CN114439158B - Waterproof construction method for rubber asphalt waterproof coating roof - Google Patents
Waterproof construction method for rubber asphalt waterproof coating roof Download PDFInfo
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- CN114439158B CN114439158B CN202111570658.2A CN202111570658A CN114439158B CN 114439158 B CN114439158 B CN 114439158B CN 202111570658 A CN202111570658 A CN 202111570658A CN 114439158 B CN114439158 B CN 114439158B
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- waterproof
- acrylic emulsion
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- 239000010426 asphalt Substances 0.000 title claims abstract description 102
- 229920001971 elastomer Polymers 0.000 title claims abstract description 74
- 238000010276 construction Methods 0.000 title claims abstract description 63
- 238000000576 coating method Methods 0.000 title claims abstract description 43
- 239000011248 coating agent Substances 0.000 title claims abstract description 42
- 239000000839 emulsion Substances 0.000 claims abstract description 78
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims abstract description 61
- 239000003973 paint Substances 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 13
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000012943 hotmelt Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 48
- 239000002585 base Substances 0.000 claims description 40
- 239000004844 aliphatic epoxy resin Substances 0.000 claims description 32
- 230000000149 penetrating effect Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- 229910000077 silane Inorganic materials 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 11
- 239000004359 castor oil Substances 0.000 claims description 11
- 235000019438 castor oil Nutrition 0.000 claims description 11
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 11
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 11
- -1 polysiloxane Polymers 0.000 claims description 11
- 239000000600 sorbitol Substances 0.000 claims description 11
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 10
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 10
- 239000013530 defoamer Substances 0.000 claims description 10
- 229920001296 polysiloxane Polymers 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 9
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 claims description 9
- 239000004816 latex Substances 0.000 claims description 9
- 229920000126 latex Polymers 0.000 claims description 9
- 229920000058 polyacrylate Polymers 0.000 claims description 9
- 230000037452 priming Effects 0.000 claims description 9
- MRUAUOIMASANKQ-UHFFFAOYSA-O carboxymethyl-[3-(dodecanoylamino)propyl]-dimethylazanium Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC(O)=O MRUAUOIMASANKQ-UHFFFAOYSA-O 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229940075468 lauramidopropyl betaine Drugs 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 7
- FWVCSXWHVOOTFJ-UHFFFAOYSA-N 1-(2-chloroethylsulfanyl)-2-[2-(2-chloroethylsulfanyl)ethoxy]ethane Chemical compound ClCCSCCOCCSCCCl FWVCSXWHVOOTFJ-UHFFFAOYSA-N 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims description 6
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 4
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 235000019402 calcium peroxide Nutrition 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 239000012466 permeate Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 49
- 230000000052 comparative effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 230000035699 permeability Effects 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000001282 organosilanes Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910018557 Si O Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000007719 peel strength test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011387 rubberized asphalt concrete Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- 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
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
-
- 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
- Y02B80/32—Roof garden systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a waterproof construction method of a rubber asphalt waterproof coating roof, and relates to the field of building waterproof engineering. The invention discloses a waterproof construction method of a rubber asphalt waterproof coating roof, which comprises the following steps: 1) Cleaning dirt and the like on the surface of a roof base layer, and treating a place with right angles to the roof; 2) Spraying the base layer with the diluted modified styrene-acrylic emulsion once; 3) Treating yin and yang angles: processing the protruding roof part with an upper non-woven fabric reinforcing additional layer and a lower non-woven fabric reinforcing additional layer with the width of 25 cm respectively; 4) After the base layer is primed, the high-permeability rubber asphalt waterproof paint is vertically sprayed in a crossing way for 2 times; 5) Attaching waterproof coiled materials, and splicing edges by using hot-melt coiled materials. The construction method can use mechanized construction, is simple and easy to operate, can reduce the construction period, has high efficiency and saves labor cost; the waterproof layer prepared by the construction method has good wettability with the base surface of the roof, can effectively permeate into the base surface, and has excellent weather resistance, waterproof property, base surface fracture resistance and high bonding strength.
Description
Technical Field
The invention relates to the field of building waterproof construction, in particular to a waterproof construction method for a rubber asphalt waterproof coating roof.
Background
The problem of building roof infiltration is that the comparatively general quality of building is common, and the user often can appear roofing infiltration after using for a period, leak, interior wall flour brush layer large tracts of land phenomenon such as peeling off, still can take place to mould at the wall, influences resident's healthy, damages indoor equipment, furniture, electrical equipment etc.. At present, the waterproof treatment method for building roofs in China is gradually changed from the asphalt felt paper and tar asphalt paving method to the modified asphalt waterproof coiled material and the ethylene-propylene-diene polymer waterproof coiled material paving method, and the waterproof coiled material is pretreated by a base layer treating agent (waterproof paint) before paving, so that the bonding effect between the base layer and the waterproof coiled material is improved.
The existing waterproof coating is generally subjected to wetting treatment on a roof base layer by adopting clear water before roof construction so as to increase the permeability of the waterproof coating, but the actual effect is not ideal, the permeability of the waterproof coating can be enhanced to a certain extent by the clear water, but the binding force between the waterproof coating and the base layer is poor, and the waterproof coating can be easily stripped by environmental influences such as sunlight exposure, high and low temperature and the like, so that the service life of a roof waterproof project is influenced. Some roofs in the prior art are also subjected to wetting priming by adopting 168B stock solution to increase the permeability of the base layer, and the 168B stock solution and the waterproof coating have better binding force, but the wetting effect on the base layer is general, the permeability effect is inferior to that of clear water, and after a period of use, the roof waterproof layer is easy to fall off, so that the service life of a house is influenced.
With the development of road and bridge construction, asphalt is widely used in road and bridge construction and waterproof construction with its excellent waterproof property and cohesiveness. In recent years, materials such as SBS, acrylic emulsion, SBR or neoprene emulsion and the like are added into hot melt asphalt for modification, so that the performance of the water-based asphalt coating is improved, and the high-low temperature performance and the breaking elongation of the materials are obviously improved. However, the modified water-based asphalt coating has an unsatisfactory effect in construction application, and is mainly characterized by the problems of poor adhesion between a coating film and a base surface, foot sticking, small anti-seepage pressure, easy bubbling due to direct solar radiation and the like; some modified water-based asphalt coatings have unsatisfactory effects on improving tensile strength, elongation at break and low-temperature flexibility, cannot effectively prevent rainwater and permeation for a long time, and are easy to peel. Therefore, the wettability and the cohesiveness between the rubber asphalt waterproof coating and the matrix are improved, and the waterproof coating is particularly important for roof waterproof engineering.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the problems in the prior art, the invention provides the waterproof construction method for the rubber asphalt waterproof coating roof, which is simple in construction and easy to operate, can reduce the construction period, has high efficiency and saves the labor cost; the waterproof layer prepared by the construction method has good wettability with the base surface of the roof, can effectively permeate into the base surface, and has excellent weather resistance, waterproof property, base surface fracture resistance and high bonding strength.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
a waterproof construction method for a rubber asphalt waterproof coating roof comprises the following specific steps:
step 1), base layer treatment:
a. the place with right angle on the roof needs to make the internal angle into an arc shape with radius larger than 5 cm or 45 degrees with the right angle side longer than 5 cm;
b. cleaning the surface of the roof base layer, rubbing, dirt, protruding objects and barriers, and ensuring the surface of the base layer to be flat, firm, clean and free of clear water;
step 2), priming the base layer: spraying diluted modified styrene-acrylic emulsion on the surface of the treated base layer;
step 3), treating yin and yang angles: processing the protruding roof part with an upper non-woven fabric reinforcing additional layer and a lower non-woven fabric reinforcing additional layer with the width of 25 cm respectively;
step 4), large-surface construction: after the base layer is primed, the high-permeability rubber asphalt waterproof paint is vertically sprayed in a crossing way for 2 times, namely the first high-permeability rubber asphalt waterproof paint is required to be uniformly sprayed perpendicular to the construction part, and after the first high-permeability rubber asphalt waterproof paint is dried, the second high-permeability rubber asphalt waterproof paint is coated;
step 5), attaching waterproof coiled materials: the SBS modified asphalt waterproof coiled material is paved on the high-permeability rubber asphalt waterproof paint, the lap joint width between adjacent waterproof coiled materials is more than or equal to 10cm, hot melt coiled material lap joint edges are adopted, extruded asphalt oil is used as a standard, and then the lap joint positions of the adhered coiled materials are sealed.
Further, the diluted modified styrene-acrylic emulsion is prepared by mixing modified styrene-acrylic emulsion with water according to a ratio of 1: (15-20) dilution.
Further, the specific steps of the yin and yang angle treatment in the step 3) are as follows: firstly, spraying diluted modified styrene-acrylic emulsion on a base layer of a protruding roof part for wetting, then spraying high-permeability rubber asphalt waterproof paint once, wherein the thickness is 1mm, and paving a non-woven fabric reinforced additional layer; and then spraying the high-permeability rubber asphalt waterproof paint for the second time on the protruding roof in a large area, and curing to be 1.5mm thick.
The modified styrene-acrylic emulsion is prepared by adding sorbitol into the styrene-acrylic emulsion, uniformly mixing, then adding a rapid penetrating agent T and hydroxyethyl methacrylate, heating to 50-60 ℃, and stirring for 1-2h to obtain the modified styrene-acrylic emulsion.
Further, the addition amount of the sorbitol is 8-10wt% of the styrene-acrylic emulsion, the addition amount of the rapid penetrating agent is 3-5wt% of the styrene-acrylic emulsion, and the addition amount of the hydroxyethyl methacrylate is 0.8-1wt% of the styrene-acrylic emulsion.
Further, the high-permeability rubber asphalt waterproof coating is prepared from the following raw materials in parts by weight: 50 to 70 parts of emulsified asphalt, 10 to 30 parts of acrylic emulsion, 5 to 25 parts of neoprene latex, 5 to 10 parts of silane modified aliphatic epoxy resin, 3 to 5 parts of penetrating agent, 1 to 3 parts of hydrogenated castor oil, 1 to 2 parts of polysiloxane defoamer, 1 to 3 parts of polyacrylate, 15 to 30 parts of filler, 1 to 3 parts of ethylene-acrylic acid copolymer and 5 to 15 parts of water,
the high-permeability rubber asphalt waterproof paint is prepared by the following method:
s1, weighing all required raw material components according to parts by weight;
s2, adding water and acrylic emulsion into a container, starting low-speed stirring, adding a polysiloxane defoamer, uniformly mixing at 500-700rpm, adding a filler and an ethylene-acrylic acid copolymer, increasing the stirring speed to 1000-1200rpm, and stirring for 20-30min;
s3, reducing the stirring speed to 650-800rpm, sequentially adding emulsified asphalt and neoprene latex, stirring for 5-10min, then adding silane modified aliphatic epoxy resin, increasing the stirring speed to 900-1100rpm, and stirring for 10-20min;
s4, adding polyacrylate, hydrogenated castor oil and penetrating agent, and continuously stirring for 5-10min to obtain the high-permeability rubber asphalt waterproof coating.
Further, the silane modified aliphatic epoxy resin is prepared by the following method: adding 600 parts of methanol and 0.6 part of tetrafluoroboric acid into a reaction kettle, heating to 60 ℃, slowly adding 100 parts of aliphatic epoxy resin, reacting for 90min, adding 30 parts of methyldimethoxy silane and 4 parts of boron trifluoride diethyl ether serving as a catalyst, reacting for 4h at 70 ℃, adjusting the PH value to be neutral by using 35% sodium hydroxide solution, cooling to room temperature, washing by using 20wt% sodium dihydrogen phosphate aqueous solution, standing for layering, filtering, and rotationally evaporating to obtain the silane modified aliphatic epoxy resin.
Further, the penetrating agent is a compound of an alkali-resistant penetrating agent OEP-70 and lauramidopropyl betaine, and the mass ratio of the alkali-resistant penetrating agent OEP-70 to the lauramidopropyl betaine is 3:1.
further, the filler is heavy calcium and titanium dioxide, and the mass ratio of the heavy calcium to the titanium dioxide is 1:2.
(III) beneficial effects
The beneficial effects of the invention are as follows: 1. the construction method can adopt manual construction or mechanized construction, is simple and easy to operate, improves the working efficiency, and reduces the labor cost input during construction.
2. The sorbitol is added into the styrene-acrylic emulsion, so that the wettability of the styrene-acrylic emulsion to the roof is improved, the permeability of the modified styrene-acrylic emulsion is further improved, and the addition of the sorbitol also improves the moisture retention of the styrene-acrylic emulsion, so that the coating effect of the high-permeability rubber asphalt waterproof paint on the roof is improved, and the high-permeability rubber asphalt waterproof paint can be more effectively bonded with the roof; the addition of the fast penetrant T reduces the permeation time of the styrene-acrylic emulsion, improves the permeation effect, can also act with other components of the modified styrene-acrylic emulsion, and improves the cohesive force with the waterproof paint while improving the permeability; the hydroxyethyl methacrylate can be blended with the styrene-acrylic emulsion, the permeability of the modified styrene-acrylic emulsion is not reduced, and the modified styrene-acrylic emulsion can penetrate into a roof under the action of other components of the modified styrene-acrylic emulsion, so that the bonding effect of the roof and a waterproof coiled material and the high-permeability rubber asphalt waterproof coating is improved, the bonding strength of a waterproof layer and the roof is improved, and the service life of the waterproof layer is prolonged.
3. The high-permeability rubber asphalt waterproof coating disclosed by the invention is prepared by modifying emulsified asphalt at normal temperature by adding a proper amount of acrylic emulsion, neoprene emulsion and silane modified aliphatic epoxy resin, and then adding a thickening agent, a penetrating agent, a defoaming agent, a filler and a solubilizer, wherein the components interact with each other.
4. The middle-high permeability rubber asphalt waterproof paint is prepared by adding silane modified aliphatic epoxy resin, opening a ring of the aliphatic epoxy resin in tetrafluoroboric acid serving as a catalyst and methanol serving as a solvent, then reacting with organosilane, and introducing a silicon-oxygen bond into a chain segment of the aliphatic epoxy resin. The methyl dimethoxy silane is of a chain structure formed by Si-O bond, silicon atoms are mainly connected with methyl groups, a small amount of unsaturated groups are introduced into side chains, intermolecular forces are small, molecules are of a spiral structure, the methyl groups are outwards arranged and can freely rotate, so that a siloxane product has better heat resistance, weather resistance, electrical insulation, chemical stability and the like, and therefore the methyl dimethoxy silane is introduced into an aliphatic epoxy resin structure, so that a chain-shaped silicon-oxygen bond is introduced into a main chain of the aliphatic epoxy resin, the internal rotation energy barrier of the main chain of the aliphatic epoxy resin is reduced, the flexibility of the chain is increased, the accumulation of molecular chains is reduced, the solubility of silane modified aliphatic epoxy resin is further improved, the compatibility with components such as emulsified asphalt, acrylic emulsion and the like is improved, the viscosity of the waterproof paint is increased, and the bonding strength, the mechanical strength and the fracture elongation rate of the waterproof paint are improved; the introduction of the organosilane greatly improves the weather resistance of the silane modified aliphatic epoxy resin, and further improves the weather resistance of the waterproof coating and the waterproof layer.
5. The penetrant adopts the compound of the alkali-resistant penetrant OEP-70 and the lauramidopropyl betaine, namely the compound of the anionic penetrant and the zwitterionic surfactant, and the two substances generate a synergistic effect, and the two substances are compounded to form micelle capacity, so that the surface tension capacity is reduced. The penetrating agent can increase the wetting effect of the roof, has lower surface tension, can obviously improve the anti-foaming capacity of the waterproof paint and solves the problem of easy foaming in construction when being used with the defoaming agent.
6. The preparation method of the high-permeability rubber asphalt waterproof paint is simple, does not need heating and special equipment, does not release harmful gas in the production process, has low production cost, and is suitable for being used on construction sites.
7. The invention is convenient for subsequent laying by flattening the roof, and wets and priming the roof to increase the permeability and the cohesiveness with the high-permeability rubber asphalt waterproof paint; the male and female corners are treated, so that the waterproof layer of the protruding roof part can be stably fixed with the protruding roof part, rainwater leakage is prevented, leakage of the waterproof layer and the node of the protruding roof part is avoided, the waterproof performance of the roof is further improved integrally, and the problem of poor waterproof performance of the protruding roof part in the prior art is solved; the waterproof layer prepared by the construction method has no construction bubbles with the roof, is firm in adhesion, is not easy to bulge and warp, has excellent weather resistance, waterproof property and ageing resistance, and has long service life; the construction method is simple and scientific, and the construction period is short.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments for better explaining the present invention.
A waterproof construction method for a rubber asphalt waterproof coating roof comprises the following specific steps:
step 1), base layer treatment:
a. the place with right angle on the roof needs to make the internal angle into an arc shape with radius larger than 5 cm or 45 degrees with the right angle side longer than 5 cm;
b. cleaning the surface of the roof base layer, rubbing, dirt, protruding objects and barriers, and ensuring the surface of the base layer to be flat, firm, clean and free of clear water;
step 2), priming the base layer: spraying diluted modified styrene-acrylic emulsion on the surface of the treated base layer;
step 3), treating yin and yang angles: processing the protruding roof part with an upper non-woven fabric reinforcing additional layer and a lower non-woven fabric reinforcing additional layer with the width of 25 cm respectively;
step 4), large-surface construction: after the base layer is primed, the high-permeability rubber asphalt waterproof paint is vertically sprayed in a crossing way for 2 times, namely the first high-permeability rubber asphalt waterproof paint is required to be uniformly sprayed perpendicular to the construction part, and after the first high-permeability rubber asphalt waterproof paint is dried, the second high-permeability rubber asphalt waterproof paint is coated;
step 5), attaching waterproof coiled materials: the SBS modified asphalt waterproof coiled material is paved on the high-permeability rubber asphalt waterproof paint, the lap joint width between adjacent waterproof coiled materials is more than or equal to 10cm, hot melt coiled material lap joint edges are adopted, extruded asphalt oil is used as a standard, and then the lap joint positions of the adhered coiled materials are sealed.
Further, the diluted modified styrene-acrylic emulsion is prepared by mixing modified styrene-acrylic emulsion with water according to a ratio of 1: (15-20) dilution.
Further, the specific steps of the yin and yang angle treatment in the step 3) are as follows: firstly, spraying diluted modified styrene-acrylic emulsion on a base layer of a protruding roof part for wetting, then spraying high-permeability rubber asphalt waterproof paint once, wherein the thickness is 1mm, and paving a non-woven fabric reinforced additional layer; and then spraying the high-permeability rubber asphalt waterproof paint for the second time on the protruding roof in a large area, and curing to be 1.5mm thick.
The modified styrene-acrylic emulsion is prepared by adding sorbitol into the styrene-acrylic emulsion, uniformly mixing, then adding a rapid penetrating agent T and hydroxyethyl methacrylate, heating to 50-60 ℃, and stirring for 1-2h to obtain the modified styrene-acrylic emulsion.
Further, the addition amount of the sorbitol is 8-10wt% of the styrene-acrylic emulsion, the addition amount of the rapid penetrating agent is 3-5wt% of the styrene-acrylic emulsion, and the addition amount of the hydroxyethyl methacrylate is 0.8-1wt% of the styrene-acrylic emulsion.
Further, the high-permeability rubber asphalt waterproof coating is prepared from the following raw materials in parts by weight: 50 to 70 parts of emulsified asphalt, 10 to 30 parts of acrylic emulsion, 5 to 25 parts of neoprene latex, 5 to 10 parts of silane modified aliphatic epoxy resin, 3 to 5 parts of penetrating agent, 1 to 3 parts of hydrogenated castor oil, 1 to 2 parts of polysiloxane defoamer, 1 to 3 parts of polyacrylate, 15 to 30 parts of filler, 1 to 3 parts of ethylene-acrylic acid copolymer and 5 to 15 parts of water,
the high-permeability rubber asphalt waterproof paint is prepared by the following method:
s1, weighing all required raw material components according to parts by weight;
s2, adding water and acrylic emulsion into a container, starting low-speed stirring, adding a polysiloxane defoamer, uniformly mixing at 500-700rpm, adding a filler and an ethylene-acrylic acid copolymer, increasing the stirring speed to 1000-1200rpm, and stirring for 20-30min;
s3, reducing the stirring speed to 650-800rpm, sequentially adding emulsified asphalt and neoprene latex, stirring for 5-10min, then adding silane modified aliphatic epoxy resin, increasing the stirring speed to 900-1100rpm, and stirring for 10-20min;
s4, adding polyacrylate, hydrogenated castor oil and penetrating agent, and continuously stirring for 5-10min to obtain the high-permeability rubber asphalt waterproof coating.
Further, the silane modified aliphatic epoxy resin is prepared by the following method: adding 600 parts of methanol and 0.6 part of tetrafluoroboric acid into a reaction kettle, heating to 60 ℃, slowly adding 100 parts of aliphatic epoxy resin, reacting for 90min, adding 30 parts of methyldimethoxy silane and 4 parts of boron trifluoride diethyl ether serving as a catalyst, reacting for 4h at 70 ℃, adjusting the PH value to be neutral by using 35% sodium hydroxide solution, cooling to room temperature, washing by using 20wt% sodium dihydrogen phosphate aqueous solution, standing for layering, filtering, and rotationally evaporating to obtain the silane modified aliphatic epoxy resin.
Further, the penetrating agent is a compound of an alkali-resistant penetrating agent OEP-70 and lauramidopropyl betaine, and the mass ratio of the alkali-resistant penetrating agent OEP-70 to the lauramidopropyl betaine is 3:1.
further, the filler is heavy calcium and titanium dioxide, and the mass ratio of the heavy calcium to the titanium dioxide is 1:2.
Example 1
A waterproof construction method of a rubber asphalt waterproof coating roof comprises the following steps:
step 1) base layer treatment:
a. the surface of the roof base layer cannot be provided with the defects of floating paste, holes, cracks and the like, and if the defects are overcome, the polymer mortar is repaired and leveled, and then spraying construction is carried out.
b. The surface of the base layer must have protrusions and barriers, such as uncleaned steel pipes and steel bars, which are not required to appear in the design of the base layer, so as to prevent the waterproof coating film from being closed and leaking water.
c. For the heels of the outer wall encountered in the construction process, the places with right angles such as the embedded pipeline opening, the drainage ditch and the like are firstly made into arc-shaped angles with the radius larger than 5 centimeters or 45-degree angles with the right-angle side length larger than 5 centimeters, and then waterproof construction is carried out so as to achieve the perfect waterproof effect.
d. The base layer can be subjected to waterproof construction after being accepted by resume engineers, and the base layer is blown out by a high-pressure dust blowing machine when necessary before construction.
Step 2) priming the base layer: spraying the diluted modified styrene-acrylic emulsion once (the modified styrene-acrylic emulsion is diluted by adding water in a ratio of 1:15) to increase the permeability of the modified styrene-acrylic emulsion; the roof is moistened and bottomed, so that the permeability of the roof is increased.
Step 3) yin and yang angle treatment: the convex roof parts such as the female and male corners of the parapet wall, the water outlet, the root of the pipeline and the like are treated by reinforcing additional layers of non-woven fabrics with widths of 25 cm up and down. Firstly, spraying diluted modified styrene-acrylic emulsion (the modified styrene-acrylic emulsion is diluted by adding water in a ratio of 1:15) on the base layer of the part, spraying high-permeability rubber asphalt waterproof paint once again, wherein the thickness is about 1mm, and paving a non-woven fabric reinforced additional layer; then spraying the high-permeability rubber asphalt waterproof paint for the second time on convex roof parts such as female wall yin and yang corners, water outlet, pipeline root and the like in a large area, wherein the spraying dosage is 2.5kg/m 2 After curing, a thickness of 1.5mm was reached.
And 4) large-surface construction: after the base layer is primed (namely after the base layer is sprayed with the diluted modified styrene-acrylic emulsion), the high-permeability rubber asphalt waterproof paint is sprayed for 2 times in a cross vertical mode, namely the first high-permeability rubber asphalt waterproof paint is sprayed perpendicular to a construction position, and the high-permeability rubber asphalt waterproof paint must be uniform and cannot have the phenomena of exposed priming and paint accumulation. If mechanized spraying is used, the applicator outlet pressure should be in compliance with the operating spraying protocol. After the first time of high-permeability rubber asphalt waterproof coating is dried (mainly without sticking hands, the specific time is determined according to the actual condition of the site), the second time of high-permeability rubber asphalt waterproof coating is coated. It should be noted that the front and back waterproof coating layers should be vertically cross-coated, the thickness of the coating should be uniform, the surface should be flat, and the total weight should meet the design requirement (2-2.5 kg/m 2 ）。
And 5) attaching waterproof coiled materials: the SBS modified asphalt waterproof coiled material is paved on the high-permeability rubber asphalt waterproof paint, the lap joint width between adjacent waterproof coiled materials is more than or equal to 10cm, hot melt coiled material lap joint edges are adopted, extruded asphalt oil is used as a standard, and then the lap joint positions of the adhered coiled materials are sealed.
The construction method can be used for manual construction and mechanized construction, and is high in efficiency.
The preparation method of the modified styrene-acrylic emulsion comprises the following steps: 80g of sorbitol is added into 1kg of styrene-acrylic emulsion, and mixed uniformly, then 50g of quick penetrating agent T and 10g of hydroxyethyl methacrylate are added, the temperature is raised to 50 ℃, and stirring is carried out for 2 hours, thus obtaining the high-strength acrylic emulsion. Styrene-acrylic emulsion TX-168B is provided by Jin Youlai industry and trade Limited liability company in Dongying.
The preparation method of the high-permeability rubber asphalt waterproof paint comprises the following steps: adding 5 parts of water and 10 parts of acrylic emulsion into a container, stirring uniformly at a low speed, adding 1 part of polysiloxane defoamer, mixing uniformly at a speed of 700rpm, adding 15 parts of filler and 1 part of ethylene-acrylic acid copolymer, and stirring at a speed of 1000rpm for 30min; sequentially adding 50 parts of emulsified asphalt and 5 parts of neoprene latex at a speed of 650 rpm, stirring for 10min, then adding 5 parts of silane modified aliphatic epoxy resin, increasing the stirring speed to 1100rpm, and stirring for 10min; finally, adding 1 part of polyacrylate, 3 parts of penetrating agent and 1 part of hydrogenated castor oil, and continuously stirring for 5 min.
The penetrating agent is a compound of an alkali-resistant penetrating agent OEP-70 and lauramidopropyl betaine, and the mass ratio is 3:1. the alkali-resistant penetrating agent OEP-70 is produced by Nantong Boya environmental protection technology Co.
The polysiloxane defoamer is CK-0017 which is manufactured by Tianjin high field new material technology Co., ltd; the hydrogenated castor oil is basf hydrogenated castor oil CO40; the mass ratio of the filler heavy calcium carbonate to the titanium dioxide is 1:2.
The preparation method of the silane modified aliphatic epoxy resin comprises the following steps: adding 600 parts of methanol and 0.6 part of tetrafluoroboric acid into a reaction kettle, heating to 60 ℃, slowly adding 100 parts of aliphatic epoxy resin, reacting for 90min, adding 30 parts of methyldimethoxy silane and 4 parts of boron trifluoride diethyl etherate serving as a catalyst, reacting for 4h at 70 ℃, regulating the PH value to be neutral by using 35% sodium hydroxide solution, cooling to room temperature, washing by using 20wt% sodium dihydrogen phosphate aqueous solution, standing for layering, filtering, and rotationally evaporating to obtain the product.
The aliphatic epoxy resin used in the invention is 3, 4-epoxy cyclohexyl formate, the CAS number is 2386-87-0, and the aliphatic epoxy resin is manufactured by Wuhan Hua Xiangke Jietexilate.
Example 2
The construction method of the rubber asphalt waterproof paint roof waterproof of the embodiment 2 is the same as that of the embodiment 1, and specific implementation steps refer to the embodiment 1. Except that as described below:
in this example 2, the diluted modified styrene-acrylic emulsion was styrene-acrylic emulsion at 1:20, diluting with water;
the preparation method of the modified styrene-acrylic emulsion comprises the following steps: 100g of sorbitol is added into 1kg of styrene-acrylic emulsion, mixed uniformly, then 30g of quick penetrating agent T and 8g of hydroxyethyl methacrylate are added, the temperature is raised to 60 ℃, and stirring is carried out for 1h, thus obtaining the product.
The preparation method of the high-permeability rubber asphalt waterproof paint comprises the following steps: adding 15 parts of water and 30 parts of acrylic emulsion into a container, stirring uniformly at a low speed, adding 3 parts of polysiloxane defoamer, mixing uniformly at a speed of 500rpm, adding 30 parts of filler and 3 parts of ethylene-acrylic acid copolymer, and stirring for 20min at a speed of 1200 rpm; sequentially adding 70 parts of emulsified asphalt and 25 parts of neoprene latex at the speed of 800rpm, stirring for 5min, then adding 10 parts of silane modified aliphatic epoxy resin, increasing the stirring speed to 900rpm, and stirring for 20min; finally, adding 3 parts of polyacrylate, 5 parts of penetrating agent and 3 parts of hydrogenated castor oil, and continuously stirring for 10 min.
Example 3
The construction method of the asphalt rubber waterproof paint roof of the present example 3 is the same as that of the example 1, and the specific implementation procedure is referred to in the example 1. Except that as described below:
in this example 3, the diluted modified styrene-acrylic emulsion was styrene-acrylic emulsion at 1:20, diluting with water;
the preparation method of the modified styrene-acrylic emulsion comprises the following steps: 90g of sorbitol is added into 1kg of styrene-acrylic emulsion to be uniformly mixed, then 40g of quick penetrating agent T and 10g of hydroxyethyl methacrylate are added, the temperature is raised to 60 ℃, and stirring is carried out for 2 hours, thus obtaining the high-strength acrylic emulsion.
The preparation method of the high-permeability rubber asphalt waterproof paint comprises the following steps: adding 10 parts of water and 22 parts of acrylic emulsion into a container, stirring uniformly at a low speed, adding 2.5 parts of polysiloxane defoamer, mixing uniformly at a speed of 600rpm, adding 20 parts of filler and 2.5 parts of ethylene-acrylic acid copolymer, and stirring for 20min at a speed of 1200 rpm; sequentially adding 55 parts of emulsified asphalt and 20 parts of neoprene latex at the speed of 700rpm, stirring for 10min, then adding 10 parts of silane modified aliphatic epoxy resin, increasing the stirring speed to 1000rpm, and stirring for 30min; finally, adding 2 parts of polyacrylate, 4 parts of penetrating agent and 3 parts of hydrogenated castor oil, and continuously stirring for 10 min.
Comparative example 1
The construction method of the rubber asphalt waterproof paint roof of the comparative example 1 is the same as that of the example 3, and the specific implementation procedure is referred to the example 3. Except that the substrate or the negative and positive corner priming treatment was not performed using the diluted modified styrene-acrylic emulsion in this comparative example 1, but the priming treatment was performed using the styrene-acrylic emulsion TX-168B.
Comparative example 2
The construction method of the rubber asphalt waterproof paint roof of the comparative example 2 is the same as that of the example 3, and the specific implementation procedure is referred to the example 3. Except that in this comparative example 2, the base or the negative and positive corner was not primed with diluted modified styrene-acrylic emulsion, but with clear water.
Comparative example 3
The construction method of the rubber asphalt waterproof paint roof of the comparative example 3 is the same as that of the example 3, and the specific implementation procedure is referred to in the example 3. Except that the raw material of the high-permeability rubber asphalt waterproof paint of comparative example 3 does not contain silane-modified aliphatic epoxy resin.
Comparative example 4
The construction method of the rubber asphalt waterproof paint roof of the comparative example 4 is the same as that of the example 3, and the specific implementation procedure is referred to the example 3. Except that the raw material of the high-permeability rubber asphalt waterproof paint of comparative example 4 does not contain a penetrant.
The waterproof layers prepared according to the construction methods of examples 1 to 3 and comparative examples 1 to 4 described above were tested for adhesive strength, tear strength, slip resistance, heat resistance and weather resistance after curing 7 under standard test conditions, and the results are shown in table 1 below.
The test method of the physical and mechanical properties of the scheme refers to JC/T408-2005 water emulsion type asphalt waterproof paint; the tensile strength test method is carried out by referring to JG/T172-2014 elastic building paint; peel strength test methods were determined with reference to GB/T328.20-2007 and the test data are shown in Table 1 below.
TABLE 1 physical and mechanical Property test data of waterproof layer
Remarks: slip resistance: the waterproof coiled material is loaded with a counterweight of 60kg/m 2 Whether the coiled material slides or not.
From the test results of the above table, it can be seen that the present invention has excellent water repellency and high and low temperature resistance, and that the present invention has excellent adhesive strength, tear resistance and slip resistance.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. A waterproof construction method of a rubber asphalt waterproof coating roof is characterized by comprising the following specific steps:
step 1), base layer treatment:
a. the place with right angle on the roof needs to make the internal angle into an arc shape with radius larger than 5 cm or 45 degrees with the right angle side longer than 5 cm;
b. cleaning the surface of the roof base layer, rubbing, dirt, protruding objects and barriers, and ensuring the surface of the base layer to be flat, firm, clean and free of clear water;
step 2), priming the base layer: spraying diluted modified styrene-acrylic emulsion on the surface of the treated base layer;
step 3), treating yin and yang angles: processing the protruding roof part with an upper non-woven fabric reinforcing additional layer and a lower non-woven fabric reinforcing additional layer with the width of 25 cm respectively;
step 4), large-surface construction: after the base layer is primed, the high-permeability rubber asphalt waterproof paint is vertically sprayed in a crossing way for 2 times, namely the first high-permeability rubber asphalt waterproof paint is required to be uniformly sprayed perpendicular to the construction part, and after the first high-permeability rubber asphalt waterproof paint is dried, the second high-permeability rubber asphalt waterproof paint is coated;
step 5), attaching waterproof coiled materials: paving the SBS modified asphalt waterproof coiled material on the high-permeability rubber asphalt waterproof paint, wherein the lap joint width between adjacent waterproof coiled materials is more than or equal to 10cm, adopting hot melt coiled material lap joint edges, taking extruded asphalt oil as a standard, and then sealing the lap joint positions of the adhered coiled materials;
the modified styrene-acrylic emulsion is prepared by adding sorbitol into the styrene-acrylic emulsion, uniformly mixing, then adding a rapid penetrating agent T and hydroxyethyl methacrylate, heating to 50-60 ℃, and stirring for 1-2h to obtain the modified styrene-acrylic emulsion.
2. The waterproof construction method of the rubber asphalt waterproof coating roof according to claim 1, wherein the diluted modified styrene-acrylic emulsion is prepared by mixing modified styrene-acrylic emulsion with water according to a ratio of 1: (15-20) dilution.
3. The waterproof construction method of the rubber asphalt waterproof coating roof according to claim 1, wherein the specific steps of the yin-yang corner treatment in the step 3) are as follows: firstly, spraying diluted modified styrene-acrylic emulsion on a base layer of a protruding roof part for wetting, then spraying high-permeability rubber asphalt waterproof paint once, wherein the thickness is 1mm, and paving a non-woven fabric reinforced additional layer; and then spraying the high-permeability rubber asphalt waterproof paint for the second time on the protruding roof in a large area, and curing to be 1.5mm thick.
4. The construction method for waterproof coating of rubber asphalt roof according to claim 1, wherein the addition amount of sorbitol is 8-10wt% of the styrene-acrylic emulsion, the addition amount of the fast penetrating agent is 3-5wt% of the styrene-acrylic emulsion, and the addition amount of hydroxyethyl methacrylate is 0.8-1wt% of the styrene-acrylic emulsion.
5. The waterproof construction method of the rubber asphalt waterproof coating roof as defined in claim 1 or 3, wherein the high-permeability rubber asphalt waterproof coating is prepared from the following raw materials in parts by weight: 50 to 70 parts of emulsified asphalt, 10 to 30 parts of acrylic emulsion, 5 to 25 parts of neoprene latex, 5 to 10 parts of silane modified aliphatic epoxy resin, 3 to 5 parts of penetrating agent, 1 to 3 parts of hydrogenated castor oil, 1 to 2 parts of polysiloxane defoamer, 1 to 3 parts of polyacrylate, 15 to 30 parts of filler, 1 to 3 parts of ethylene-acrylic acid copolymer and 5 to 15 parts of water,
the high-permeability rubber asphalt waterproof paint is prepared by the following method:
s1, weighing all required raw material components according to parts by weight;
s2, adding water and acrylic emulsion into a container, starting low-speed stirring, adding a polysiloxane defoamer, uniformly mixing at 500-700rpm, adding a filler and an ethylene-acrylic acid copolymer, increasing the stirring speed to 1000-1200rpm, and stirring for 20-30min;
s3, reducing the stirring speed to 650-800rpm, sequentially adding emulsified asphalt and neoprene latex, stirring for 5-10min, then adding silane modified aliphatic epoxy resin, increasing the stirring speed to 900-1100rpm, and stirring for 10-20min;
s4, adding polyacrylate, hydrogenated castor oil and penetrating agent, and continuously stirring for 5-10min to obtain the high-permeability rubber asphalt waterproof coating.
6. The waterproof construction method of the rubber asphalt waterproof coating roof as defined in claim 5, wherein the silane modified aliphatic epoxy resin is prepared by the following method: adding 600 parts of methanol and 0.6 part of tetrafluoroboric acid into a reaction kettle, heating to 60 ℃, slowly adding 100 parts of aliphatic epoxy resin, reacting for 90min, adding 30 parts of methyldimethoxy silane and 4 parts of boron trifluoride diethyl ether serving as a catalyst, reacting for 4h at 70 ℃, adjusting the PH value to be neutral by using 35% sodium hydroxide solution, cooling to room temperature, washing by using 20wt% sodium dihydrogen phosphate aqueous solution, standing for layering, filtering, and rotationally evaporating to obtain the silane modified aliphatic epoxy resin.
7. The construction method for waterproof coating roofing of rubber asphalt according to claim 5, wherein the penetrating agent is a compound of alkali-resistant penetrating agent OEP-70 and lauramidopropyl betaine, and the mass ratio of alkali-resistant penetrating agent OEP-70 to lauramidopropyl betaine is 3:1.
8. the waterproof construction method for the rubber asphalt waterproof coating roof according to claim 5, wherein the filler is heavy calcium and titanium dioxide, and the mass ratio of heavy calcium to titanium dioxide is 1:2.
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