CN114437630A - Application and preparation method of non-cured rubber asphalt waterproof coating - Google Patents
Application and preparation method of non-cured rubber asphalt waterproof coating Download PDFInfo
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- CN114437630A CN114437630A CN202210293015.6A CN202210293015A CN114437630A CN 114437630 A CN114437630 A CN 114437630A CN 202210293015 A CN202210293015 A CN 202210293015A CN 114437630 A CN114437630 A CN 114437630A
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- 239000010426 asphalt Substances 0.000 title claims abstract description 63
- 229920001971 elastomer Polymers 0.000 title claims abstract description 61
- 239000005060 rubber Substances 0.000 title claims abstract description 61
- 238000000576 coating method Methods 0.000 title claims abstract description 46
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 19
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 239000004014 plasticizer Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000003607 modifier Substances 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 42
- 238000002156 mixing Methods 0.000 claims description 33
- 238000001816 cooling Methods 0.000 claims description 15
- 230000018044 dehydration Effects 0.000 claims description 15
- 238000006297 dehydration reaction Methods 0.000 claims description 15
- 238000011049 filling Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004567 concrete Substances 0.000 abstract description 5
- 238000005204 segregation Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 238000004078 waterproofing Methods 0.000 abstract description 3
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920005604 random copolymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- 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
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Paleontology (AREA)
- Electromagnetism (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of waterproof materials, and discloses an application and a preparation method of a non-cured rubber asphalt waterproof coating, which comprises the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer. The application and preparation method of the non-cured rubber asphalt waterproof coating can effectively solve the problem of repairing water resistance and leakage of a special concrete part in a building structure, the non-cured rubber asphalt waterproof coating has the characteristics of strong adhesion, high creep property, good elastic plasticity, stable performance, low segregation, excellent adhesion with a wet base layer and the like, and the non-cured rubber asphalt waterproof material can be applied to conventional building engineering roofs and underground waterproofing, and can be successfully applied to various fields such as tunnels, subways, landfill, sewage treatment and the like in the future.
Description
Technical Field
The invention relates to the technical field of waterproof materials, in particular to an application and a preparation method of a non-cured rubber asphalt waterproof coating.
Background
The non-solidified rubber asphalt waterproof paint (hereinafter referred to as non-solidified paint) is a waterproof paint which is prepared by using rubber, asphalt and softening oil as main components and adding a temperature control agent and a filler to mix and keep a viscous paste body within the service life. The coating can seal cracks and capillary holes of a base layer, can adapt to complex construction operation surfaces, is not cured for a long time after contacting with air, always keeps the characteristic of sticky colloid, has strong self-healing capability, is sticky when being touched and difficult to peel, and still has good bonding performance at the temperature of minus 20 ℃. The waterproof layer can solve the problems of fracture, flexural fatigue or advanced aging in a high stress state of the waterproof layer and the like caused by the fact that the cracking stress of the base layer is transmitted to the waterproof layer, and meanwhile, the capillary holes and the cracks of the base layer can be well sealed by the aid of the viscosity of the creep material, so that the problem of water channeling of the waterproof layer is solved, waterproof reliability is greatly improved, and the problem of compatibility when the existing waterproof coiled material and the waterproof coating are used in a composite mode can be solved.
The existing non-curing rubber asphalt waterproof coating is poor in ductility when being prepared, and needs to be improved.
Disclosure of Invention
The invention aims to provide an application and a preparation method of a non-cured rubber asphalt waterproof coating, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a non-cured rubber asphalt waterproof coating comprises the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer.
The preparation method of the non-cured rubber asphalt waterproof coating comprises the following steps:
S1
the bitumen and naphthenic oil plasticizers are poured into a mixing heater for stirring, grinding and homogenizing, and then the base raw material is obtained.
S2
And (4) continuously adding the powdered styrene-butadiene rubber, the 60-mesh desulfurized rubber powder and the heat-resistant modifier into the base raw material obtained in the step (S1), and continuously mixing under the condition of keeping the temperature unchanged.
S3
And (4) dehydrating after the stirring time is set in S2, adding the filler, the tackifying resin and the stabilizer after the dehydration, and stirring again to obtain a finished product.
S4
And (4) cooling the finished product obtained in the step (S3) in a cooling device, and filling the cooled finished product by using a precise metering filling device.
Preferably, the mixing time of the mixing heater in the step S1 is set to 1H, and the temperature of the mixing heater is set to 160-200 ℃.
Preferably, in step S2, the mixing time of the mixing heater is set to 1.5H, and the temperature of the mixing heater and the mixer is set to 200 ℃.
Preferably, the dehydration time in step S3 is set to 65 minutes, and the stirring and grinding operation time after dehydration is set to 2 hours, wherein the stirring time is set to 1 hour when the tackifying resin is added, the stabilizer is added after the stirring time is over and the stirring time is set to 1 hour, and the temperature is set to 155-190 ℃.
Preferably, the cooling time of the product in the step S4 is 6 h.
An application of a non-cured rubber asphalt waterproof coating in municipal engineering, subway tunnels, dams, pools, road bridges, roofs, bathroom rooms or underground waterproof and grouting plugging.
The function analysis of each component in the non-cured rubber asphalt waterproof coating is as follows:
asphalt:
the asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, mostly exists in a liquid or semisolid petroleum form, has a black surface, is soluble in carbon disulfide and carbon tetrachloride, is a waterproof, moistureproof and anticorrosive organic gel material, and is used for manufacturing a matrix material of a non-cured rubber asphalt waterproof coating.
Powdered styrene-butadiene rubber:
the powdered styrene-butadiene rubber is a random copolymer prepared by polymerizing styrene and butadiene through low-temperature emulsion, the high-temperature and low-temperature resistance and extensibility of an asphalt system can be improved by adding SBR, and the powdered styrene-butadiene rubber has lower cost compared with other rubbers and is convenient to produce and commonly used for producing modified asphalt coatings and coiled materials.
60-mesh desulfurized rubber powder:
the desulfurized rubber powder breaks the sulfide bond in the vulcanized rubber powder by a physical or chemical method, the surface of the desulfurized rubber powder is loose, a plurality of active groups are generated, the bonding performance with asphalt is favorably improved, meanwhile, the desulfurization reduces the high elasticity of the rubber powder, the plastic deformation capability is improved, and the desulfurized rubber powder plays a role in volume filling in the coating and also plays a role in improving the heat resistance and the flexibility of the coating.
Naphthenic oil plasticizer:
in the modified asphalt sealant and coating system, naphthenic oil belongs to a common and effective plasticizer, and the plasticizer is used for improving the cohesive strength, viscosity and low-temperature flexibility of the non-cured rubber asphalt waterproof coating and keeping the system in a gel state all the time.
Heat-resistant modifier:
the heat-resistant modifier can greatly improve the high-temperature performance in a modified asphalt system, does not influence the requirement on production viscosity, and has the advantages of small addition amount, convenient application, high compatibility, emission reduction and efficiency improvement.
Filling:
the solid matter can be added into the materials to improve the material performance, or can increase the volume and weight and reduce the material cost.
Tackifying resin:
can reduce the surface tension, improve the wetting quality of the surface of the base layer and ensure good bonding with the base layer.
A stabilizer:
can slow down reaction, maintain chemical balance, reduce surface tension, and prevent light, thermal decomposition or oxidative decomposition.
(III) advantageous effects
Compared with the prior art, the invention provides a novel anti-counterfeiting method, which has the following beneficial effects:
1. the non-cured rubber asphalt waterproof coating has the characteristics of strong cohesiveness, high creep property, better elastic plasticity, stable performance, low segregation, excellent bonding with a wet base layer and the like.
2. The non-curing rubber asphalt waterproof coating has the advantages of good high and low temperature resistance, no curing, strong cohesiveness, strong self-healing capability and very good creep capability, can seal capillary holes and fine cracks of a concrete base layer, and can effectively solve the repairing problems of water resistance and leakage of special parts of concrete in a building structure.
3. The non-cured rubber asphalt waterproof coating can be applied to conventional building engineering roofs and underground waterproofing, and can be successfully applied to the fields of tunnels, subways, landfill, sewage treatment and the like in the future, so that the coating is more diversified in application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The application and preparation method of the non-cured rubber asphalt waterproof coating comprise the following steps:
example one
An application and a preparation method of a non-cured rubber asphalt waterproof coating comprise the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer.
The preparation method of the non-cured rubber asphalt waterproof coating comprises the following steps:
S1
the bitumen and naphthenic oil plasticizers are poured into a mixing heater for stirring, grinding and homogenizing, and then the base raw material is obtained.
S2
And (4) continuously adding the powdered styrene-butadiene rubber, the 60-mesh desulfurized rubber powder and the heat-resistant modifier into the base raw material obtained in the step (S1), and continuously mixing under the condition of keeping the temperature unchanged.
S3
And (4) dehydrating after the stirring time is set in S2, adding the filler, the tackifying resin and the stabilizer after the dehydration, and stirring again to obtain a finished product.
S4
And (4) cooling the finished product obtained in the step (S3) in a cooling device, and filling the cooled finished product by using a precise metering filling device.
The stirring time of the mixing heater is set to be 1H in the step S1, the temperature of the mixing heating stirrer is set to be 200 degrees, the stirring time of the mixing heater is set to be 1.5H in the step S2, the temperature of the mixing heating stirrer is set to be 200 degrees, the dehydration time is set to be 65 minutes in the step S3, the stirring and grinding working time after dehydration is set to be 2 hours, the stirring time is set to be 1 hour when tackifying resin is added, a stabilizing agent is added after the stirring time is over and the stirring time is set to be 1 hour, the temperature is set to be 190 degrees, the cooling time of the finished product is set to be 6 hours in the step S4, and the application scene is the application in municipal works, subway tunnels, pools, water pools, road bridges, roofs, bathrooms or underground water-proof and grouting.
Example two
An application and a preparation method of a non-cured rubber asphalt waterproof coating comprise the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer.
The preparation method of the non-cured rubber asphalt waterproof coating comprises the following steps:
S1
the bitumen and naphthenic oil plasticizers are poured into a mixing heater for stirring, grinding and homogenizing, and then the base raw material is obtained.
S2
And (4) continuously adding the powdered styrene-butadiene rubber, the 60-mesh desulfurized rubber powder and the heat-resistant modifier into the base raw material obtained in the step (S1), and continuously mixing under the condition of keeping the temperature unchanged.
S3
And (4) dehydrating after the stirring time is set in S2, adding the filler, the tackifying resin and the stabilizer after the dehydration, and stirring again to obtain a finished product.
S4
And (4) cooling the finished product obtained in the step (S3) in a cooling device, and filling the cooled finished product by using a precise metering filling device.
The stirring time of the mixing heater is set to 45 minutes in step S1, the temperature of the mixing and heating stirrer is set to 170 ℃, the stirring time of the mixing heater is set to 1.5H in step S2, the temperature of the mixing and heating stirrer is set to 190 ℃, the dehydration time is set to 70 minutes in step S3, the stirring and grinding working time after dehydration is set to 2 hours, the stirring time is set to 1 hour when tackifying resin is added, stabilizer is added after the stirring time is over and the stirring time is set to 1 hour, the temperature is set to 170 ℃, the cooling time of a product in step S4 is 6 hours, and the application scene is the application in municipal works, subway tunnels, dams, water pools, road bridges, roofs, toilet baths or underground waterproof and grouting plugging.
EXAMPLE III
An application and a preparation method of a non-cured rubber asphalt waterproof coating comprise the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer.
The preparation method of the non-cured rubber asphalt waterproof coating comprises the following steps:
S1
the bitumen and naphthenic oil plasticizers are poured into a mixing heater for stirring, grinding and homogenizing, and then the base raw material is obtained.
S2
And (4) continuously adding the powdered styrene-butadiene rubber, the 60-mesh desulfurized rubber powder and the heat-resistant modifier into the base raw material obtained in the step (S1), and continuously mixing under the condition of keeping the temperature unchanged.
S3
And (4) dehydrating after the stirring time is set in S2, adding the filler, the tackifying resin and the stabilizer after the dehydration, and stirring again to obtain a finished product.
S4
And (4) cooling the finished product obtained in the step (S3) in a cooling device, and filling the cooled finished product by using a precise metering filling device.
The stirring time of the mixing heater is set to 45 minutes in step S1, the temperature of the mixing heating stirrer is set to 190 ℃, the stirring time of the mixing heater is set to 2H in step S2, the temperature of the mixing heating stirrer is set to 190 ℃, the dehydration time is set to 55 minutes in step S3, the stirring and grinding working time after dehydration is set to 2 hours, the stirring time is set to 1 hour when tackifying resin is added, stabilizer is added after the stirring time is over, the stirring time is set to 1 hour, the temperature is set to 185 ℃, the cooling time of the product is set to 9 hours in step S4, and the application scene is the application in municipal works, subway tunnels, dams, pools, road bridges, roofs, toilet bathrooms or underground waterproof and grouting plugging.
The effect analysis of each component in the non-cured rubber asphalt waterproof coating is as follows:
asphalt:
the asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, mostly exists in a liquid or semisolid petroleum form, has a black surface, is soluble in carbon disulfide and carbon tetrachloride, is a waterproof, moistureproof and anticorrosive organic gel material, and is used for manufacturing a matrix material of a non-cured rubber asphalt waterproof coating.
Powdered styrene-butadiene rubber:
the powdered styrene-butadiene rubber is a random copolymer prepared by polymerizing styrene and butadiene through low-temperature emulsion, the high-temperature and low-temperature resistance and extensibility of an asphalt system can be improved by adding SBR, and the powdered styrene-butadiene rubber has lower cost compared with other rubbers and is convenient to produce and commonly used for producing modified asphalt coatings and coiled materials.
60-mesh desulfurized rubber powder:
the desulfurized rubber powder breaks the sulfide bond in the vulcanized rubber powder by a physical or chemical method, the surface of the desulfurized rubber powder is loose, a plurality of active groups are generated, the bonding performance with asphalt is favorably improved, meanwhile, the desulfurization reduces the high elasticity of the rubber powder, the plastic deformation capability is improved, and the desulfurized rubber powder plays a role in volume filling in the coating and also plays a role in improving the heat resistance and the flexibility of the coating.
Naphthenic oil plasticizer:
in the modified asphalt sealant and coating system, naphthenic oil belongs to a common and effective plasticizer, and the plasticizer is used for improving the cohesive strength, viscosity and low-temperature flexibility of the non-cured rubber asphalt waterproof coating and keeping the system in a gel state all the time.
Heat-resistant modifier:
the heat-resistant modifier can greatly improve the high-temperature performance in a modified asphalt system, does not influence the requirement on production viscosity, and has the advantages of small addition amount, convenient application, high compatibility, emission reduction and efficiency improvement.
Filling:
the solid matter can be added into the materials to improve the material performance, or can increase the volume and weight and reduce the material cost.
Tackifying resin:
can reduce the surface tension, improve the wetting quality of the surface of the base layer and ensure good bonding with the base layer.
A stabilizer:
can slow down reaction, maintain chemical balance, reduce surface tension, and prevent light, thermal decomposition or oxidative decomposition.
The invention has the beneficial effects that: the non-cured rubber asphalt waterproof coating has the characteristics of strong cohesiveness, high creep property, better elastic plasticity, stable performance, low segregation, excellent bonding with a wet base layer and the like, has good high and low temperature resistance, never curing, strong cohesiveness and strong self-healing capability, has very good creep capability, can seal capillary holes and fine cracks of a concrete base layer, can effectively solve the repairing problem of water resistance and leakage of special parts of concrete in a building structure, can be applied to conventional building engineering roofs and underground waterproofing, can be successfully applied to various fields such as tunnels, subways, landfill, sewage treatment and the like in the future, and can be applied more variously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The preparation method of the non-cured rubber asphalt waterproof coating is characterized by comprising the following raw materials in parts by weight: 90 parts of asphalt, 5 parts of powdered styrene-butadiene rubber, 20 parts of 60-mesh desulfurized rubber powder, 45 parts of naphthenic oil plasticizer, 1 part of heat-resistant modifier, 5 parts of filler, tackifying resin and 4 parts of stabilizer;
the preparation method of the non-cured rubber asphalt waterproof coating comprises the following steps:
S1
pouring asphalt and naphthenic oil plasticizer into a mixing heater for stirring, grinding and homogenizing, thereby obtaining a base raw material;
S2
continuously adding powdered styrene-butadiene rubber, 60-mesh desulfurized rubber powder and a heat-resistant modifier into the basic raw material obtained in the step S1, and continuously mixing under the condition of keeping the temperature unchanged;
S3
dehydrating after the stirring time set in S2 is over, adding the filler, the tackifying resin and the stabilizer after the dehydration is over, and stirring again to obtain a finished product;
S4
and (4) cooling the finished product obtained in the step (S3) in a cooling device, and filling the cooled finished product by using a precise metering filling device.
2. The method for preparing a non-curing rubber asphalt waterproof coating material according to claim 1, wherein the method comprises the following steps: in the step S1, the stirring time of the mixing heater is set to 1H, and the temperature of the mixing heater stirrer is set to 160-200 ℃.
3. The method for preparing a non-curing rubber asphalt waterproof coating material according to claim 1, wherein the method comprises the following steps: in step S2, the mixing time of the mixing heater is set to 1.5H, and the temperature of the mixing heater agitator is set to 200 ℃.
4. The method for preparing a non-curing rubber asphalt waterproof coating material according to claim 1, wherein the method comprises the following steps: in the step S3, the dehydration time is set to 65 minutes, and the stirring and grinding operation time after dehydration is set to 2 hours, wherein the stirring time when adding the tackifying resin is set to 1 hour, the stabilizer is added after the stirring time is over and the stirring time is set to 1 hour, and the temperature is set to 155 degrees and 190 degrees.
5. The method for preparing a non-curing rubber asphalt waterproof coating material according to claim 1, wherein the method comprises the following steps: the cooling time of the product in the step S4 is 6 h.
6. The application of the non-cured rubber asphalt waterproof coating is characterized in that: the application scene is the application in municipal works, subway tunnels, dams, pools, road bridges, roofs, bathroom or underground waterproof and grouting plugging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210293015.6A CN114437630A (en) | 2022-03-24 | 2022-03-24 | Application and preparation method of non-cured rubber asphalt waterproof coating |
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| CN202210293015.6A CN114437630A (en) | 2022-03-24 | 2022-03-24 | Application and preparation method of non-cured rubber asphalt waterproof coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116396685A (en) * | 2023-02-21 | 2023-07-07 | 任丘市华创新型防水材料有限公司 | Application and preparation method of non-cured rubber asphalt waterproof coating |
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2022
- 2022-03-24 CN CN202210293015.6A patent/CN114437630A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116396685A (en) * | 2023-02-21 | 2023-07-07 | 任丘市华创新型防水材料有限公司 | Application and preparation method of non-cured rubber asphalt waterproof coating |
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