CN111873586A - Preparation method of polyurethane heat-insulation integrated plate for building material - Google Patents

Preparation method of polyurethane heat-insulation integrated plate for building material Download PDF

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CN111873586A
CN111873586A CN202010779856.9A CN202010779856A CN111873586A CN 111873586 A CN111873586 A CN 111873586A CN 202010779856 A CN202010779856 A CN 202010779856A CN 111873586 A CN111873586 A CN 111873586A
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integrated plate
polyurethane
stirring
pet film
mixture
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余焯兴
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Guangzhou Jiapeng Technology Co ltd
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Guangzhou Jiapeng Technology Co ltd
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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
    • B32B27/08—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 of synthetic resin
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2401/02—Cellulose; Modified cellulose
    • 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
    • C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
    • C08J2483/10—Block- or graft-copolymers containing polysiloxane sequences
    • C08J2483/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K3/2279—Oxides; Hydroxides of metals of antimony
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • 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
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/41—Compounds containing sulfur bound to oxygen
    • C08K5/42—Sulfonic acids; Derivatives thereof
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

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  • Engineering & Computer Science (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
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  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a preparation method of a polyurethane heat-insulation integrated plate for a building material, which comprises the following operation steps: (1) mixing and stirring the dimer acid rare earth, the titanium gypsum and the water uniformly, adding the jute fiber, and continuously mixing and stirring uniformly to prepare the filler; (2) smearing a mixture of dimethyl silicone oil and N, N-diethyl propargylamine sulfate on one surface of a PET film, and then putting a forming die on the surface of the PET film; (3) mixing polyether polyol, a flame retardant, monofluorodichloroethane, a dispersing agent, a defoaming agent and fumed silica uniformly, adding isocyanate, pouring the mixture into a forming die, filling the forming die with the isocyanate, curing, and demolding to obtain the polyurethane heat-preservation integrated plate. The polyurethane heat-preservation integrated plate prepared by the invention has excellent mechanical property and heat-preservation property, and the decorative material on the surface can not fall off after long-time use.

Description

Preparation method of polyurethane heat-insulation integrated plate for building material
Technical Field
The invention relates to the technical field of preparation of polyurethane insulation boards, in particular to a preparation method of a polyurethane insulation integrated board for building materials.
Background
The polycarbamate is abbreviated as polycarbamate and is a chemically synthesized polymer. They are generally synthesized by a simple molding process of mixing liquid isocyanuric acid vinegar, liquid polyether or polyester polyol and other additives (e.g., catalyst, blowing agent, surfactant, etc.) to form a polymer compound material having a NHCOO-group repeating unit. By changing the structure of the raw materials and adopting different proportions, polymers with linear or body-type structures and different hardness can be prepared. Polyurethane foams can be classified into flexible, semi-rigid, and the like, according to their foam hardness. Polyurethane foams hold a great importance among plastics, and are the most widespread class of polyurethane products. The demand for polyurethane foams is increasing in industry and in daily life, and the proportion of polyurethane foam in all polyurethane products is the largest, about 70%.
Today, foams have become an important part of the polymer industry, affecting almost every aspect of our daily lives. Because of the advantages of low density, high mechanical property, low thermal conductivity, dimensional stability, aging resistance, corrosion resistance, convenient processing, high aperture ratio and the like, the hard foam material is widely used as a heat preservation, heat insulation and sound absorption material in the fields of industrial buildings, refrigerators, chemical pipelines, transportation and the like. However, the existing polyurethane heat-insulating integrated plate for the building material is directly bonded with the decorative material by utilizing the foaming characteristic of polyurethane without any adhesive, so that the material cost is saved and the working procedures are reduced, but after the polyurethane is directly bonded with the decorative material, the effective period is short, the heat-insulating polyurethane material and the decorative material are placed in a normal environment for about one year, the phenomenon of viscosity reduction is generated between the heat-insulating polyurethane material and the decorative material, the decorative material is peeled off, the product appearance is influenced, and the phenomenon that people are injured by pounding the decorative material after the decorative material is peeled off is easily generated.
Disclosure of Invention
In order to solve the existing problems, the invention provides a preparation method of a polyurethane heat-insulation integrated plate for a building material.
The invention is realized by the following technical scheme:
a preparation method of a polyurethane heat-insulation integrated plate for building materials comprises the following operation steps:
(1) uniformly mixing and stirring the dimer acid rare earth, the titanium gypsum and the water according to the mass ratio of 6:35-45:250-300, adding jute fiber, and continuously and uniformly mixing and stirring to obtain the filler;
(2) smearing a mixture of dimethyl silicone oil and N, N-diethyl propargylamine sulfate on one surface of a PET film, and then putting a forming die on the surface of the PET film;
(3) mixing and stirring polyether polyol, a flame retardant, monofluorodichloroethane, a dispersing agent, a defoaming agent and fumed silica uniformly, adding isocyanate with the same mass as the polyether polyol, stirring quickly for 10-15 seconds, pouring the mixture into a forming mold, covering a PET film coated with a mixture of dimethyl silicone oil and N, N-diethyl propargylamine sulfate on one surface of the PET film after filling the forming mold, curing for 60-100min, and demolding to obtain the polyurethane heat-preservation integrated plate.
Specifically, in the step (1), the dimer acid rare earth is prepared by the following method: slowly adding a sodium hydroxide aqueous solution with the mass fraction of 5% and the weight which is 3-5 times of that of the dimer acid into the dimer acid, continuously stirring for 30-40min to obtain a light yellow uniform transparent solution, then continuously adding an yttrium chloride aqueous solution with the mass of 10-15% of that of the solution into the solution, stirring and stirring uniformly, heating to 65-75 ℃, carrying out reaction treatment for 2-3 h to obtain a viscous jelly, pouring out a water layer, and cleaning the viscous jelly with distilled water to obtain the dimer acid rare earth.
Specifically, in the step (1), the length of the jute fiber is 5 to 10 cm.
Specifically, in the step (2), the mass ratio of the simethicone to the N, N-diethylpropargylamine sulfate is 3-5: 1.
Specifically, in the step (2), the amount of the mixture of the dimethyl silicone oil and the N, N-diethyl propargylamine sulfate coated on the PET film is 110-130g/m2。
Specifically, the flame retardant is any one of antimony trioxide, magnesium hydroxide and aluminum hydroxide.
Specifically, the dispersant is any one of sodium methylene dinaphthalene sulfonate and sodium methylene dinaphthalene sulfonate.
Specifically, the defoaming agent is any one of polyether modified silicone oil and fatty acid glyceride.
Specifically, the thickness of the forming die is 20-35 mm.
According to the technical scheme, the beneficial effects of the invention are as follows:
the polyurethane heat-insulation integrated plate prepared by the method provided by the invention has excellent impact resistance and deformation recovery capability, is remarkable in heat-insulation performance, and particularly has no phenomenon that the decorative material on the surface falls off after being used for a long time. Although the addition of the titanium gypsum reduces the heat insulation performance of the polyurethane heat insulation integrated plate to a certain extent, the addition of the jute fiber can improve the stability of the internal void structure of the polyurethane material and the distribution uniformity of the solid gas mixed structure in the polyurethane material, thereby effectively ensuring the heat insulation performance of the polyurethane heat insulation integrated plate; according to the invention, by adding the titanium gypsum and the jute fiber, the polyurethane heat-insulation integrated plate can bear a part of pressure when being subjected to the action of external pressure, so that the phenomenon that a polyurethane material deforms in the using process is effectively avoided, and the phenomenon that the polyurethane material and a PET film are debonded is further avoided; the addition of the dimer acid rare earth can effectively improve the stability of the interpenetrating network structure among the polyurethane material, the titanium gypsum and the jute fiber, thereby effectively ensuring the function of the titanium gypsum and the jute fiber; according to the invention, the polyurethane material is adhered to the PET film, the compatibility between the polyurethane material and the PET film is strong, the difference of the interface between the polyurethane material and the PET film is small, and the adhesion force between the polyurethane material and the PET film is strong.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will understand the following invention, which should not be construed as limiting the scope of the invention. The examples do not show specific conditions, and the conventional conditions are only used for illustration or conditions suggested by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
Example 1
A preparation method of a polyurethane heat-insulation integrated plate for building materials comprises the following operation steps:
(1) uniformly mixing and stirring dimer acid rare earth, titanium gypsum and water according to the mass ratio of 6:35:250, adding jute fiber with the length of 5cm, continuously mixing and uniformly stirring to obtain a filler, wherein the dimer acid rare earth is prepared by the following method: slowly adding a sodium hydroxide aqueous solution with the mass fraction of 5% and the weight of 3 times that of the dimer acid into the dimer acid, continuously stirring for 30min to obtain a light yellow uniform transparent solution, continuously adding a yttrium chloride aqueous solution with the mass fraction of 10% of the solution into the solution, stirring and stirring uniformly, heating to 65 ℃, reacting for 2 hours to obtain a viscous jelly, pouring out a water layer, and cleaning the viscous jelly with distilled water to obtain the dimer acid rare earth;
(2) smearing a mixture of dimethyl silicone oil and N, N-diethyl propyne amine sulfate on one surface of a PET film, then placing a forming mold on the surface of the PET film, wherein the mass ratio of the dimethyl silicone oil to the N, N-diethyl propyne amine sulfate is 3:1, and the smearing amount of the mixture of the dimethyl silicone oil and the N, N-diethyl propyne amine sulfate on the PET film is 110g/m2The thickness of the forming die is 20 mm;
(3) polyether polyol, antimony trioxide, monofluorodichloroethane, sodium methylene dinaphthalene sulfonate, polyether modified silicone oil and fumed silica are mixed and stirred uniformly, then isocyanate with the same mass as the polyether polyol is added into the mixture, the mixture is quickly stirred for 10 to 15 seconds, the mixture is poured into a forming mold, the forming mold is filled with the isocyanate, a PET film with the mixture of dimethyl silicone oil and N, N-diethyl propyne sulfate coated on one surface of the PET film, curing treatment is carried out for 60 to 100 minutes, and the polyurethane heat-preservation integrated plate is prepared after demolding.
Example 2
A preparation method of a polyurethane heat-insulation integrated plate for building materials comprises the following operation steps:
(1) uniformly mixing and stirring dimer acid rare earth, titanium gypsum and water according to the mass ratio of 6:40:280, adding 8 cm-long jute fiber, continuously mixing and uniformly stirring to obtain a filler, wherein the dimer acid rare earth is prepared by the following method: slowly adding a sodium hydroxide aqueous solution with the mass fraction of 5% 4 times the weight of the dimer acid, continuously stirring for 35min to obtain a light yellow uniform transparent solution, continuously adding a yttrium chloride aqueous solution with the mass fraction of 13% of the solution into the solution, stirring and stirring uniformly, heating to 70 ℃, reacting for 2.5 hours to obtain a viscous jelly, pouring out a water layer, and cleaning the viscous jelly with distilled water to obtain the dimer acid rare earth;
(2) coating a mixture of dimethyl silicone oil and N, N-diethyl propynylamine sulfate on one surface of a PET film, and thenThen placing a forming die on the surface of the PET film, wherein the mass ratio of the dimethyl silicone oil to the N, N-diethyl propargylamine sulfate is 4:1, and the coating amount of the mixture of the dimethyl silicone oil and the N, N-diethyl propargylamine sulfate on the PET film is 150g/m2(ii) a The thickness of the forming die is 30 mm;
(3) mixing and stirring polyether polyol, magnesium hydroxide, monofluorodichloroethane, sodium methylene dinaphthalene sulfonate, fatty glyceride and fumed silica uniformly, adding isocyanate with the same mass as the polyether polyol, quickly stirring for 13 seconds, pouring the mixture into a forming mold, filling the forming mold, covering a PET film with a mixture of dimethyl silicone oil and N, N-diethyl propyne sulfate on one surface of the PET film, curing for 60-100min, and demolding to obtain the polyurethane heat-preservation integrated plate.
Example 3
A preparation method of a polyurethane heat-insulation integrated plate for building materials comprises the following operation steps:
(1) uniformly mixing and stirring dimer acid rare earth, titanium gypsum and water according to the mass ratio of 6:45:300, adding jute fiber with the length of 10cm, continuously mixing and uniformly stirring to obtain a filler, wherein the dimer acid rare earth is prepared by the following method: slowly adding a sodium hydroxide aqueous solution with the mass fraction of 5% and the weight of 5 times that of the dimer acid into the dimer acid, continuously stirring for 40min to obtain a light yellow uniform transparent solution, continuously adding an yttrium chloride aqueous solution with the mass fraction of 15% into the solution, stirring and stirring uniformly, heating to 75 ℃, reacting for 3 hours to obtain a viscous jelly, pouring out a water layer, and cleaning the viscous jelly with distilled water to obtain the dimer acid rare earth;
(2) smearing a mixture of dimethyl silicone oil and N, N-diethyl propyne amine sulfate on one surface of a PET film, then placing a forming mold on the surface of the PET film, wherein the mass ratio of the dimethyl silicone oil to the N, N-diethyl propyne amine sulfate is 5:1, and the smearing amount of the mixture of the dimethyl silicone oil and the N, N-diethyl propyne amine sulfate on the PET film is 130g/m2(ii) a The thickness of the forming die is 35mm
(3) Mixing and stirring polyether polyol, aluminum hydroxide, monofluorodichloroethane, sodium methylene dinaphthalene sulfonate, fatty glyceride and fumed silica uniformly, adding isocyanate with the same mass as the polyether polyol, quickly stirring for 15 seconds, pouring the mixture into a forming mold, filling the forming mold, covering a PET film with a mixture of dimethyl silicone oil and N, N-diethyl propyne sulfate on one surface of the PET film, curing for 100min, and demolding to obtain the polyurethane heat-preservation integrated plate.
Comparative example 1
The procedure of step (1) was the same as in example 1 except that no titanium gypsum was added.
Comparative example 2
The operation of step (1) is the same as that of example 2 except that dimer acid rare earth is not added.
Comparative example 3
The procedure of step (2) was exactly the same as that of example 3 except that the PET film was not coated with dimethylsilicone oil and N, N-diethylpropargylamine sulfate.
The polyurethane heat-preservation integrated plate is prepared by the methods of the examples and the comparative examples respectively, and then various performances of the polyurethane heat-preservation integrated plate are tested, and the test results are shown in table 1:
TABLE 1 polyurethane insulation integration plate Performance test results
Figure BDA0002619810110000051
Figure BDA0002619810110000061
As can be seen from the data of example 1, comparative example 1, example 2, and comparative example 2 in table 1, the titanium gypsum and the jute fiber can bear a part of pressure when the polyurethane thermal insulation integrated plate is under the action of external pressure, so that various mechanical properties of the polyurethane thermal insulation integrated plate are improved, the phenomenon that the polyurethane material deforms in the using process is effectively avoided, and the phenomenon that the polyurethane material and the PET film are debonded is further avoided. It can be known from the data of embodiment 3 and comparative example 3 that after the PET film is coated with the simethicone and the N, N-diethylpropargylamine sulfate, the polyurethane material can be more uniformly distributed on the surface of the PET film in the foaming process, so that the adhesive force between the polyurethane material and the PET film is further improved, the PET film is effectively prevented from falling off from the polyurethane material, and the phenomenon that the decorative material on the other side of the PET film falls off from the polyurethane material is further effectively avoided.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (9)

1. A preparation method of a polyurethane heat-insulation integrated plate for building materials is characterized by comprising the following operation steps:
(1) uniformly mixing and stirring the dimer acid rare earth, the titanium gypsum and the water according to the mass ratio of 6:35-45:250-300, adding jute fiber, and continuously and uniformly mixing and stirring to obtain the filler;
(2) smearing a mixture of dimethyl silicone oil and N, N-diethyl propargylamine sulfate on one surface of a PET film, and then putting a forming die on the surface of the PET film;
(3) mixing and stirring polyether polyol, a flame retardant, monofluorodichloroethane, a dispersing agent, a defoaming agent and fumed silica uniformly, adding isocyanate with the same mass as the polyether polyol, stirring quickly for 10-15 seconds, pouring the mixture into a forming mold, covering a PET film coated with a mixture of dimethyl silicone oil and N, N-diethyl propargylamine sulfate on one surface of the PET film after filling the forming mold, curing for 60-100min, and demolding to obtain the polyurethane heat-preservation integrated plate.
2. The method for preparing the polyurethane insulation integrated plate for the building material according to claim 1, wherein in the step (1), the dimer acid rare earth is prepared by the following method: slowly adding a sodium hydroxide aqueous solution with the mass fraction of 5% and the weight which is 3-5 times of that of the dimer acid into the dimer acid, continuously stirring for 30-40min to obtain a light yellow uniform transparent solution, then continuously adding an yttrium chloride aqueous solution with the mass of 10-15% of that of the solution into the solution, stirring and stirring uniformly, heating to 65-75 ℃, carrying out reaction treatment for 2-3 h to obtain a viscous jelly, pouring out a water layer, and cleaning the viscous jelly with distilled water to obtain the dimer acid rare earth.
3. The method for preparing the polyurethane insulation integrated board for building materials according to claim 1, wherein in the step (1), the jute fiber has a length of 5 to 10 cm.
4. The method for preparing the polyurethane insulation integrated plate for the building material as claimed in claim 1, wherein in the step (2), the mass ratio of the dimethyl silicone oil to the N, N-diethyl propynylamine sulfate is 3-5: 1.
5. The method for preparing the polyurethane insulation integrated plate for building materials as claimed in claim 4, wherein in the step (2), the amount of the mixture of the dimethyl silicone oil and the N, N-diethylpropargylamine sulfate coated on the PET film is 110-130g/m2。
6. The method for preparing the polyurethane thermal insulation integrated plate for the building material according to claim 1, wherein the flame retardant is any one of antimony trioxide, magnesium hydroxide and aluminum hydroxide.
7. The preparation method of the polyurethane heat-preservation integrated plate for the building materials as claimed in claim 1, wherein the dispersant is any one of sodium methylene dinaphthalenesulfonate and sodium methylene dinaphthalenesulfonate.
8. The preparation method of the polyurethane heat-preservation integrated plate for the building materials as claimed in claim 1, wherein the defoaming agent is any one of polyether modified silicone oil and fatty acid glyceride.
9. The preparation method of the polyurethane heat-preservation integrated plate for the building materials as claimed in claim 1, wherein the thickness of the forming mold is 20-35 mm.
CN202010779856.9A 2020-08-05 2020-08-05 Preparation method of polyurethane heat-insulation integrated plate for building material Withdrawn CN111873586A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112874065A (en) * 2020-12-29 2021-06-01 江苏华美特金属科技有限公司 High-strength high-performance fireproof aluminum composite board and preparation process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112874065A (en) * 2020-12-29 2021-06-01 江苏华美特金属科技有限公司 High-strength high-performance fireproof aluminum composite board and preparation process thereof

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