CN107880778A - The polyurethane-modified asphalt waterproofing paint of antimicrobial form and its production method - Google Patents
The polyurethane-modified asphalt waterproofing paint of antimicrobial form and its production method Download PDFInfo
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- CN107880778A CN107880778A CN201711167461.8A CN201711167461A CN107880778A CN 107880778 A CN107880778 A CN 107880778A CN 201711167461 A CN201711167461 A CN 201711167461A CN 107880778 A CN107880778 A CN 107880778A
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- calcium carbonate
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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
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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
- 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
- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to a kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form, it is made up of the raw material of following parts by weight：25~30 parts of aqueous polyurethane emulsion；70 75 parts of 90# asphalt；40 60 parts of water；20 25 parts of polychloroprene latex, 46 parts of emulsifying agent, 24 parts of polyvinyl alcohol, 13 parts of (3 aminopropyl) triethoxysilane；23 parts of chitosan；13 parts of 2 methyl, 4 isothiazoline, 3 ketone；12 parts of dimethyl silicone polymer；35 parts of ATHC, 0.1 0.5 parts of hydrogenated rosin pentaerythritol ester；13 parts of polyacrylamide；10 15 parts of modified nano calcium carbonate.The coating film forming compactness that the present invention is prepared is good, stability is high, adhesion strength for the waterproof layer that is formed in building and cement concrete basal plane is big, good water-proof effect, by modification, the performance such as antibiotic property, waterproof water resistance, resistance to ag(e)ing and resistance to acids and bases of the product is all greatly improved.
Description
Technical field
The present invention relates to chemistry painting industry field, and in particular to a kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form and
Its production method.
Background technology
The waterproof problem of building is not only related to the work of people, living environment, and has influence on making for building
Use the life-span.Architectural waterproof material refers to the moisture prevented in rainwater, underground water, plumbing, corrosive liquids and air, steam etc.
Invade the material of building.Building water-proof paint has easy construction, the characteristics of to labyrinth strong adaptability, in construction
Middle dosage is very big.Water-repellent paint is mainly used in that building is some may be by the waterproof of the structure position of water erosion, protection against the tide and anti-
Ooze.Therefore the high- and low-temperature resistance performance to water-repellent paint, antiseptic property there are certain requirements.
Existing building water-proof paint mainly has polyurethane water-proof paint, polymer cement waterproof paint, pitch class waterproof
Coating and modified emulsifying asphalt class water-repellent paint, waterproof paint of polymer and asphalt, silicon rubber waterproof coating etc..Pitch is a kind of brown
The organic cementing material of color or dark brown, has that raw material inexpensively enriches, easy construction, water-proof function are strong, waterproof cycle length etc. is prominent
Go out feature, be indispensable material in civil engineering construction, had a wide range of applications in the engineerings such as building, highway, bridge.
Asphalt waterproofing paint is the solvent-borne type or water-emulsifying type waterproof coatings configured using pitch as base-material, and solvent-borne type asphalt waterproofing paint refers to
Unmodified asphalt is directly dissolved in gasoline equal solvent and is configured to, also known as adhesive bitument primer.Emulsion type pitch is prevented
Water paint refers to asphalt under chemical emulsifier or the effect of mineral emulsifying agent, is dispersed in water, forms stable moisture
The coating that granular media is formed.
In terms of carrying out preparing water-repellent paint as raw material using pitch, the document of correlation is retrieved such as：Application No.
201310359231.7 Chinese patent discloses a kind of Emulsificated asphalt water-proof painting material for building, and it is the original by following weight parts
Material composition：Asphalt 65-70, SBS thermoplastic elastomer (TPE) 10-20, adipic acid propanediol polyester 3-4, turpentine oil 4-
5th, gas-phase silica 10-20, blanc fixe 4-6, ethoxylated dodecyl alcohol 1-2, pull open powder 2-3, Aluminate 1-2, Malaysia
Acid anhydrides 1-2, coalescents 3-5, appropriate amount of water, the invention coating can effectively resist basic crack, prevent waterproof membrane to be broken, and glue
It is strong to tie performance, the stable bubble-free of film is heat-resisting, scrub performance is strong, firmly can be adhered on the basal plane of different material, fits
It is wide with property.And for example the Chinese patent of Application No. 201010293450.6 discloses a kind of asphalt waterproof paint for building and its system
Preparation Method, the asphalt waterproof paint for building, its raw material composition are：Plasticizer：20-25 parts by weight, modifying agent：6-8 weight
Part, 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.With being formulated, reasonable in design, intensity is good, can adapt to high temperature low temperature for the invention
The advantages of weather conditions, safety and environmental protection, product quality are stable.
Two documents mentioned above, although all be modified pitch to obtain performance more preferably water-repellent paint,
It is that it is not all modified when preparing asphalt waterproofing paint to its used filler such as barium sulfate and talcum powder etc., and does not enter
The modified filler of row is used to have the shortcomings that obvious when being filled in various polymer when preparing coating：First, surface hydrophilic is dredged
Oil, in polymeric inner bad dispersibility；Second, it is poor with high polymer body adhesion, it has been only capable of compatibilization.These are not changed
The filler surface hydrophilic oleophobic of property, it is poor with the compatibility and dispersiveness of polymer, can be to the property of product during for preparing coating
It can have an impact.Such as when being filled using a high proportion of filler such as barium sulfate and talcum powder, polymeric material performance can be caused
Drastically decline, so that product is difficult to be processed and used.Moreover, moreover, in the antibiotic property of coating in document above-mentioned
Aspect is not modified, weaker to the resistivity of the microorganisms such as mould using rear building.Because containing organic in coating
Material, growth and breeding for microorganism and algae provide abundant material base, and microorganism and algae are in metabolism
During the metabolite such as caused enzyme and organic acid can be destroyed organic substance, film in coating.When film by
After the infringement of microorganism and algae, film forming matter is dissolved, and base material suffers erosion so as to lose the defensive ability/resistance ability to environment, finally
Until discoloration, foaming, efflorescence, coming off, protected material is caused to lose protective layer.And coating antibiotic property it is weak if, just hold
Easily destroyed the film of coating.Especially for the building that some are under wet environment, for example, some bridge bottoms or
Be culvert its often residing environment is more moist, mould easily grows, if the antibiotic property of water-repellent paint is weak, building
Thing is subject to brokenly ring, so as to reduce the service life of building.
At present, it is water emulsification asphalt paint and solvent-borne type to use pitch to make the main preparation method of water-repellent paint for raw material
Asphalt paint.But water emulsification pitch makes cumbersome, for disadvantage precisely due to be water-based, its film forming compactness is poor, thus
Water proofing property and resistance to ag(e)ing are all poor；And due to largely harmful organic matter be present in solvent-borne type, it is impossible to wait construction indoors.And
And soluble asphalt base waterproof coating stability in the market is poor, alkali resistance and acid resistance are poor, and all technical is difficult to reach
To related request.Therefore, to prepare building water-proof paint using pitch in terms of carry out research that performance is prepared be more excellent
The higher asphalt waterproofing paint of different such as waterproof, antibacterial etc. performance plays an important role to the service life of building.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided a kind of film forming compactness is good, and stability is high,
The polyurethane-modified asphalt waterproofing paint of the good antimicrobial form of antibacterial, water resistance and its production method, using the inventive method
The property such as the antimicrobial form polyurethane-modified asphalt waterproofing paint water resistance, antibiotic property, resistance to ag(e)ing and the resistance to acids and bases that are prepared
It can be obtained for and greatly improve, 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 of antimicrobial form, is made up of the raw material of following parts by weight：Aqueous polyurethane emulsion
25~30 parts；90# asphalt 70-75 parts；Water 40-60 parts；Polychloroprene latex 20-25 parts, emulsifying agent 4-6 parts, polyvinyl alcohol 2-4
Part, (3- aminopropyls) triethoxysilane 1-3 parts；Chitosan 2-3 parts；MIT 1-3 parts；Poly- two
Methylsiloxane 1-2 parts；ATHC 3-5 parts, hydrogenated rosin pentaerythritol ester 0.1-0.5 parts；Polyacrylamide
1-3 parts；Modified nano calcium carbonate 10-15 parts.
The polyurethane-modified asphalt waterproofing paint of above-mentioned antimicrobial form, described aqueous polyurethane emulsion are commercially available any one
Kind aqueous polyurethane emulsion；Described emulsifying agent is that tallow alkyl amide groups polyamines and polyethenoxy ether press 9:2 part by weight
It is mixed to get.
Emulsifying agent is a kind of surfactant, can reduce the surface tension of water, so that rubber asphalt compound particles
Connected with water.Emulsifying agent is added when preparing coating can reduce the interfacial tension of water and rubber asphalt mixture, so as to
The energy state of emulsion is reduced, increases emulsion intercalation method.Emulsifying agent used in the present invention is cationic emulsifier tallow alkyl
The emulsifying agent that amide groups polyamines and nonionic emulsifier polyethenoxy ether mix, it can make by the emulsifying agent being combined
Pitch it is uniform and stable be dispersed in water to form coating, play preferably emulsification and emulsion-stabilizing effect.
The polyurethane-modified asphalt waterproofing paint of above-mentioned antimicrobial form, the preparation method of described modified nano calcium carbonate are：
Nano-calcium carbonate calcium powder is dehydrated in 115~120 DEG C, is then added in high-speed mixer, is stirred and heat up, 90 DEG C are stopped
Only heat, the chelating titanate coupling agent KR- 201 of nano-calcium carbonate quality 2.0% is added, 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 one by one, are distinguished again at 90 DEG C
Modified 10~15 min, shut down, and discharging, obtain modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint of described antimicrobial form, its production method comprise the following steps：
（1）90# asphalt is heated to 125-130 DEG C according to parts by weight, adds polychloroprene latex and acetyl tributyl citrate three
Own ester mixes 5-10 minutes, obtains mixture A,
（2）The water of parts by weight is heated to 65-70 DEG C, then by emulsifying agent, polyvinyl alcohol, (3- aminopropyls) triethoxy
Silane, chitosan, MIT, dimethyl silicone polymer, hydrogenated rosin pentaerythritol ester and poly- third
Acrylamide is added to the water, and obtains mixture B；
（3）Mixture A and mixture B is sent into mulser simultaneously and emulsified, mixture C is made, is added in mixture C
Aqueous polyurethane emulsion and modified nano calcium carbonate, it is stirred in stirred tank of then making a gift to someone uniformly, the poly- ammonia of antimicrobial form is made
Ester modified asphalt waterproofing paint.
Chitosan (chitosan) used in the present invention is the chitin (chitin) being widely present by nature by de-
What acetyl effect obtained, chemical name is Chitosan (1-4) -2- amino-B-D glucose, relative molecular mass is 2 ×
105~7 × 105, chitosan has the physicochemical properties such as good adsorptivity, film forming, fibre forming property, hygroscopicity and moisture retention, wide spectrum
The excellent biology performances such as antibiotic property, biological functionality, biocompatibility, hypotoxicity, biodegradability, chitin are one
The natural antiseptic of kind.Chitosan-phospholipid complex has preferable antibacterial activity, can suppress some fungies, bacterium and virus
Growth and breeding.Chitosan is used to prepare coating, can be to greatly improving the antibiotic property of coating.
MIT used is a kind of bactericide of high activity, the minimum suppression to many microorganisms
Concentration processed all in below 10mg/l, there is extremely strong killing and inhibitory action, and low concentration to bacterium, mould, saccharomycete, algae
Just effectively.The product security is good, toxicity grading category low toxicity, biodegradable, no teratogenesis mutagenesis reaction, in acid and oxidisability
It is more stable under environment；The putrid and deteriorated of coating can not only be prevented by being added in coating, improve the antiseptic property of coating, can be with
Make film that there is the ability for resisting fungus attack.
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 filled in various polymer all without by being modified in conventional coating
The shortcomings that obvious is had when middle：When surface hydrophilic oleophobic, in polymeric inner bad dispersibility；Second, combined with high polymer body
Power is poor, has been only capable of compatibilization.These filler surface hydrophilic oleophobics in the past used, with the compatibility of polymer and it is dispersed compared with
Difference, the performance of product can be had an impact during for preparing coating.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 whole emulsion
In system, good dispersion, and compared to the modified Nano for using the calcium carbonate not being modified to be used as filler, the present invention
Calcium carbonate can make the performances such as the gloss of coating, levelability, pliability, hardness more excellent.
ATHC, it is micro- yellow transparent oily liquid, there is the good reproductive performance of resistance to mould, it is 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 for preparing the coating of the present invention using ATHC
Property, improve the water resistance and scratch-resistant of film, painting can also further be improved by strengthening extensibility, obdurability and the adhesive force of film
The fungicidal properties of material.Sodium Polyacrylate used in the present invention, anti-settling agent and dispersant can be played a part of in the present invention, can made
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, the polyurethane-modified asphalt waterproofing paint of antimicrobial form of the invention employs aqueous polyurethane emulsion to pitch in the preparation
It is modified, by the way that the relatively low aqueous polyurethane emulsion of viscosity is added in matrix pitch, makes by suitable preparation technology
Obtain polychloroprene latex in reaction solution to interact with asphalt, produce crosslinking curing, and then obtain uniform and stable modified pitch,
There is excellent storage stability, high temperature resistant, ageing-resistant by the modified obtained asphalt waterproofing paint of aqueous polyurethane emulsion
And Rut resistance and spalling resistance.
2nd, (3- aminopropyls) triethoxysilane of the present invention is the change for containing multiple functional groups in a kind of molecule
Compound, a part of functional group in its molecule can crosslink reaction, the net that enhancing pitch is formed with other raw materials with pitch
Shape structure, the physical property of modified pitch is improved, which part group can also chemically react with rubber molecule, make rubber
The network structure of molecule produces more crosslinked actions, and another part functional group can chemically react with cement concrete,
Produce chemical crosslinking and physics mortise and tenon synergy so that manufactured coating can form firm, close waterproof layer, improve and apply
The water resistance of material.And the coupling agent of the invention added can improve inorganic filler and disperse in the polymer, have anti-settling effect
Fruit, the amount of filler in coating can be increased, improve the dispersiveness of added filler, improve impact strength, the stream of composite
Dynamic property, the waterproof, anti-corrosion and abrasive resistance of coating can be increased.
3rd, for the present invention when preparing coating, the chitosan (chitosan) of addition is a kind of natural antiseptic.Have preferably
Antibacterial activity, can suppress some fungies, bacterium and virus growth and breeding.MIT used
It is a kind of bactericide of high activity, has extremely strong killing and inhibitory action to bacterium, mould, saccharomycete, algae, by chitosan
The fungus and mildew resistance performance of product coating can be improved by being added to MIT as raw material in coating, greatly
The big antibiotic property for improving coating.And ATHC used has the good reproductive performance of resistance to mould, is used for
The antibacterial and mouldproof performance of coating can also further be improved by preparing coating.The antimildew and antibacterial significant effect of coating produced by the present invention,
For that in building, can prevent moss from growing, holding surface cleaning.
4th, the polyurethane-modified asphalt waterproofing paint of the of the invention antimicrobial form to be prepared through addition aqueous polyurethane emulsion with
And after (3- aminopropyls) triethoxysilane etc. is modified, the asphalt waterproofing paint being prepared is resistant to the inorganic of low concentration
Acid, alkali and salt corrosion, there is good flexibility.The asphalt waterproofing paint can penetrate into certain depth in building, thus by
Ultraviolet irradiates and atmospheric aging influence is smaller, can effectively prevent rain drop erosion, and keeps primary colors, strong with durability,
Weatherproof feature.The polyurethane-modified asphalt waterproofing paint of antimicrobial form that the present invention is prepared can be separately as film waterproof material
With its film forming shearing strength is high, and bridge floor crackle is repaired for being additionally aided in bridge construction；Film forming is fast, construction is simple, quick,
It is easy to mechanical work；The coating has good impermeability, has enough cohesive forces, good water-proof effect with building basal plane.
5th, the polyurethane-modified asphalt waterproofing paint film forming compactness of antimicrobial form that the present invention is prepared is good, and stability is high,
By modification, the performance such as antibiotic property, water resistance, resistance to ag(e)ing and resistance to acids and bases of the product is all greatly improved, and
And manufacture craft is simple, overcomes conventional water emulsification asphalt paint and make cumbersome, film forming compactness is poor, water proofing property and resistance to ag(e)ing
The shortcomings that poor.The polyurethane-modified asphalt waterproofing paint of antimicrobial form that the present invention is prepared can effectively resist basic crack,
Waterproof membrane is prevented to be broken, adhesive property is strong, the stable bubble-free of film, heat-resisting, scrub performance is strong, can firmly be adhered to not
With on the basal plane of material, applicability is wide.
Embodiment
Embodiment 1
A kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form, is made up of the raw material of following parts by weight：
25 parts of aqueous polyurethane emulsion；70 parts of 90# asphalt；40 parts of water；20 parts of polychloroprene latex, 4 parts of emulsifying agent, polyvinyl alcohol
2 parts, 1 part of (3- aminopropyls) triethoxysilane；2 parts of chitosan；1 part of MIT；Poly dimethyl
1 part of siloxanes；3 parts of ATHC, 0.1 part of hydrogenated rosin pentaerythritol ester；1 part of polyacrylamide；Modified Nano
10 parts of calcium carbonate.
Described aqueous polyurethane emulsion is any one commercially available aqueous polyurethane emulsion；Described emulsifying agent is tallow
Alkylamidoalkyl polyamines and polyethenoxy ether press 9:2 part by weight is mixed to get.
The preparation method of described modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dehydrated in 115 DEG C, then
It is added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add 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 one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil, it is modified 10 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint of described antimicrobial form, its production method comprise the following steps：
（1）90# asphalt is heated to 125 DEG C according to parts by weight, adds polychloroprene latex and ATHC
Mix 10 minutes, obtain mixture A,
（2）The water of parts by weight is heated to 65 DEG C, then by emulsifying agent, polyvinyl alcohol, (3- aminopropyls) triethoxysilicane
Alkane, chitosan, MIT, dimethyl silicone polymer, hydrogenated rosin pentaerythritol ester and polypropylene
Acid amides is added to the water, and obtains mixture B；
（3）Mixture A and mixture B is sent into mulser simultaneously and emulsified, mixture C is made, is added in mixture C
Aqueous polyurethane emulsion and modified nano calcium carbonate, it is stirred in stirred tank of then making a gift to someone uniformly, the poly- ammonia of antimicrobial form is made
Ester modified asphalt waterproofing paint.
Embodiment 2
A kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form, is made up of the raw material of following parts by weight：
26 parts of aqueous polyurethane emulsion；72 parts of 90# asphalt；55 parts of water；23 parts of polychloroprene latex, 5 parts of emulsifying agent, polyvinyl alcohol
3 parts, 2 parts of (3- aminopropyls) triethoxysilane；2.5 parts of chitosan；2 parts of MIT；Poly- diformazan
1.5 parts of radical siloxane；4 parts of ATHC, 0.3 part of hydrogenated rosin pentaerythritol ester；2 parts of polyacrylamide；It is modified
13 parts of nano-calcium carbonate.
Described aqueous polyurethane emulsion is any one commercially available aqueous polyurethane emulsion；Described emulsifying agent is tallow
Alkylamidoalkyl polyamines and polyethenoxy ether press 9:2 part by weight is mixed to get.
The preparation method of described modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dehydrated in 119 DEG C, then
It is added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add 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 one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil, it is modified 13 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint of described antimicrobial form, its production method comprise the following steps：
（1）90# asphalt is heated to 128 DEG C according to parts by weight, adds polychloroprene latex and ATHC
Mix 6 minutes, obtain mixture A,
（2）The water of parts by weight is heated to 66 DEG C, then by emulsifying agent, polyvinyl alcohol, (3- aminopropyls) triethoxysilicane
Alkane, chitosan, MIT, dimethyl silicone polymer, hydrogenated rosin pentaerythritol ester and polypropylene
Acid amides is added to the water, and obtains mixture B；
（3）Mixture A and mixture B is sent into mulser simultaneously and emulsified, mixture C is made, is added in mixture C
Aqueous polyurethane emulsion and modified nano calcium carbonate, it is stirred in stirred tank of then making a gift to someone uniformly, the poly- ammonia of antimicrobial form is made
Ester modified asphalt waterproofing paint.
Embodiment 3
A kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form, is made up of the raw material of following parts by weight：
30 parts of aqueous polyurethane emulsion；75 parts of 90# asphalt；60 parts of water；25 parts of polychloroprene latex, 6 parts of emulsifying agent, polyvinyl alcohol
4 parts, 3 parts of (3- aminopropyls) triethoxysilane；3 parts of chitosan；3 parts of MIT；Poly dimethyl
2 parts of siloxanes；5 parts of ATHC, 0.5 part of hydrogenated rosin pentaerythritol ester；3 parts of polyacrylamide；Modified Nano
15 parts of calcium carbonate.
Described aqueous polyurethane emulsion is any one commercially available aqueous polyurethane emulsion；Described emulsifying agent is tallow
Alkylamidoalkyl polyamines and polyethenoxy ether press 9:2 part by weight is mixed to get.
The preparation method of described modified nano calcium carbonate is：Nano-calcium carbonate calcium powder is dehydrated in 120 DEG C, then
It is added in high-speed mixer, stirs and heat up, 90 DEG C stops heating, add 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 one by one nano-calcium carbonate quality 2.0% stearic acid, 0.5%
Coconut oil and 1% technical white oil, it is modified 15 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
The polyurethane-modified asphalt waterproofing paint of described antimicrobial form, its production method comprise the following steps：
（1）90# asphalt is heated to 130 DEG C according to parts by weight, adds polychloroprene latex and ATHC
Mix 5 minutes, obtain mixture A,
（2）The water of parts by weight is heated to 70 DEG C, then by emulsifying agent, polyvinyl alcohol, (3- aminopropyls) triethoxysilicane
Alkane, chitosan, MIT, dimethyl silicone polymer, hydrogenated rosin pentaerythritol ester and polypropylene
Acid amides is added to the water, and obtains mixture B；
（3）Mixture A and mixture B is sent into mulser simultaneously and emulsified, mixture C is made, is added in mixture C
Aqueous polyurethane emulsion and modified nano calcium carbonate, it is stirred in stirred tank of then making a gift to someone uniformly, the poly- ammonia of antimicrobial form is made
Ester modified asphalt waterproofing paint.
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 antibacterial type polyurethane of the present invention
Other materials compatibilities used in modified waterproof asphalt material are good, and bulk density diminishes, and illustrate modified nano-calcium carbonate
Calcium dispersive property is good, is not easy to reunite.
The polyurethane-modified asphalt waterproofing paint of antimicrobial form that the present invention is prepared is detected, detection project and result
It is as shown in table 1 below：
Above-mentioned visible, 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, is surveyed by antibacterial and mouldproof
Examination experiment, antibacterial and mouldproof effect are good.
Claims (4)
1. a kind of polyurethane-modified asphalt waterproofing paint of antimicrobial form, it is characterised in that be made up of the raw material of following parts by weight：Water
25~30 parts of polyaminoester emulsion of property；90# asphalt 70-75 parts；Water 40-60 parts；Polychloroprene latex 20-25 parts, emulsifying agent 4-6
Part, polyvinyl alcohol 2-4 parts, (3- aminopropyls) triethoxysilane 1-3 parts；Chitosan 2-3 parts；2- methyl -4- isothiazolines -
3- ketone 1-3 parts；Dimethyl silicone polymer 1-2 parts；ATHC 3-5 parts, hydrogenated rosin pentaerythritol ester 0.1-0.5
Part；Polyacrylamide 1-3 parts；Modified nano calcium carbonate 10-15 parts.
2. the polyurethane-modified asphalt waterproofing paint of antimicrobial form according to claim 1, it is characterised in that described is water-based poly-
Urethane emulsion is any one commercially available aqueous polyurethane emulsion；Described emulsifying agent is tallow alkyl amide groups polyamines and polyoxy
Propylene ether presses 9:2 part by weight is mixed to get.
3. the polyurethane-modified asphalt waterproofing paint of antimicrobial form according to claim 1, it is characterised in that described modification is received
Rice calcium carbonate preparation method be：Nano-calcium carbonate calcium powder is dehydrated in 115~120 DEG C, is then added to high-speed mixer
In, stir and heat up, 90 DEG C stop heating, add the chelating titanate coupling agent KR- of nano-calcium carbonate quality 2.0%
201, in 90 DEG C of modified 10min；Add stearic acid, 0.5% coconut oil and 1% work of nano-calcium carbonate quality 2.0% one by one again
Industry white oil, it is modified 10~15 min respectively again at 90 DEG C, shuts down, discharging, obtains modified nano calcium carbonate.
4. the polyurethane-modified asphalt waterproofing paint of antimicrobial form according to claim 1, it is characterised in that production method includes
Following steps：
（1）90# asphalt is heated to 125-130 DEG C according to parts by weight, adds polychloroprene latex and acetyl tributyl citrate three
Own ester mixes 5-10 minutes, obtains mixture A,
（2）The water of parts by weight is heated to 65-70 DEG C, then by emulsifying agent, polyvinyl alcohol, (3- aminopropyls) triethoxy
Silane, chitosan, MIT, dimethyl silicone polymer, hydrogenated rosin pentaerythritol ester and poly- third
Acrylamide is added to the water, and obtains mixture B；
（3）Mixture A and mixture B is sent into mulser simultaneously and emulsified, mixture C is made, is added in mixture C
Aqueous polyurethane emulsion and modified nano calcium carbonate, it is stirred in stirred tank of then making a gift to someone uniformly, the poly- ammonia of antimicrobial form is made
Ester modified asphalt waterproofing paint.
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