CN109986849A - A kind of flame retardant polyurethane insulation board and preparation method thereof - Google Patents
A kind of flame retardant polyurethane insulation board and preparation method thereof Download PDFInfo
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- CN109986849A CN109986849A CN201910158078.9A CN201910158078A CN109986849A CN 109986849 A CN109986849 A CN 109986849A CN 201910158078 A CN201910158078 A CN 201910158078A CN 109986849 A CN109986849 A CN 109986849A
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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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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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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- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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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
- 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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- 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
- B32B5/02—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 structural features of a fibrous or filamentary layer
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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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
- C08G18/4845—Polyethers containing oxyethylene units and other oxyalkylene units containing oxypropylene or higher oxyalkylene end groups
-
- 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
- C08J9/141—Hydrocarbons
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
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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
-
- 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
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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
- C08G2101/00—Manufacture of cellular products
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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
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
Abstract
The invention discloses a kind of flame retardant polyurethane insulation boards and preparation method thereof, more particularly to the heat preservation technology field of construction material, including insulation board main body, casing play is provided in the middle part of the insulation board main body, the casing play two sides are provided with the first reinforcing layer, two first reinforcing layer sides are provided with polyurethane sheet, two polyurethane sheet sides are provided with insulating layer, two insulating layer sides are provided with the second reinforcing layer, and two second reinforcing layer sides are provided with finish coat.The present invention is welded into casing play by the vacuum tubular keel that multiple levels are collinearly arranged, and the first reinforcing layer and the second reinforcing layer are successively arranged in the side of the two sides of casing play and two insulating layers, polyurethane thermal insulation board can be improved collapses load value and compression set value, promote its stability in use, meanwhile it can also be by greatly improving the thermal insulation property of polyurethane thermal insulation board using multiple-insulating structure.
Description
Technical field
The present invention relates to the heat preservation technology fields of construction material, it is more particularly related to a kind of flame retardant polyurethane
Insulation board and preparation method thereof.
Background technique
Currently used thermal insulation material is broadly divided into organic insulation material and inorganic heat insulation material.Organic insulation material is such as poly-
Benzene plate, phenolic board etc. have many advantages, such as that light, compactness is high, good effect of heat insulation, but the disadvantage is that: not ageing-resistant, deformation system
Number is big, stability is poor, safety is poor, easy firing, eco-environmental prote is very poor, its resource is limited, and is difficult to cycling and reutilization.It is inorganic
Thermal insulation material such as glass bead, expanded perlite, rock wool etc., fire protection flame retarding, deformation coefficient be small, it is anti-aging, with base and smear
Surface layer combines preferably, but its bulk density is larger, easy to moisture absorption, heat insulating effect is very poor.
The patent of invention of 104592481 A of patent application publication CN discloses a kind of high-fire-resistance polyurethane thermal insulation board
And preparation method thereof, it is realized by merely adding fire retardant into conventional polyurethanes, but it is more stable by obtaining
Novel high polymer structure come what is realized, accomplished to be a kind of completely new modified polyurethane thermal insulation material from the innovation in principle,
Overcome the inflammable disadvantage of conventional polyurethanes material from the most fundamental macromolecular structure, while this novel modified polyurethane
Macromolecular structure also enhances the mechanical performance of plate manufactured goods, overcomes rock-wool heat insulation plate, phenolic-aldehyde heat-insulation board, polystyrene and protects
The disadvantage of warm plate and XPS plastic extrusion heated board bad mechanical property and other systems material compatibility difference.
But it is in actual use, still there is more disadvantage, compressive property and heat preservation such as in use
Performance is poor.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provide a kind of flame retardant polyurethane insulation board and its
Preparation method is welded into casing play by the vacuum tubular keel that multiple levels are collinearly arranged, and the two sides of casing play with
And the side of two insulating layers is successively arranged the first reinforcing layer and the second reinforcing layer, polyurethane thermal insulation board can be improved collapses load
Value and compression set value, promote its stability in use, meanwhile, pass through the sky formed between two neighboring keel
Intracavitary portion is filled with thermal insulation material, and cooperates the insulating layer of casing play two sides and the keel of vacuum tubular structure, is conducive to lead to
Multiple insulation construction is crossed to greatly improve the thermal insulation property of polyurethane thermal insulation board, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of flame retardant polyurethane insulation board, including insulation board
Main body, the insulation board main body middle part are provided with casing play, and the casing play two sides are provided with the first reinforcing layer, described in two
First reinforcing layer side is provided with polyurethane sheet, and two polyurethane sheet sides are provided with insulating layer, two guarantors
Warm layer side is provided with the second reinforcing layer, and two second reinforcing layer sides are provided with finish coat, the casing play,
One reinforcing layer, polyurethane sheet, the second reinforcing layer of insulating layer and finish coat are bonded by adhesive between any two.
In a preferred embodiment, the casing play includes multiple keel, the axial section shape of the keel
For regular hexagon, multiple keel levels are collinearly arranged, and weld between two neighboring keel, and the keel are set as hollow
Vacuum tubular structure, the cavity inside formed between the two neighboring keel is precious filled with aerogel blanket, mineral wool, expansion
Any one in Zhu Yan, foamed cement.
In a preferred embodiment, first reinforcing layer and the second reinforcing layer fibreglass weave networking
Shape structure, and be formed by stacking by compound glass web.
In a preferred embodiment, the present invention also provides a kind of preparation method of flame retardant polyurethane insulation board,
Specifically include following operating procedure:
S1: the production of casing play: multiple keel levels are collinearly arranged, and will weld between two neighboring keel, meanwhile,
The cavity inside formed between two neighboring keel is filled in aerogel blanket, mineral wool, expanded perlite or foamed cement
Any one thermal insulation material；
S2: the production of reinforcing layer: by glass raw material through high temperature melting at glass marble, then carrying out secondary fusion for glass marble, and
High-speed wire-drawing at glass fiber precursor, then by wire drawing at glass fiber precursor be woven into reticular structure, and by compound glass
Web is superimposed and forms reinforcing layer；
S3: the preparation of polyurethane sheet:
(1) according to the mass fraction, weigh following component and prepare raw material: 40-50 parts of polyether polyol, 20-30 parts of diisocyanate,
3-5 parts of dimethyl benzylamine, 1-3 parts of surfactant, 2-4 parts of fire retardant, 3-5 parts of pentamethylene, 10-12 parts of distilled water, aeroge
4-6 parts of felt；
(2) diisocyanate, fire retardant, distilled water, are successively uniformly mixed by the proportion by weight for pressing above-mentioned raw materials, stand 20-
30min obtains mixture A, is placed in spare in material pump；
(3) proportion by weight of above-mentioned raw materials is pressed, polyether polyols successively are added in the material pump into (2) of S3 equipped with mixture A
Alcohol, dimethyl benzylamine, surfactant, pentamethylene and aerogel blanket, and the speed of 1200-1500 turns/min is used in material pump
Degree stirring 15-20min, is sufficiently mixed each raw material uniformly, obtains mixture B；
(4) mixture B obtained in (3) of S3 is placed in foaming machine after foaming processing, is placed in molding machine and is solidified, is ripe
Change, molding, obtains finished product polyurethane sheet；
S4: it molding: is successively arranged casing play, the first reinforcing layer, polyurethane sheet, insulating layer the from inside to outside in casing play two sides
Two reinforcing layers and finish coat, and it is bonded by adhesive between any two.
In a preferred embodiment, what the polyether polyol was selected be using bimetal complex as catalyst,
The polypropylene oxide ethoxylated polyhydric alcohol of ultralow monol content, high relative molecular mass is prepared first, then uses alkali metal compound
Catalyst, with ethylene oxide-capped and obtained polyether polyol with high activity.
In a preferred embodiment, what the surfactant was selected is by the pending methyl group with polarized very little
The silico-carbo type surfactant of siloxane group, polyethylene glycol oxide ether and propylene oxide ether group composition.
In a preferred embodiment, what the fire retardant was selected is that modified pentabromo- Biphenyl Ether/phosphate is blended
Fire retardant.
Technical effect and advantage of the invention:
1, the present invention is by the way that multiple keel levels are collinearly arranged, and welds between two neighboring keel, and during keel are set as
Empty vacuum tubular structure is conducive to the raw material for saving casing play, the internal stress of keel is improved, to greatly improve poly- ammonia
Ester insulation board collapses load value and compression set value, and is successively arranged in the side of the two sides of casing play and two insulating layers
First reinforcing layer and the second reinforcing layer, be conducive to further increase polyurethane thermal insulation board collapses load value and compression set value,
Its stability in use is promoted, meanwhile, the cavity inside formed between two neighboring keel is filled with thermal insulating material
Material, and cooperate the insulating layer of casing play two sides and the keel of vacuum tubular structure, be conducive to through multiple-insulating structure come big
The big thermal insulation property for improving polyurethane thermal insulation board；
2, the present invention first prepares ultralow monol content, high average molecular matter by selecting using bimetal complex as catalyst
The polypropylene oxide ethoxylated polyhydric alcohol of amount, then alkali metal compound catalyst is used, it is poly- with ethylene oxide-capped and obtained high activity
Ethoxylated polyhydric alcohol, can substantially reduce the dosage of diisocyanate, to reduce production cost, and make the mechanical property of polyurethane sheet
It is improved significantly with comfort, and what fire retardant was selected is modified pentabromo- Biphenyl Ether/phosphate blending fire retardant agent, thermostabilization
Property it is splendid, there is good flame retardant property and anti-coking performance, plastication will not be generated to polyurethane foam, also have good
Hydrolytic stability.
Detailed description of the invention
Fig. 1 is insulation board main body cross-sectional view of the invention；
Fig. 2 is the first reinforcing schematic diagram of a layer structure of the invention；
Fig. 3 is keel structure schematic diagram of the invention；
Appended drawing reference are as follows: 1 insulation board main body, 2 casing plays, 3 first reinforcing layers, 4 polyurethane sheets, 5 insulating layers, 6 second reinforcing layers,
7 finish coats, 8 keel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The present invention provides a kind of flame retardant polyurethane insulation board as shown in Figs. 1-3, including insulation board main body 1, the insulation boards
Casing play 2 is provided in the middle part of main body 1,2 two sides of casing play are provided with the first reinforcing layer 3, two first reinforcing layers 3
Side is provided with polyurethane sheet 4, and two 4 sides of polyurethane sheet are provided with insulating layer 5, two insulating layers 5 one
Side is provided with the second reinforcing layer 6, and two 6 sides of the second reinforcing layer are provided with finish coat 7, the casing play 2, first
Reinforcing layer 3, polyurethane sheet 4,5 second reinforcing layer 6 of insulating layer and finish coat 7 are bonded by adhesive between any two.
Further, the casing play 2 includes multiple keel 8, and the axial section shape of the keel 8 is regular hexagon,
Multiple horizontal conllinear settings of the keel 8, and welded between two neighboring keel 8, the keel 8 are set as hollow vacuum cylinder
Shape structure is conducive to the raw material for saving casing play 2, the internal stress of keel 8 is improved, to greatly improve polyurethane thermal insulation board
Collapse load value and compression set value, the cavity inside formed between the two neighboring keel 8 is filled with aerogel blanket, glass
Glass cotton, expanded perlite, any one in foamed cement, are greatly improved the thermal insulation property of polyurethane thermal insulation board.
Further, first reinforcing layer 3 and 6 fibreglass of the second reinforcing layer are woven into reticular structure, and
It is formed by stacking by compound glass web, be conducive to further increase polyurethane thermal insulation board collapses load value and compression set
Value, promotes its stability in use.
The present invention also provides a kind of preparation methods of flame retardant polyurethane insulation board, specifically include following operating procedure:
S1: it the production of casing play 2: by the horizontal conllinear setting of multiple keel 8, and will be welded between two neighboring keel 8, together
When, the cavity inside formed between two neighboring keel 8 is filled with aerogel blanket, mineral wool, expanded perlite or foaming water
Any one thermal insulation material in mud；
S2: the production of reinforcing layer: by glass raw material through high temperature melting at glass marble, then carrying out secondary fusion for glass marble, and
High-speed wire-drawing at glass fiber precursor, then by wire drawing at glass fiber precursor be woven into reticular structure, and by compound glass
Web is superimposed and forms reinforcing layer；
S3: the preparation of polyurethane sheet 4:
(1) according to the mass fraction, it weighs following component and prepares raw material: 40 parts of polyether polyol, 20 parts of diisocyanate, dimethyl
3 parts of benzylamine, 1 part of surfactant, 2 parts of fire retardant, 3 parts of pentamethylene, 10 parts of distilled water, 4 parts of aerogel blanket；
(2) diisocyanate, fire retardant, distilled water, are successively uniformly mixed by the proportion by weight for pressing above-mentioned raw materials, stand 20-
30min obtains mixture A, is placed in spare in material pump, wherein what fire retardant was selected is that modified pentabromo- Biphenyl Ether/phosphate is blended
Fire retardant；
(3) proportion by weight of above-mentioned raw materials is pressed, polyether polyols successively are added in the material pump into (2) of S3 equipped with mixture A
Alcohol, dimethyl benzylamine, surfactant, pentamethylene and aerogel blanket, and the speed of 1200-1500 turns/min is used in material pump
Degree stirring 15-20min, is sufficiently mixed each raw material uniformly, obtains mixture B, wherein what polyether polyol was selected is with bimetallic
Complex compound is catalyst, prepares the polypropylene oxide ethoxylated polyhydric alcohol of ultralow monol content, high relative molecular mass first, then is adopted
With alkali metal compound catalyst, with ethylene oxide-capped and obtained polyether polyol with high activity, and what surfactant was selected
The silico-carbo being made of the siloxane group of the pending methyl group with polarized very little, polyethylene glycol oxide ether and propylene oxide ether group
Type surfactant；
(4) mixture B obtained in (3) of S3 is placed in foaming machine after foaming processing, is placed in molding machine and is solidified, is ripe
Change, molding, obtains finished product polyurethane sheet 4；
S4: it molding: is successively arranged casing play 2, the first reinforcing layer 3, polyurethane sheet 4, heat preservation from inside to outside in 2 two sides of casing play
5 second reinforcing layer 6 of layer and finish coat 7, and it is bonded by adhesive between any two.
Embodiment 2
Unlike the first embodiment, during prepared by polyurethane sheet:
(1) according to the mass fraction, it weighs following component and prepares raw material: 45 parts of polyether polyol, 25 parts of diisocyanate, dimethyl
4 parts of benzylamine, 2 parts of surfactant, 3 parts of fire retardant, 4 parts of pentamethylene, 11 parts of distilled water, 5 parts of aerogel blanket；
(2) diisocyanate, fire retardant, distilled water, are successively uniformly mixed by the proportion by weight for pressing above-mentioned raw materials, stand 20-
30min obtains mixture A, is placed in spare in material pump, wherein what fire retardant was selected is that modified pentabromo- Biphenyl Ether/phosphate is blended
Fire retardant；
(3) proportion by weight of above-mentioned raw materials is pressed, polyether polyols successively are added in the material pump into (2) of S3 equipped with mixture A
Alcohol, dimethyl benzylamine, surfactant, pentamethylene and aerogel blanket, and the speed of 1200-1500 turns/min is used in material pump
Degree stirring 15-20min, is sufficiently mixed each raw material uniformly, obtains mixture B, wherein what polyether polyol was selected is with bimetallic
Complex compound is catalyst, prepares the polypropylene oxide ethoxylated polyhydric alcohol of ultralow monol content, high relative molecular mass first, then is adopted
With alkali metal compound catalyst, with ethylene oxide-capped and obtained polyether polyol with high activity, and what surfactant was selected
The silico-carbo being made of the siloxane group of the pending methyl group with polarized very little, polyethylene glycol oxide ether and propylene oxide ether group
Type surfactant；
(4) mixture B obtained in (3) of S3 is placed in foaming machine after foaming processing, is placed in molding machine and is solidified, is ripe
Change, molding, obtains finished product polyurethane sheet 4.
Embodiment 3
Unlike equal from embodiment 1 and embodiment 2, during polyurethane sheet preparation:
(1) according to the mass fraction, it weighs following component and prepares raw material: 50 parts of polyether polyol, 30 parts of diisocyanate, dimethyl
5 parts of benzylamine, 3 parts of surfactant, 4 parts of fire retardant, 5 parts of pentamethylene, 12 parts of distilled water, 6 parts of aerogel blanket；
(2) diisocyanate, fire retardant, distilled water, are successively uniformly mixed by the proportion by weight for pressing above-mentioned raw materials, stand 20-
30min obtains mixture A, is placed in spare in material pump, wherein what fire retardant was selected is that modified pentabromo- Biphenyl Ether/phosphate is blended
Fire retardant；
(3) proportion by weight of above-mentioned raw materials is pressed, polyether polyols successively are added in the material pump into (2) of S3 equipped with mixture A
Alcohol, dimethyl benzylamine, surfactant, pentamethylene and aerogel blanket, and the speed of 1200-1500 turns/min is used in material pump
Degree stirring 15-20min, is sufficiently mixed each raw material uniformly, obtains mixture B, wherein what polyether polyol was selected is with bimetallic
Complex compound is catalyst, prepares the polypropylene oxide ethoxylated polyhydric alcohol of ultralow monol content, high relative molecular mass first, then is adopted
With alkali metal compound catalyst, with ethylene oxide-capped and obtained polyether polyol with high activity, and what surfactant was selected
The silico-carbo being made of the siloxane group of the pending methyl group with polarized very little, polyethylene glycol oxide ether and propylene oxide ether group
Type surfactant；
(4) mixture B obtained in (3) of S3 is placed in foaming machine after foaming processing, is placed in molding machine and is solidified, is ripe
Change, molding, obtains finished product polyurethane sheet 4.
The performance parameter of the embodiment 1-3 polyurethane sheet 4 being prepared is detected respectively, and with existing common poly- ammonia
The comparison of ester insulation board, test result is as follows shown in table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example | |
| Thermal coefficient w/(m.k) | 0.019 | 0.022 | 0.020 | 0.031 |
| Anti- coking coefficient | 0.12 | 0.35 | 0.30 | 0.08 |
| Heat release rate (KW/ ㎡) | 116 | 115 | 119 | 149 |
By data comparison data in table it is found that the indexs such as the thermal coefficient of polyurethane sheet, anti-coking coefficient and heat release rate
It is substantially better than existing polyurethane sheet on the market, especially in the preparation step of polyurethane sheet, the component proportion of each raw material is poly-
45 parts of ethoxylated polyhydric alcohol, 25 parts of diisocyanate, 4 parts of dimethyl benzylamine, 2 parts of surfactant, 3 parts of fire retardant, 4 parts of pentamethylene,
11 parts of distilled water, 5 parts of aerogel blanket, the thermal coefficient of polyurethane sheet prepared in the above embodiments, anti-coking coefficient and heat are released
Value can be optimal by putting the indexs such as rate.
Working principle of the present invention:
Referring to Figure of description 1-3, before use, first by the horizontal conllinear setting of multiple keel 8, and will be between two neighboring keel 8
It is welded, meanwhile, the cavity inside formed between two neighboring keel 8 is filled with aerogel blanket, mineral wool, expanded pearlite
Any one thermal insulation material in rock or foamed cement, to improve the thermal insulation property of polyurethane thermal insulation board, then by glass raw material
Through high temperature melting at glass marble, glass marble is then subjected to secondary fusion, and high-speed wire-drawing will then be drawn at glass fiber precursor
Silk at glass fiber precursor be woven into reticular structure, and compound glass web is superimposed and forms reinforcing layer, can be improved poly-
Urethane insulation board collapses load value and compression set value, its stability in use is promoted, then with bimetallic network
Conjunction object is catalyst, prepares the polypropylene oxide ethoxylated polyhydric alcohol of ultralow monol content, high relative molecular mass, and using alkali gold
Belong to compound catalyst then successively to be matched certain mass part with ethylene oxide-capped and obtained polyether polyol with high activity
Diisocyanate, fire retardant, distilled water be uniformly mixed, stand 20-30min, obtain mixture A, be placed in material pump in it is spare, then according to
In secondary (2) to S3 equipped with mixture A material pump in be added polyether polyol, dimethyl benzylamine, surfactant, pentamethylene with
And aerogel blanket, and 15-20min is stirred using the speed of 1200-1500 turns/min in material pump, it is sufficiently mixed each raw material
It is even, mixture B is obtained, is finally successively arranged casing play 2, the first reinforcing layer 3, polyurethane sheet from inside to outside in 2 two sides of casing play
4,5 second reinforcing layer 6 of insulating layer and finish coat 7, and it is bonded by adhesive between any two.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the present invention discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure, and other structures can
With reference to being commonly designed, under not conflict situations, the same embodiment of the present invention and different embodiments be can be combined with each other；
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, 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 (7)
1. a kind of flame retardant polyurethane insulation board, including insulation board main body (1), it is characterised in that: in the middle part of the insulation board main body (1)
It is provided with casing play (2), casing play (2) two sides are provided with the first reinforcing layer (3), two first reinforcing layers (3)
Side is provided with polyurethane sheet (4), and two polyurethane sheet (4) sides are provided with insulating layer (5), two heat preservations
Layer (5) side is provided with the second reinforcing layer (6), and two the second reinforcing layer (6) sides are provided with finish coat (7), institute
State casing play (2), the first reinforcing layer (3), polyurethane sheet (4), (5) second reinforcing layer (6) of insulating layer and finish coat (7) two-by-two
Between pass through adhesive be bonded.
2. a kind of flame retardant polyurethane insulation board according to claim 1, it is characterised in that: the casing play (2) includes
Multiple keel (8), the axial section shape of the keel (8) they are regular hexagon, multiple horizontal conllinear settings of the keel (8), and
It is welded between two neighboring keel (8), the keel (8) are set as hollow vacuum tubular structure, the two neighboring keel
(8) cavity inside formed between is filled with any one in aerogel blanket, mineral wool, expanded perlite, foamed cement.
3. a kind of flame retardant polyurethane insulation board according to claim 1, it is characterised in that: first reinforcing layer (3) and
Second reinforcing layer (6) fibreglass is woven into reticular structure, and is formed by stacking by compound glass web.
4. a kind of preparation method of flame retardant polyurethane insulation board, specifically includes following operating procedure:
S1: it the production of casing play (2): by the horizontal conllinear setting of multiple keel (8), and will be carried out between two neighboring keel (8)
Welding, meanwhile, the cavity inside formed between two neighboring keel (8) is filled with aerogel blanket, mineral wool, expanded perlite
Or any one thermal insulation material in foamed cement；
S2: the production of reinforcing layer: by glass raw material through high temperature melting at glass marble, then carrying out secondary fusion for glass marble, and
High-speed wire-drawing at glass fiber precursor, then by wire drawing at glass fiber precursor be woven into reticular structure, and by compound glass
Web is superimposed and forms reinforcing layer；
S3: the preparation of polyurethane sheet (4):
According to the mass fraction, it weighs following component and prepares raw material: 40-50 parts of polyether polyol, 20-30 parts of diisocyanate, two
3-5 parts of methylbenzylamine, 1-3 parts of surfactant, 2-4 parts of fire retardant, 3-5 parts of pentamethylene, 10-12 parts of distilled water, aerogel blanket
4-6 parts；
By the proportion by weight of above-mentioned raw materials, successively diisocyanate, fire retardant, distilled water are uniformly mixed, stand 20-
30min obtains mixture A, is placed in spare in material pump；
By the proportion by weight of above-mentioned raw materials, successively into (2) of S3 equipped with mixture A material pump in be added polyether polyol,
Dimethyl benzylamine, surfactant, pentamethylene and aerogel blanket, and the speed of 1200-1500 turns/min is used in material pump
15-20min is stirred, each raw material is sufficiently mixed uniformly, obtains mixture B；
After mixture B obtained in (3) of S3 is placed in foaming machine foaming processing, be placed in molding machine solidified, cured,
Molding, obtains finished product polyurethane sheet (4)；
S4: it molding: is successively arranged casing play (2), the first reinforcing layer (3), polyurethane sheet from inside to outside in casing play (2) two sides
(4), (5) second reinforcing layer (6) of insulating layer and finish coat (7), and it is bonded by adhesive between any two.
5. a kind of preparation method of flame retardant polyurethane insulation board according to claim 4, it is characterised in that: the polyethers is more
What first alcohol was selected be using bimetal complex as catalyst, prepare first ultralow monol content, high relative molecular mass it is poly-
Propylene oxide ethoxylated polyhydric alcohol, then alkali metal compound catalyst is used, it is polynary with ethylene oxide-capped and obtained high activity polyether
Alcohol.
6. a kind of preparation method of flame retardant polyurethane insulation board according to claim 4, it is characterised in that: the surface is living
Property agent select be by the siloxane group of the pending methyl group with polarized very little, polyethylene glycol oxide ether and propylene oxide ether group group
At silico-carbo type surfactant.
7. a kind of preparation method of flame retardant polyurethane insulation board according to claim 4, it is characterised in that: the fire retardant
What is selected is modified pentabromo- Biphenyl Ether/phosphate blending fire retardant agent.
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| CN201910158078.9A CN109986849A (en) | 2019-03-03 | 2019-03-03 | A kind of flame retardant polyurethane insulation board and preparation method thereof |
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| CN201910158078.9A CN109986849A (en) | 2019-03-03 | 2019-03-03 | A kind of flame retardant polyurethane insulation board and preparation method thereof |
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Application publication date: 20190709 |