CN108047949A - Polyurethane-modified asphalt waterproofing paint for building and its production method - Google Patents
Polyurethane-modified asphalt waterproofing paint for building and its production method Download PDFInfo
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- CN108047949A CN108047949A CN201711167465.6A CN201711167465A CN108047949A CN 108047949 A CN108047949 A CN 108047949A CN 201711167465 A CN201711167465 A CN 201711167465A CN 108047949 A CN108047949 A CN 108047949A
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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
- C09D5/08—Anti-corrosive 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- 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
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
Abstract
The present invention relates to a kind of polyurethane-modified asphalt waterproofing paints for building, are made of the raw material of following parts by weight:25~30 parts of base polyurethane prepolymer for use as;70 75 parts of 90# asphalt;40 60 parts of water;20 25 parts of polychloroprene latex, 47 parts of emulsifier, 24 parts of polyvinyl alcohol, 13 parts of coupling agent;12 parts of polypropylene glycol;35 parts of acetyl trihexyl citrate, 0.1 0.5 parts of hydrogenated rosin pentaerythritol ester;13 parts of polyacrylamide;10 15 parts of modified nano calcium carbonate.The polyurethane-modified asphalt waterproofing paint film forming compactness for building that the present invention is prepared is good, stability is high, for the waterproof layer that is formed in building and building basal plane adhesion strength is big, good water-proof effect, and, by modification, the performances such as water resistance, resistance to ag(e)ing and resistance to acid and alkali of the product are all greatly improved, and manufacture craft is simple, overcome the shortcomings that previous water emulsification asphalt paint making is cumbersome, and film forming compactness is poor, water proofing property and resistance to ag(e)ing are poor.
Description
Technical field
The present invention relates to chemistry painting industry fields, and in particular to a kind of polyurethane-modified asphalt waterproofing paint for building and
Its production method.
Background technology
The waterproof problem of building is not only related to the work of people, living environment, but also influences making for building
Use the service life.Architectural waterproof material refers to moisture, steam prevented in rainwater, underground water, plumbing, corrosive liquids and air etc.
Invade the material of building.The position that building needs to carry out water-proofing treatment is mainly roofing, metope, ground and basement, is led
Will by coating, sprawl, clog, be perfused, the techniques such as be bonded and construct.Domestic waterproof material is developed so far, and basically forms door
The industrial system that class is more complete, production and application technology are fairly perfect, species includes modified bituminous pitch coiled material, macromolecule waterproof is rolled up
The five major class product such as material, water-repellent paint, sealing material, plugging material and rigidity water-proofing material.
Building water-proof paint has the characteristics of easy construction, adaptable to labyrinth, and dosage is very in construction
Greatly.Water-repellent paint is mainly used for some waterproof, moisture-proof and antiseepages of structure position that may be subject to water erosion of building etc..Therefore
High- and low-temperature resistance performance, antiseptic property to water-repellent paint there are certain requirements.Existing building water-proof paint mainly has polyurethane to prevent
Water paint, polymer cement waterproof paint, pitch class water-repellent paint and modified emulsifying asphalt class water-repellent paint, polymer-asphalt are prevented
Water paint, silicon rubber waterproof coating etc..Pitch is a kind of brown or the organic cementitious material of dark brown, has the raw material inexpensively rich
The outstanding features such as richness, easy construction, water-proof function are strong, waterproof cycle length, are indispensable materials in civil engineering construction,
It has a wide range of applications in the engineerings such as building, highway, bridge.Asphalt waterproofing paint be the solvent-borne type that is configured using pitch as base-material or
Water-emulsifying type waterproof coatings, solvent-borne type asphalt waterproofing paint refer to unmodified asphalt being directly dissolved in gasoline equal solvent
And be configured to, it is also known as adhesive bitument primer.Emulsified asphalt waterproofing coating refers to asphalt in chemical emulsifier or mineral breast
It under agent effect, is dispersed in water, forms the coating that stable aqueous dispersion is formed.
In terms of carrying out preparing construction waterproof coating as raw material using pitch, relevant document is retrieved such as:Application
Number a kind of Emulsificated asphalt water-proof painting material for building is disclosed for 201310359231.7 Chinese patent, it is by following weight parts
Raw material composition:Asphalt 65-70, SBS thermoplastic elastomer (TPE) 10-20, adipic acid propanediol polyester 3-4, turpentine
Oily 4-5, gas-phase silica 10-20, blanc fixe 4-6, ethoxylated dodecyl alcohol 1-2, pull open powder 2-3, Aluminate 1-
2nd, maleic anhydride 1-2, coalescents 3-5, appropriate amount of water, the invention coating can effectively resist basic crack, prevent waterproof membrane
Fracture, adhesive property is strong, and film stablizes bubble-free, heat-resisting, scrub performance is strong, can firmly be adhered to the base of different material
On face, applicability is wide.For another example the Chinese patent of Application No. 201010293450.6 discloses a kind of asphalt waterproofing for building and applies
Material and preparation method thereof, the asphalt waterproof paint for building, raw material composition are:Plasticizer:20-25 parts by weight, modifying agent:6-
8 parts by weight, pitch:25-30 parts by weight, filler:20-30 parts by weight, tackifier:4-6 parts by weight, crosslinking coupling agent:
0.2-0.3 parts by weight, dispersant:0.3-0.5 parts by weight.There is formula to design for the invention, and reasonable, intensity is good, can adapt to height
The advantages of weather conditions of warm low temperature, safety and environmental protection, product quality are stablized.Two documents mentioned above, although all to pitch
Carried out it is modified to obtain performance more preferably water-repellent paint, but its when preparing asphalt waterproofing paint all not to it used by
Filler such as barium sulfate and talcum powder etc. are modified, and when filler not being modified is used to prepare coating is filled in various polymerizations
The shortcomings that apparent is had when in object:When surface hydrophilic oleophobic, in polymeric inner bad dispersibility;Second is that with high polymer bulk junction
It is poor with joint efforts, it has been only capable of compatibilization.These filler surface hydrophilic oleophobics not being modified, with the compatibility of polymer and scattered
Property is poor, and for preparing coating when can have an impact the performance of product.Such as when using a high proportion of filler such as barium sulfate and cunning
Mountain flour can cause polymer material performance drastically to decline when fillings, so that product is difficult to be processed and use.
At present, it is water emulsification asphalt paint and solvent-borne type that pitch is used, which to make the main production method of water-repellent paint for raw material,
Asphalt paint.But water emulsification pitch make it is cumbersome, disadvantage precisely due to be it is aqueous, it form a film compactness it is poor, thus
Water proofing property and resistance to ag(e)ing are all poor;And due to there is largely harmful organic matter in solvent-borne type, it is impossible to wait construction indoors.At present
Soluble asphalt base waterproof coating stability in the market is poor, and alkali resistance and acid resistance are poor, and all technical is difficult to reach related
It is required that.Therefore, to carrying out carrying out studying in terms of preparing building water-proof paint using pitch that more excellent performance of change is prepared
Property asphalt waterproofing paint plays an important role to the service life of building.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of film forming compactness is good, stability is high,
The good polyurethane-modified asphalt waterproofing paint for building of water resistance and its production method, are prepared into using the method for the present invention
To the performances such as polyurethane-modified asphalt waterproofing paint water resistance, resistance to ag(e)ing and resistance to acid and alkali be obtained for and greatly carry
Height, the waterproof layer of formation and the adhesion strength of building basal plane are big, good water-proof effect.
To achieve the above object, this method adopts the following technical scheme that:
A kind of polyurethane-modified asphalt waterproofing paint for building, is made of the raw material of following parts by weight:Base polyurethane prepolymer for use as 25
~30 parts;70-75 parts of 90# asphalt;40-60 parts of water;20-25 parts of polychloroprene latex, 4-7 parts of emulsifier, polyvinyl alcohol 2-4
Part, 1-3 parts of coupling agent;1-2 parts of polypropylene glycol;3-5 parts of acetyl trihexyl citrate, hydrogenated rosin pentaerythritol ester 0.1-0.5
Part;1-3 parts of polyacrylamide;10-15 parts of modified nano calcium carbonate.
Above-mentioned polyurethane-modified asphalt waterproofing paint for building, the base polyurethane prepolymer for use as are different with diphenyl-methane two
Cyanate, polyetherdiol are primary raw material, and the performed polymer with NCO end groups being polymerized, molecular weight is in 4000-
Between 10000;It has good physical property, and cohesive force is strong.In the prior art polyurethane-modified asphalt waterproofing paint be by
Two components prepared respectively in advance are mixed in a certain ratio reaction and are made, wherein generally use toluene di-isocyanate(TDI)
(TDI) and polyether polyol prepares component A.TDI belongs to hazardous shipment product, have during the storage of hypertoxic, volatile, reproduction to
The health care belt of operating personnel carrys out high risks, and in recent years, due to oil price rise, and toluene di-isocyanate(TDI) (TDI)
Application field is extensive, causes TDI price rising all the way.The present invention is using '-diphenylmethane diisocyanate as the hard of performed polymer
Section, for polyetherdiol as soft segment, base polyurethane prepolymer for use as product volatility used is small, also small with respect to for TDI to human toxicity
Very much, industry security protection and the health of operating personnel are conducive to.
The emulsifier presses 8 for octadecyltrimethylammonium chloride and octadecanoic acid ester of polyethylene glycol:The weight of 1-2
Amount ratio is mixed to get.Emulsifier is a kind of surfactant, can reduce the surface tension of water, so that rubber asphalt mixes
Composition granule is connected with water.Emulsifier is added in when preparing coating can reduce the interface of water and rubber asphalt mixture
Power so as to reduce the energy state of lotion, increases emulsion intercalation method.Emulsifier used in the present invention is cationic emulsifier ten
The emulsifier that eight alkyl trimethyl ammonium chlorides and nonionic emulsifier octadecanoic acid ester of polyethylene glycol mix passes through
The emulsifier being combined can make pitch it is uniform and stable be dispersed in water to form coating, play preferably emulsification and emulsion-stabilizing
Effect.
Above-mentioned polyurethane-modified asphalt waterproofing paint for building, the coupling agent are gamma-aminopropyl-triethoxy silicon
One kind or more in alkane, gamma-methyl allyl acyloxypropyl trimethoxysilane and N- phenyl -3- TSL 8330s
Kind.
Above-mentioned polyurethane-modified asphalt waterproofing paint for building, the preparation method of the modified nano calcium carbonate are:
By nano-calcium carbonate calcium powder in 115~120 DEG C of dehydration and drying, it is then added in high-speed mixer, stirs and heat up, 90 DEG C are stopped
It only heats, the chelating titanate coupling agent KR- 201 of nano-calcium carbonate quality 2.0% is added in, in 90 DEG C of modified 10min;Again
Stearic acid, 0.5% coconut oil and 1% technical white oil of nano-calcium carbonate quality 2.0% are added in one by one, are distinguished again at 90 DEG C
Modified 10~15 min, shut down, and discharging obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint for building, production method include the following steps:
(1)90# asphalt is heated to 125-130 DEG C according to parts by weight, adds in polychloroprene latex and acetyl tributyl citrate three
Own ester is mixed 5-10 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 65-70 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent, polypropylene glycol, hydrogenation
Pentalyn and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
What the modified nano calcium carbonate used in the present invention primarily served in the formula of coating of the present invention is the effect of filler,
Filler such as kaolin, barium sulfate and talcum powder etc. used are all without by being modified, being filled in various polymer in previous coating
The shortcomings that apparent is had when middle:When surface hydrophilic oleophobic, in polymeric inner bad dispersibility;Second is that it is combined with high polymer body
Force difference has been only capable of compatibilization.These previous used filler surface hydrophilic oleophobics, with the compatibility of polymer and it is dispersed compared with
Difference, for preparing coating when, can have an impact the performance of product.The present invention is by the way that nano-calcium carbonate calcium powder is modified
To modified nano calcium carbonate, intergranular agglomeration power is reduced, adds lipophile, improve the compatible of calcium carbonate and polymer
Property and dispersiveness, enhance chemical affinity, for making coating, modified nano calcium carbonate can be uniformly dispersed in entire lotion
In system, good dispersion, and compared to the modified Nano that the calcium carbonate not being modified is used to be used as filler, the present invention
Calcium carbonate can make the performances such as gloss, levelability, flexibility, the hardness of coating more excellent.
Acetyl trihexyl citrate for micro- yellow transparent oily liquid, has the good reproductive performance of resistance to mould, heat-resisting, resistance to
It is cold, fast light, have excellent water-resistance, plasticizing efficiency is high, is a kind of good environment-friendly type nontoxic plasticizer, with the paint film of its plasticising very
Oil resistant and tallow.The softness of film can not only be increased by being used to prepare coating of the invention using acetyl trihexyl citrate
Property, improve the water resistance and scratch-resistant of film, painting can also be further improved by enhancing extensibility, obdurability and the adhesive force of film
The fungicidal properties of material.Polyacrylamide used in the present invention can play the role of anti-settling agent and dispersant in the present invention, can make
Solid part of coating is distributed evenly in solvent, makes coating not stratified for a long time.Polychloroprene latex of the present invention has on the market
Sale.
Beneficial effects of the present invention are:
1st, polyurethane-modified asphalt waterproofing paint for building of the invention employ in the preparation base polyurethane prepolymer for use as to pitch into
Row is modified, and by the way that the relatively low base polyurethane prepolymer for use as of viscosity is added in matrix pitch, is caused instead by suitable preparation process
Polychloroprene latex in liquid is answered to interact with asphalt, generates crosslinking curing, and then obtains uniform and stable modified pitch, is passed through
The modified obtained asphalt waterproofing paint of base polyurethane prepolymer for use as has excellent storage stability, high temperature resistant, ageing-resistant and anti-
Track and spalling resistance.
2nd, coupling agent of the present invention is compound or mixture containing multiple functional groups, molecule in a kind of molecule
In a part of functional group can crosslink reaction with pitch, the net structure that enhancing pitch is formed with other raw materials improves
The physical property of modified pitch, which part group can also be chemically reacted with rubber molecule, make the netted of rubber molecule
Structure generates more crosslinked actions, and another part functional group can also chemically react with cement concrete, generates chemistry
Crosslinking and physics mortise and tenon synergistic effect so that manufactured coating can form firm, close waterproof layer, improve the waterproof of coating
Performance.The adhesion strength of the waterproof layer that coating of the present invention is formed and building basal plane is big, good water-proof effect.And the present invention adds
The coupling agent entered can improve inorganic filler to be disperseed in the polymer, is had result of prevention, can be increased the amount of filler in coating, change
The dispersiveness of kind added in filler improves impact strength, the mobility of composite material, can increase waterproof, the anti-corrosion of coating
And abrasive resistance.
3rd, after adding in base polyurethane prepolymer for use as and coupling agent etc. and being modified the present invention be prepared it is for building poly-
Urethane modified waterproof asphalt material is resistant to inorganic acid, alkali and the salt corrosion of low concentration, has good flexibility.This is for building poly-
Urethane modified waterproof asphalt material can penetrate into certain depth in building, thus by ultraviolet light irradiation and atmospheric aging influenced compared with
It is small, rain drop erosion can be effectively prevented, and primary colors is kept, weatherproof feature strong with durability.The present invention is prepared
Water-repellent paint can be used separately as film waterproof material, available in the architectural engineerings such as kitchen and toilet, basement.Prepared by the present invention
Polyurethane-modified asphalt waterproofing paint film forming shearing strength for building is high, and film forming is fast, construction is simple, quick, convenient for mechanical work;
The coating has good impermeability, has enough cohesive forces, good water-proof effect with building basal plane.
4th, the polyurethane-modified asphalt waterproofing paint film forming compactness for building that the present invention is prepared is good, and stability is high,
For the waterproof layer that is formed in building and building basal plane adhesion strength is big, good water-proof effect, by modification, the product
The performances such as water resistance, resistance to ag(e)ing and resistance to acid and alkali are all greatly improved, and manufacture craft is simple, are overcome previous
The shortcomings that making of water emulsification asphalt paint is cumbersome, and film forming compactness is poor, water proofing property and resistance to ag(e)ing are poor.The present invention is prepared
Polyurethane-modified asphalt waterproofing paint for building can effectively resist basic crack, waterproof membrane is prevented to be broken, adhesive property is strong,
Film stablizes bubble-free, heat-resisting, scrub performance is strong, can firmly be adhered on the basal plane of different material, applicability is wide.
Specific embodiment
Embodiment 1
A kind of polyurethane-modified asphalt waterproofing paint for building, is made of the raw material of following parts by weight:Base polyurethane prepolymer for use as 25
Part;70 parts of 90# asphalt;40 parts of water;20 parts of polychloroprene latex, 4 parts of emulsifier, 2 parts of polyvinyl alcohol, coupling agent N- phenyl -3-
1 part of TSL 8330;1 part of polypropylene glycol;3 parts of acetyl trihexyl citrate, hydrogenated rosin pentaerythritol ester 0.1
Part;1 part of polyacrylamide;10 parts of modified nano calcium carbonate.
The base polyurethane prepolymer for use as is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerize
The performed polymer with NCO end groups formed, molecular weight is between 4000-10000;The emulsifier is octadecyl trimethyl
Ammonium chloride and octadecanoic acid ester of polyethylene glycol press 8:1 weight ratio is mixed to get.
The preparation method of the modified nano calcium carbonate is:By nano-calcium carbonate calcium powder in 115 DEG C of dehydration and drying, then
It is added in high-speed mixer, stirs and heats up, 90 DEG C stop heating, add in the chelating type metatitanic acid of nano-calcium carbonate quality 2.0%
Ester coupling agent KR- 201, in 90 DEG C of modified 10min;Again add in one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil are modified 10min respectively again at 90 DEG C, shut down, and discharging obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint for building, production method include the following steps:
(1)90# asphalt is heated to 125 DEG C according to parts by weight, adds in polychloroprene latex and acetyl trihexyl citrate
It is mixed 10 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 65 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent N- phenyl -3- aminopropyls
Trimethoxy silane, polypropylene glycol, hydrogenated rosin pentaerythritol ester and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
Embodiment 2
A kind of polyurethane-modified asphalt waterproofing paint for building, is made of the raw material of following parts by weight:Base polyurethane prepolymer for use as 27
Part;72 parts of 90# asphalt;50 parts of water;22 parts of polychloroprene latex, 5 parts of emulsifier, 3 parts of polyvinyl alcohol, coupling agent γ-aminopropyl
2 parts of triethoxysilane;1.5 parts of polypropylene glycol;4 parts of acetyl trihexyl citrate, 0.3 part of hydrogenated rosin pentaerythritol ester;It is poly-
2 parts of acrylamide;12 parts of modified nano calcium carbonate.
The base polyurethane prepolymer for use as is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerize
The performed polymer with NCO end groups formed, molecular weight is between 4000-10000;The emulsifier is octadecyl trimethyl
Ammonium chloride and octadecanoic acid ester of polyethylene glycol press 8:2 weight ratio is mixed to get.
The preparation method of the modified nano calcium carbonate is:By nano-calcium carbonate calcium powder in 118 DEG C of dehydration and drying, then
It is added in high-speed mixer, stirs and heats up, 90 DEG C stop heating, add in the chelating type metatitanic acid of nano-calcium carbonate quality 2.0%
Ester coupling agent KR- 201, in 90 DEG C of modified 10min;Again add in one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil are modified 12min respectively again at 90 DEG C, shut down, and discharging obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint for building, production method include the following steps:
(1)90# asphalt is heated to 127 DEG C according to parts by weight, adds in polychloroprene latex and acetyl trihexyl citrate
It is mixed 8 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 68 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent gamma-aminopropyl-triethoxy
Silane, polypropylene glycol, hydrogenated rosin pentaerythritol ester and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
Embodiment 3
A kind of polyurethane-modified asphalt waterproofing paint for building, is made of the raw material of following parts by weight:Base polyurethane prepolymer for use as 30
Part;75 parts of 90# asphalt;60 parts of water;25 parts of polychloroprene latex, 7 parts of emulsifier, 4 parts of polyvinyl alcohol, 3 parts of coupling agent;Poly- the third two
2 parts of alcohol;5 parts of acetyl trihexyl citrate, 0.5 part of hydrogenated rosin pentaerythritol ester;3 parts of polyacrylamide;Modified nano-meter caco 3
15 parts of calcium.
The base polyurethane prepolymer for use as is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerize
The performed polymer with NCO end groups formed, molecular weight is between 4000-10000;The emulsifier is octadecyl trimethyl
Ammonium chloride and octadecanoic acid ester of polyethylene glycol press 8:2 weight ratio is mixed to get.The coupling agent is γ-aminopropyl
Triethoxysilane, gamma-methyl allyl acyloxypropyl trimethoxysilane and N- phenyl -3- TSL 8330s three
The mixture of person.
The preparation method of the modified nano calcium carbonate is:By nano-calcium carbonate calcium powder in 120 DEG C of dehydration and drying, then
It is added in high-speed mixer, stirs and heats up, 90 DEG C stop heating, add in the chelating type metatitanic acid of nano-calcium carbonate quality 2.0%
Ester coupling agent KR- 201, in 90 DEG C of modified 10min;Again add in one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil are modified 15 min respectively again at 90 DEG C, shut down, and discharging obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint for building, production method include the following steps:
(1)90# asphalt is heated to 130 DEG C according to parts by weight, adds in polychloroprene latex and acetyl trihexyl citrate
It is mixed 5 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 70 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent, polypropylene glycol, hydrogenation pine
Fragrant pentaerythritol ester and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
Embodiment 4
A kind of polyurethane-modified asphalt waterproofing paint for building, is made of the raw material of following parts by weight:Base polyurethane prepolymer for use as 22
Part;73 parts of 90# asphalt;55 parts of water;23 parts of polychloroprene latex, 5 parts of emulsifier, 2.5 parts of polyvinyl alcohol, 1.5 parts of coupling agent;It is poly-
1 part of propylene glycol;3 parts of acetyl trihexyl citrate, 0.2 part of hydrogenated rosin pentaerythritol ester;2 parts of polyacrylamide;Modified Nano
13 parts of calcium carbonate.
The base polyurethane prepolymer for use as is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerize
The performed polymer with NCO end groups formed, molecular weight is between 4000-10000;The emulsifier is octadecyl trimethyl
Ammonium chloride and octadecanoic acid ester of polyethylene glycol press 8:1 weight ratio is mixed to get.
The coupling agent is gamma-aminopropyl-triethoxy-silane and gamma-methyl allyl acyloxypropyl trimethoxysilane
The mixture of the two.
The preparation method of the modified nano calcium carbonate is:Nano-calcium carbonate calcium powder is dry in 115~120 DEG C of dehydrations
It is dry, it is then added in high-speed mixer, stirs and heat up, 90 DEG C stop heating, add in the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min;Add in one by one again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil are modified 10 min respectively again at 90 DEG C, shut down, and discharging obtains modified Nano carbon
Sour calcium.
The polyurethane-modified asphalt waterproofing paint for building, production method include the following steps:
(1)90# asphalt is heated to 125-130 DEG C according to parts by weight, adds in polychloroprene latex and acetyl tributyl citrate three
Own ester is mixed 7 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 65-70 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent, polypropylene glycol, hydrogenation
Pentalyn and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
Quality testing
Modified nano calcium carbonate and unmodified nano-calcium carbonate performance prepared by the present invention is compared, and obtains modified Nano
Calcium carbonate reduces 48.6% than unmodified nano-calcium carbonate oil factor, and settling volume reduces 57.6%, and viscosity reduces
59.9%, bulk density reduces 16.4%, illustrates modified nano-calcium carbonate oleophilic drainage, with present invention polyurethane for building
Other materials compatibilities used in modified waterproof asphalt material are good, and bulk density becomes smaller, and illustrate modified nano-calcium carbonate
Calcium dispersion performance is good, is not easy to reunite.
The polyurethane-modified asphalt waterproofing paint that the present invention is prepared is detected, detection project and result such as following table
Shown in 1:
It is above-mentioned as it can be seen that the properties of coating produced by the present invention meet national standard JC/T408-2005 (emulsion type pitches
Water-repellent paint) standard, and also most of performance of coating produced by the present invention is substantially better than national standard.
Claims (5)
1. a kind of polyurethane-modified asphalt waterproofing paint for building, which is characterized in that be made of the raw material of following parts by weight:It is poly-
25~30 parts of urethane performed polymer;70-75 parts of 90# asphalt;40-60 parts of water;20-25 parts of polychloroprene latex, 4-7 parts of emulsifier,
2-4 parts of polyvinyl alcohol, 1-3 parts of coupling agent;1-2 parts of polypropylene glycol;3-5 parts of acetyl trihexyl citrate, hydrogenated rosin Ji Wusi
0.1-0.5 parts of alcohol ester;10-15 parts of 1-3 parts of polyacrylamide and modified nano calcium carbonate.
2. polyurethane-modified asphalt waterproofing paint for building according to claim 1, which is characterized in that the polyurethane
Performed polymer is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, and what is be polymerized is pre- with NCO end groups
Aggressiveness, molecular weight is between 4000-10000;The emulsifier is octadecyltrimethylammonium chloride and polyoxyethylene
Alcohol monoleate presses 8:The weight ratio of 1-2 is mixed to get.
3. polyurethane-modified asphalt waterproofing paint for building according to claim 1, which is characterized in that the coupling agent
For gamma-aminopropyl-triethoxy-silane, gamma-methyl allyl acyloxypropyl trimethoxysilane and N- phenyl -3- aminopropyls three
One or more in methoxy silane.
4. polyurethane-modified asphalt waterproofing paint for building according to claim 1, which is characterized in that the modification is received
Rice calcium carbonate preparation method be:By nano-calcium carbonate calcium powder in 115~120 DEG C of dehydration and drying, high-speed mixer is then added to
In, it stirs and heats up, 90 DEG C stop heating, add in the chelating titanate coupling agent KR- of nano-calcium carbonate quality 2.0%
201, in 90 DEG C of modified 10min;Add in stearic acid, 0.5% coconut oil and 1% work of nano-calcium carbonate quality 2.0% one by one again
Industry white oil is modified 10~15 min respectively again at 90 DEG C, shuts down, and discharging obtains modified nano calcium carbonate.
5. polyurethane-modified asphalt waterproofing paint for building according to claim 1, which is characterized in that production method includes
Following steps:
(1)90# asphalt is heated to 125-130 DEG C according to parts by weight, adds in polychloroprene latex and acetyl tributyl citrate three
Own ester is mixed 5-10 minutes, obtains mixture A,
(2)The water of parts by weight is heated to 65-70 DEG C, then by emulsifier, polyvinyl alcohol, coupling agent, polypropylene glycol, hydrogenation
Pentalyn and polyacrylamide are added to the water, and obtain mixture B;
(3)Mixture A and mixture B are sent into mulser emulsify simultaneously, mixture C is made, is added in mixture C
Base polyurethane prepolymer for use as and modified nano calcium carbonate are stirred in stirred tank of then making a gift to someone uniformly, polyurethane for building are made
Modified waterproof asphalt material.
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CN111171610A (en) * | 2020-03-25 | 2020-05-19 | 安徽虹达道路桥梁工程有限公司 | Modified waterproof coating for roads and bridges and preparation method thereof |
CN111253730A (en) * | 2020-03-05 | 2020-06-09 | 河南师范大学 | Modified material for improving micro-surfacing forming quality and using method thereof |
CN115160913A (en) * | 2022-06-24 | 2022-10-11 | 重庆科顺新材料科技有限公司 | Liquid waterproof coiled material and preparation method and use method thereof |
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CN106118136A (en) * | 2016-06-28 | 2016-11-16 | 安徽华宇管道制造有限公司 | A kind of processing technique of modified calcium carbonate |
CN107177210A (en) * | 2017-06-21 | 2017-09-19 | 长安大学 | A kind of polyurethane-modified pitch and preparation method thereof |
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