CN115109486B - Preparation method of weather-resistant asphalt-based waterproof coating and application of weather-resistant asphalt-based waterproof coating to roof repairing and waterproofing - Google Patents
Preparation method of weather-resistant asphalt-based waterproof coating and application of weather-resistant asphalt-based waterproof coating to roof repairing and waterproofing Download PDFInfo
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- CN115109486B CN115109486B CN202210782741.4A CN202210782741A CN115109486B CN 115109486 B CN115109486 B CN 115109486B CN 202210782741 A CN202210782741 A CN 202210782741A CN 115109486 B CN115109486 B CN 115109486B
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- 239000010426 asphalt Substances 0.000 title claims abstract description 168
- 239000011248 coating agent Substances 0.000 title claims abstract description 114
- 238000000576 coating method Methods 0.000 title claims abstract description 114
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 238000004078 waterproofing Methods 0.000 title claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000839 emulsion Substances 0.000 claims abstract description 25
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 22
- 125000000129 anionic group Chemical group 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 9
- 239000013530 defoamer Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000003208 petroleum Substances 0.000 claims abstract description 9
- 239000003755 preservative agent Substances 0.000 claims abstract description 9
- 230000002335 preservative effect Effects 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 5
- 238000004945 emulsification Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract 2
- 238000003756 stirring Methods 0.000 claims description 73
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 16
- ZTHYODDOHIVTJV-UHFFFAOYSA-N Propyl gallate Chemical compound CCCOC(=O)C1=CC(O)=C(O)C(O)=C1 ZTHYODDOHIVTJV-UHFFFAOYSA-N 0.000 claims description 16
- 239000003963 antioxidant agent Substances 0.000 claims description 13
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- 239000003973 paint Substances 0.000 claims description 12
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- 238000001816 cooling Methods 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- 229920003086 cellulose ether Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
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- 239000000843 powder Substances 0.000 description 4
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- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
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- 150000003254 radicals Chemical class 0.000 description 2
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Classifications
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
-
- 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
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- 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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0281—Repairing or restoring roofing or roof covering
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a preparation method of a weather-resistant asphalt-based waterproof coating and application of the weather-resistant asphalt-based waterproof coating to roof repairing and waterproofing, wherein the weather-resistant asphalt-based waterproof coating is prepared from the following raw materials: slow-breaking modified anionic emulsified asphalt, modified emulsion, weather-resistant filler, dispersant, defoamer, preservative, rheology modifier, composite anti-aging agent and water. Wherein, the asphalt anti-aging agent prepared from the polyphenol compound, the fatty alcohol, the petroleum resin, the nano cerium oxide and the ferrous complex is melted and evenly blended with the asphalt, and then the modified emulsified asphalt is obtained through an emulsification process. The prepared weather-resistant asphalt-based waterproof coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer of a to-be-repaired roofing according to a construction method of 'two-coating one-cloth' or 'three-coating two-cloth', has good bonding effect with the base surface, particularly has excellent weather resistance, can be subjected to whole-course cold construction without being detached and being provided with a protective layer by matching with an exposed self-adhesive asphalt-based waterproof coating coiled material, and is particularly suitable for being directly used on the old waterproof layer when the old small-area roofing is renovated.
Description
Technical Field
The invention relates to an asphalt-based waterproof coating and a preparation method thereof, in particular to a preparation method of a weather-resistant asphalt-based waterproof coating and application of the weather-resistant asphalt-based waterproof coating to roofing repair and waterproofing.
Background
At present, in the field of roof repair, due to the practical situation and economic benefit, the asphalt-based material which is widely used is still the asphalt-based material, and mainly the combination of non-cured asphalt waterproof coating and asphalt-based coiled material. However, due to the diversity of roof structures, shapes, application scenes and the like, the conventional waterproof products cannot meet all the fields of roof repair. The conventional original waterproof layer of the repaired roof is difficult to completely remove, most of the conventional waterproof layers are damaged and seriously stained, and the conventional waterproof layer is located in old districts, so that open fire cannot be used and the repair materials are required to be light and convenient. The use environment determines that the waterproof material for roof repair needs to have wide adaptability to different base planes and excellent aging resistance, so that the development of the weather-resistant asphalt-based waterproof coating capable of being directly used on the surface of the old asphalt coiled material and the application of the weather-resistant asphalt-based waterproof coating to the roof repair have important practical significance aiming at specific application scenes.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a preparation method of a weather-resistant asphalt-based waterproof coating and application of the weather-resistant asphalt-based waterproof coating to roofing repair and waterproofing. The key point of the invention lies in that the asphalt aging is a comprehensive result of various reactions including oxidation, volatilization, adsorption, polymerization, agglomeration, fracture and the like, wherein the main asphalt oxidation refers to the aging mechanism that hydrogen of light components in asphalt is removed by oxygen, the asphalt generates dehydrogenation reaction or the asphalt absorbs oxygen to generate oxidation reaction to produce asphaltene, water-soluble salt and acid, the asphalt anti-aging agent prepared by self selection can inhibit dehydrogenation due to alkalinity, and hydrogen atoms provided by polyphenols are combined with free radicals generated by automatic oxidation of the asphalt to form stable and low-energy antioxidant free radicals, so that the oxidation reaction of the asphalt can not be propagated to achieve the purpose of oxidation resistance, and the asphalt is modified and then emulsified, the prepared slow-cracking modified anionic emulsified asphalt has good weather resistance, and then the water-based antioxidant, the ultraviolet absorbent and the excellent weather resistance of the modified emulsion in the composite aging agent are combined, the prepared asphalt-based waterproof paint has excellent weather resistance through the combination of the additives and the excellent weather resistance of the components, the asphalt-based waterproof paint has excellent weather resistance and the service life is greatly prolonged when the asphalt-based waterproof paint is applied to the repairing of roofing, the asphalt-based waterproof paint has good effect when the asphalt-based waterproof paint is combined with old asphalt, and the asphalt-free waterproof paint is applied to the whole-repairing waterproof paint, the old asphalt-free waterproof paint, and the asphalt-free waterproof paint can be used in the whole-free waterproof paint, and the old waterproof paint can be directly used for the construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
the preparation method of the weather-resistant asphalt-based waterproof coating comprises the following steps of: 30 to 50 portions of slow-breaking modified anionic emulsified asphalt, 45 to 60 portions of modified emulsion, 0.1 to 0.5 portion of dispersant, 0.1 to 0.5 portion of defoamer, 0.01 to 0.03 portion of preservative, 5 to 10 portions of weather-resistant filler, 3 to 5 portions of composite anti-aging agent, 0.5 to 1.5 portions of thickener and 3 to 5 portions of water. Firstly adding 30-40 parts of modified emulsion No. 1 pure acrylic emulsion, 0.1-0.5 part of dispersant, 0.1-0.5 part of defoamer and 0.01-0.03 part of preservative into a stirring tank, stirring for 10-20 min at 600-800 r/min, adding 5-10 parts of weather-resistant filler, stirring for 20-30 min, adding 30-50 parts of slow-breaking modified anionic emulsified asphalt and 15-20 parts of modified emulsion No. 2 neoprene latex, continuing stirring for 20-40 min, adding 3-5 parts of composite anti-aging agent, stirring for 20-40 min, finally adding mixed dispersion liquid consisting of 0.4-1 part of cellulose ether thickening agent and 3-5 parts of water, continuing to add 0.1-0.5 part of polyurethane thickening agent after dispersing and stirring until the materials are uniform and free of particle sense, filtering after dispersing and stirring for 30min, and obtaining the weather-resistant asphalt-based waterproof coating.
The coating is applied to the roof repairing waterproofing, and the coating is optimally combined with the exposed self-adhesive asphalt-based waterproofing coiled material. Firstly, the coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer or a cement base surface of a to-be-repaired roof according to a construction method of two-coating one-cloth or three-coating two-cloth, and then the exposed self-adhesive asphalt-based waterproof coating coiled material is matched, so that the whole process can be cold-constructed, the dismantling and the protective layer are avoided, and the coating is particularly suitable for being directly used on the old waterproof layer during the renovation of the old residential area roof.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roof renovation and waterproofing are characterized in that the slow-breaking modified anionic emulsified asphalt is prepared by melting and uniformly blending an asphalt anti-aging agent and Zhonghai 90 asphalt through a conventional emulsification process.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the preparation method of the asphalt anti-aging agent are as follows by weight percent: 8 to 12 portions of propyl gallate, 3 to 6 portions of n-octanol, 5 to 10 portions of nano cerium oxide, 10 to 15 portions of C9 hydrogenated petroleum resin and 60 to 70 portions of ferrous complex. Firstly, adding propyl gallate and C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, timing, preserving heat, stirring for 20-30 min, cooling to 120-125 ℃, sequentially adding n-octanol and nano cerium oxide, stirring for 15-20 min, then adding ferrous complex, stirring at high speed (the rotating speed is 800-1200 RPM) for 30-40 min, and discharging.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roofing renovation waterproofing are characterized in that the addition amount of the asphalt anti-aging agent applied to the modified asphalt is 5.0-10%.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roofing renovation waterproofing are implemented, wherein the composite anti-aging agent is a mixture of SD1688 water-based antioxidant emulsion and 1130 water-based ultraviolet absorber, and the mass ratio of the SD1688 water-based antioxidant emulsion to the 1130 water-based ultraviolet absorber is 1.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating in roofing renovation waterproofing are implemented by using 250HBR as a cellulose ether thickening agent and OPTIFLO-H3300 VF as a polyurethane thickening agent, and the adding process and the adding amount are as described above.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roofing renovation waterproofing are characterized in that the modified emulsion is a composite modified system consisting of neoprene latex and pure acrylic emulsion, and the mass ratio of the neoprene latex to the pure acrylic emulsion is 1.
Preferably, the preparation method of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roofing repair waterproofing are adopted, and when the weather-resistant asphalt-based waterproof coating is applied to roofing repair waterproofing, an exposed self-adhesive asphalt-based waterproof coiled material is combined with the prepared coating; the exposed self-adhesive asphalt-based waterproof coiled material is self-adhesive on a single surface, the surface layer is coated with a fluorine plastic film, and the thickness of the film is 0.10-0.15 mm.
The invention selects slow-breaking modified anionic emulsified asphalt, which has good compatibility with a system and excellent weather resistance, and combines the water-based antioxidant and the ultraviolet absorbent in the composite aging agent and the excellent weather resistance of the modified emulsified asphalt, through the compounding of the additives and the weather resistance of each component, the prepared asphalt-based waterproof coating has excellent weather resistance, the service life of the waterproof coating is greatly prolonged, when the waterproof coating is applied to repairing roofs, the bonding effect with an old asphalt waterproof layer of a base surface is good, and the matched exposed self-adhesive asphalt-based waterproof coating coiled material can be cold-constructed in the whole process, is free from being dismantled and protected, and is particularly suitable for being directly used on the old waterproof layer when the old small-area roof is renovated.
Detailed Description
For better understanding of the present invention, the following examples are provided to further illustrate the present invention, but are not intended to limit the scope of the present invention.
Example 1:
a preparation method of a weather-resistant asphalt-based waterproof coating and a waterproof application in roof repair comprise the following steps:
preparing an asphalt anti-aging agent (in parts by mass):
adding 10 parts of propyl gallate and 15 parts of C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, timing, keeping warm, stirring for 20-30 min, cooling to 120-125 ℃, sequentially adding 3 parts of n-octanol and 5 parts of nano cerium oxide, stirring for 15-20 min, adding 65 parts of ferrous complex, stirring at high speed (800-1200 RPM) for 30-40 min, and discharging.
Preparing slow-cracking modified anionic emulsified asphalt (in parts by mass):
a. firstly, adding 100 parts of Zhonghai 90# asphalt into a kettle, stirring and heating to 150 ℃, adding 5 parts of the self-made asphalt anti-aging agent, and stirring for 30min for later use;
b. meanwhile, 100 parts of tap water and 4 parts of slow-breaking emulsifier RC-806 are sequentially added into the other kettle, the pH value is adjusted to 10.6-11.6 by using 40% sodium hydroxide solution, and the mixture is stirred and heated to 55 ℃ to prepare soap liquid;
c. the two are sent into a colloid mill, the flow ratio of the soap liquid to the asphalt is set to be 2.5.
Preparing the weather-resistant asphalt-based waterproof coating (in parts by mass): firstly, adding 40 parts of pure acrylic emulsion, 0.1 part of dispersant BYK23160, 0.1 part of defoamer ST2438 and 0.01 part of preservative Hanning 616 into a stirring tank, stirring for 10-20 min at 600-800 r/min, adding 5 parts of sheet sericite powder, stirring for 20-30 min, adding 30 parts of slow-breaking modified anionic emulsified asphalt and 20 parts of neoprene latex, continuing to stir for 20-40 min, adding 1.5 parts of SD1688 aqueous antioxidant and 1.5 parts of 1130 ultraviolet absorbent, stirring for 20-40 min, finally adding a mixed dispersion liquid consisting of 1 part of 250HBR hydroxyethyl cellulose and 5 parts of water, continuing to add 0.1 part of OPTIFLO-H3300 VF after dispersing and stirring until the mixture is uniform and free of granular sensation, dispersing and stirring for 30min, and filtering to obtain the weather-resistant asphalt-based waterproof coating;
when the coating is applied to roof waterproof repair, the coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer or a cement base surface of a to-be-repaired roof according to a construction method of coating one cloth by two or coating two cloth by three, and then the exposed self-adhesive asphalt-based waterproof coating coiled material is matched, so that the whole process can be cold-constructed, the removal and the protection layer are avoided, and the coating is particularly suitable for being directly used on the old waterproof layer when the old residential roof is repaired.
The exposed self-adhesive asphalt-based waterproof coating coiled material is self-adhesive on a single surface and comprises an isolation layer, a modified asphalt bonding layer and a fluoroplastic film enhancement layer. The fluoroplastic film of the surface layer coating film had a thickness of 0.10mm.
Example 2:
a preparation method of a weather-resistant asphalt-based waterproof coating and a waterproof application thereof in roof repairing comprises the following steps:
preparing an asphalt anti-aging agent (in parts by mass):
adding 12 parts of propyl gallate and 12 parts of C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, timing, keeping warm, stirring for 20-30 min, cooling to 120-125 ℃, sequentially adding 5 parts of n-octanol and 10 parts of nano cerium oxide, stirring for 15-20 min, adding 60 parts of ferrous complex, stirring at high speed (800-1200 RPM) for 30-40 min, and discharging.
Preparing slow-cracking modified anionic emulsified asphalt (in parts by mass):
a. firstly, adding 100 parts of Zhonghai No. 90 asphalt into a kettle, stirring and heating to 150 ℃, adding 8 parts of the self-made asphalt anti-aging agent, and stirring for 30min for later use;
b. meanwhile, 100 parts of tap water and 4 parts of slow-breaking emulsifier RC-806 are sequentially added into the other kettle, the pH value is adjusted to 10.6-11.6 by using 40% sodium hydroxide solution, and the mixture is stirred and heated to 55 ℃ to prepare soap liquid;
c. the two are sent into a colloid mill, the flow ratio of the soap liquid to the asphalt is set to be 2.5.
Preparing the weather-resistant asphalt-based waterproof coating (in parts by mass): firstly, adding 36 parts of pure acrylic emulsion, 0.3 part of dispersant BYK23160, 0.3 part of defoamer ST2438 and 0.02 part of preservative Hanning 616 into a stirring tank, stirring for 10-20 min at 600-800 r/min, adding 8 parts of sheet sericite powder, stirring for 20-30 min, adding 40 parts of slow-breaking modified anionic emulsified asphalt and 18 parts of neoprene latex, continuing to stir for 20-40 min, adding 2 parts of SD1688 aqueous antioxidant and 2 parts of 1130 ultraviolet absorbent, stirring for 20-40 min, finally adding 0.6 part of mixed dispersion liquid consisting of 250HBR hydroxyethyl cellulose and 4 parts of water, continuing to add 0.3 part of OPTIFLO-H3300 VF after dispersing and stirring for 30min, and filtering to obtain the weather-resistant asphalt-based waterproof coating;
when the coating is applied to the waterproof repair of the roof, the coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer or a cement base surface of the roof to be repaired according to a construction method of coating one by two or coating two by three, and then the exposed self-adhesive asphalt-based waterproof coating coiled material is matched, so that the coating can be cold-constructed in the whole process, is free from being dismantled and a protective layer is not required to be punched, and is particularly suitable for being directly used on the old waterproof layer when the old residential area roof is repaired.
The exposed self-adhesive asphalt-based waterproof coating coiled material is self-adhesive on a single surface and comprises an isolation layer, a modified asphalt bonding layer and a fluoroplastic film reinforcing layer. The fluoroplastic film of the surface layer coating film had a thickness of 0.12mm.
Example 3:
a preparation method of a weather-resistant asphalt-based waterproof coating and a waterproof application thereof in roof repairing comprises the following steps:
preparing an asphalt anti-aging agent (in parts by mass):
adding 8 parts of propyl gallate and 10 parts of C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, timing, keeping warm, stirring for 20-30 min, cooling to 120-125 ℃, sequentially adding 6 parts of n-octanol and 8 parts of nano cerium oxide, stirring for 15-20 min, adding 70 parts of ferrous complex, stirring at high speed (800-1200 RPM) for 30-40 min, and discharging.
Preparing slow-cracking modified anionic emulsified asphalt (in parts by mass):
a. firstly, adding 100 parts of Zhonghai 90# asphalt into a kettle, stirring and heating to 150 ℃, adding 10 parts of the self-made asphalt anti-aging agent, and stirring for 30min for later use;
b. meanwhile, 100 parts of tap water and 4 parts of slow-breaking emulsifier RC-806 are sequentially added into the other kettle, 40% sodium hydroxide solution is used for regulating the pH value to be 10.6-11.6, and the mixture is stirred and heated to 55 ℃ to prepare soap solution;
c. the two are sent into a colloid mill, the flow ratio of the soap liquid to the asphalt is set to be 2.5.
Preparing the weather-resistant asphalt-based waterproof coating (in parts by mass): firstly, adding 30 parts of pure acrylic emulsion, 0.5 part of dispersant BYK23160, 0.5 part of defoamer ST2438 and 0.03 part of preservative Hanning 616 into a stirring tank, stirring for 10-20 min at 600-800 r/min, adding 10 parts of sheet sericite powder, stirring for 20-30 min, adding 50 parts of slow-breaking modified anionic emulsified asphalt and 15 parts of neoprene latex, continuing to stir for 20-40 min, adding 2.5 parts of SD1688 aqueous antioxidant and 2.5 parts of 1130 ultraviolet absorbent, stirring for 20-40 min, finally adding a mixed dispersion liquid consisting of 0.4 part of 250HBR hydroxyethyl cellulose and 3 parts of water, continuing to add 0.5 part of OPTIFLO-H3300 VF after dispersing and stirring until the mixture is uniform and free of granular sensation, dispersing and stirring for 30min, and filtering to obtain the weather-resistant asphalt-based waterproof coating;
when the coating is applied to the waterproof repair of the roof, the coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer or a cement base surface of the roof to be repaired according to a construction method of coating one by two or coating two by three, and then the exposed self-adhesive asphalt-based waterproof coating coiled material is matched, so that the coating can be cold-constructed in the whole process, is free from being dismantled and a protective layer is not required to be punched, and is particularly suitable for being directly used on the old waterproof layer when the old residential area roof is repaired.
The exposed self-adhesive asphalt-based waterproof coating coiled material is self-adhesive on a single surface and comprises an isolation layer, a modified asphalt bonding layer and a fluoroplastic film reinforcing layer. The fluoroplastic film of the surface layer coating film had a thickness of 0.15mm.
Example 4:
a preparation method of a weather-resistant asphalt-based waterproof coating and a waterproof application thereof in roof repairing comprises the following steps:
preparing an asphalt anti-aging agent (in parts by mass):
adding 11 parts of propyl gallate and 14 parts of C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, timing, keeping the temperature, stirring for 20-30 min, cooling to 120-125 ℃, sequentially adding 4 parts of n-octanol and 9 parts of nano cerium oxide, stirring for 15-20 min, adding 64 parts of ferrous complex, stirring at a high speed (800-1200 RPM) for 30-40 min, and discharging.
Preparing slow-cracking modified anionic emulsified asphalt (in parts by mass):
a. firstly, adding 100 parts of Zhonghai 90# asphalt into a kettle, stirring and heating to 150 ℃, adding 9 parts of the self-made asphalt anti-aging agent, and stirring for 30min for later use;
b. meanwhile, 100 parts of tap water and 4 parts of slow-breaking emulsifier RC-806 are sequentially added into the other kettle, the pH value is adjusted to 10.6-11.6 by using 40% sodium hydroxide solution, and the mixture is stirred and heated to 55 ℃ to prepare soap liquid;
c. the two are sent into a colloid mill, the flow ratio of the soap liquid to the asphalt is set to be 2.5.
Preparing the weather-resistant asphalt-based waterproof coating (in parts by mass): firstly, adding 32 parts of pure acrylic emulsion, 0.4 part of dispersant BYK23160, 0.4 part of defoamer ST2438 and 0.02 part of preservative Hanning 616 into a stirring tank, stirring for 10-20 min at 600-800 r/min, adding 5 parts of sheet sericite powder, stirring for 20-30 min, adding 45 parts of slow-breaking modified anionic emulsified asphalt and 16 parts of neoprene latex, continuing to stir for 20-40 min, adding 1.8 parts of SD1688 aqueous antioxidant and 1.8 parts of 1130 ultraviolet absorbent, stirring for 20-40 min, finally adding 0.8 part of mixed dispersion liquid consisting of 250HBR hydroxyethyl cellulose and 4 parts of water, continuing to add 0.2 part of OPTIFLO-H3300 VF after dispersing and stirring until the mixture is uniform and free of granular sensation, dispersing and stirring for 30min, and filtering to obtain the weather-resistant asphalt-based waterproof coating;
when the coating is applied to roof waterproof repair, the coating is directly roll-coated or spray-coated on an old asphalt-based waterproof layer or a cement base surface of a to-be-repaired roof according to a construction method of coating one cloth by two or coating two cloth by three, and then the exposed self-adhesive asphalt-based waterproof coating coiled material is matched, so that the whole process can be cold-constructed, the removal and the protection layer are avoided, and the coating is particularly suitable for being directly used on the old waterproof layer when the old residential roof is repaired.
The exposed self-adhesive asphalt-based waterproof coating coiled material is self-adhesive on a single surface and comprises an isolation layer, a modified asphalt bonding layer and a fluoroplastic film reinforcing layer. The fluoroplastic film of the surface layer coating film had a thickness of 0.14mm.
Comparative example 1: a method for preparing a weather-resistant asphalt-based waterproof coating and application thereof to roofing repair and waterproofing, wherein the system does not contain a self-made asphalt anti-aging agent, and the other steps are the same as those in example 1. Tests show that the prepared asphalt-based waterproof coating has poor weather resistance, obvious fine cracks appear on the surface after the asphalt-based waterproof coating is exposed for more than 1 month, and the peeling strength of the asphalt-based waterproof coating and a compounded coiled material is obviously reduced.
Comparative example 2: the preparation method of the weather-resistant asphalt-based waterproof coating and the application thereof in roof repairing and waterproofing are the same as those of the example 1 except that the addition amounts of the modified latex and the slow-breaking modified anionic emulsified asphalt are adjusted. Tests show that the prepared asphalt-based waterproof coating is poor in bonding with an old asphalt waterproof layer of a base surface, cannot form full adhesion with the old base surface, and has a large water channeling hidden danger.
It can be seen from the comparison between examples 1-4 and comparative example 1 that the addition of the self-made asphalt anti-aging agent to modify and emulsify asphalt can significantly improve the weather resistance of the prepared asphalt-based coating, and greatly prolong the service life of the coating when applied to waterproofing in roof renovation.
The comparison of the examples 1-4 and the comparative example 2 shows that the dosage of the matched modified latex and the slow-breaking modified anionic emulsified asphalt can ensure the bonding effect with the base surface of the waste coiled material, and when the modified latex and the slow-breaking modified anionic emulsified asphalt are used in combination with the coiled material and applied to roof repair and waterproofing, the excellent composite waterproofing effect is ensured.
In conclusion, the preparation of the weather-resistant asphalt-based waterproof coating and the application of the weather-resistant asphalt-based waterproof coating to roofing renovation waterproofing are carried out, the slow-breaking modified emulsified asphalt is prepared by starting from an asphalt-based material aging mechanism, the water-based antioxidant in the composite aging agent, the ultraviolet absorbent and the excellent weather resistance of the modified emulsion are combined, the prepared asphalt-based waterproof coating has excellent weather resistance and the service life of the asphalt-based waterproof coating is greatly prolonged by compounding the additives and the weather resistance of each component, and when the weather-resistant asphalt-based waterproof coating is applied to the roofing renovation, the adhesion effect of the asphalt-based waterproof coating and a base surface old asphalt waterproof layer is good.
Attached table 1 a preparation method of a weather-resistant asphalt-based waterproof coating and application thereof to roof repairing waterproofing (in parts by weight):
attached table 2 a preparation method of a weather-resistant asphalt-based waterproof coating and application thereof to roof repairing waterproofing (in parts by weight):
Claims (7)
1. a preparation method of a weather-resistant asphalt-based waterproof coating is characterized by comprising the following raw materials in parts by weight: 30 to 50 parts of slow-breaking modified anionic emulsified asphalt, 45 to 60 parts of modified emulsion, 0.1 to 0.5 part of dispersant, 0.1 to 0.5 part of defoamer, 0.01 to 0.03 part of preservative, 5 to 10 parts of weather-resistant filler, 3 to 5 parts of composite anti-aging agent, 0.5 to 1.5 parts of thickener and 3 to 5 parts of water;
the preparation method comprises the following steps: adding 30 to 40 parts of modified emulsion No. 1 pure acrylic emulsion, 0.1 to 0.5 part of dispersant, 0.1 to 0.5 part of defoamer and 0.01 to 0.03 part of preservative into a stirring tank, stirring for 10 to 20min at 600 to 800r/min, adding 5 to 10 parts of weather-resistant filler, stirring for 20 to 30min, adding 30 to 50 parts of slow-breaking modified anionic emulsified asphalt and 15 to 20 parts of modified emulsion No. 2 neoprene latex, stirring for 20 to 40min, adding 3 to 5 parts of composite antioxidant, stirring for 20 to 40min, adding 0.4 to 1 part of cellulose ether thickener and 3 to 5 parts of water, stirring until the mixture is uniform and free of particle sense, adding 0.1 to 0.5 part of polyurethane thickener, stirring for 30min, and filtering to obtain the weather-resistant asphalt-based waterproof paint;
the slow-cracking modified anionic emulsified asphalt is prepared by a conventional emulsification process after an asphalt anti-aging agent and Zhonghai 90 asphalt are melted and uniformly blended;
the preparation method of the asphalt anti-aging agent comprises the following steps: 8-12 parts of propyl gallate, 3-6 parts of n-octyl alcohol, 5-10 parts of nano cerium oxide, 10-15 parts of C9 hydrogenated petroleum resin and 60-70 parts of a ferrous complex; firstly, adding propyl gallate and C9 hydrogenated petroleum resin into a stirring tank, heating to 145-150 ℃, keeping the temperature for timing, stirring for 20-30min, cooling to 120-125 ℃, sequentially adding n-octanol and nano-cerium oxide, stirring for 15-20 min, then adding a ferrous complex, and stirring at a high speed for 30-40min, thus discharging.
2. The method for preparing the weather-resistant asphalt-based waterproof coating according to claim 1, wherein the composite anti-aging agent is a mixture of SD1688 aqueous antioxidant emulsion and 1130 aqueous ultraviolet absorber, and the mass ratio of the SD1688 aqueous antioxidant emulsion to the 1130 aqueous ultraviolet absorber is 1.
3. The method for preparing a weather-resistant asphalt-based waterproof coating material according to claim 1, wherein the cellulose ether thickener is 250HBR, and the polyurethane thickener is OPTIFLO-H3300 VF.
4. The method for preparing the weather-resistant asphalt-based waterproof coating according to claim 1, wherein the modified emulsion is a composite modified system consisting of neoprene latex and acrylic emulsion, and the mass ratio of the neoprene latex to the acrylic emulsion is 1.
5. A weather-resistant asphalt-based waterproof coating prepared by the preparation method according to any one of claims 1 to 4.
6. Use of the weatherable asphalt-based waterproofing coating according to claim 5 for roofing renovation waterproofing.
7. The use according to claim 6, characterized in that in the application to renovation waterproofing, combined with the above-mentioned coating, is an exposed self-adhesive bitumen-based waterproofing coil; the exposed self-adhesive asphalt-based waterproof coiled material is self-adhesive on a single surface, the surface layer is coated with a fluorine plastic film, and the film thickness is 0.10-0.15mm.
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| JP2004126231A (en) * | 2002-10-02 | 2004-04-22 | Toppan Forms Co Ltd | Electrophotographic toner containing thermosensitive adhesive |
| CN109868064A (en) * | 2019-01-23 | 2019-06-11 | 雨中情防水技术集团有限责任公司 | A kind of aqueous large arch dam, strong-hydrophobicity pitch base waterproof coating of low viscosity and preparation method thereof |
| CN113683958A (en) * | 2021-09-06 | 2021-11-23 | 河北三棵树涂料有限公司 | Environment-friendly water-based asphalt waterproof coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004126231A (en) * | 2002-10-02 | 2004-04-22 | Toppan Forms Co Ltd | Electrophotographic toner containing thermosensitive adhesive |
| CN109868064A (en) * | 2019-01-23 | 2019-06-11 | 雨中情防水技术集团有限责任公司 | A kind of aqueous large arch dam, strong-hydrophobicity pitch base waterproof coating of low viscosity and preparation method thereof |
| CN113683958A (en) * | 2021-09-06 | 2021-11-23 | 河北三棵树涂料有限公司 | Environment-friendly water-based asphalt waterproof coating and preparation method thereof |
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