CN109779051A - A kind of energy saving and environment friendly polyurethane cold-storage insulation board - Google Patents
A kind of energy saving and environment friendly polyurethane cold-storage insulation board Download PDFInfo
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- CN109779051A CN109779051A CN201910075273.5A CN201910075273A CN109779051A CN 109779051 A CN109779051 A CN 109779051A CN 201910075273 A CN201910075273 A CN 201910075273A CN 109779051 A CN109779051 A CN 109779051A
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Abstract
The invention belongs to heat-insulation material preparation technical field more particularly to a kind of energy saving and environment friendly polyurethane cold-storage insulation boards.The present invention is utilized respectively polyether polyol, polyester polyol, catalyst, foaming agent, isocyanates and nano-aluminium oxide, modified calcium carbonate is mixed with to obtain insulating layer and flame-retardant layer；Then insulating layer and flame-retardant layer are impregnated in poly-dopamine, silylating reagent mixed liquor respectively, flame-retardant layer is bonded in insulating layer two sides using insulating layer as inner core, polyurethane cold-storage insulation board is prepared；Modification finally is carried out to cold-storage insulation board using dressing agent and is prepared into energy saving and environment friendly polyurethane cold-storage insulation board.Through cold storage plate light weight prepared by the present invention, good heat insulating, excellent in mechanical performance, there is good effects of energy conservation and environmental protection.
Description
Technical field
The invention belongs to heat-insulation material preparation technical fields more particularly to a kind of energy saving and environment friendly polyurethane cold-storage to protect
Warm plate.
Background technique
With the development of science and technology, functional material is receive more and more attention, thermal insulation material building trade by
It is widely applied.Existing cold storage plate is broadly divided into metal insulation board and organic composite insulation board, and metal insulation board quality is big,
Heat insulation effect is bad；Organic composite insulation board has polyurethane sheet, calcium silicate board with microporous, foam glass board, rock wool board and EPS sheet
Deng.But the density of calcium silicate board with microporous, foam glass board, rock wool board is big, thermal coefficient is big, does not meet energy-saving and environment-friendly want
It asks.Although EPS sheet light weight, thermal coefficient is big, and the purpose of effectively insulating heat preservation is not achieved, and energy-saving effect is undesirable.
Polyurethane thermal insulation board is due to having become freezer use with the advantages that light-weight, water absorption rate is low, and heat insulation effect is good
Mainstream insulation board material.But traditional polyurethane thermal insulation board flame retardant effect is poor, mechanical property is insufficient when for manufacturing wall,
Therefore exploitation high-performance, energy-saving and environment-friendly polyurethane cold-storage insulation board have important practical significance.
Summary of the invention
In order to solve, organic composite insulation board thermal coefficient is big, effects of energy conservation and environmental protection is bad and polyurethane thermal insulation board is fire-retardant
Property poor, mechanical property deficiency problem, the present invention provides a kind of light weight, the good high performance polyurethane freezer of heat insulation effect is protected
Warm plate has further widened the application range of insulation board.
In order to achieve the above-mentioned object of the invention, the invention provides the following technical scheme:
A kind of energy saving and environment friendly polyurethane cold-storage insulation board, which comprises the following steps:
(1) preparation of insulating layer: by polyether polyol, polyester polyol, catalyst, three oxygen of foaming agent, isocyanates and nanometer
Change the mixing of two aluminium, 2-4 min is stirred under the conditions of l500 rpm and is uniformly mixed, pours the mixture into mold and foam, cure, take off
Mould obtains polyurethane foam board insulating layer；
(2) preparation of modified calcium carbonate: dispersing nano-calcium carbonate calcium powder in eutectic reagent-water mixed liquid, and silane is added
After coupling agent, 3-4 h is reacted under the conditions of 45-60 DEG C, filtering after being washed with water 3-4 times, is drying to obtain modified calcium carbonate；
(3) preparation of flame-retardant layer: by polyether polyol, polyester polyol, modified calcium carbonate, catalyst, foaming agent, isocyanic acid
Ester, ZrO2Mixing is stirred 2-4 min under the conditions of l500-2000 rpm and is uniformly mixed, pour the mixture into mold foaming,
Curing, demoulding, obtains polyurethane foam board flame-retardant layer；
(4) preparation of polyurethane cold-storage insulation board: by insulating layer and flame-retardant layer respectively in poly-dopamine, silylating reagent mixed liquor
Middle immersion 2-4 h, is bonded in insulating layer two sides for flame-retardant layer using insulating layer as inner core, and polyurethane cold-storage heat preservation is prepared
Plate；
(5) it modifies afterwards: polyurethane cold-storage insulation board is placed in decorating liquid, taken out after reacting 3-4 h under the conditions of 50-70 DEG C,
And after washing with water 2-3 times, it is drying to obtain energy saving and environment friendly polyurethane cold-storage insulation board.
Preferably, step (1), catalyst described in step (3) are stannous methide, dioctyl tin, one in tetraphenyltin
Kind；The foaming agent is one of pentamethylene, hexamethylene, petroleum ether.
Preferably, polyether polyol as described in step (1), polyester polyol, catalyst, foaming agent, isocyanates, receive
It is respectively 25-35 parts, 15-25 parts, 1-2 parts, 20-30 parts, 20-30 parts, 10-15 parts that rice aluminum oxide is calculated by mass fraction.
Preferably, eutectic reagent described in step (2) is methacrylic acid-choline chloride, itaconic acid-choline chloride
One of；The volume fraction of eutectic reagent is 20-30 % in the eutectic reagent-water mixed solution.
Preferably, silane coupling agent described in step (2) be γ-methacryloxypropyl trimethoxy silane,
One of 3- (methacryloxypropyl) propyl-triethoxysilicane；The silane coupling agent is molten in eutectic reagent-water mixing
Concentration in liquid is 0.06-0.12 g/mL.
Preferably, polyether polyol described in step (3), polyester polyol, modified calcium carbonate, catalyst, foaming agent,
Isocyanates, ZrO2By mass fraction calculate be respectively 25-35 parts, 15-25 parts, 5-15 parts, 1-2 parts, 20-30 parts, 20-30 parts,
10-15 parts.
Preferably, silylating reagent described in step (4) is one of tetramethoxy-silicane, tetraethoxysilane；
Poly-dopamine concentration is 0.3-0.45 g/mL in the poly-dopamine, silylating reagent mixed solution, silylating reagent
Concentration is 0.1-0.15 g/mL.
Preferably, bonding described in step (4), the pressure of 100-150 N has been added to the two sides of insulation board respectively.
Preferably, dressing agent described in step (5) is figured by mass parts by 15-25 parts of sodium metasilicate, 3-5 parts of glycerol, 3-5
Part sulfuric acid, 10-15 parts of itaconates, 1-2 parts of azodiisobutyronitriles, 60-70 parts of water compositions.
The room heat-insulated plate thermal coefficient of freezer prepared by the present invention is low, excellent in mechanical performance, heat insulation effect are good.With existing skill
Art is compared, and a kind of energy saving and environment friendly polyurethane cold-storage insulation board provided by the invention has the advantages that poly- using foaming
As main heat preservation internal layer, the porous structure that polyurethane foam is formed increases the heat insulation effect of insulating layer, reduces simultaneously urethane
The consumption of material；Utilize nano-calcium carbonate calcium powder, ZrO2Polyurethane is modified, the anti-flammability and shock resistance of material are improved
Performance；Cold storage plate is further modified using silane coupling agent, so that freezer plate surface covers inertia silica, is improved
The mechanical property of cold storage plate.Through cold storage plate light weight prepared by the present invention, good heat insulating, excellent in mechanical performance, have good
Effects of energy conservation and environmental protection.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but embodiment is not to the technology of the present invention side
The restriction of case, it is all based on variation made by the present invention or equivalent replacement, it is within the scope of protection of the invention.
Embodiment one
A kind of energy saving and environment friendly polyurethane cold-storage insulation board, which comprises the following steps:
(1) preparation of insulating layer: by 28 parts of polyether polyol, 16 parts of polyester polyol, 1 part of stannous methide, 25 parts of pentamethylene, 20
Part isocyanates, 10 parts of nano-aluminium oxides mixing, 3 min are stirred under the conditions of l500 rpm and are uniformly mixed, by mixture
It pours into mold and foams, cures, demoulding obtains polyurethane foam board insulating layer；
(2) preparation of modified calcium carbonate: nano-calcium carbonate calcium powder is dispersed in γ-methacryloxy third of 0.08 g/mL
25 %(v/v of base trimethoxy silane) in methacrylic acid-choline chloride eutectic reagent-water mixed liquid, in 50 DEG C of conditions
3.5 h of lower reaction, filtering, after being washed with water 3 times, are drying to obtain modified calcium carbonate；
(3) preparation of flame-retardant layer: by 20 parts of polyether polyol, 15 parts of polyester polyol, 9 parts of modified calcium carbonates, 1 part of dioctyl
Tin, 25 parts of pentamethylene, 20 parts of isocyanates, 10 parts of ZrO2It is equal to stir 4 min mixing under the conditions of l500-2000 rpm for mixing
It is even, it pours the mixture into mold and foams, cures, demoulding obtains polyurethane foam board flame-retardant layer；
(4) preparation of polyurethane cold-storage insulation board: by insulating layer and flame-retardant layer respectively in 0.4 g/mL poly-dopamine, 0.12 g/
3 h are impregnated in mL tetramethoxy-silicane mixed liquor, flame-retardant layer is bonded in insulating layer two sides using insulating layer as inner core, is prepared into
To polyurethane cold-storage insulation board；
(5) it modifies afterwards: polyurethane cold-storage insulation board being placed in decorating liquid, takes out, is used in combination after reacting 3 h under the conditions of 60 DEG C
After water cleans 3 times, it is drying to obtain energy saving and environment friendly polyurethane cold-storage insulation board.
Embodiment two
A kind of energy saving and environment friendly polyurethane cold-storage insulation board, which comprises the following steps:
(1) preparation of insulating layer: by 25 parts of polyether polyol, 15 parts of polyester polyol, 1 part of tetraphenyltin, 28 parts of hexamethylenes, 20
Part isocyanates, 11 parts of nano-aluminium oxides mixing, 4 min are stirred under the conditions of l500 rpm and are uniformly mixed, by mixture
It foams, cure in the mold of falling people, demoulding obtains polyurethane foam board insulating layer；
(2) preparation of modified calcium carbonate: nano-calcium carbonate calcium powder is dispersed in the 3- (methacryloxypropyl) third of 0.07 g/mL
20 %(v/v of ethyl triethoxy silicane alkane) in methacrylic acid-choline chloride eutectic reagent-water mixed liquid, in 55 DEG C of conditions
4 h of lower reaction, filtering, after being washed with water 4 times, are drying to obtain modified calcium carbonate；
(3) preparation of flame-retardant layer: by 22 parts of polyether polyol, 17 parts of polyester polyol, 10 parts of modified calcium carbonates, 1 part of dioctyl
Tin, 20 parts of hexamethylenes, 20 parts of isocyanates, 10 parts of ZrO2It is equal to stir 4 min mixing under the conditions of l500-2000 rpm for mixing
It is even, it pours the mixture into mold and foams, cures, demoulding obtains polyurethane foam board flame-retardant layer；
(4) preparation of polyurethane cold-storage insulation board: by insulating layer and flame-retardant layer respectively in 0.35 g/mL poly-dopamine, 0.12 g/
3 h are impregnated in mL tetraethoxysilane mixed liquor, flame-retardant layer is bonded in insulating layer two sides using insulating layer as inner core, is prepared into
To polyurethane cold-storage insulation board；
(5) it modifies afterwards: polyurethane cold-storage insulation board being placed in decorating liquid, takes out, is used in combination after reacting 4 h under the conditions of 65 DEG C
After water cleans 3 times, it is drying to obtain energy saving and environment friendly polyurethane cold-storage insulation board.
Embodiment three
A kind of energy saving and environment friendly polyurethane cold-storage insulation board, which comprises the following steps:
(1) preparation of insulating layer: by 22 parts of polyether polyol, 17 parts of polyester polyol, 1 part of tetraphenyltin, 29 parts of petroleum ethers, 20
Part isocyanates, 10 parts of nano-aluminium oxides mixing, 3 min are stirred under the conditions of l500 rpm and are uniformly mixed, by mixture
It pours into mold and foams, cures, demoulding obtains polyurethane foam board insulating layer；
(2) preparation of modified calcium carbonate: nano-calcium carbonate calcium powder is dispersed in the 3- (methacryloxypropyl) third of 0.08 g/mL
20 %(v/v of ethyl triethoxy silicane alkane) in itaconic acid-choline chloride eutectic reagent-water mixed liquid, it is anti-under the conditions of 50 DEG C
4 h are answered, filters, after being washed with water 4 times, is drying to obtain modified calcium carbonate；
(3) preparation of flame-retardant layer: by 24 parts of polyether polyol, 15 parts of polyester polyol, 10 parts of modified calcium carbonates, 1 part of dioctyl
Tin, 20 parts of petroleum ethers, 20 parts of isocyanates, 10 parts of ZrO2It is equal to stir 3 min mixing under the conditions of l500-2000 rpm for mixing
It is even, it pours the mixture into mold and foams, cures, demoulding obtains polyurethane foam board flame-retardant layer；
(4) preparation of polyurethane cold-storage insulation board: by insulating layer and flame-retardant layer respectively in 0.35 g/mL poly-dopamine, 0.12 g/
4 h are impregnated in mL tetramethoxy-silicane mixed liquor, flame-retardant layer is bonded in insulating layer two sides using insulating layer as inner core, is prepared into
To polyurethane cold-storage insulation board；
(5) it modifies afterwards: polyurethane cold-storage insulation board being placed in decorating liquid, takes out, is used in combination after reacting 4 h under the conditions of 55 DEG C
After water cleans 3 times, it is drying to obtain energy saving and environment friendly polyurethane cold-storage insulation board.
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
Obviously the present invention specific implementation is not subject to the restrictions described above, as long as use the inventive concept and technical scheme of the present invention into
The improvement of capable various unsubstantialities, or not improved the conception and technical scheme of the invention are directly applied to other occasions
, it is within the scope of the present invention.
Claims (9)
1. a kind of energy saving and environment friendly polyurethane cold-storage insulation board, which comprises the following steps:
(1) preparation of insulating layer: polyether polyol, polyester polyol, catalyst, foaming agent, isocyanates, nanometer three are aoxidized
Two aluminium are mixed, and 2-4 min is stirred under the conditions of l500 rpm and is uniformly mixed, and pour the mixture into mold and foam, cure, demoulding,
Obtain polyurethane foam board insulating layer；
(2) preparation of modified calcium carbonate: dispersing nano-calcium carbonate calcium powder in eutectic reagent-water mixed liquid, and silane is added
After coupling agent, 3-4 h is reacted under the conditions of 45-60 DEG C, filtering after being washed with water 3-4 times, is drying to obtain modified calcium carbonate；
(3) preparation of flame-retardant layer: by polyether polyol, polyester polyol, modified calcium carbonate, catalyst, foaming agent, isocyanic acid
Ester, ZrO2Mixing is stirred 2-4 min under the conditions of l500-2000 rpm and is uniformly mixed, pour the mixture into mold foaming,
Curing, demoulding, obtains polyurethane foam board flame-retardant layer；
(4) preparation of polyurethane cold-storage insulation board: by insulating layer and flame-retardant layer respectively in poly-dopamine, silylating reagent mixed liquor
Middle immersion 2-4 h, is bonded in insulating layer two sides for flame-retardant layer using insulating layer as inner core, and polyurethane cold-storage heat preservation is prepared
Plate；
(5) it modifies afterwards: polyurethane cold-storage insulation board is placed in decorating liquid, taken out after reacting 3-4 h under the conditions of 50-70 DEG C,
And wash with water 2-3 times, it is drying to obtain energy saving and environment friendly polyurethane cold-storage insulation board.
2. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that step (1), step
Suddenly catalyst described in (3) is one of stannous methide, dioctyl tin, tetraphenyltin；The foaming agent is pentamethylene, ring
One of hexane, petroleum ether.
3. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (1)
The polyether polyol stated, polyester polyol, catalyst, foaming agent, isocyanates, nano-aluminium oxide are by mass fraction point counting
It Wei not be 25-35 parts, 15-25 parts, 1-2 parts, 20-30 parts, 20-30 parts, 10-15 parts.
4. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (2)
The eutectic reagent stated is one of methacrylic acid-choline chloride, itaconic acid-choline chloride；The eutectic reagent-
The volume fraction of eutectic reagent is 20-30 % in water mixed solution.
5. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (2)
The silane coupling agent stated is γ-methacryloxypropyl trimethoxy silane, three ethoxy of 3- (methacryloxypropyl) propyl
One of base silane；Concentration of the silane coupling agent in eutectic reagent-water mixed solution is 0.06-0.12 g/mL.
6. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, which is characterized in that in step (3)
The polyether polyol, polyester polyol, modified calcium carbonate, catalyst, foaming agent, isocyanates, ZrO2By mass fraction
Calculate is respectively 25-35 parts, 15-25 parts, 5-15 parts, 1-2 parts, 20-30 parts, 20-30 parts, 10-15 parts.
7. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (4)
The silylating reagent stated is one of tetramethoxy-silicane, tetraethoxysilane；The poly-dopamine, silylating reagent are mixed
Closing poly-dopamine concentration in solution is 0.3-0.45 g/mL, and the concentration of silylating reagent is 0.1-0.15 g/mL.
8. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (4)
The bonding stated has added the pressure of 100-150 N to the two sides of insulation board respectively.
9. a kind of energy saving and environment friendly polyurethane cold-storage insulation board according to claim 1, it is characterised in that institute in step (5)
The dressing agent stated is figured by mass parts by 15-25 parts of sodium metasilicate, 3-5 parts of glycerol, 3-5 parts of sulfuric acid, 10-15 parts of itaconates, 1-2
Part azodiisobutyronitrile, 60-70 parts of water compositions.
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| CN201910075273.5A CN109779051A (en) | 2019-01-25 | 2019-01-25 | A kind of energy saving and environment friendly polyurethane cold-storage insulation board |
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| CN201910075273.5A CN109779051A (en) | 2019-01-25 | 2019-01-25 | A kind of energy saving and environment friendly polyurethane cold-storage insulation board |
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| CN109779051A true CN109779051A (en) | 2019-05-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982028A (en) * | 2019-12-03 | 2020-04-10 | 江苏科趣新材料科技有限公司 | Heat insulation material for refrigeration house |
-
2019
- 2019-01-25 CN CN201910075273.5A patent/CN109779051A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110982028A (en) * | 2019-12-03 | 2020-04-10 | 江苏科趣新材料科技有限公司 | Heat insulation material for refrigeration house |
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Application publication date: 20190521 |