Summary of the invention
For overcoming the defect of prior art, the invention provides the composite evacuated heat insulating board of a kind of low alkali adhesive mortar, and this prepares the method for this composite evacuated heat insulating board.Technical scheme of the present invention is: the composite evacuated heat insulating board of a kind of low alkali adhesive mortar, comprises vacuum heat-insulating plate and the low alkali adhesive mortar 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 low alkali adhesive mortar is each component composition of following weight portion: cement 40-50 part, quartz sand 40-60 part, coarse whiting 8-15 part, dispersibility latex powder 5-10 part, hydroxypropyl methylcellulose 0.1-0.3 part, water reducing agent 0.2-0.4 part, retarding agent 0.4-0.8 part;
Described water reducing agent is lignosulfonates or sulfonated melamine compound resin;
Described retarding agent is any one in monohydric alcohol, polyalcohol, polyvinyl alcohol, carboxylate group organic matter, tartaric acid, phosphate or borate;
The particle size of described quartz sand is 30-50 order or 50-80 order.
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.
A preparation method for the composite evacuated heat insulating board of low alkali adhesive mortar, comprises the following steps:
(1), after each component of the low alkali adhesive mortar of preparation 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, obtain low alkali adhesive mortar, the mass ratio of mixture that wherein water and above-mentioned each component form is 5:1;
(3) mould of specification is got, the low alkali adhesive 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 low alkali adhesive mortar that 2-15mm is thick is built in the above, also built the thick low alkali adhesive mortar of more than 2mm between side and template for four of vacuum insulation panel simultaneously, make adhesive mortar by coated for whole vacuum heat-insulating plate, form topping, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with plastic sheeting again under natural environmental condition, obtain low alkali bonding composite vacuum insulating plate.
A preparation method for the composite evacuated heat insulating board of low alkali adhesive mortar, comprises the following steps:
(1), after each component of the low alkali adhesive mortar of preparation 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, obtain low alkali adhesive mortar, the mass ratio of mixture that wherein water and above-mentioned each component form is 5:1;
(3) mould of specification is got, the low alkali adhesive 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 low alkali adhesive mortar that 2-15mm is thick is built in the above, , two bread lower under whole vacuum heat-insulating plate are covered by adhesive mortar, form topping, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with plastic sheeting again under natural environmental condition, obtain low alkali bonding composite vacuum insulating plate.
Advantage of the present invention is: overcome the damage phenomenon that traditional vacuum heat-insulating heat-preserving material occurs in work progress, provides a kind of easy construction, good effect of heat insulation, the composite evacuated heat insulating board of A level fireproof boundary mortar.
Detailed description of the invention
Embodiment 1: the composite evacuated heat insulating board of a kind of low alkali adhesive mortar, comprises vacuum heat-insulating plate and the low alkali adhesive mortar 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 core is by with the listed as parts by weight of 100 parts, microfine silica powder 40-90 part, inserts 0-45 part, inorganic core material 0-20 part, fiber 1-18 part, getter 0-3 part, vacuum stabilizer 0-3 part.
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 low alkali adhesive mortar is each component composition of following weight portion: cement 40-50 part, quartz sand 40-60 part, coarse whiting 8-15 part, dispersibility latex powder 5-10 part, hydroxypropyl methylcellulose 0.1-0.3 part, water reducing agent 0.2-0.4 part, retarding agent 0.4-0.8 part;
Described water reducing agent is lignosulfonates or sulfonated melamine compound resin;
Described retarding agent is any one in monohydric alcohol, polyalcohol, polyvinyl alcohol, carboxylate group organic matter, tartaric acid, phosphate or borate;
The particle size of described quartz sand is 30-50 order or 50-80 order.
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.
A preparation method for the composite evacuated heat insulating board of low alkali adhesive mortar, comprises the following steps:
(1), after each component of the low alkali adhesive mortar of preparation 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, obtain low alkali adhesive mortar, the mass ratio of mixture that wherein water and above-mentioned each component form is 5:1;
(3) mould of specification is got, the low alkali adhesive 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 low alkali adhesive mortar that 2-15mm is thick is built in the above, also built the thick low alkali adhesive mortar of more than 2mm between side and template for four of vacuum insulation panel simultaneously, make adhesive mortar by coated for whole vacuum heat-insulating plate, form topping, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with plastic sheeting again under natural environmental condition, obtain low alkali bonding composite vacuum insulating plate.
Embodiment 2: the composite evacuated heat insulating board of a kind of low alkali adhesive mortar, comprises vacuum heat-insulating plate and the low alkali adhesive mortar 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 with the listed as parts by weight of 100 parts, microfine silica powder 40-90 part, inserts 0-45 part, inorganic core material 0-20 part, fiber 1-18 part, getter 0-3 part, vacuum stabilizer 0-3 part.
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 low alkali adhesive mortar is each component composition of following weight portion: cement 40-50 part, quartz sand 40-60 part, coarse whiting 8-15 part, dispersibility latex powder 5-10 part, hydroxypropyl methylcellulose 0.1-0.3 part, water reducing agent 0.2-0.4 part, retarding agent 0.4-0.8 part;
Described water reducing agent is lignosulfonates or sulfonated melamine compound resin;
Described retarding agent is any one in monohydric alcohol, polyalcohol, polyvinyl alcohol, carboxylate group organic matter, tartaric acid, phosphate or borate;
The particle size of described quartz sand is 30-50 order or 50-80 order.
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.
A preparation method for the composite evacuated heat insulating board of low alkali adhesive mortar, comprises the following steps:
(1), after each component of the low alkali adhesive mortar of preparation 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, obtain low alkali adhesive mortar, the mass ratio of mixture that wherein water and above-mentioned each component form is 5:1;
(3) mould of specification is got, the low alkali adhesive 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 low alkali adhesive mortar that 2-15mm is thick is built in the above, , make adhesive mortar by coated for whole vacuum heat-insulating plate upper and lower surfaces, form topping, then the demoulding after standing 8-24 h, maintenance 3-28 days is covered with plastic sheeting again under natural environmental condition, obtain low alkali bonding composite vacuum insulating plate.