CN115872718A - Preparation method of waterproof heat-insulation building roof material - Google Patents
Preparation method of waterproof heat-insulation building roof material Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 238000009413 insulation Methods 0.000 title claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000002156 mixing Methods 0.000 claims abstract description 41
- 239000002131 composite material Substances 0.000 claims abstract description 37
- 239000004005 microsphere Substances 0.000 claims abstract description 36
- 239000004568 cement Substances 0.000 claims abstract description 31
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000000839 emulsion Substances 0.000 claims abstract description 16
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000004321 preservation Methods 0.000 claims abstract description 13
- 239000004793 Polystyrene Substances 0.000 claims abstract description 7
- 239000011398 Portland cement Substances 0.000 claims abstract description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 7
- 125000002091 cationic group Chemical group 0.000 claims abstract description 7
- 229920002223 polystyrene Polymers 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 45
- 239000004576 sand Substances 0.000 claims description 30
- 238000005303 weighing Methods 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 21
- 239000003638 chemical reducing agent Substances 0.000 claims description 20
- 239000003963 antioxidant agent Substances 0.000 claims description 15
- 230000003078 antioxidant effect Effects 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- 230000000844 anti-bacterial effect Effects 0.000 claims description 10
- 239000003899 bactericide agent Substances 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000005871 repellent Substances 0.000 claims description 9
- 230000002940 repellent Effects 0.000 claims description 9
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 claims description 5
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 claims description 5
- 239000005750 Copper hydroxide Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 5
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 239000011083 cement mortar Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 229910001956 copper hydroxide Inorganic materials 0.000 claims description 5
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 5
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000003837 high-temperature calcination Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 5
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000006750 UV protection Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000036571 hydration Effects 0.000 abstract description 2
- 238000006703 hydration reaction Methods 0.000 abstract description 2
- 125000001165 hydrophobic group Chemical group 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005594 polymer fiber Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of building materials, and provides a preparation method of a waterproof heat-insulating building roof material.A butylbenzene emulsion is added in the preparation process of an aqueous agent, and the butylbenzene emulsion and components in cement powder can form a continuous network membrane structure in the hydration process of the cement powder, so that the prepared roof material structure is more compact, and a large number of hydrophobic groups in the butylbenzene emulsion can reduce the transmission of water, thereby improving the waterproof performance and durability of the roof material; secondly, the hollow microspheres take the cationic polystyrene microspheres as templates, so that the silicon dioxide particles and the titanium dioxide particles are adsorbed on the surfaces of the hollow microspheres for condensation, and the effects of heat preservation and ultraviolet resistance can be achieved, so that the prepared roofing material has good heat preservation performance and ultraviolet resistance; according to the invention, the composite cementitious component is prepared by mixing the portland cement, the sulphoaluminate cement and the anhydrous gypsum, so that the prepared roofing material has stable corrosion resistance and frost resistance.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a preparation method of a waterproof heat-insulation building roof material.
Background
The roof is an important component of the building enclosure structure, and because the roof is basically exposed outside, the performance of the roof is deteriorated due to the influence of natural conditions such as direct irradiation of the sun or coverage of rain and snow, wherein leakage and heat insulation are the most focused problems reflected by building users, according to statistics, the roof of a general building has a leakage phenomenon after being used for 5 to 7 years, the leakage rate reaches about 60 percent, the cost for only maintaining the roof per year is as high as billions of yuan nationwide except for direct economic loss caused by leakage, and the energy consumption loss of the roof reaches 9 to 10 percent of the total energy consumption loss of the enclosure structure. In order to solve the problems, a plurality of improved roofing materials appear on the market, but most of the improved roofing materials are formed by directly adding a water repellent with waterproof performance and a heat insulation auxiliary agent into common cement, so that the waterproof and heat insulation performance of the roofing materials is improved to a certain extent, but the optimal waterproof and heat insulation effects are not achieved in the actual use process.
For example, the preparation method of the polymer short fiber modified nanometer heat-insulating waterproof slurry disclosed in the Chinese patent No. CN201710268672.4 comprises the components of portland cement, polymer fiber, cellulose, water repellent additive and the like. The modified polymer short fibers are introduced into the inorganic material, so that the effect of strengthening and toughening is achieved, and the low thermal conductivity can be maintained, so that the nano heat-insulating waterproof slurry has superior heat-insulating performance. The introduction of the cellulose has the functions of water absorption and retention, so that the composite slurry has better waterproof and leakproof functions. However, the waterproof performance of the heat-insulating waterproof composite material is mainly due to the addition of the water repellent, the arrangement mode of the cement structure is not improved, if the performance of the water repellent is changed due to external factors, the waterproof performance of the composite material cannot be continuously ensured, and moreover, the heat-insulating effect of the modified polymer short fibers is general and needs to be improved compared with that of hollow microspheres, so that how to enhance the stability of the waterproof performance of the composite material by changing the arrangement structure of the cement and how to improve the heat-insulating performance of the composite material by adding a better heat-insulating auxiliary agent become technical problems to be solved by technical personnel in the field.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides a preparation method of a waterproof heat-insulation building roof material, aiming at ensuring that the prepared waterproof heat-insulation building roof material has stable waterproof heat-insulation performance.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a preparation method of a waterproof heat-insulation building roof material comprises the following preparation steps:
s1, weighing 33% of butylbenzene emulsion, 1% of bactericide, 0.5% of antioxidant, 0.5% of composite water reducing agent and 65% of deionized water according to weight percentage, mixing uniformly, placing at a rotating speed of 1500-1600r/min, dispersing for 8-10min at a high speed, and obtaining a water agent component;
s2, weighing 3% of hollow microspheres, 5% of slag, 40% of composite gelling component and 52% of aggregate according to the weight percentage, pouring the materials into a cement mortar stirrer, and stirring the materials at a rotating speed of 300-400r/min for 5-8min to prepare cement powder;
s3, pouring water aqua components with half weight of the cement powder in the step S2 into the cement powder, stirring at the speed of 400-500r/min for 5-8min, pouring the mixture into a mold after stirring is finished, and molding to obtain a molded blank of the memory roof material;
and S4, curing the roof material mold blank in the step S3 for 24-48 hours under the conditions that the humidity is 98% and the temperature is 20 ℃, demolding after curing is finished, and drying in an oven to obtain the waterproof heat-insulation building roof material.
Further, the bactericide is one or more of sulfur powder, copper sulfate and copper hydroxide, and the antioxidant is one or more of antioxidant 0101 and antioxidant DNP.
Further, the preparation method of the composite water reducing agent comprises the following steps: according to the following steps: 1, mixing the naphthalene water reducer and the organic silicon water repellent in a ball milling mode, and uniformly mixing to obtain the composite water reducer.
Further, the preparation method of the hollow microsphere comprises the following steps;
step 1, adding 12-15 parts by weight of cationic polystyrene microsphere emulsion and 72-75 parts by weight of deionized water into 100 parts by weight of isopropanol, uniformly mixing, transferring to a three-neck flask with a stirrer and a condenser tube, and stirring at a constant speed at room temperature;
step 2, weighing 6-8 parts by weight of ethyl orthosilicate and 32-35 parts by weight of absolute ethyl alcohol, mixing to prepare a dropwise added component, dropwise adding the dropwise added component into the three-neck flask in the step 1, heating in a water bath after the dropwise adding is finished, reacting for 6 hours at a constant temperature after the temperature is raised to 40 ℃, centrifuging and washing a product after the reaction is finished, drying in a 60-DEG C oven, and grinding to obtain the silica microspheres;
step 3, adding the silicon dioxide microspheres in the step 2 into 30-35 parts by weight of absolute ethyl alcohol, uniformly mixing, then placing the mixture into a cell crusher, ultrasonically dispersing for 10min, then transferring the mixture into a three-neck flask with a stirrer and a condenser, and stirring at a constant speed at room temperature;
step 4, dripping 12-15 parts by weight of tetrabutyl titanate into the three-neck flask obtained in the step 3, heating to 80 ℃, then preserving heat for 8-9 hours, centrifuging and washing an obtained product after heat preservation is finished, and drying the product in an oven at 60 ℃;
and 5, placing the product obtained after drying in the step 4 in a muffle furnace for high-temperature calcination to obtain the hollow microspheres containing silicon dioxide and titanium dioxide.
Furthermore, the stirring speed and the stirring time in the step 1 and the step 3 are the same, the stirring speed is 400-500r/min, and the stirring time is 15min.
Further, the dropping speed in the step 2 and the step 4 is the same, and the dropping speed is 1-2 drops/s.
Further, the calcination temperature in the step 5 is 500 ℃.
Further, the preparation method of the composite gelling component comprises the following steps: according to the proportion of 12:3:1, weighing and mixing the Portland cement, the sulphoaluminate cement and the anhydrous gypsum according to the weight ratio of 1 to obtain the composite gelling component.
Further, the preparation method of the aggregate comprises the following steps: weighing coarse sand, medium sand and fine sand according to equal weight ratio, and mixing, wherein the particle size of the coarse sand is 2.5-5mm, the particle size of the medium sand is 1-2.49mm, and the particle size of the fine sand is 0.1-1mm.
Furthermore, the temperature of the oven in the S4 is 105-106 ℃, and the drying time is 22-24h.
Advantageous effects
The invention provides a preparation method of a waterproof heat-insulation building roof material, which has the following beneficial effects compared with the prior art:
according to the invention, the butylbenzene emulsion is added in the preparation process of the water aqua, and the butylbenzene emulsion and the components in the cement powder can form a continuous network membrane structure in the hydration process of the cement powder, so that the prepared roofing material structure is more compact, and the butylbenzene emulsion has a large number of hydrophobic groups, so that the transmission of water can be reduced, and the waterproof performance and durability of the roofing material are improved; secondly, the hollow microspheres take the cationic polystyrene microspheres as templates, so that the silicon dioxide particles and the titanium dioxide particles are adsorbed on the surfaces of the hollow microspheres for condensation, and the effects of heat preservation and ultraviolet resistance can be achieved, so that the prepared roofing material has good heat preservation performance and ultraviolet resistance; the invention mixes the silicate cement, the sulphoaluminate cement and the anhydrous gypsum to prepare the composite gel component, so that the prepared roofing material has the excellent performances of the sulphoaluminate cement, such as corrosion resistance, freezing resistance and the like of the sulphoaluminate cement, and simultaneously, the defect of low strength of the silicate cement is improved, thereby the prepared waterproof heat-insulation building roofing material has excellent market popularization value.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
The preparation method of the waterproof heat-insulation building roof material comprises the following preparation steps:
s1, weighing 33% of butylbenzene emulsion, 1% of bactericide, 0.5% of antioxidant, 0.5% of composite water reducing agent and 65% of deionized water according to weight percentage, mixing uniformly, and then placing at a rotating speed of 1500r/min for high-speed dispersion for 8min to obtain a water agent component;
s2, weighing 3% of hollow microspheres, 5% of slag, 40% of composite gelling component and 52% of aggregate according to the weight percentage, pouring the mixture into a cement mortar stirrer, and stirring the mixture for 5min at the rotating speed of 300r/min to prepare cement powder;
s3, pouring water aqua components with half weight of the cement powder in the step S2 into the cement powder, stirring at a low speed of 400r/min for 5min, pouring the mixture into a mold after stirring is finished, and molding to obtain a memory roof material mold blank;
and S4, curing the roof material mold blank in the step S3 for 24 hours under the conditions that the humidity is 98% and the temperature is 20 ℃, demolding after curing is finished, and drying in an oven to obtain the waterproof heat-insulation building roof material.
The bactericide is one or more of sulfur powder, copper sulfate and copper hydroxide, and the antioxidant is one or more of antioxidant 0101 and antioxidant DNP.
The preparation method of the composite water reducing agent comprises the following steps: according to the following steps: 1, mixing the naphthalene water reducer and the organic silicon water repellent in a ball milling mode, and uniformly mixing to obtain the composite water reducer.
The preparation method of the hollow microsphere comprises the following steps;
step 1, adding 12 parts by weight of cationic polystyrene microsphere emulsion and 72 parts by weight of deionized water into 100 parts by weight of isopropanol, uniformly mixing, transferring to a three-neck flask with a stirrer and a condenser tube, and stirring at a constant speed at room temperature;
step 2, weighing 6 parts by weight of ethyl orthosilicate and 32 parts by weight of absolute ethyl alcohol, mixing to prepare a dropwise added component, dropwise adding the dropwise added component into the three-neck flask in the step 1, heating in a water bath after the dropwise addition is finished, reacting at a constant temperature for 6 hours after the temperature is raised to 40 ℃, centrifuging and washing a product after the reaction is finished, drying in a 60-DEG C oven, and grinding to obtain silicon dioxide microspheres;
step 3, adding the silicon dioxide microspheres in the step 2 into 30 parts by weight of absolute ethyl alcohol, uniformly mixing, then placing the mixture into a cell crusher, ultrasonically dispersing for 10min, then transferring the mixture into a three-neck flask with a stirrer and a condenser, and stirring at a constant speed at room temperature;
step 4, dripping 12 parts by weight of tetrabutyl titanate into the three-neck flask obtained in the step 3, heating to 80 ℃, then preserving heat for 8 hours, centrifuging and washing an obtained product after heat preservation is finished, and drying the product in an oven at 60 ℃;
and 5, placing the product obtained after drying in the step 4 in a muffle furnace for high-temperature calcination to obtain the hollow microspheres containing silicon dioxide and titanium dioxide.
The stirring speed and the stirring time in the steps 1 and 3 are the same, the stirring speed is 400r/min, and the stirring time is 15min.
The dropping speed in the step 2 is the same as that in the step 4, and the dropping speed is 1 drop/s.
The calcination temperature in step 5 was 500 ℃.
The preparation method of the composite gelling component comprises the following steps: according to the proportion of 12:3:1, weighing and mixing the Portland cement, the sulphoaluminate cement and the anhydrous gypsum according to the weight ratio of 1 to obtain the composite gelling component.
The preparation method of the aggregate comprises the following steps: weighing coarse sand, medium sand and fine sand according to equal weight ratio, and mixing, wherein the particle size of the coarse sand is 2.5mm, the particle size of the medium sand is 1mm, and the particle size of the fine sand is 0.1mm.
And the temperature of the oven in the S4 is 105 ℃, and the drying time is 22h.
Example 2
The preparation method of the waterproof heat-insulation building roof material comprises the following preparation steps:
s1, weighing 33% of butylbenzene emulsion, 1% of bactericide, 0.5% of antioxidant, 0.5% of composite water reducing agent and 65% of deionized water according to weight percentage, mixing uniformly, and then placing at a rotating speed of 1600r/min for high-speed dispersion for 10min to obtain a water aqua component;
s2, weighing 3% of hollow microspheres, 5% of slag, 40% of composite gelling component and 52% of aggregate according to the weight percentage, pouring the materials into a cement mortar stirrer, and stirring the materials at a rotating speed of 400r/min for 8min to prepare cement powder;
s3, pouring water aqua components with half weight of the cement powder in the step S2 into the cement powder, stirring at a low speed of 500r/min for 8min, pouring the mixture into a mold after stirring is finished, and molding to obtain a memory roof material mold blank;
and S4, curing the roof material mold blank in the step S3 for 48 hours under the conditions that the humidity is 98% and the temperature is 20 ℃, demolding after curing is finished, and drying in an oven to obtain the waterproof heat-insulation building roof material.
The bactericide is one or more of sulfur powder, copper sulfate and copper hydroxide, and the antioxidant is one or more of antioxidant 0101 and antioxidant DNP.
The preparation method of the composite water reducing agent comprises the following steps: according to the following steps: 1, mixing the naphthalene water reducer and the organic silicon water repellent in a ball milling mode, and uniformly mixing to obtain the composite water reducer.
The preparation method of the hollow microsphere comprises the following steps;
step 1, adding 15 parts by weight of cationic polystyrene microsphere emulsion and 75 parts by weight of deionized water into 100 parts by weight of isopropanol, uniformly mixing, transferring to a three-neck flask with a stirrer and a condenser tube, and stirring at a constant speed at room temperature;
step 2, weighing 8 parts by weight of ethyl orthosilicate and 35 parts by weight of absolute ethyl alcohol, mixing to prepare a dropwise added component, dropwise adding the dropwise added component into the three-neck flask in the step 1, heating in a water bath after the dropwise addition is finished, reacting at a constant temperature for 6 hours after the temperature is raised to 40 ℃, centrifuging and washing a product after the reaction is finished, drying in a 60-DEG C oven, and grinding to obtain silicon dioxide microspheres;
step 3, adding the silicon dioxide microspheres in the step 2 into 35 parts by weight of absolute ethyl alcohol, uniformly mixing, then placing the mixture into a cell crusher, ultrasonically dispersing for 10min, then transferring the mixture into a three-neck flask with a stirrer and a condenser, and stirring at a constant speed at room temperature;
step 4, dripping 15 parts by weight of tetrabutyl titanate into the three-neck flask obtained in the step 3, heating to 80 ℃, then preserving heat for 9 hours, centrifuging and washing an obtained product after heat preservation is finished, and drying the product in an oven at 60 ℃;
and 5, placing the product obtained after drying in the step 4 in a muffle furnace for high-temperature calcination to obtain the hollow microspheres containing silicon dioxide and titanium dioxide.
The stirring speed and the stirring time in the steps 1 and 3 are the same, the stirring speed is 500r/min, and the stirring time is 15min.
The dropping speed in the step 2 and the step 4 is the same, and the dropping speed is 2 drops/s.
The calcination temperature in step 5 was 500 ℃.
The preparation method of the composite gel component comprises the following steps: according to the proportion of 12:3:1, weighing and mixing the Portland cement, the sulphoaluminate cement and the anhydrous gypsum according to the weight ratio of 1 to obtain the composite gelling component.
The preparation method of the aggregate comprises the following steps: weighing coarse sand, medium sand and fine sand according to equal weight ratio, and mixing, wherein the particle size of the coarse sand is 5mm, the particle size of the medium sand is 2.49mm, and the particle size of the fine sand is 1mm.
And S4, the temperature of the oven is 106 ℃, and the drying time is 24h.
Example 3
The preparation method of the waterproof heat-insulation heat-preservation building roof material comprises the following preparation steps:
s1, weighing 33% of butylbenzene emulsion, 1% of bactericide, 0.5% of antioxidant, 0.5% of composite water reducing agent and 65% of deionized water according to weight percentage, mixing uniformly, and placing at a rotating speed of 1500r/min for high-speed dispersion for 9min to obtain a water aqua component;
s2, weighing 3% of hollow microspheres, 5% of slag, 40% of composite gelling component and 52% of aggregate according to the weight percentage, pouring the mixture into a cement mortar stirrer, and stirring the mixture for 7min at the rotating speed of 400r/min to prepare cement powder;
s3, pouring water aqua components with half weight of the cement powder in the step S2 into the cement powder, stirring at a low speed of 500r/min for 7min, pouring the mixture into a mold after stirring is finished, and molding to obtain a memory roof material mold blank;
and S4, curing the roof material mold blank in the step S3 for 36 hours under the conditions that the humidity is 98% and the temperature is 20 ℃, demolding after curing is finished, and drying in an oven to obtain the waterproof heat-insulation building roof material.
The bactericide is one or more of sulfur powder, copper sulfate and copper hydroxide, and the antioxidant is one or more of antioxidant 0101 and antioxidant DNP.
The preparation method of the composite water reducing agent comprises the following steps: according to the following steps: 1, mixing the naphthalene water reducer and the organic silicon water repellent in a ball milling mode, and uniformly mixing to obtain the composite water reducer.
The preparation method of the hollow microsphere comprises the following steps;
step 1, adding 14 parts by weight of cationic polystyrene microsphere emulsion and 73 parts by weight of deionized water into 100 parts by weight of isopropanol, uniformly mixing, transferring to a three-neck flask with a stirrer and a condenser tube, and stirring at a constant speed at room temperature;
step 2, weighing 7 parts by weight of ethyl orthosilicate and 34 parts by weight of absolute ethyl alcohol, mixing to prepare a dropwise added component, dropwise adding the dropwise added component into the three-neck flask in the step 1, heating in a water bath after the dropwise addition is finished, reacting at a constant temperature for 6 hours after the temperature is raised to 40 ℃, centrifuging and washing a product after the reaction is finished, drying in a 60-DEG C oven, and grinding to obtain silicon dioxide microspheres;
step 3, adding the silicon dioxide microspheres in the step 2 into 33 parts by weight of absolute ethyl alcohol, uniformly mixing, then placing the mixture into a cell crusher, ultrasonically dispersing for 10min, then transferring the mixture into a three-neck flask with a stirrer and a condenser, and stirring at a constant speed at room temperature;
step 4, dripping 14 parts by weight of tetrabutyl titanate into the three-neck flask obtained in the step 3, heating to 80 ℃, then preserving heat for 9 hours, centrifuging and washing the obtained product after heat preservation is finished, and drying the product in an oven at 60 ℃;
and 5, placing the product dried in the step 4 in a muffle furnace for high-temperature calcination to obtain the microspheres containing silicon dioxide and titanium dioxide, namely the hollow microspheres.
The stirring speed and the stirring time in the step 1 and the step 3 are the same, the stirring speed is 500r/min, and the stirring time is 15min.
The dropping speed in the step 2 and the step 4 is the same, and the dropping speed is 2 drops/s.
The calcination temperature in step 5 was 500 ℃.
The preparation method of the composite gel component comprises the following steps: according to the proportion of 12:3:1, weighing and mixing the Portland cement, the sulphoaluminate cement and the anhydrous gypsum according to the weight ratio of 1 to obtain the composite gelling component.
The preparation method of the aggregate comprises the following steps: weighing coarse sand, medium sand and fine sand according to equal weight ratio, and mixing, wherein the particle size of the coarse sand is 3mm, the particle size of the medium sand is 2mm, and the particle size of the fine sand is 0.6mm.
And the temperature of the oven in the S4 is 105 ℃, and the drying time is 23h.
Performance detection
The waterproof, heat-insulating and heat-preserving building roofing materials prepared by examples 1 to 3 of the present invention were respectively designated as examples 1 to 3, commercially available roofing materials having waterproof, heat-insulating and heat-preserving properties were designated as comparative examples, and then the examples 1 to 3 and the comparative examples were subjected to the relevant property tests, and the obtained data were recorded as follows:
the data in the table show that the compressive strength, the permeation resistance pressure and the comprehensive bacteriostasis rate of the waterproof, heat-insulating and heat-preserving building roofing materials prepared in the embodiments 1 to 3 are higher than those of the comparative example, and compared with the comparative example, the waterproof, heat-insulating and heat-preserving building roofing materials prepared in the embodiments 1 to 3 have better heat preservation performance and ultraviolet prevention performance, so that the waterproof, heat-insulating and heat-preserving building roofing materials prepared in the invention have better market advance.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A preparation method of a waterproof heat-insulation building roof material is characterized by comprising the following preparation steps:
s1, weighing 33% of butylbenzene emulsion, 1% of bactericide, 0.5% of antioxidant, 0.5% of composite water reducing agent and 65% of deionized water according to weight percentage, mixing uniformly, placing at a rotating speed of 1500-1600r/min, dispersing at a high speed for 8-10min, and obtaining a water aqua component;
s2, weighing 3% of hollow microspheres, 5% of slag, 40% of composite gelling component and 52% of aggregate according to the weight percentage, pouring the mixture into a cement mortar stirrer, and stirring the mixture for 5 to 8 minutes at the rotating speed of 300 to 400r/min to prepare cement powder;
s3, pouring water aqua components with half weight of the cement powder in the step S2 into the cement powder, stirring at the speed of 400-500r/min for 5-8min, pouring the mixture into a mold after stirring is finished, and molding to obtain a molded blank of the memory roof material;
and S4, curing the roof material mold blank in the step S3 for 24-48 hours under the conditions that the humidity is 98% and the temperature is 20 ℃, demolding after curing is finished, and drying in an oven to obtain the waterproof heat-insulation building roof material.
2. The method for preparing the waterproof heat-insulating building roofing material as claimed in claim 1, wherein the bactericide is one or more of sulfur powder, copper sulfate and copper hydroxide, and the antioxidant is one or more of antioxidant 0101 and antioxidant DNP.
3. The preparation method of the waterproof heat-insulation building roof material according to claim 1, characterized in that the preparation method of the composite water reducing agent comprises the following steps: according to the following steps: 1, mixing the naphthalene water reducer and the organic silicon water repellent in a ball milling mode, and uniformly mixing to obtain the composite water reducer.
4. The method for preparing the waterproof heat-insulation building roofing material according to claim 1, wherein the method for preparing the hollow microspheres comprises the following steps;
step 1, adding 12-15 parts by weight of cationic polystyrene microsphere emulsion and 72-75 parts by weight of deionized water into 100 parts by weight of isopropanol, uniformly mixing, transferring into a three-neck flask with a stirrer and a condenser tube, and stirring at a constant speed at room temperature;
step 2, weighing 6-8 parts by weight of ethyl orthosilicate and 32-35 parts by weight of absolute ethyl alcohol, mixing to prepare a dropwise added component, dropwise adding the dropwise added component into the three-neck flask in the step 1, heating in a water bath after the dropwise adding is finished, reacting for 6 hours at a constant temperature after the temperature is raised to 40 ℃, centrifuging and washing a product after the reaction is finished, drying in a 60-DEG C oven, and grinding to obtain the silica microspheres;
step 3, adding the silicon dioxide microspheres in the step 2 into 30-35 parts by weight of absolute ethyl alcohol, uniformly mixing, then placing the mixture into a cell crusher, ultrasonically dispersing for 10min, then transferring the mixture into a three-neck flask with a stirrer and a condenser, and stirring at a constant speed at room temperature;
step 4, dripping 12-15 parts by weight of tetrabutyl titanate into the three-neck flask obtained in the step 3, heating to 80 ℃, then preserving heat for 8-9 hours, centrifuging and washing the obtained product after heat preservation is finished, and placing the product in an oven at 60 ℃ for drying;
and 5, placing the product obtained after drying in the step 4 in a muffle furnace for high-temperature calcination to obtain the hollow microspheres containing silicon dioxide and titanium dioxide.
5. The method for preparing the waterproof heat-insulation heat-preservation building roof material according to claim 4, wherein the stirring speed and the stirring time in the steps 1 and 3 are the same, the stirring speed is 400-500r/min, and the stirring time is 15min.
6. The preparation method of the waterproof heat-insulating building roofing material as claimed in claim 4, wherein the dropping speed in the step 2 and the step 4 is the same, and the dropping speed is 1-2 drops/s.
7. The method for preparing the waterproof heat-insulation building roofing material according to claim 4, wherein the calcination temperature in the step 5 is 500 ℃.
8. The preparation method of the waterproof heat-insulation heat-preservation building roof material as claimed in claim 1, wherein the preparation method of the composite cementitious component comprises the following steps: according to the proportion of 12:3:1, weighing and mixing the Portland cement, the sulphoaluminate cement and the anhydrous gypsum according to the weight ratio of 1 to obtain the composite gelling component.
9. The preparation method of the waterproof heat-insulation building roof material according to claim 1, wherein the preparation method of the aggregate comprises the following steps: weighing coarse sand, medium sand and fine sand according to equal weight ratio, and mixing, wherein the particle size of the coarse sand is 2.5-5mm, the particle size of the medium sand is 1-2.49mm, and the particle size of the fine sand is 0.1-1mm.
10. The preparation method of the waterproof heat-insulating building roofing material according to claim 1, wherein the temperature of the oven in the S4 is 105-106 ℃ and the drying time is 22-24h.
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