CN105985509A - Antiaging silicon dioxide aerogel polyurethane composite thermal-insulation wallboard and preparation method thereof - Google Patents
Antiaging silicon dioxide aerogel polyurethane composite thermal-insulation wallboard and preparation method thereof Download PDFInfo
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000009413 insulation Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 14
- 239000004814 polyurethane Substances 0.000 title claims abstract description 14
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000000377 silicon dioxide Substances 0.000 title abstract description 8
- 239000004964 aerogel Substances 0.000 title abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 title abstract 2
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 8
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 7
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 6
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 6
- -1 polyethylene Polymers 0.000 claims abstract description 5
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 claims abstract description 4
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 4
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims abstract description 4
- 229920006389 polyphenyl polymer Polymers 0.000 claims abstract description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 12
- 239000000706 filtrate Substances 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 7
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000004005 microsphere Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 10
- 239000011496 polyurethane foam Substances 0.000 abstract description 10
- 230000032683 aging Effects 0.000 abstract description 3
- 239000004698 Polyethylene Substances 0.000 abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 239000004721 Polyphenylene oxide Substances 0.000 abstract 1
- 239000012975 dibutyltin dilaurate Substances 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 229920000570 polyether Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 239000011805 ball Substances 0.000 description 5
- 239000004793 Polystyrene Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 239000004965 Silica aerogel Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- 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
- C08G18/70—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
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
- E04B1/80—Heat insulating elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/88—Insulating elements for both heat and sound
- E04B1/90—Insulating elements for both heat and sound slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/942—Building elements specially adapted therefor slab-shaped
-
- 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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/10—Insulation, e.g. vacuum or aerogel insulation
Abstract
The invention discloses an antiaging silicon dioxide aerogel polyurethane composite thermal-insulation wallboard which is prepared from the following raw materials in parts by weight: 5-6 parts of magnesium hydroxide whisker, 3-3.5 parts of polyurethane resin, 0.8-1.1 parts of PE (polyethylene) wax, 4-5 parts of nano titanium dioxide, 100-105 parts of porous ceramic ball, 100 parts of water glass, a right amount of Span-80, a right amount of Tween-80, a right amount of 1 mol/L ammonia water, a right amount of acetone, a right amount of ethanol, 90-94 parts of polyether glycol DSU-365, 0.5-0.54 part of triethanolamine, 15-16 parts of water, 0.75-0.9 part of dibutyltin dilaurate and 100-110 parts of polymethylene polyphenyl polyisocyanate. The magnesium hydroxide whisker, polyurethane resin, PE wax and nano titanium dioxide are utilized to enhance the aging resistance, toughness, flame retardancy and heat resistance of the polyurethane foam and prolong the thermal insulation time efficiency.
Description
Technical field
The present invention relates to heat-insulation wall plate technical field, particularly relate to a kind of anti-aging aerosil polyurethane composite thermal insulation wallboard and preparation method thereof.
Background technology
XPS is a kind of common insulation material for building.Its density is low, mechanical strength segmentation good, corrosion-resistant, waterproof, easy construction, but its thermal conductivity factor of a relatively high (k ≈ 0.042W/m K).The characteristic such as the nano-porous structure of silica aerogel and ultralight, superadiabatic, extremely strong UV absorption, infrared external reflection significantly limit heat transfer and the thermal convection current of heat transfer process.With SiO2Aeroge/polystyrene type composite construction can reduce the thermal conductivity factor of EPS warming plate further, improves the fire resistance of EPS warming plate under conditions of not affecting EPS sheet mechanical property.Meanwhile, the two compound low, hydrophilic shortcoming of silica aerogel structural strength in actual applications that can effectively make up, reduces thermal conductivity factor simultaneously, improves its fire resistance.《SiO2Aeroge core/polystyrene shell composite flame-proof warming plate experimental study " use heat pressing dipping method that foaming agent immerses compound bead, thus obtain the SiO of expansion type2Aeroge core/polystyrene shell mould is combined bead, studies its foaming manufacture craft with steam foaming simultaneously.
But the insulation material that the method obtains is because of SiO2Aeroge is easily broken and heat-insulating property can not be continual and steady.The toughness of this insulation material, heat resistance, resistance to water, heat generation, static electricity resistance, mildew resistance, antibiotic property, intensity, resilience, ageing resistance, corrosion resistance all have much room for improvement simultaneously.Polyurethane foam has excellent heat-insulating property, but is not so good as SiO2Aeroge good heat preservation performance, but anti-flammability is bad.
Fire-retardant and excellent in mechanical performance polyurethane foam prepared in " preparation of full water foamed hard polyurethane foam and the research of fire resistance thereof " literary composition, but heat-insulating property still can not meet the needs of scientific development.
If by SiO2Aeroge is combined with polyurethane foam, it is possible to increase the heat insulating ability of polyurethane foam and anti-flammability, but direct combination, SiO2Aeroge is easily broken, heat insulation effect evanescence, requires further improvement.
Content of the invention
The object of the invention is contemplated to make up the defect of prior art, provides a kind of anti-aging aerosil polyurethane composite thermal insulation wallboard and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of anti-aging aerosil polyurethane composite thermal insulation wallboard, is prepared by the raw materials in: magnesium hydroxide crystal whisker 5-6, polyurethane resin 3-3.5, PE wax 0.8-1.1, nano titanium oxide 4-5, porous ceramic ball 100-105, waterglass the 100th, Span-80 is appropriate, Tween-80 is appropriate, 1mol/L ammoniacal liquor in right amount, acetone in proper, appropriate amount of ethanol, PPG DSU-365 90-94, triethanolamine 0.5-0.54, water 15-16, dibutyl tin laurate 0.75-0.9, poly methylene poly phenyl poly isocyanate 100-110.
The preparation method of described anti-aging aerosil polyurethane composite thermal insulation wallboard, comprises the following steps:
(1) VSpan-80:VTween-80=1:4 proportioning obtains mixing liquid by volume, mixes waterglass with described mixing liquid 1:10 by volume, stirs 30min under 400r/min, and then the ammoniacal liquor of dropping 1mol/L regulates pH value to 6-7；Add porous ceramics microballoon, nano titanium oxide, stir 10-15min, wash 2-3 time with acetone, remove supernatant liquor after standing, obtain mixed material；
(2) mixed material obtaining (1st) step adds the ethanol of 2-2.5 times of volume to stir, and is aged 48h, is filtrated to get filtrate, again filtrate is immersed in the n-hexane of 2-2.5 times of volume, filter, by filtrate at 45-46 DEG C freeze-day with constant temperature, obtain modified porous ceramic microsphere；
(3) modified porous ceramic microsphere is put in reaction vessel, add PPG DSU-365, triethanolamine, water and dibutyl tin laurate, it is pre-mixed under 2000r/min high-speed stirred, add other residual components, under 1000r/min speed, then stir 9-11s, pour in mould, at room temperature static foaming, question response cures 29-31min after finishing at a temperature of 69-70 DEG C, then after at room temperature depositing 70-72h, to obtain final product；
The upper surface of described mould is provided with ceramic wafer, and lower surface is provided with the calcium silicate board of 4-6 millimeter.
Described aerosil polyurethane composite thermal insulation wallboard, the porosity of described porous ceramic ball is 65-80%, and aperture is 100-500 μm.
The invention have the advantage that the present invention uses waterglass to prepare aerosil, aeroge is made to be filled in the hole of porous ceramic ball, react with polyurethane foam again, aerogel microball is completely wrapped, prevent from crushing, improve thermal insulation and the compression strength of polyurethane foam, also improve durability, the sound-proofing of foam；By using magnesium hydroxide crystal whisker, polyurethane resin, PE wax, nano titanium oxide, improve ageing resistance, toughness, anti-flammability and the heat resistance of polyurethane foam, extend insulation timeliness.
Detailed description of the invention
A kind of anti-aging aerosil polyurethane composite thermal insulation wallboard, is made up of the raw material of following weight portion (kilogram): the 3rd, PE wax the 0.8th, nano titanium oxide the 4th, porous ceramic ball the 100th, waterglass the 100th, Span-80 is appropriate, Tween-80 is appropriate for magnesium hydroxide crystal whisker the 5th, polyurethane resin, 1mol/L ammoniacal liquor in right amount, acetone in proper, appropriate amount of ethanol, PPG DSU-365 the 90th, triethanolamine the 0.5th, water the 15th, dibutyl tin laurate the 0.75th, poly methylene poly phenyl poly isocyanate 100.
The preparation method of described anti-aging aerosil polyurethane composite thermal insulation wallboard, comprises the following steps:
(1) VSpan-80:VTween-80=1:4 proportioning obtains mixing liquid by volume, mixes waterglass with described mixing liquid 1:10 by volume, stirs 30min under 400r/min, then drips the ammoniacal liquor regulation pH value of 1mol/L to 6；Add porous ceramics microballoon, nano titanium oxide, stir 10min, wash 2 times with acetone, remove supernatant liquor after standing, obtain mixed material；
(2) mixed material that obtains (1st) step adds the ethanol of 2 times of volumes to stir, and is aged 48h, is filtrated to get filtrate, then is immersed in filtrate in the n-hexane of 2 times of volumes, filters, by filtrate at 45 DEG C freeze-day with constant temperature, obtain modified porous ceramic microsphere；
(3) modified porous ceramic microsphere is put in reaction vessel, add PPG DSU-365, triethanolamine, water and dibutyl tin laurate, it is pre-mixed under 2000r/min high-speed stirred, add other residual components, under 1000r/min speed, then stir 9s, pour in mould, at room temperature static foaming, question response cures 29min after finishing at a temperature of 69 DEG C, then after at room temperature depositing 70h, to obtain final product；
The upper surface of described mould is provided with ceramic wafer, and lower surface is provided with the calcium silicate board of 4 millimeters.
Described aerosil polyurethane composite thermal insulation wallboard, the porosity of described porous ceramic ball is 65%, and aperture is 100 μm.
The compressive strength of this embodiment polyurethane foam is 345kPa, and the thermal conductivity factor of heat-insulation wall plate is 0.008W/ (m K).
Claims (3)
1. an anti-aging aerosil polyurethane composite thermal insulation wallboard, it is characterised in that: be prepared by the raw materials in: magnesium hydroxide crystal whisker 5-6, polyurethane resin 3-3.5, PE wax 0.8-1.1, nano titanium oxide 4-5, porous ceramic ball 100-105, waterglass the 100th, Span-80 is appropriate, Tween-80 is appropriate, 1mol/L ammoniacal liquor is appropriate, acetone in proper, appropriate amount of ethanol, PPG DSU-365 90-94, triethanolamine 0.5-0.54, water 15-16, dibutyl tin laurate 0.75-0.9, poly methylene poly phenyl poly isocyanate 100-110.
2. the preparation method of anti-aging aerosil polyurethane composite thermal insulation wallboard according to claim 1, it is characterised in that comprise the following steps:
(1) VSpan-80:VTween-80=1:4 proportioning obtains mixing liquid by volume, mixes waterglass with described mixing liquid 1:10 by volume, stirs 30min under 400r/min, and then the ammoniacal liquor of dropping 1mol/L regulates pH value to 6-7；Add porous ceramics microballoon, nano titanium oxide, stir 10-15min, wash 2-3 time with acetone, remove supernatant liquor after standing, obtain mixed material；
(2) mixed material obtaining (1st) step adds the ethanol of 2-2.5 times of volume to stir, and is aged 48h, is filtrated to get filtrate, again filtrate is immersed in the n-hexane of 2-2.5 times of volume, filter, by filtrate at 45-46 DEG C freeze-day with constant temperature, obtain modified porous ceramic microsphere；
(3) modified porous ceramic microsphere is put in reaction vessel, add PPG DSU-365, triethanolamine, water and dibutyl tin laurate, it is pre-mixed under 2000r/min high-speed stirred, add other residual components, under 1000r/min speed, then stir 9-11s, pour in mould, at room temperature static foaming, question response cures 29-31min after finishing at a temperature of 69-70 DEG C, then after at room temperature depositing 70-72h, to obtain final product；
The upper surface of described mould is provided with ceramic wafer, and lower surface is provided with the calcium silicate board of 4-6 millimeter.
3. aerosil polyurethane composite thermal insulation wallboard according to claim 1, it is characterised in that: the porosity of described porous ceramic ball is 65-80%, and aperture is 100-500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148684.9A CN105985509A (en) | 2016-03-16 | 2016-03-16 | Antiaging silicon dioxide aerogel polyurethane composite thermal-insulation wallboard and preparation method thereof |
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| CN109438662A (en) * | 2018-09-07 | 2019-03-08 | 扬州工业职业技术学院 | A kind of modified Nano TiO2The preparation method of epoxy-polyurethane composite material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109438662A (en) * | 2018-09-07 | 2019-03-08 | 扬州工业职业技术学院 | A kind of modified Nano TiO2The preparation method of epoxy-polyurethane composite material |
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