CN108148166A - Polyurethane heat-insulation composite material - Google Patents
Polyurethane heat-insulation composite material Download PDFInfo
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- CN108148166A CN108148166A CN201611101192.0A CN201611101192A CN108148166A CN 108148166 A CN108148166 A CN 108148166A CN 201611101192 A CN201611101192 A CN 201611101192A CN 108148166 A CN108148166 A CN 108148166A
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- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
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- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
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- 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
- C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- 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
- C08K5/02—Halogenated hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
- C08J2375/06—Polyurethanes from polyesters
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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
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- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Polymers & Plastics (AREA)
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- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of polyurethane heat-insulation composite material, comprising：(a) 50 20 parts by weight of polyether polyol；(b) 50 80 parts by weight of polyester polyol；(c) 90 110 parts by weight of poly methylene poly phenyl poly isocyanate (PMDI)；(d) 13 parts by weight of surfactant；(e) 0.1 0.5 parts by weight of catalyst；(f) 5 10 parts by weight of environment-friendly type physical blowing agent；(g) 0.5 3.5 parts by weight of liquid nucleating agent；(h) nanoparticle nucleated dose of 13 parts by weight；And 5 15 parts by weight of (i) continuous glass-fiber felt.The polyurethane heat-insulation composite material of the present invention can keep high intensity under cryogenic.
Description
Technical field
The invention belongs to compound polyurethane material technical fields, especially belong to the small-bore used under a kind of ultra-low temperature surroundings
High thermal insulation fiberglass reinforced type hard polyaminoester thermal insulation material and preparation method thereof.
Background technology
Polyurethane rigid foam material is deposited because its high thermal insulation is widely used in building heat preservation, refrigerator, freezer, liquefied natural gas
The fields such as storage.Wherein the storage of liquefied natural gas and transport needs are used and high thermal insulation, high intensity are kept under ultra-low temperature surroundings
And the thermal insulation material of high stability.The abscess aperture of polyurethane rigid foam material has one to the heat-insulating property and mechanical property of material
Fixed influence, it is generally accepted that reduce the thermal conductivity factor that abscess aperture advantageously reduces material, improve its compressive strength.However it
Significant shrinkage can occur under ultralow temperature and cannot keep its mechanical strength at normal temperatures, thus may be used and cheap glass
It carries out compound enhancing the mechanical property and dimensional stability of polyurethane material at low temperature, and pass through and add in certain fire retardant
To improve the flame retardant rating of polyurethane.Patent CN101235128A discloses a kind of density using continuous lod in 400-
800kg/m3Polyurethane foamed material, but material be suitable for " bearing structure material ", can not be used under ultra-low temperature surroundings
Heat preservation.Patent CN101191010A discloses the polyurethane foamed material of continuous lod, but material is equally not used as surpassing
Low-temperature insulation material.Patent CN1834130A discloses a kind of density in 115-135kg/m3Compressive strength is 1.4-1.7MPa's
Thermal insulation material, but patent does not provide detailed thermal conductivity factor to the heat-insulating property of material；Patent CN101781395A is disclosed
A kind of density is in 40-80kg/m3Short glass fiber enhancing polyurethane heat insulation material, however patent does not mention material ultralow
Mechanical property in the case of temperature.The invention discloses a kind of green-blowing agent production rigid poly urethanes by patent CN 103382263
The method of foam, this method can overcome the storage instability problem of premix, and will not generate limitation to the use of catalyst,
But product involved by the patent is the density used under room temperature in 50kg/m3Following polyurethane rigid foam material.
In conclusion have not yet to see about can under condition of ultralow temperature (- 170 DEG C) holding high intensity small-bore
The report of high thermal insulation fiberglass reinforced type hard polyaminoester thermal insulation material and preparation method thereof.
Invention content
The purpose of the present invention is to provide a kind of polyurethane heat-insulation composite materials, can keep high-strength under cryogenic
Degree.
Polyurethane heat-insulation composite material provided by the invention includes：(a) polyether polyol 50-20 parts by weight；(b) polyester is more
First alcohol 50-80 parts by weight；(c) poly methylene poly phenyl poly isocyanate (PMDI) 90-110 parts by weight；(d) surfactant 1-
3 parts by weight；(e) catalyst 0.1-0.5 parts by weight；(f) environment-friendly type physical blowing agent 5-10 parts by weight；(g) liquid nucleating agent
0.5-3.5 parts by weight；(h) nanoparticle nucleated dose of 1-3 parts by weight；And (i) continuous glass-fiber felt 5-15 parts by weight.
In some embodiments, the hydroxyl value of the polyether polyol is 400-800mgKOH/g, and viscosity is in 2000-
10000mPaS (25 DEG C), degree of functionality 3-5.
In some embodiments, the hydroxyl value of the polyester polyol is 100-400mgKOH/g, viscosity 3000-
6000mPaS (25 DEG C), degree of functionality 2-4.
In some embodiments, the isocyano-content of the poly methylene poly phenyl poly isocyanate (PMDI) is
30-33wt%, viscosity are 100-300mPaS (25 DEG C), degree of functionality 2.5-3.
In some embodiments, the surfactant be polyether-modified organo-silicon compound, used catalyst
Compound for dimethyl cyclammonium, N- methylimidazoles, dibutyl tin laurate and formic acid.
In some embodiments, foaming agent used is HCFO-1233zd trifluoro propenes (LBA) or HFO-1336mmz (six
Fluorine butylene) one or two kinds of mixture.
In some embodiments, liquid nucleating agent used is perflenapent, perflexane, PF 5070, perfluorooctane
In one or two kinds of mixture.
In some embodiments, nanoparticle nucleated dose used be nano aluminium oxide, nano magnesia, nanometer cover it is de-
One kind in soil, nano silicon dioxide.
In some embodiments, the coupling agent of 0.5-2.5%, glass fibre are contained in the surface of the continuous glass-fiber felt
Apparent density in 400-450g/m2。
In some embodiments, preparation process is as described below：By 8-12 layers of continuous glass-fiber felt be uniformly laid on mold it
In, other each components enter high pressure foaming machine high-speed stirred through pipeline by raw material storage tank and are cast in continuous glass-fiber felt after mixing
On, liquid charging stock starts to foam after thoroughly infiltrating glass fiber material, and foam curing is demoulded after about 2 hours and is put into 30 DEG C of insulated buildings
After curing 72 hours, the polyurethane heat-insulation composite material of the present invention is obtained.Finally, which is surveyed
Examination.
Compared to the prior art, the high adiabatic fiberglass reinforced type in small-bore used under ultra-low temperature surroundings provided by the invention is hard
Matter polyurethane heat insulation material, can under ultra-low temperature surroundings (- 170 DEG C) keep high thermal insulations and high intensity.
Specific embodiment
The present invention can be further appreciated that by the following example, following embodiment herein as illustrative purposes only, Er Feiyong
To limit the scope of the invention.In this application unless otherwise indicated, all quantity and ratio are by weight, and unit is metric system.
The present invention is in view of the deficienciess of the prior art, to provide a kind of used under ultra-low temperature surroundings small-bore high adiabatic
Fiberglass reinforced type hard polyaminoester thermal insulation material, this material have (- 170 DEG C) the holding high thermal insulations under ultra-low temperature surroundings
And high intensity.
The present invention is achieved through the following technical solutions：
The present invention provides the high adiabatic fiberglass reinforced type hard polyaminoesters in small-bore used under a kind of ultra-low temperature surroundings to protect
The preparation method of adiabator, component content are：
(a) polyether polyol 50-20 parts by weight；
(b) polyester polyol 50-80 parts by weight；
(c) poly methylene poly phenyl poly isocyanate (PMDI) 90-110 parts by weight；
(d) surfactant 1-3 parts by weight；
(e) catalyst 0.1-0.5 parts by weight；
(f) environment-friendly type physical blowing agent 5-10 parts by weight；
(g) liquid nucleating agent 0.5-3.5 parts by weight；
(h) nanoparticle nucleated dose of 1-3 parts by weight；And
(i) continuous glass-fiber felt 5-15 parts by weight.
The hydroxyl value of the polyether polyol is 400-800mgKOH/g, and preferably 450-550mgKOH/g, viscosity is in 2000-
10000mPaS (25 DEG C), preferably 3000-4000mPaS (25 DEG C), preferably degree of functionality 3-5,4-5.
The hydroxyl value of the polyester polyol is 100-400mgKOH/g, preferably 200-300mgKOH/g, viscosity 3000-
6000mPaS (25 DEG C), preferably 3000-4000mPaS (25 DEG C) degree of functionality are 2-4, preferably 2-3.
The isocyano-content of the poly methylene poly phenyl poly isocyanate (PMDI) is 30-33wt%, and viscosity is
100-300mPaS (25 DEG C) or 300-800mPaS (25 DEG C), degree of functionality 2.5-3.
The surfactant is polyether-modified organo-silicon compound, and the catalyst is dimethyl cyclammonium, N-
The compound of methylimidazole, dibutyl tin laurate and formic acid.
The foaming agent for HCFO-1233zd trifluoro propenes (LBA) or HFO-1336mmz (hexafluorobutene) one kind or
Two kinds of mixture, preferably HCFO-1233zd trifluoro propenes (LBA) and HFO-1336mmz (hexafluorobutene) mass ratio are 1:1
Mixed foaming agent.
The liquid nucleating agent is perflenapent, one or two kinds of in perflexane, PF 5070, perfluorooctane
Mixture, preferably perflexane and PF 5070, dosage are 0.5-3.5 parts by weight, preferably 2-3 parts by weight；
Described nanoparticle nucleated dose is nano aluminium oxide, in nano magnesia, nano imvite, nano silicon dioxide
One kind, preferably aluminium oxide 100-200 nanometers a diameter of, dosage are 1-3 parts by weight, preferably 1-2 parts by weight；
The coupling agent of 0.5-2.5%, the preferably coupling agent of 0.5-1.5% are contained in the surface of the continuous glass-fiber felt,
The more preferably coupling agent of 1.0-1.2%, the apparent density of glass fibre is 400-450g/m2, preferably 400-420g/m2。
The invention further relates to following preparation method, preparation process is as described below：8-12 layers of continuous glass-fiber felt is uniformly spread
Among mold, then each component raw material is mixed under hyperbaric environment through the mixed at high speed head that rotating speed is 4000-6000 revs/min
It is squeezed among mold after conjunction, liquid charging stock starts to foam after thoroughly infiltrating glass fiber material, and foam curing was demoulded and put after about 2 hours
Enter after being cured 72 hours in 30 DEG C of insulated buildings, obtain the polyurethane heat-insulation composite material of the present invention.Finally, to the polyurethane heat-insulation
Composite material is tested.
The material quality number ratio of table 1 embodiment 1-7 and comparative example 1-2
The Performance Evaluation that above-described embodiment prepares gained composite foam material is as follows：
Product density：Foam in mold is taken out, remove epidermis and cuts into cube, according to GB/T6343-2009
It is tested.
Thermal conductivity factor：By expanded material cut growth 300mm, wide 300mm, thickness is the sample of 30mm, in -170 DEG C of items
It is tested under part.
Rate of closed hole：Expanded material is cut into the sample of 30mm × 30mm × 50mm, according to GB/T10799-1989-
It is tested under the conditions of 170 DEG C.
Compressive strength：Expanded material is cut into the sample of 50mm × 50mm × 50mm, according to GB/T8813-2008-
It is tested under the conditions of 170 DEG C.
The performance of 2. embodiment 1-7 of table and comparative example
The invention discloses the high adiabatic fiberglass reinforced type hard polyaminoesters in small-bore used under a kind of ultra-low temperature surroundings to protect
Adiabator and preparation method thereof.The composition of the polyurethane heat insulation material is polyether polyol, polyester polyol, the more benzene of polymethylene
The continuous glass-fiber felt of Quito isocyanates, surface through coupling agent treatment, environment-friendly type physical blowing agent, surfactant, catalyst,
Liquid nucleating agent.Continuous glass-fiber felt of the multilayer through drying process is uniformly laid in metal die, other each components are stored up by raw material
Tank enters high pressure foaming machine high-speed stirred through pipeline and is cast in after mixing on continuous glass-fiber felt, and liquid charging stock thoroughly infiltrates glass
Start to foam after fiber material, after foam curing demoulds after about 2 hours and is put into the interior curing of 30 DEG C of insulated buildings 48 hours, finally carry out
Test.The present invention is added to liquid nucleating agent and nanoparticle nucleated dose in formula, compared to common polyurethane rigid foam material,
Aperture smaller, thermal conductivity factor is lower, and material prepared can be used in -173 DEG C of ultra-low temperature surroundings, and product density is in 110-130kg/
m3, under the conditions of -173 DEG C, product thermal conductivity factor is less than 16.5mw/m.k, and rate of closed hole is more than 98%.
It while the invention has been described with reference to the preferred embodiments, but it will be understood by those skilled in the art that can
With make it is a variety of change and equivalent can replace its element, without departing from the scope of the present invention.Furthermore it is possible to it makes perhaps
It is improve so that specific situation or material are suitable for the invention teachings, without departing from its base region more.Therefore, I
Be intended to make that the present invention is not limited to as the particular embodiment implemented the contemplated best way of the present invention and disclosed, the present invention will
Including falling into whole embodiments in the scope of the appended claims.
Claims (10)
1. a kind of polyurethane heat-insulation composite material, which is characterized in that include：
(a) polyether polyol 50-20 parts by weight；
(b) polyester polyol 50-80 parts by weight；
(c) poly methylene poly phenyl poly isocyanate (PMDI) 90-110 parts by weight；
(d) surfactant 1-3 parts by weight；
(e) catalyst 0.1-0.5 parts by weight；
(f) environment-friendly type physical blowing agent 5-10 parts by weight；
(g) liquid nucleating agent 0.5-3.5 parts by weight；
(h) nanoparticle nucleated dose of 1-3 parts by weight；And
(i) continuous glass-fiber felt 5-15 parts by weight.
2. polyurethane heat-insulation composite material according to claim 1, which is characterized in that the hydroxyl value of the polyether polyol
For 400-800mgKOH/g, viscosity is in 2000-10000mPaS (25 DEG C), degree of functionality 3-5.
3. polyurethane heat-insulation composite material according to claim 1, which is characterized in that the hydroxyl value of the polyester polyol
For 100-400mgKOH/g, viscosity is 3000-6000mPaS (25 DEG C), degree of functionality 2-4.
4. polyurethane heat-insulation composite material according to claim 1, which is characterized in that the polymethylene polyphenyl is more
The isocyano-content of isocyanates (PMDI) is 30-33wt%, and viscosity is 100-300mPaS (25 DEG C), and degree of functionality is
2.5-3。
5. polyurethane heat-insulation composite material according to claim 1, which is characterized in that the surfactant is polyethers
Modified organo-silicon compound, used catalyst are dimethyl cyclammonium, N- methylimidazoles, dibutyl tin laurate and formic acid
Compound.
6. polyurethane heat-insulation composite material according to claim 1, it is characterised in that foaming agent used is HCFO-1233zd
One or two kinds of mixture of trifluoro propene (LBA) or HFO-1336mmz (hexafluorobutene).
7. polyurethane heat-insulation composite material according to claim 1, it is characterised in that liquid nucleating agent used is perfluor penta
One or two kinds of mixture in alkane, perflexane, PF 5070, perfluorooctane.
8. polyurethane heat-insulation composite material according to claim 1, it is characterised in that nanoparticle nucleated dose used is is received
One kind in rice aluminium oxide, nano magnesia, nano imvite, nano silicon dioxide.
9. polyurethane heat-insulation composite material according to claim 1, which is characterized in that the surface of the continuous glass-fiber felt
Coupling agent containing 0.5-2.5%, the apparent density of glass fibre is in 400-450g/m2。
10. a kind of preparation method of polyurethane heat-insulation composite material, which is characterized in that include：By 8-12 layers of continuous glass-fiber felt
It is uniformly laid among mold, other each components enter high pressure foaming machine high-speed stirred through pipeline by raw material storage tank and pour after mixing
It builds on continuous glass-fiber felt, liquid charging stock starts to foam after thoroughly infiltrating glass fiber material, and foam curing was demoulded and put after about 2 hours
Enter after being cured 72 hours in 30 DEG C of insulated buildings, obtain polyurethane heat-insulation composite material.
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| CN201611101192.0A CN108148166A (en) | 2016-12-05 | 2016-12-05 | Polyurethane heat-insulation composite material |
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| CN201611101192.0A CN108148166A (en) | 2016-12-05 | 2016-12-05 | Polyurethane heat-insulation composite material |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109294218A (en) * | 2018-09-28 | 2019-02-01 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane foam feedstock composition, from its polyurethane foam and its preparation method and application |
| WO2019067572A1 (en) * | 2017-09-28 | 2019-04-04 | Dow Global Technologies Llc | Polyurethane rigid foam system with enhanced polyol shelf life and stability |
| CN109851740A (en) * | 2019-01-22 | 2019-06-07 | 安徽中科都菱商用电器股份有限公司 | The foamed heat-insulating material and preparation method thereof of medical ultra low temperature freezer |
| CN110804150A (en) * | 2019-11-14 | 2020-02-18 | 江苏雅克科技股份有限公司 | Three-dimensional direction reinforced polyurethane thermal insulation material and preparation method thereof |
| CN110804149A (en) * | 2019-11-14 | 2020-02-18 | 江苏雅克科技股份有限公司 | Reinforced polyurethane thermal insulation material for LNG liquid cargo containment system and preparation method thereof |
| CN111363112A (en) * | 2018-12-25 | 2020-07-03 | 长春安旨科技有限公司 | Low-temperature-resistant polyurethane foam material and preparation method thereof |
| CN113097940A (en) * | 2021-04-14 | 2021-07-09 | 重庆杰友电气材料有限公司 | Sun-shading protective cover |
| CN113462145A (en) * | 2021-07-12 | 2021-10-01 | 洛阳双瑞橡塑科技有限公司 | Fiber-reinforced polyurethane wood-like material and forming method thereof |
| CN113717344A (en) * | 2021-08-20 | 2021-11-30 | 浙江浦森新材料科技有限公司 | Two-dimensional orientation continuous glass fiber reinforced hard polyurethane foam plastic and preparation method thereof |
| CN115572362A (en) * | 2022-10-19 | 2023-01-06 | 江苏雅克科技股份有限公司 | Superfine glass fiber continuous felt reinforced polyurethane thermal insulation material and preparation method and application thereof |
| CN117736406A (en) * | 2024-02-21 | 2024-03-22 | 江苏绿源新材料有限公司 | Tank type container heat insulation structure and preparation method of heat insulation material thereof |
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| WO2019067572A1 (en) * | 2017-09-28 | 2019-04-04 | Dow Global Technologies Llc | Polyurethane rigid foam system with enhanced polyol shelf life and stability |
| CN109294218A (en) * | 2018-09-28 | 2019-02-01 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane foam feedstock composition, from its polyurethane foam and its preparation method and application |
| CN111363112A (en) * | 2018-12-25 | 2020-07-03 | 长春安旨科技有限公司 | Low-temperature-resistant polyurethane foam material and preparation method thereof |
| CN109851740A (en) * | 2019-01-22 | 2019-06-07 | 安徽中科都菱商用电器股份有限公司 | The foamed heat-insulating material and preparation method thereof of medical ultra low temperature freezer |
| CN110804150A (en) * | 2019-11-14 | 2020-02-18 | 江苏雅克科技股份有限公司 | Three-dimensional direction reinforced polyurethane thermal insulation material and preparation method thereof |
| CN110804149A (en) * | 2019-11-14 | 2020-02-18 | 江苏雅克科技股份有限公司 | Reinforced polyurethane thermal insulation material for LNG liquid cargo containment system and preparation method thereof |
| CN113097940A (en) * | 2021-04-14 | 2021-07-09 | 重庆杰友电气材料有限公司 | Sun-shading protective cover |
| CN113462145A (en) * | 2021-07-12 | 2021-10-01 | 洛阳双瑞橡塑科技有限公司 | Fiber-reinforced polyurethane wood-like material and forming method thereof |
| CN113717344A (en) * | 2021-08-20 | 2021-11-30 | 浙江浦森新材料科技有限公司 | Two-dimensional orientation continuous glass fiber reinforced hard polyurethane foam plastic and preparation method thereof |
| CN115572362A (en) * | 2022-10-19 | 2023-01-06 | 江苏雅克科技股份有限公司 | Superfine glass fiber continuous felt reinforced polyurethane thermal insulation material and preparation method and application thereof |
| CN117736406A (en) * | 2024-02-21 | 2024-03-22 | 江苏绿源新材料有限公司 | Tank type container heat insulation structure and preparation method of heat insulation material thereof |
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