CN104294942B - Composite evacuated heat insulating board of foam cement and preparation method thereof - Google Patents
Composite evacuated heat insulating board of foam cement and preparation method thereof Download PDFInfo
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- CN104294942B CN104294942B CN201410622758.9A CN201410622758A CN104294942B CN 104294942 B CN104294942 B CN 104294942B CN 201410622758 A CN201410622758 A CN 201410622758A CN 104294942 B CN104294942 B CN 104294942B
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- Prior art keywords
- foam cement
- cement
- mortar
- insulating plate
- vacuum heat
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- 239000004568 cement Substances 0.000 title claims abstract description 85
- 239000006260 foam Substances 0.000 title claims abstract description 80
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims description 9
- 230000004888 barrier function Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 18
- 238000005538 encapsulation Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 80
- 239000011083 cement mortar Substances 0.000 claims description 33
- 239000000835 fiber Substances 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- -1 polypropylene Polymers 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 239000004604 Blowing Agent Substances 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 8
- 235000013539 calcium stearate Nutrition 0.000 claims description 8
- 239000008116 calcium stearate Substances 0.000 claims description 8
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 8
- 241000276489 Merlangius merlangus Species 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 7
- 150000004645 aluminates Chemical class 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 7
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 7
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 7
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 7
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 239000000292 calcium oxide Substances 0.000 claims description 6
- 235000012255 calcium oxide Nutrition 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 6
- 239000001095 magnesium carbonate Substances 0.000 claims description 6
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 229910021487 silica fume Inorganic materials 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 229910001570 bauxite Inorganic materials 0.000 claims description 4
- 238000006884 silylation reaction Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 4
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 4
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000011975 tartaric acid Substances 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 22
- 239000011162 core material Substances 0.000 description 18
- 229920000742 Cotton Polymers 0.000 description 8
- 239000004744 fabric Substances 0.000 description 8
- 239000011491 glass wool Substances 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 6
- 239000010451 perlite Substances 0.000 description 6
- 235000019362 perlite Nutrition 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000011490 mineral wool Substances 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 229910002012 Aerosil® Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- YSZKOFNTXPLTCU-UHFFFAOYSA-N barium lithium Chemical compound [Li].[Ba] YSZKOFNTXPLTCU-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229910052599 brucite Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920006284 nylon film Polymers 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920006289 polycarbonate film Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000005033 polyvinylidene chloride Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
Classifications
-
- 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
- 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
- Y02A30/242—Slab shaped vacuum 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 present invention relates to the composite evacuated heat insulating board of a kind of foam cement, comprise vacuum heat-insulating plate and the foam cement being coated on its periphery; Described vacuum heat-insulating plate comprises core, high strength gas barrier film and boundary mortar, described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core, be coated with one deck boundary mortar in the periphery of described high strength gas barrier film, the thickness of this boundary mortar is 2 ~ 3mm.Advantage of the present invention is: the problem solving vacuum heat-insulating plate breakage gas leakage in work progress, construction install convenience, and it has excellent heat insulating ability, water resistance, durability and frost resistance, and burning grade is not for firing or difficult combustion, and fireproof performance is excellent.
Description
Technical field
The present invention relates to a kind of external wall compound insulating material, definite is composite evacuated heat insulating board of a kind of foam cement and preparation method thereof.
Technical background
Vacuum heat-insulating plate fire-protection rating common at present can be up to state standards and not fire or difficult combustion, and heat insulation effect is good.But they are easily scraped off in work progress, occur hollowing, gas leak phenomenon, utilization rate reduces greatly.
Summary of the invention
The object of the invention is the damage phenomenon occurred in work progress to overcome vacuum heat-insulating material, providing a kind of easy construction, good effect of heat insulation, the composite evacuated heat insulating board of A level fireproof foam cement.Technical scheme of the present invention is: the composite evacuated heat insulating board of a kind of foam cement, is characterized in that: comprise vacuum heat-insulating plate and the foam cement being coated on its periphery.
Described vacuum heat-insulating plate comprises core, high strength gas barrier film and boundary mortar, described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core, be coated with one deck boundary mortar in the periphery of described high strength gas barrier film, the thickness of this boundary mortar is 0.1 ~ 3mm.
Described vacuum heat-insulating plate comprises core and high strength gas barrier film, and described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core.
Described boundary mortar is prepared by the following method and obtains, take following raw material: cement 30 ~ 45 parts, 30-50 object quartz sand 5 ~ 10 parts, coarse whiting 7 ~ 10 parts, SILICA FUME 3 ~ 5 parts, rubber powder 4 ~ 7 parts, Admixture 3 parts, emulsion 15 ~ 20 parts, by the abundant mix and blend of each raw material after taking, to obtain final product.
Cement in described boundary mortar adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
Described Admixture is the mixture obtained after polypropylene fibre, tartaric acid, hydroxypropyl methylcellulose, lignin and polyvinyl alcohol combine in any proportion.
Described foam cement is each component composition of following weight portion: cement 50-70 part, flyash 20-30 part, rubber powder 4-8 part, coarse whiting 8-15 part, calcium stearate 1-3 part, accelerating admixture 0.5-1 part, hydrophober 0.2-0.5 part, hydroxypropyl methylcellulose 0.5-1 part, polypropylene fibre 0.2-0.5 part.
Described cement adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
Described hydrophober is any one in calcium stearate, zinc stearate, silylation powder additive.
The grog that described accelerating admixture is bauxite, quicklime, soda ash are fired in any proportion.
The length of described polypropylene fibre is 6mm or 9mm.
A preparation method for the composite evacuated heat insulating board of foam cement, comprises the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is less than the area of mould, and six of vacuum heat-insulating plate all keep identical distance 5-15mm with between mould, then the foam cement mortar that 2-15mm is thick is built in the above, also built the foam cement mortar that at least 2mm is thick between side and template for other four of vacuum insulation panel simultaneously, make foam cement mortar by coated for whole vacuum heat-insulating plate, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
A preparation method for the composite evacuated heat insulating board of foam cement, comprises the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is the same with the area of mould, and four of vacuum heat-insulating plate sides just in time contact with mould, then the foam cement mortar that 2-15mm is thick is built in the above, make foam cement mortar by coated for whole vacuum heat-insulating plate upper and lower surfaces, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
Advantage of the present invention is: the problem solving vacuum heat-insulating plate breakage gas leakage in work progress, construction install convenience, and it has excellent heat insulating ability, water resistance, durability and frost resistance, and burning grade is not for firing or difficult combustion, and fireproof performance is excellent.
Detailed description of the invention
Embodiment 1:
The composite evacuated heat insulating board of a kind of foam cement, comprises vacuum heat-insulating plate and the foam cement being coated on its periphery.
Described vacuum heat-insulating plate comprises core, high strength gas barrier film and boundary mortar, described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core, be coated with one deck boundary mortar in the periphery of described high strength gas barrier film, the thickness of this boundary mortar is 0.1 ~ 3mm.
Described core is by microfine silica powder 40-90wt%, inserts 0-45wt%, inorganic core material 0-20wt%, fiber 1-18wt%, getter 0-3wt%, vacuum stabilizer 0-3wt%.
Described microfine silica powder is one or more mixtures according to arbitrary proportion mixing composition in silica flour, silicon ash, pozzolan, SILICA FUME, perlite powder, SiO 2 powder, its bulk density is 80-280kg/m3, specific area is 10-39m2/g, and average grain diameter is 0.1-2 micron.
Described inserts is one or more mixtures according to arbitrary proportion composition in flyash, expanded perlite, close hole perlite, glass bead, sawdust, wood chip, crop stalk crushed material, shredded paper bits, glass wool chip, foam, rock wool debris, granules of polystyrene, dry mud, kieselguhr, super glass wool, centrifugally glass-wool, rock wool, aluminic acid aluminum fiber, ceramic fibre.
Described inorganic core material is one or more mixtures according to arbitrary proportion composition in aeroge, aerosil, precipitated silica, white carbon.
Described fiber is one or more mixtures according to arbitrary proportion composition in glass chopped silk, super glass wool, flame cotton, aluminium silicate wool, ceramic fiber cotton, brucite fiber, foam, cotton, synthetic cotton, its length is 3-12mm, and fibre diameter is 0.2-13 micron.
Described getter is one or more mixtures according to arbitrary proportion composition in active carbon, barium lithium alloy activator, calcium oxide, magnesia, silica gel.
Described vacuum stabilizer is a kind of or the two mixture according to arbitrary proportion composition in carborundum and superfine fibre active carbon material.
Described high strength gas barrier film is composited by the overcoat in outside and the sealant of inner side; Wherein, overcoat is composited by one or more in glass-fiber-fabric, non-woven fabrics, carbon-fiber cloth, basalt fiber cloth, ceramic fiber cloth, woven fabric; Sealant is composited by aluminium foil, aluminizer, polyester film, nylon film, polyethylene sheeting, polyvinyl chloride film, polystyrene film, polyvinylidene chloride, polyvinyl alcohol film, ethylene-vinyl acetate copolymer film, ethylene-vinyl alcohol copolymer film, polycarbonate film, polyacrylic one or more.
Described boundary mortar is prepared by the following method and obtains, take following raw material: cement 30 ~ 45 parts, 30-50 object quartz sand 5 ~ 10 parts, coarse whiting 7 ~ 10 parts, SILICA FUME 3 ~ 5 parts, rubber powder 4 ~ 7 parts, Admixture 3 parts, emulsion 15 ~ 20 parts, by the abundant mix and blend of each raw material after taking, to obtain final product.
Cement in described boundary mortar adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
Described Admixture is the mixture obtained after polypropylene fibre, tartaric acid, hydroxypropyl methylcellulose, lignin and polyvinyl alcohol combine in any proportion.
Described foam cement is each component composition of following weight portion: cement 50-70 part, flyash 20-30 part, rubber powder 4-8 part, coarse whiting 8-15 part, calcium stearate 1-3 part, accelerating admixture 0.5-1 part, hydrophober 0.2-0.5 part, hydroxypropyl methylcellulose 0.5-1 part, polypropylene fibre 0.2-0.5 part.
Described cement adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
Described hydrophober is any one in calcium stearate, zinc stearate, silylation powder additive.
The grog that described accelerating admixture is bauxite, quicklime, soda ash are fired in any proportion.
The length of described polypropylene fibre is 6mm or 9mm.
A preparation method for the composite evacuated heat insulating board of foam cement, comprises the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is less than the area of mould, and six of vacuum heat-insulating plate all keep identical distance 5-15mm with between mould, then the foam cement mortar that 2-15mm is thick is built in the above, also built the foam cement mortar that at least 2mm is thick between side and template for other four of vacuum insulation panel simultaneously, make foam cement mortar by coated for whole vacuum heat-insulating plate, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
Embodiment 2:
The composite evacuated heat insulating board of a kind of foam cement, comprises vacuum heat-insulating plate and the foam cement being coated on its periphery.
Described vacuum heat-insulating plate comprises core and high strength gas barrier film, and described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core.
Described core is by microfine silica powder 40-90wt%, inserts 0-45wt%, inorganic core material 0-20wt%, fiber 1-18wt%, getter 0-3wt%, vacuum stabilizer 0-3wt%.
Described microfine silica powder is one or more mixtures according to arbitrary proportion mixing composition in silica flour, silicon ash, pozzolan, SILICA FUME, perlite powder, SiO 2 powder, its bulk density is 80-280kg/m3, specific area is 10-39m2/g, and average grain diameter is 0.1-2 micron.
Described inserts is one or more mixtures according to arbitrary proportion composition in flyash, expanded perlite, close hole perlite, glass bead, sawdust, wood chip, crop stalk crushed material, shredded paper bits, glass wool chip, foam, rock wool debris, granules of polystyrene, dry mud, kieselguhr, super glass wool, centrifugally glass-wool, rock wool, aluminic acid aluminum fiber, ceramic fibre.
Described inorganic core material is one or more mixtures according to arbitrary proportion composition in aeroge, aerosil, precipitated silica, white carbon.
Described fiber is one or more mixtures according to arbitrary proportion composition in glass chopped silk, super glass wool, flame cotton, aluminium silicate wool, ceramic fiber cotton, brucite fiber, foam, cotton, synthetic cotton, its length is 3-12mm, and fibre diameter is 0.2-13 micron.
Described getter is one or more mixtures according to arbitrary proportion composition in active carbon, barium lithium alloy activator, calcium oxide, magnesia, silica gel.
Described vacuum stabilizer is a kind of or the two mixture according to arbitrary proportion composition in carborundum and superfine fibre active carbon material.
Described high strength gas barrier film is composited by the overcoat in outside and the sealant of inner side; Wherein, overcoat is composited by one or more in glass-fiber-fabric, non-woven fabrics, carbon-fiber cloth, basalt fiber cloth, ceramic fiber cloth, woven fabric; Sealant is composited by aluminium foil, aluminizer, polyester film, nylon film, polyethylene sheeting, polyvinyl chloride film, polystyrene film, polyvinylidene chloride, polyvinyl alcohol film, ethylene-vinyl acetate copolymer film, ethylene-vinyl alcohol copolymer film, polycarbonate film, polyacrylic one or more.
Described foam cement is each component composition of following weight portion: cement 50-70 part, flyash 20-30 part, rubber powder 4-8 part, coarse whiting 8-15 part, calcium stearate 1-3 part, accelerating admixture 0.5-1 part, hydrophober 0.2-0.5 part, hydroxypropyl methylcellulose 0.5-1 part, polypropylene fibre 0.2-0.5 part.
Described cement adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
Described hydrophober is any one in calcium stearate, zinc stearate, silylation powder additive.
The grog that described accelerating admixture is bauxite, quicklime, soda ash are fired in any proportion.
The length of described polypropylene fibre is 6mm or 9mm.
A preparation method for the composite evacuated heat insulating board of foam cement, comprises the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is the same with the area of mould, and four of vacuum heat-insulating plate sides just in time contact with mould, then the foam cement mortar that 2-15mm is thick is built in the above, make foam cement mortar by coated for whole vacuum heat-insulating plate upper and lower surfaces, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
Claims (10)
1. the composite evacuated heat insulating board of foam cement, is characterized in that: comprise vacuum heat-insulating plate and the foam cement being coated on its periphery; Described foam cement is each component composition of following weight portion: cement 50-70 part, flyash 20-30 part, rubber powder 4-8 part, coarse whiting 8-15 part, calcium stearate 1-3 part, accelerating admixture 0.5-1 part, hydrophober 0.2-0.5 part, hydroxypropyl methylcellulose 0.5-1 part, polypropylene fibre 0.2-0.5 part.
2. the composite evacuated heat insulating board of foam cement according to claim 1, it is characterized in that: described vacuum heat-insulating plate comprises core, high strength gas barrier film and boundary mortar, described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core, be coated with one deck boundary mortar in the periphery of described high strength gas barrier film, the thickness of this boundary mortar is 0.1 ~ 3mm.
3. the composite evacuated heat insulating board of foam cement according to claim 1, it is characterized in that: described vacuum heat-insulating plate comprises core and high strength gas barrier film, described high strength gas barrier film is wrapped in the periphery of core, and and by vacuumizing encapsulation between core.
4. the composite evacuated heat insulating board of foam cement according to claim 2, it is characterized in that: described boundary mortar is prepared by the following method and obtains, take following raw material: cement 30 ~ 45 parts, 30-50 object quartz sand 5 ~ 10 parts, coarse whiting 7 ~ 10 parts, SILICA FUME 3 ~ 5 parts, rubber powder 4 ~ 7 parts, Admixture 3 parts, emulsion 15 ~ 20 parts, by the abundant mix and blend of each raw material after taking, to obtain final product.
5. the composite evacuated heat insulating board of foam cement according to claim 4, is characterized in that: the cement in described boundary mortar adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum.
6. the composite evacuated heat insulating board of foam cement according to claim 5, is characterized in that: described Admixture is the mixture obtained after polypropylene fibre, tartaric acid, hydroxypropyl methylcellulose, lignin and polyvinyl alcohol combine in any proportion.
7. the composite evacuated heat insulating board of foam cement according to claim 1, is characterized in that: described cement adopts one or more mixtures formed in any proportion in portland cement, aluminate cement, sulphate aluminium cement, ferrous aluminate cement, magnesia cement, high strength gypsum;
Described hydrophober is any one in calcium stearate, zinc stearate, silylation powder additive;
The grog that described accelerating admixture is bauxite, quicklime, soda ash are fired in any proportion.
8. the composite evacuated heat insulating board of foam cement according to claim 7, is characterized in that: the length of described polypropylene fibre is 6mm or 9mm.
9. a preparation method for the composite evacuated heat insulating board of the foam cement as described in one of claim 2-8, is characterized in that: comprise the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is less than the area of mould, and six of vacuum heat-insulating plate all keep identical distance 5-15mm with between mould, then the foam cement mortar that 2-15mm is thick is built in the above, also built the foam cement mortar that at least 2mm is thick between side and template for other four of vacuum insulation panel simultaneously, make foam cement mortar by coated for whole vacuum heat-insulating plate, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
10. a preparation method for the composite evacuated heat insulating board of the foam cement as described in one of claim 2-8, is characterized in that: comprise the following steps:
(1), after each component preparing foam cement being weighed, fully mix, obtain mixture;
(2) put in mixer after being mixed with water by the mixture obtained in step (1) and stir 10min, ensure fully to mix, the mass ratio of mixture that wherein water and above-mentioned each component form is 1:1.5;
(3) foam cement mortar is prepared: be that the ratio of 1:25 mixes with weight ratio by water and blowing agent, at the pressure lower frothing of 0.2Mpa, mix with mixture paste, fully stir, namely obtain foam cement mortar; Described blowing agent is any one in calcium carbonate, magnesium carbonate, sodium acid carbonate, silicate of soda, carborundum, carbon black;
(4) mould of specification is got, the foam cement mortar that one deck 2-15mm is thick is first divided in bottom surface, put into the vacuum heat-insulating plate of specification again, the area of this vacuum heat-insulating plate is the same with the area of mould, and four of vacuum heat-insulating plate sides just in time contact with mould, then the foam cement mortar that 2-15mm is thick is built in the above, make foam cement mortar by coated for whole vacuum heat-insulating plate upper and lower surfaces, form overcoat, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with common plastic film again under natural environmental condition, namely the composite evacuated heat insulating board of foam cement is obtained.
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| CN201210449509.5A CN102979205B (en) | 2012-11-12 | 2012-11-12 | Foaming cement composite vacuum heat insulation plate and preparation method thereof |
| CN201410622758.9A CN104294942B (en) | 2012-11-12 | 2012-11-12 | Composite evacuated heat insulating board of foam cement and preparation method thereof |
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| CN102979205A (en) | 2013-03-20 |
| CN104294942A (en) | 2015-01-21 |
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