound flame retardant includes the ingredient of following parts by weight：α-nitrogen of 12 parts of nano aluminium oxide, 1000 mesh 18 parts of SiClx, 30 parts, 30 parts ethylene-vinyl acetate polymer of phenolic resin, 8 parts of silane coupling agents.The aerogel layer by Including the component of following parts by weight is made：20 parts of aerosil, 30 parts of propylene oxide, 130 parts of acetic acid, 70 parts Macrogol 600,30 parts of formamides, 30 parts of toluene diisocyanate trimers, 15 parts of isophorone diisocyanate trimers.
The preparation method of above-mentioned A grades of flame-retardant aluminium foil bubble insulating material, which is characterized in that comprise the steps of：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
c）Propylene oxide, acetic acid, Macrogol 600, formamide high speed micro mist blender are stirred 5-10 minutes, adjusted Solvent temperature 5-8 degree；Aerosil is added, it is 30 DEG C -40 DEG C to adjust solvent temperature, continues stirring 40-60 minutes；Add Enter toluene diisocyanate trimer, isophorone diisocyanate trimer, continues stirring 5-10 minutes；Then air-flow point Grade collects the powder by 8000 mesh filter screens；The rotating speed of the high speed micro mist blender is 800-1000 revs/min；
D) aerogel layer and aluminium foil layer is compound：By step c）After the powder being collected into is by compressed air, filtering, drying, into Enter 800-1000 DEG C of high-temperature gasification room, forming supersonic airstream through nozzle is injected into one side surface of aluminium foil, is cured at 50-70 DEG C, Form the aluminium foil layer that side is attached with aerogel layer.
E) bonding of multilayered structure：Flame-retardant adhesive is uniformly coated on to the surface of fire-retardant bubble layer, then not with aluminium foil Adhere to the side surface fitting of aerogel layer, compress, fitting roll temperature is 80-100 DEG C, and pressure is 100-150 megapascal, has been bonded It is cured 72-80 hours at 30-45 DEG C after finishing.
Embodiment 2
A kind of A grades of flame-retardant aluminium foil bubble insulating material, including fire-retardant bubble layer, which is characterized in that the one of the fire-retardant bubble layer Side is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer is by the internal cellular row for being full of nitrogen The hexagon bubble structure of row forms, and the fire-retardant bubble layer includes 85 parts by weight low density polyethylene (LDPE)s and the compounding resistance of 60 parts by weight Fire agent.
The wherein described compound flame retardant includes the ingredient of following parts by weight：α-nitridation of 10 parts of nano aluminium oxide, 500 mesh 16 parts of silicon, 20 parts, 10 parts ethylene-vinyl acetate polymer of phenolic resin, 2 parts of silane coupling agents.The aerogel layer is by wrapping Component containing following parts by weight is made：5 parts of aerosil, 20 parts of propylene oxide, 80 parts of acetic acid, 50 parts of poly- second two 600,10 parts of formamides of alcohol, 20 parts of toluene diisocyanate trimers, 10 parts of isophorone diisocyanate trimers.
The preparation method of above-mentioned A grades of flame-retardant aluminium foil bubble insulating material, which is characterized in that comprise the steps of：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
c）Propylene oxide, acetic acid, Macrogol 600, formamide high speed micro mist blender are stirred 5-10 minutes, adjusted Solvent temperature 5-8 degree；Aerosil is added, it is 30 DEG C -40 DEG C to adjust solvent temperature, continues stirring 40-60 minutes；Add Enter toluene diisocyanate trimer, isophorone diisocyanate trimer, continues stirring 5-10 minutes；Then air-flow point Grade collects the powder by 8000 mesh filter screens；The rotating speed of the high speed micro mist blender is 800-1000 revs/min；
D) aerogel layer and aluminium foil layer is compound：By step c）After the powder being collected into is by compressed air, filtering, drying, into Enter 800-1000 DEG C of high-temperature gasification room, forming supersonic airstream through nozzle is injected into one side surface of aluminium foil, is cured at 50-70 DEG C, Form the aluminium foil layer that side is attached with aerogel layer.
E) bonding of multilayered structure：Flame-retardant adhesive is uniformly coated on to the surface of fire-retardant bubble layer, then not with aluminium foil Adhere to the side surface fitting of aerogel layer, compress, fitting roll temperature is 80-100 DEG C, and pressure is 100-150 megapascal, has been bonded It is cured 72-80 hours at 30-45 DEG C after finishing.

Claims (9)

1. a kind of A grades of flame-retardant aluminium foil bubble insulating material, including fire-retardant bubble layer, which is characterized in that the fire-retardant bubble layer Side is disposed with fire-retardant glue-line, aluminium foil layer and aerogel layer；The fire-retardant bubble layer by honeycomb arrangement hexagon gas Bubble structure forms, and the fire-retardant bubble layer includes 50-85 parts by weight low density polyethylene (LDPE) and 20-60 parts by weight compound flame retardants.
2. A grades of flame-retardant aluminium foil bubble insulating material according to claim 1, which is characterized in that the fire-retardant bubble layer The nitrogen of purity >=95% is full of inside bubble.
3. A grades of flame-retardant aluminium foil bubble insulating material according to claim 1 or 2, which is characterized in that the compound flame retardant Include the ingredient of following parts by weight：10-12 parts of nano aluminium oxide, 16-18 parts of silicon nitride, 20-30 parts of phenolic resin, 10-30 Part ethylene-vinyl acetate polymer, 2-8 parts of silane coupling agents.
4. A grades of flame-retardant aluminium foil bubble insulating material according to claim 3, which is characterized in that the grain size of the silicon nitride For the α-Si of the mesh of 500 mesh ~ 10003N4。
5. A grades of flame-retardant aluminium foil bubble insulating material according to claim 4, which is characterized in that the fire-retardant bubble layer is logical Cross following methods preparation：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
6. A grades of flame-retardant aluminium foil bubble insulating material according to claim 1, which is characterized in that the aerogel layer is by wrapping Component containing following parts by weight is made：5-20 parts of aerosil, 20-30 parts of propylene oxide, 80-130 parts of acetic acid, 50-70 parts of Macrogol 600s, 10-30 parts of formamides, 20-30 parts of toluene diisocyanate trimers, 10-15 parts of isophorones Diisocyanate trimer.
7. the preparation method of A grades of flame-retardant aluminium foil bubble insulating material as described in claim 1, which is characterized in that comprising following Step：
a）Nano aluminium oxide, silicon nitride are weighed in proportion, is mixed, and phenolic resin, ethylene-vinyl acetate polymer, silicon is added Alkane coupling agent, in 120-150 DEG C of high-speed stirred, extruding pelletization forms compound flame retardant；
b）Low density polyethylene (LDPE) and compound flame retardant are weighed in proportion, gas pearl compounding machine is added, and squeeze out two layers of poly- second of modification of curtain coating Alkene lamination, is respectively used to compound and at bubble, and roller adds the hexagon spill venthole of honeycomb arrangement, is made by negative pressure of vacuum One layer of modified poly ethylene lamination generates recessed bubble, and another layer of heat fusing film attaching is formed on closed air bubbles；Above-mentioned recessed bubble formation Process is attached with duplicature to carry out under nitrogen protection environment.
8. the preparation method of A grades of flame-retardant aluminium foil bubble insulating material according to claim 7, which is characterized in that further include Following steps：
c）20-30 parts of propylene oxide, 80-130 parts of acetic acid, 50-70 parts of Macrogol 600s, 10-30 parts of formamide high speeds are micro- Powder blender stirs 5-10 minutes, adjusts solvent temperature 5-8 degree；5-20 parts of aerosil is added, adjusts solvent temperature It is 30 DEG C -40 DEG C, continues stirring 40-60 minutes；20-30 parts of toluene diisocyanate trimers, 10-15 parts of isophorones are added Diisocyanate trimer continues stirring 5-10 minutes；Then air current classifying collects the powder by 8000 mesh filter screens；Institute The rotating speed for stating high speed micro mist blender is 800-1000 revs/min；
D) aerogel layer and aluminium foil layer is compound：By step c）After the powder being collected into is by compressed air, filtering, drying, into Enter 800-1000 DEG C of high-temperature gasification room, forming supersonic airstream through nozzle is injected into one side surface of aluminium foil, is cured at 50-70 DEG C, Form the aluminium foil layer that side is attached with aerogel layer.
9. the preparation method of A grades of flame-retardant aluminium foil bubble insulating material according to claim 7, which is characterized in that further include Following steps：
E) bonding of multilayered structure：Flame-retardant adhesive is uniformly coated on to the surface of fire-retardant bubble layer, it is then unattached with aluminium foil The side surface fitting of aerogel layer compresses, and fitting roll temperature is 80-100 DEG C, and pressure is 100-150 megapascal, after fitting It is cured 72-80 hours at 30-45 DEG C.
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CN109664575A (en) * 2018-12-26 2019-04-23 苏州市君悦新材料科技股份有限公司 A kind of preparation method of clad aluminum foil flame retardance of polymer heat-barrier material, Polymer Gas vacuolar membrane
CN110565365A (en) * 2019-08-20 2019-12-13 安徽省通信产业服务有限公司 Preparation method of conductive fabric flame-retardant layer
CN113200723A (en) * 2021-05-28 2021-08-03 海阳市利安建材有限公司 High-impermeability concrete and preparation method thereof
CN117698228A (en) * 2023-05-17 2024-03-15 广西中聚新材料技术有限公司 Production process of double-layer bubble type aluminum foil heat insulation film

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CN109664575A (en) * 2018-12-26 2019-04-23 苏州市君悦新材料科技股份有限公司 A kind of preparation method of clad aluminum foil flame retardance of polymer heat-barrier material, Polymer Gas vacuolar membrane
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CN113200723A (en) * 2021-05-28 2021-08-03 海阳市利安建材有限公司 High-impermeability concrete and preparation method thereof
CN117698228A (en) * 2023-05-17 2024-03-15 广西中聚新材料技术有限公司 Production process of double-layer bubble type aluminum foil heat insulation film

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