CN110564068A - Improved polyurethane foaming insulation board and preparation method thereof - Google Patents
Improved polyurethane foaming insulation board and preparation method thereof Download PDFInfo
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- CN110564068A CN110564068A CN201810574726.4A CN201810574726A CN110564068A CN 110564068 A CN110564068 A CN 110564068A CN 201810574726 A CN201810574726 A CN 201810574726A CN 110564068 A CN110564068 A CN 110564068A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses an improved polyurethane foaming insulation board, which comprises the following components in parts by weight: 25% -35% of polyurethane, 26% -34% of polystyrene, 8% -12% of dimethyl methyl phosphate, 2% -6% of magnesium powder, 1% -5% of mica powder, 2% -6% of a film-forming agent and the balance of a solvent, and the invention also discloses an improved polyurethane foaming insulation board and a preparation method thereof, wherein the preparation method comprises the following steps: s1: quantitative weighing, S2: addition polymerization treatment, S3 sheet Forming, S4: trimming, S5: coating treatment; the formula adopted by the invention is the raw material specified by the national standard, the performance of the polyurethane foaming insulation board prepared by the invention is greatly improved, the fire-proof grade of the polyurethane foaming insulation board is improved, the ageing resistance of the polyurethane foaming insulation board is improved, and the produced articles are suitable for more occasions.
Description
Technical Field
the invention relates to the technical field of polyurethane foam preparation, in particular to an improved polyurethane foam insulation board and a preparation method thereof.
Background
the polyurethane is named as polyurethane, is a general name of macromolecular compounds containing repeated carbamate groups on main chains, is a polyurethane material, has wide application, can replace rubber, plastics, nylon and the like, and is used for airports, hotels, building materials, automobile factories, coal mine factories, cement factories, high-grade apartments, villas, landscaping, color stone arts, parks and the like.
Disclosure of Invention
The invention aims to provide an improved polyurethane foaming insulation board and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an improved polyurethane foaming insulation board comprises the following components in parts by weight: 25-35% of polyurethane, 26-34% of polystyrene, 8-12% of methyl dimethyl phosphate, 2-6% of magnesium powder, 1-5% of mica powder, 2-6% of a film-forming agent and the balance of a solvent.
Preferably, the coating comprises 25% of polyurethane, 34% of polystyrene, 8% of methyl dimethyl phosphate, 2% of magnesium powder, 1% of mica powder, 2% of a film-forming agent and the balance of a solvent.
preferably, the coating comprises 27% of polyurethane, 32% of polystyrene, 12% of dimethyl methyl phosphate, 6% of magnesium powder, 3% of mica powder, 5% of a film forming agent and the balance of a solvent.
Preferably, the coating comprises 30% of polyurethane, 30% of polystyrene, 10% of dimethyl methyl phosphate, 3% of magnesium powder, 5% of mica powder, 3% of a film-forming agent and the balance of a solvent.
Preferably, the coating comprises 35% of polyurethane, 26% of polystyrene, 9% of methyl dimethyl phosphate, 5% of magnesium powder, 2% of mica powder, 4% of a film forming agent and the balance of a solvent.
Preferably, the film forming agent is one or more of acrylic emulsion, pure lactic acid, phenylpropyl lactic acid and fluorocarbon lactic acid.
preferably, the solvent is one or more selected from the group consisting of ethylene glycol, xylene and water.
an improved polyurethane foaming insulation board and a preparation method thereof are provided, wherein the preparation method comprises the following steps:
S1: quantitative weighing, namely weighing all the raw materials according to the components;
S2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating at 85-102 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 1-2 hours, and continuing heating for 1-2 hours to perform polyaddition reaction;
S3, forming a plate, cooling the polymer obtained after addition polymerization for 25-40 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, uniformly stirring, pouring the mixture into a mold of a heat-insulating plate, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
S4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
s5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
compared with the prior art, the invention has the beneficial effects that: the formula adopted by the invention is the raw material specified by the national standard, and the polyurethane prepared by the invention is greatly improved, so that the fire-proof grade of the polyurethane is improved, the anti-aging performance is improved, and the produced articles are suitable for more occasions.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.
Example one
The invention provides a technical scheme that: an improved polyurethane foaming insulation board comprises the following components in parts by weight: 25% of polyurethane, 34% of polystyrene, 8% of methyl dimethyl phosphate, 2% of magnesium powder, 1% of mica powder, 2% of a film-forming agent and the balance of a solvent.
Wherein the solvent is ethylene glycol, and the film-forming agent is acrylic emulsion.
an improved polyurethane foaming insulation board and a preparation method thereof are provided, wherein the preparation method comprises the following steps:
S1: quantitative weighing, namely weighing all the raw materials according to the components;
S2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating at 85 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 1 hour, and then continuing heating for 1 hour to perform polyaddition reaction;
S3, forming a plate, cooling the polymer obtained after addition polymerization for 25 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, pouring the mixture into a mold of a heat-insulating plate after uniformly stirring, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
S4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
s5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
example two
the invention provides a technical scheme that: an improved polyurethane foaming insulation board comprises the following components in parts by weight: 27% of polyurethane, 32% of polystyrene, 12% of methyl dimethyl phosphate, 6% of magnesium powder, 3% of mica powder, 5% of a film-forming agent and the balance of a solvent.
wherein the film forming agent is pure lactic acid, and the solvent is dimethylbenzene.
an improved polyurethane foaming insulation board and a preparation method thereof are provided, wherein the preparation method comprises the following steps:
S1: quantitative weighing, namely weighing all the raw materials according to the components;
S2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating at 90 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 1.4 hours, and then continuing heating for 1.3 hours to perform polyaddition reaction;
s3, forming a plate, cooling the polymer obtained after addition polymerization for 28 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, pouring the mixture into a mold of a heat-insulating plate after uniformly stirring, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
S4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
s5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
EXAMPLE III
the invention provides a technical scheme that: an improved polyurethane foaming insulation board comprises the following components in parts by weight: 30% of polyurethane, 30% of polystyrene, 10% of methyl dimethyl phosphate, 3% of magnesium powder, 5% of mica powder, 3% of a film-forming agent and the balance of a solvent.
Wherein, the film forming agent is selected from hydrocinnamactic acid, and the solvent is selected from a mixture of glycol and dimethylbenzene.
an improved polyurethane foaming insulation board and a preparation method thereof are provided, wherein the preparation method comprises the following steps:
s1: quantitative weighing, namely weighing all the raw materials according to the components;
s2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating, controlling the heating temperature to be 94 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 1.8 hours, and then continuing heating for 1.6 hours to perform polyaddition reaction;
S3, forming a plate, cooling the polymer obtained after addition polymerization for 37 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, pouring the mixture into a mold of a heat-insulating plate after uniformly stirring, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
S4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
S5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
example four
the invention provides a technical scheme that: an improved polyurethane foaming insulation board comprises the following components in parts by weight: 35% of polyurethane, 26% of polystyrene, 9% of methyl dimethyl phosphate, 5% of magnesium powder, 2% of mica powder, 4% of a film-forming agent and the balance of a solvent.
Wherein the film forming agent is fluorocarbon lactic acid, and the solvent is water.
An improved polyurethane foaming insulation board and a preparation method thereof are provided, wherein the preparation method comprises the following steps:
S1: quantitative weighing, namely weighing all the raw materials according to the components;
S2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating, controlling the heating temperature to be 100 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 2 hours, and then continuing heating for 3.9 hours to perform polyaddition reaction;
s3, forming a plate, cooling the polymer obtained after addition polymerization for 39 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, pouring the mixture into a mold of a heat-insulating plate after uniformly stirring, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
S4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
S5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
By carrying out component detection on four groups of embodiments and selecting a group of polyurethane foam insulation boards from the market for comparison, the detection results are as follows:
the experimental data on the table show that the fourth group of polyurethane foaming insulation boards in the scheme have high fire-proof grade and optimal ageing resistance, so that the scheme has good popularization value.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. an improved polyurethane foaming insulation board is characterized in that; the formula of the improved polyurethane foaming insulation board comprises the following components: 25-35% of polyurethane, 26-34% of polystyrene, 8-12% of methyl dimethyl phosphate, 2-6% of magnesium powder, 1-5% of mica powder, 2-6% of a film-forming agent and the balance of a solvent.
2. The improved polyurethane foam insulation board of claim 1, wherein: comprises 25 percent of polyurethane, 34 percent of polystyrene, 8 percent of methyl dimethyl phosphate, 2 percent of magnesium powder, 1 percent of mica powder, 2 percent of film forming agent and the balance of solvent.
3. the improved polyurethane foam insulation board of claim 1, wherein: comprises 27 percent of polyurethane, 32 percent of polystyrene, 12 percent of methyl dimethyl phosphate, 6 percent of magnesium powder, 3 percent of mica powder, 5 percent of film forming agent and the balance of solvent.
4. The improved polyurethane foam insulation board of claim 1, wherein: comprises 30 percent of polyurethane, 30 percent of polystyrene, 10 percent of methyl dimethyl phosphate, 3 percent of magnesium powder, 5 percent of mica powder, 3 percent of film forming agent and the balance of solvent.
5. the improved polyurethane foam insulation board of claim 1, wherein: comprises 35% of polyurethane, 26% of polystyrene, 9% of methyl dimethyl phosphate, 5% of magnesium powder, 2% of mica powder, 4% of film-forming agent and the balance of solvent.
6. The improved polyurethane foam insulation board of claim 1, wherein: the film forming agent is one or more of acrylic emulsion, pure lactic acid, phenylpropyl lactic acid and fluorocarbon lactic acid.
7. The improved polyurethane foam insulation board of claim 1, wherein: the solvent is one or more selected from ethylene glycol, xylene and water.
8. An improved polyurethane foam insulation board and a preparation method thereof as claimed in any one of claims 1-7, wherein: the preparation method comprises the following steps:
S1: quantitative weighing, namely weighing all the raw materials according to the components;
S2: performing polyaddition treatment, namely sequentially adding the weighed polyurethane and polystyrene into a sealed container, heating at 85-102 ℃, adding dimethyl methyl phosphate into the sealed container after heating for 1-2 hours, and continuing heating for 1-2 hours to perform polyaddition reaction;
S3, forming a plate, cooling the polymer obtained after addition polymerization for 25-40 minutes to room temperature, replacing the container, adding the polymer into the container, adding magnesium powder into the container, uniformly stirring, pouring the mixture into a mold of a heat-insulating plate, and raising the temperature to improve the foaming forming efficiency after the magnesium powder reacts with oxygen;
s4: trimming, namely cutting and correcting the top of the foamed heat-insulation plate according to a set size before taking out the foamed heat-insulation plate from the die to enable the surface of the heat-insulation plate to be smooth, and then taking out the cut heat-insulation plate to perform the next process;
s5: and (3) coating, namely pouring mica powder into a container, adding the film-forming agent into the container, stirring, continuously adding the solvent during stirring, and smearing the mica powder on the surface of the heat-insulating plate by using a brush when the concentration of the mica powder is proper so as to improve the sun-proof and anti-aging properties of the mica powder.
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| CN201810574726.4A CN110564068A (en) | 2018-06-06 | 2018-06-06 | Improved polyurethane foaming insulation board and preparation method thereof |
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| CN201810574726.4A CN110564068A (en) | 2018-06-06 | 2018-06-06 | Improved polyurethane foaming insulation board and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111808381A (en) * | 2020-07-21 | 2020-10-23 | 太仓幕阳节能科技有限公司 | Preparation process and formula of special insulation board for refrigeration house |
| CN113025060A (en) * | 2021-03-26 | 2021-06-25 | 江苏恒尚节能科技股份有限公司 | Non-metal composite material curtain wall insulation board and preparation method thereof |
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Cited By (3)
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| CN111808381A (en) * | 2020-07-21 | 2020-10-23 | 太仓幕阳节能科技有限公司 | Preparation process and formula of special insulation board for refrigeration house |
| CN113025060A (en) * | 2021-03-26 | 2021-06-25 | 江苏恒尚节能科技股份有限公司 | Non-metal composite material curtain wall insulation board and preparation method thereof |
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