CN103772635B - A kind of preparation method of marine oil and gas transport pipe lagging material - Google Patents
A kind of preparation method of marine oil and gas transport pipe lagging material Download PDFInfo
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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
- C08G18/4825—Polyethers containing two hydroxy groups
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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
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
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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
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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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
- 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
- C08J9/06—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 chemical blowing agent
- C08J9/08—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 chemical blowing agent developing carbon dioxide
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
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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
- C08L75/08—Polyurethanes from polyethers
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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
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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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
- C08J2203/10—Water or water-releasing compounds
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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
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/08—Polyurethanes from polyethers
Abstract
The invention discloses a kind of preparation method of marine oil and gas transport pipe lagging material, comprise: (1) is 0.05 ~ 1.0? in mol/L sodium hydroxide solution, add the diatomite after its 3 ~ 7 times of mass parts roastings, drip magnesium chloride solution while stirring, be filtered to neutrality, after filtration cakes torrefaction, grinding obtains carrier; (2) organic phase change material accounting for carrier 30 as one kind wt% ~ 70wt% is heated to melt completely, adds carrier and stir, make phase-changing energy storage material; (3) the component A and the phase-changing energy storage material mixing that comprise polyether glycol, deionized water, catalyzer and foam stabilizer, add B component isocyanic ester subsequently to stir, pour into rapidly in foaming mould, self-vulcanizing, demoulding fed to boiler solidifies, the obtained pipe insulation material with phase-changing and temperature-regulating function.Lagging material prepared by the inventive method not only has phase-changing and temperature-regulating function, and cost is low, good stability, can to tackle the emergency situations such as quenching, working life long, can be used in coastal waters and deep-sea oil gas transport pipe lagging material.
Description
Technical field
The present invention relates to marine oil and gas transport pipe lagging material, is more particularly about a kind of preparation method with the ocean oil and gas pipeline lagging material of phase-changing and temperature-regulating function.
Background technology
Submarine oil reserves are very abundant, rank first in oceanic mineral resources.Submarine oil conveying is an important ring of submarine oil field exploitation, wherein in the mode that oil pipeline conveying crude oil is most economical.To some crude oil compared with high-consistency (as the content of wax, containing the contour condensation point crude oil of colloid), in course of conveying, if do not take special measure, when oil temperature is reduced to certain value, can separate out high molecular and low-molecular-weight wax component successively, Crude viscosity increases, and mobility is deteriorated; Or when high pressure long distance delivery Sweet natural gas, gas hydrate are separated out with the solid shape like loose ice, causes line clogging etc. time serious, cause industrial accident to occur.Therefore, need to carry out effective isothermal holding to seabed transport pipe, to ensure the normal operation of pipeline.The severe Service Environment in seabed is had higher requirement to lagging material, and this lagging material must possess following property: the ability of low heat conduction coefficient, Bear high pressure, crystalline state-Amorphous Phase transition temperature close to 25 DEG C, the little and material of high transformation enthalpy, density easily looks for, cheap.
Phase-changing energy storage material is as a kind of emerging functional materials, its principle of work is: the phase transition process utilizing phase change material (PCM) wherein, absorb (or release) latent heat of phase change, realize the absorption (or release) to energy in environment, and then can heat accumulation or refrigeration, thus realize the target of energy storage.If the heat of phase-changing energy storage material automatic absorption crude oil can be utilized, PCM is liquefied, store as heat, when there is quenching during then can be implemented in pipeline shutdown or during this, the partial heat that PCM stores to pipeline release, the target of Intelligentized regulating and controlling sea-bottom oil-gas transport pipe temperature.
Existing pipe-line material based on polypropylene and polyurethanes, by adding tiny balloon to improve the physicochemical property of material in fertile material.Application report is yet there are no as the defeated material of the pipe containing phase change material.
CN101016366A discloses a kind of preparation method being applicable to the hard polyurethane foams of pipe insulating layer.The method is formed the component A of raw material with compound polyethers, catalyzer, suds-stabilizing agent, distilled water and whipping agent, the B component being raw material with many phenyl polymethine isocyanic ester, after the two reaction, obtain rigid polyurethane foam.Owing to not containing phase change material in this type of material, so cannot automatic temperature-control be realized under the environment of sea bottom complex; Also because the thermal conductivity (>0.02W/mK) bigger than normal of this foam, and ultimate compression strength general not enough (<0.3MPa), so buried pipeline demand can only be met, the thermal requirements in sea transport pipe road cannot be reached.
(the polyurethane industrial such as Zhou Qiuming, 2002,17(2): 13 ~ 15) after have studied and adding hollow glass micro-ball, the change of the physical and chemical index such as foam structure, compressive property of hard polyurethane foams, point out the foam after adding microballoon, the reduction of its abscess, ultimate compression strength improve.But glass microsphere belongs to inorganic materials, the continuous structure of polyurethane foam is easily damaged, such that the snappiness of foam declines, elasticity reduces; The foam temperature adjustment ability of not adding phase change material still has much room for improvement.In addition, the defeated insulating foam of pipe and the glass microsphere that can be used in region, deep-sea nearly all produce (as Minnesota Mining and Manufacturing Company) by offshore company, and its price is general higher, therefore constrains the possibility of large-scale popularization application.
Summary of the invention
In view of the deficiencies in the prior art, the invention provides a kind of preparation method of marine oil and gas transport pipe lagging material.Pipe insulation material prepared by the inventive method not only has phase-changing and temperature-regulating function, and cost is low, good stability, can to tackle the emergency situations such as quenching, working life long, can be used in coastal waters and deep-sea oil gas transport pipe lagging material.
The preparation method of marine oil and gas transport pipe lagging material of the present invention, comprises following content:
(1) at 0.05 ~ 1.0mol/L, in the sodium hydroxide solution of preferred 0.1 ~ 0.7mol/L, add the diatomite after the roasting of its 3 ~ 7 times of mass parts, then drip magnesium chloride solution while stirring, be filtered to filtrate in neutral, after filtration cakes torrefaction, grinding obtains carrier;
(2) organic phase change material accounting for carrier 30 as one kind wt% ~ 70wt% is heated to melt completely, adds carrier and stir, obtain the carrier having adsorbed organic phase change material, make the subsphaeroidal phase-changing energy storage material of diameter 3 ~ 5 μm;
(3) the full water foamed basic recipe of hard polyurethane foams is adopted, the component A and phase-changing energy storage material that comprise polyether glycol, deionized water, catalyzer and foam stabilizer are fully mixed, add B component isocyanic ester subsequently to stir, pour into rapidly in foaming mould, self-vulcanizing, demoulding fed to boiler solidifies, the obtained marine oil and gas transport pipe lagging material with phase-changing and temperature-regulating function.
In step (1), diatomaceous maturing temperature is 400 ~ 600 DEG C, time 3 ~ 7h.Preferably add the diatomite after the roasting of sodium hydroxide solution 5 times of mass parts, more preferably add the diatomite of 50 ~ 150 mass parts.The concentration of magnesium chloride solution is 0.1 ~ 0.5mol/L, and the mass ratio of magnesium chloride solution and sodium hydroxide solution is 1:1.Stir 30 ~ 60min at 200 ~ 400rpm when dripping magnesium chloride, the filter cake after filtration is dry 10 ~ 30h at 80 ~ 150 DEG C.
In step (2), organic phase change material adds carrier after melting completely, stirs 30 ~ 120min at 400 ~ 1000rpm.Organic phase change material is selected from stearic acid usually, palmitinic acid, transformation temperature are one or more in 40 ~ 80 DEG C of paraffin, the paraffin of preferred transformation temperature 40 ~ 80 DEG C.
Polyether glycol described in step (3) be selected from polyoxypropyleneglycol, polytetrahydrofuran diol and tetrahydrofuran (THF)-propylene oxide copolymer glycols one or more, preferred tetrahydrofuran (THF)-propylene oxide copolymer glycols.Catalyzer be selected from dimethylethanolamine, dimethylamino hexahydroaniline, tripropyl amine, Tributylamine and trolamine one or more, preferred Tributylamine and trolamine.Foam stabilizer be selected from dimethyl silicone oil, ethyl silicon oil, phenyl silicone oil and Methyl Hydrogen Polysiloxane Fluid one or more, preferred dimethyl silicone oil.Isocyanic ester be selected from tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), poly methylene poly phenyl poly isocyanate (PAPI) one or more, preferred PAPI.
The add-on of the phase-changing energy storage material described in step (3) is the 5wt% ~ 30wt% of component A and B component total mass.In component A, the add-on of catalyzer is the 0.3wt% ~ 2.0wt% of polyether glycol quality, and foam stabilizer add-on is the 1.0wt% ~ 4.0wt% of polyether glycol quality, and deionized water add-on is the 2.0wt% ~ 5.0wt% of polyether glycol quality.The mass ratio of polyether glycol and B component is 1:1.2 ~ 1:1.8.
20 ~ 60s is stirred at 300 ~ 600rpm after adding B component in step (3).
Self-vulcanizing time 1 ~ 5h described in step (3), entering stove set time is 2 ~ 10h, furnace temperature 80 ~ 130 DEG C.
Marine oil and gas transport pipe lagging material provided by the invention advantage specific as follows:
(1) adopt diatomite as the carrier of phase-changing energy storage material, not only wide material sources, and cheap (diatomite price is about 500 yuan/ton); In the diatomaceous absorption property process of improvement, sodium hydroxide solution can play the effect of reaming increase-volume to diatomite on the one hand, be deposited between the magnesium hydroxide on diatomite surface and diatomite on the other hand and define many new macroporous structures, further increase the adsorptive power of carrier; The adsorption rate of diatomite to molten state paraffin is 40wt%, and the diatomite adsorption rate after the modification of magnesium hydroxide surface deposition can bring up to 75wt%.
(2) the obtained organic phase change material of phase-changing energy storage material owing to adsorbing molten state, therefore surface oleophilic, compared with hollow glass micro-ball, more easily be combined with the body material of polyurethane foam, and be not easy to cause tomography, namely the continuous structure maintaining foam has good snappiness.In addition, because diatomaceous main component is silicon-dioxide, similar with hollow glass micro-ball, the effect improving hard polyurethane foams ultimate compression strength can be played equally; Also because containing part magnesium hydroxide particle in solid support material, and magnesium hydroxide also can play the effect of reinforcement, so with the addition of the foam of this kind of phase-changing energy storage material, its ultimate compression strength obviously will be better than the hard polyurethane foams adding glass microsphere.
(3) add the hard polyurethane foams polyurethane heat insulation material more in the past of phase-changing energy storage material, possessed phase-changing and temperature-regulating function, the pipe laying insulation be specially adapted under ocean current water temperature changeable environment uses; Through means of differential scanning calorimetry (DSC) test, obtained phase-changing energy storage material potential heat value remains on 50 ~ 180kJ/kg.
(4) preparation technology of the present invention is simple, controllability strong, utilizes existing industrial processing technology, and almost cost free increases, and substantially increases production efficiency, is suitable for commercial scale production and promotes.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 and comparative example 1 phase-changing and temperature-regulating effect contrast figure.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.In the present invention, wt% is massfraction.
Embodiment 1
In beaker, add 20 parts of concentration is the sodium hydroxide solution of 0.5mol/L, add 100 parts of diatomite subsequently, after diatomite fully absorbs sodium hydroxide solution, dripping 20 parts of concentration is the magnesium chloride solution of 0.5mol/L, 30min is stirred on dropping limit, limit, and speed is at 300rpm; Then be filtered to neutrality, filter cake is dry 20h at 120 DEG C, obtains support C after grinding
1; Through adsorptive power test, C
1adsorption rate for molten state paraffin is 75wt%.
Getting 30 parts of transformation temperatures is that the paraffin of 60 DEG C puts into beaker, adds 100 parts of support C after being heated to melt completely
1, open whipping device, rotating speed is stir 60min under 800rpm, obtains the carrier of Adsorption Paraffin, obtains diameter at the subsphaeroidal phase-changing energy storage material P of 5 μm through nodulizer
1.
Adopt the full water foamed formula of hard polyurethane foams, first component A (tetrahydrofuran (THF)-propylene oxide copolymer glycols 100 parts, deionized water 2 parts, trolamine 1 part, dimethyl silicone oil 2 parts) and 25 parts of phase-changing energy storage material P
1abundant mixing, adds B component (150 parts of PAPI) subsequently, stirs 30s, pour in foaming mould, self-vulcanizing 1h under 500rpm, demoulding fed to boiler solidification 2h, furnace temperature 100 DEG C, the obtained hard polyurethane foams R with phase-changing and temperature-regulating function
1; Through DSC test, R
1latent heat of phase change value be 55kJ/kg.
Comparative example 1
According to the method that CN101016366A describes, component A is mixed in a container, by predetermined proportion, B component is added in component A, wherein the mass ratio of component A and B component is 1:1.5, with stirrer with rotating speed 3000rpm high-speed stirring 10s, finally pour compound into mould, after foaming, solidification, obtain hard polyurethane foams R
2, R
2latent heat of phase change value be 6.5kJ/kg.
By hard polyurethane foams R obtained with comparative example 1 for embodiment 1
1and R
2respectively after coated stainless steel tube, load cold oil in pipe, airtight two ends, are placed in 80 DEG C of water-baths, are transferred to rapidly in the refrigerated tank of-10 DEG C after 60h fully absorbs heat, can find out, in embodiment 1, and the foam R containing phase-changing energy storage material
1its adiabatic heat insulating effect is better, and after 20h, in pipe, temperature still remains on more than 40 DEG C; And the foam R not containing phase-changing energy storage material
2, after 20h, in pipe, temperature is reduced to-5 DEG C, illustrates that the foam thermal insulation effect of heat insulation containing phase-changing energy storage material is better.
Comparative example 2
In embodiment 1, by phase-changing energy storage material P
1be replaced by diameter at the hollow glass micro-ball of 5 μm, other working method and material composition constant, obtain hard polyurethane foams R
3.Add phase-changing energy storage material and add glass microsphere as shown in table 1 for the modification situation of foam base plate.
Table 1R
1with R
3physicochemical property compares
| Evaluation index | Thermal conductivity, W/ (mK) | Density, kg/m 3 | Latent heat of phase change value, kJ/kg | Ultimate compression strength, MPa | Product cost, unit/m 3 | Deep water maximum operating temperature, DEG C |
| R 1 | 0.013 | 600 | 55 | 1.1MPa | 650 | 145 |
| R 3 | 0.265 | 800 | — | 0.5MPa | 2000 | 100 |
From table 1, the lagging material that the obtained lagging material with phase-changing and temperature-regulating function is more traditional has many-sided advantage, thermal conductivity declines further, ultimate compression strength significantly strengthens, product cost reduces, especially flexible and changeable temperature regulating range, very be applicable to ocean current temperature feature complicated and changeable in ocean, the insulation situation of ocean pipe laying is improved very well.
Embodiment 2
In embodiment 1, concentration of sodium hydroxide solution is brought up to 1.0mol/L, other working method and material form constant, make support C
2; Through adsorptive power test, C
2adsorption rate for molten state paraffin is 57wt%.With C
1contrast, C
2adsorption rate decline to some extent, illustrate that concentration of sodium hydroxide solution is not more high better, the adsorption rate of too high carrier to molten state paraffin declines on the contrary.
Embodiment 3
In embodiment 1, concentration of sodium hydroxide solution is reduced to 0.08mol/L, other working method and material form constant, make support C
3; Through adsorptive power test, C
3adsorption rate for molten state paraffin is only 42wt%.With C
1contrast, C
3adsorption rate decline obviously, the too low raising being also unfavorable for carrier adsorption rate of concentration of sodium hydroxide solution is described.
Embodiment 4
In embodiment 1, be that the number of 60 DEG C of paraffin brings up to 70 parts by transformation temperature, other working method and material form constant, the obtained hard polyurethane foams R with phase-changing and temperature-regulating function
4; Through DSC test, R
4latent heat of phase change value be 107kJ/kg.With R
1contrast finds, improves paraffin number, can increase the latent heat of phase change value of foam.
Embodiment 5
In embodiment 1, by phase-changing energy storage material P
1number is increased to 75 parts, and other working method and material form constant, the obtained hard polyurethane foams R with phase-changing and temperature-regulating function
5; Through DSC test, R
5latent heat of phase change value be 150kJ/kg.With R
1contrast finds, improves phase-changing energy storage material number, can increase the latent heat of phase change value of foam.
Embodiment 6
In embodiment 1, PAPI number is brought up to 180 parts, other working method and material form constant, the obtained hard polyurethane foams R with phase-changing and temperature-regulating function
6.With R
1contrast finds, along with the increase of PAPI number, the hardness of foam improves, and then toughness declines to some extent; Illustrate that PAPI is not The more the better.
Embodiment 7
In embodiment 1, deionized water number is increased to 5 parts, other working method and material form constant, the obtained hard polyurethane foams R with phase-changing and temperature-regulating function
7.With R
1contrast finds, along with the increase of deionized water number, the thermal conductivity of foam raises, and rises to 0.035W/ (mK) from 0.013W/ (mK), according to SY/T0415-96 standard, and R
7thermal conductivity exceeded industry standard allow scope; Illustrate that the water yield is not The more the better.
Claims (12)
1. a preparation method for marine oil and gas transport pipe lagging material, comprises following content:
(1) in the sodium hydroxide solution of 0.05 ~ 1.0mol/L, add the diatomite after the roasting of its 3 ~ 7 times of mass parts, then drip magnesium chloride solution while stirring, be filtered to filtrate in neutral, after filtration cakes torrefaction, grinding obtains carrier;
(2) organic phase change material accounting for carrier 30 as one kind wt% ~ 70wt% is heated to melt completely, adds carrier and stir, obtain the carrier adsorbing organic phase change material, make the subsphaeroidal phase-changing energy storage material of diameter 3 ~ 5 μm;
(3) the full water foamed basic recipe of hard polyurethane foams is adopted, the component A and phase-changing energy storage material that comprise polyether glycol, deionized water, catalyzer and foam stabilizer are fully mixed, add B component isocyanic ester subsequently to stir, pour into rapidly in foaming mould, self-vulcanizing, demoulding fed to boiler solidifies, the obtained marine oil and gas transport pipe lagging material with phase-changing and temperature-regulating function.
2. in accordance with the method for claim 1, it is characterized in that: in step (1), the concentration of sodium hydroxide solution is 0.1 ~ 0.7mol/L.
3. in accordance with the method for claim 1, it is characterized in that: in step (1), diatomaceous maturing temperature is 400 ~ 600 DEG C, time 3 ~ 7h.
4. according to the method described in claim 1,2 or 3, it is characterized in that: in step (1), add the diatomite after the roasting of sodium hydroxide solution 5 times of mass parts.
5. according to the method described in claim 1,2 or 3, it is characterized in that: the diatomite adding 50 ~ 150 mass parts in step (1).
6. in accordance with the method for claim 1, it is characterized in that: in step (1), the concentration of magnesium chloride solution is 0.1 ~ 0.5mol/L, and the mass ratio of magnesium chloride solution and sodium hydroxide solution is 1:1.
7. in accordance with the method for claim 1, it is characterized in that: organic phase change material is selected from stearic acid in step (2), palmitinic acid, transformation temperature are one or more in 40 ~ 80 DEG C of paraffin.
8. in accordance with the method for claim 1, it is characterized in that: the polyether glycol described in step (3) be selected from polyoxypropyleneglycol, polytetrahydrofuran diol and tetrahydrofuran (THF)-propylene oxide copolymer glycols one or more; Catalyzer be selected from dimethylethanolamine, dimethylamino hexahydroaniline, tripropyl amine, Tributylamine and trolamine one or more; Foam stabilizer be selected from dimethyl silicone oil, ethyl silicon oil, phenyl silicone oil and Methyl Hydrogen Polysiloxane Fluid one or more; Isocyanic ester be selected from tolylene diisocyanate (TDI), diphenylmethanediisocyanate (MDI), poly methylene poly phenyl poly isocyanate (PAPI) one or more.
9. in accordance with the method for claim 1, it is characterized in that: the add-on of the phase-changing energy storage material described in step (3) is the 5wt% ~ 30wt% of component A and B component total mass.
10. according to the method described in claim 1 or 8, it is characterized in that: in step (3) component A, the add-on of catalyzer is the 0.3wt% ~ 2.0wt% of polyether glycol quality, foam stabilizer add-on is the 1.0wt% ~ 4.0wt% of polyether glycol quality, and deionized water add-on is the 2.0wt% ~ 5.0wt% of polyether glycol quality.
11., according to the method described in claim 1 or 8, is characterized in that: in step (3), the mass ratio of polyether glycol and B component is 1:1.2 ~ 1:1.8.
12. in accordance with the method for claim 1, it is characterized in that: the self-vulcanizing time is 1 ~ 5h in step (3), and entering stove set time is 2 ~ 10h, furnace temperature 80 ~ 130 DEG C.
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| CN106380574A (en) * | 2016-08-30 | 2017-02-08 | 天津军星管业集团有限公司 | Environment-friendly nano particle enhanced and modified polyurethane foamed plastic, and prefabricated directly-buried thermal insulation pipe and manufacturing method thereof |
| CN107312321B (en) * | 2017-07-31 | 2019-01-25 | 陕西理工大学 | A kind of TPU composite phase-change energy storage material of foaming and preparation method thereof |
| CN111087570B (en) * | 2019-12-25 | 2022-07-12 | 万华化学（北京）有限公司 | Polyurethane foam and preparation method thereof, polyurethane foam sandwich component and preparation method and application thereof |
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| CN112979264B (en) * | 2021-04-20 | 2023-05-12 | 贵州国锐鑫节能科技有限公司 | Solar phase-change energy-storage temperature control plate and preparation method and application thereof |
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