CN107955534A - Polyurethane-modified asphalt waterproofing paint of mould-proof-type and preparation method thereof - Google Patents
Polyurethane-modified asphalt waterproofing paint of mould-proof-type and preparation method thereof Download PDFInfo
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- CN107955534A CN107955534A CN201711168887.5A CN201711168887A CN107955534A CN 107955534 A CN107955534 A CN 107955534A CN 201711168887 A CN201711168887 A CN 201711168887A CN 107955534 A CN107955534 A CN 107955534A
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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
- C09D5/08—Anti-corrosive paints
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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
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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
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
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Abstract
A kind of polyurethane-modified asphalt waterproofing paint of mould-proof-type and preparation method thereof, the coating is made of base polyurethane prepolymer for use as, 90# asphalt, modified nano calcium carbonate, diethylenetriamine base propyl trimethoxy silicane, tackifier, n-butyl acetate, citric acid, dibutyl tin laurate, polyoxyethylene polyoxy propyl alcohol amidogen ether, aerosil and mould inhibitor, its preparation method:After using urethane performed polymer and modified nano calcium carbonate, 90# asphalt is modified;Diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate are added in reaction kettle, stirred evenly;Add after mould inhibitor, aerosil, tackifier and dibutyl tin laurate stir evenly;Add polyoxyethylene polyoxy propyl alcohol amidogen ether;Then proceed to stir, up to no powder floats;All materials in reaction kettle are sheared again, until 90# asphalt is uniformly dispersed with unclassified stores, up to product of the present invention.Product fungus and mildew resistance performance of the present invention is good.
Description
Technical field
The present invention relates to a kind of preparation method of coating, the polyurethane-modified asphalt waterproofing paint of particularly a kind of mould-proof-type and
Its preparation method, belongs to Chemical composition that and its preparing technical field.
Background technology
Asphalt has good caking property, ageing resistance and waterproof ability, be widely used as building the road for a long time,
The material such as waterproof and sealing.It is domestic and international waterproof, seepage control engineering the advantages of having raw material to be easy to get for waterproofing work, is cheap etc.
In one of the material that is most widely used;Polyurethane asphalt has applied widely, long lifespan, and weatherability, resistance to deformation, stretching are strong
Degree is high, elongation percentage is big, and, acid-resisting adaptable to base-layer contraction and craze and transfiguration, alkali resistance, corrosion-resistanting waterproofing performance are superior, appoint
What complex region is all easily constructed, and solves traditional anti-corrosion waterproof material, such as the downslide of coating facade, coiled material hollowing, and complexity
Part operates difficult problem.Traditional anti-corrosion waterproof material is replaced in completely
It is as follows that application retrieves the document in relation to polyurethane-modified asphalt waterproofing paint:
Application number: 201510402309.8;Applicant:Liyang Condar prestige Industrial Co., Ltd.;Denomination of invention:Modified polyurethane
Asphalt adhesive and its preparation and application;Summary:A kind of modified polyurethane asphalt glue and its preparation and application, proportionally
End hydroxy butadiene, 2- ethyls -1,3- hexylene glycol, naphthenic oil, barium sulfate, pitch, rheological agent, molecular sieve, drier,
White carbon and carbon black and methyl diphenylene diisocyanate carry out hybrid process.Wait when in use, close, apply according to special ratios
Glue.This product has super acid resistance, can be used for a long time in high-temperature acid water environment, its performance is without significant change.Especially
The position for having sour water to assemble for a long time suitable for the ash platform, shrinkage joint, stack base of desulfurization Wet chimney uses.During execute-in-place
Two components, which are mixed in proportion, can put into construction.Normal temperature cure, without any additional conditions.
Application number:201410023428.8;Applicant:Nantong Southeast Highway Engineering Co., Ltd.;Denomination of invention:A kind of water
Property polyurethane asphalt material;Summary:A kind of aqueous polyurethane asphalt material, its composition using mass fraction representation as:Drip
Green grass or young crops is 80-90 parts;Epoxy resin is 20-25 parts;90-100 parts of base polyurethane prepolymer for use as;20-30 parts of acrylate;First
10-15 parts of aniline red;12-15 parts of sodium acid carbonate;8-10 parts of styrene-acrylic emulsion;1.5-2.5 parts of imidazoles;Talcum powder 15-20
Part;Powdered whiting is 5-10 parts;5-10 parts of kaolin;5-8 parts of phenol;3-5 parts of diethylenetriamine;Product shearing is strong
Spend 1-2MPa, compression strength 1000-1100MPa;Hardness >=0.4, water-based, environmental protection;Surface drying 1-3h, does solid work 10-15h;Production
Product are of low cost, service life length, not easy to crack, can extensively produce and constantly replace current material.
The outstanding features such as there is pitch raw material inexpensively to enrich, easy construction, water-proof function are strong, waterproof cycle length, for preventing
Water has very long history, is still the important materials of buildings waterproof so far, thus people are using pitch anti-for raw material making
Also carried out more research in terms of water paint, the water-repellent paint prepared by as noted above two parts of documents be using pitch as
What base-material was prepared.But two documents mentioned above when preparing asphalt waterproofing paint all not to its used filler
Such as barium sulfate, talcum powder and kaolin are modified, and when filler not being modified is used to prepare coating be filled in it is various
The shortcomings that obvious is had when in polymer:When surface hydrophilic oleophobic, in polymeric inner bad dispersibility;Second, with high polymer sheet
Body combination force difference, has been only capable of compatibilization.These filler surface hydrophilic oleophobics not being modified, with the compatibility of polymer and
Dispersiveness 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,
Talcum powder and kaolin can cause polymeric material performance drastically to decline when filling, so that product is difficult to be processed and makes
With.Moreover, not being modified in terms of the mildew resistance of coating in document above-mentioned, mould is supported using rear building
Anti- ability is weaker, and for building, for example, some wood surfaces its often residing environment is more moist, mould easily gives birth to
It is long, so that building is subject to brokenly ring, reduce the service life of building.
The content of the invention
According to above-mentioned technological deficiency, the applicant inventor is suitable for polyurethane-modified asphalt paint by screening
The filling capacity of system preferably and good dispersion modified nano calcium carbonate, and add the excellent mould inhibitor of anti-mold effect, then match somebody with somebody
Close using diethylenetriamine base propyl trimethoxy silicane, tackifier, cyclohexanol, citric acid, tin dilaurate, polyoxyethylene polyoxy
The gentle aerosil of propyl alcohol amidogen ether, ensures the weather resistance of product, there is provided a kind of weatherability is strong, anti-mold effect is good, shearing is strong
Spend polyurethane-modified asphalt waterproofing paint of high mould-proof-type and preparation method thereof.
To achieve these goals, the technical solution adopted by the present invention is as follows:
A kind of polyurethane-modified asphalt waterproofing paint of mould-proof-type, is made of the raw material of following parts by weight:
80~90 parts of base polyurethane prepolymer for use as;
90~100 parts of 90# asphalt;
10~20 parts of modified nano calcium carbonate;
5~8 parts of diethylenetriamine base propyl trimethoxy silicane;
3~5 parts of tackifier;
5~9 parts of n-butyl acetate;
3~6 parts of citric acid;
4~6 parts of dibutyl tin laurate;
0.5~2 part of polyoxyethylene polyoxy propyl alcohol amidogen ether;
3~5 parts of aerosil;
4~6 parts of mould inhibitor.
A kind of preparation method of the polyurethane-modified asphalt waterproofing paint of mould-proof-type, includes the following steps:
1), according to parts by weight, 90# asphalt is added in heating reaction kettle, heating is allowed to melt, and keeps the temperature to be
125-130 DEG C, the base polyurethane prepolymer for use as and modified nano calcium carbonate of parts by weight are added, after manually stirring 10~30 minutes, is used
High-speed shearing machine stirs 70~90 minutes, is cooled to 90-100 DEG C, and placing 30-60 minutes makes it fully be swollen;
2), in parts by weight diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate are added sequentially to
Step 1)Reaction kettle in, it is using high-speed shearing machine that the material stirring of addition is uniform;
3) mould inhibitor, aerosil, tackifier and the dibutyl tin laurate of parts by weight, are added into reaction kettle again
Stir evenly;
4) the polyoxyethylene polyoxy propyl alcohol amidogen ether of parts by weight, is then added into reaction kettle;
5) stirring, is then proceeded to 30~60 minutes, up to no powder floats;
6), all materials in reaction kettle are carried out to shearing 90~110 minutes again on high-speed shearing machine, until 90# oil
Pitch is uniformly dispersed with unclassified stores, up to the polyurethane-modified asphalt waterproofing paint product of mould-proof-type.
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 stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR-201, in 90 DEG C of modified 10min;Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
The base polyurethane prepolymer for use as is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerize
Form, the performed polymer with NCO end groups, for molecular weight between 4000-10000, it has good physical property, cohesive force
By force, room temperature moisturecuring.In the prior art polyurethane-modified asphalt waterproofing paint be by two in advance the components that prepare respectively by
Certain proportion hybrid reaction is made, and wherein generally use toluene di-isocyanate(TDI) (TDI) and polyether polyol prepare component A.TDI
Belong to hazardous shipment product, there is the health care belt during the storage of hypertoxic, volatile, reproduction to operating personnel to carry out high risks, and
And in recent years, due to oil price rise, and toluene di-isocyanate(TDI) (TDI) application field is extensive, causes TDI prices to climb all the way
Rise.The present invention uses hard section of the '-diphenylmethane diisocyanate as performed polymer, and polyetherdiol is as soft segment.The MDI of the present invention
Price is relatively low, its molecular weight is also bigger than TDI, and product volatility is small, also much smaller with respect to for TDI to human toxicity, has
Beneficial to industry security protection and the health of operating personnel.Polyetherdiol makees dispersant, polyether polyols in emulsion coating
Alcohol series of products are mainly for the preparation of rigid polyurethane foam.
Above-described mould inhibitor is octyl group-isothiazolinone or 5-Chloro-2-methyl-4-isothiazolin-3-one.It is described
Mould inhibitor octyl group-isothiazolinone be wide spectrum, efficiently, low toxicity, non-oxidative bactericide, to fungi, bacterium, mould and enzyme
Bacterium has good rejection ability, has the ability of very strong killing mould, is added to the sterilization that coating can be improved in coating
Fungicidal properties, makes coating play mould proof effect under moister, special environment.5- chloro-2-methyl -4- isothiazolines -
3- ketone is a kind of fungicide of high activity, to the minimum inhibitory concentrations of many microorganisms all in below 10mg/l, to bacterium, mould
Bacterium, saccharomycete, algae have extremely strong killing and an inhibitory action, and low concentration just with effect.The product security is good, toxicity grading category
Low toxicity, biodegradable, no teratogenesis mutagenesis reaction are more stable under acid and oxidative environment;It is added in coating not
It is only capable of preventing the putrid and deteriorated of coating, improves the antiseptic property of coating, can also makes film that there is the ability for resisting fungus attack.
In the present invention, add through chelating titanate coupling agent, stearic acid, coconut oil and technical white oil is modified receives
Rice calcium carbonate, eliminates the cohesion of nano-calcium carbonate itself, and particle diameter diminishes, and distribution is more equal, contributes to nano-calcium carbonate poly- in height
Dispersed in thing, modified nano-calcium carbonate and pitch bulk junction is strong with joint efforts, further increases the mechanical property of product
Energy.Also, study and find by inventor, modified nano-calcium carbonate oleophilic drainage, therefore modified nano calcium carbonate is added
Being added in the polyurethane-modified asphalt waterproofing paint of the present invention has preferable compatibility and dispersiveness.
In the present invention, diethylenetriamine base propyl trimethoxy silicane is as bridging agent, the ethene of its structural formula one end
Base can be connected with the carboxyl of pitch, the net structure that enhancing pitch is formed with auxiliary material, improve the physical property of pitch, shape
Into preferable chemical affinity, and the other end of silane produces the chemical bond of aquation in the concrete for adding cement, with coagulation
Soil carries out chemical crosslinking and the collaboration of physics mortise and tenon bonds, and pitch and cement are closely coupled as one, region of interest presenceization
Key effect is learned, the waterproof for preparing a waterproof material bridge is erected, irreversible cementation is played after curing, can be made anti-
Water coiled material, its oil resistivity and flexible resistance protrude, and nontoxic, safety and environmental protection, pollution-free, in cement, the process of concrete setting
In can wriggle and penetrate into cement gel and concrete pore, reach be tightly combined, be firm, it is irreversible that as closely linked as flesh and blood bonds
Effect.
Tackifier are an indispensable components of adhesive, it passes through diffusion into the surface or diffusion inside moistening bonding table
Face, improves adhesive strength between glue and adherend material.Tackifier of the present invention are hydrogenated rosin glycerides.
The polyoxyethylene polyoxy propyl alcohol amidogen ether is defoamer.
Dibutyl tin laurate is a kind of organotin additive, can be dissolved in benzene, toluene, carbon tetrachloride, ethyl acetate, chlorine
The organic solvents such as imitative, acetone, petroleum ether and all industrial plasticizer, it is not soluble in water.The higher boiling multipurpose to circulate on the market has
Machine tin catalyst dibutyl tin laurate is handled by special liquefaction, is light yellow under room temperature or colorless oil
Liquid, low temperature, available for igelite auxiliary agent, have excellent lubricity, transparent, weatherability into white crystalline body.It is resistance to
Sulphide staining is preferable.The used as stabilizers in soft transparent product, makees highly-efficient lubricant in hard transparent product, also acts as
The catalyst of acrylic rubber and carboxylic rubber cross-linking reaction, polyurethane foam plastics synthesis and polyester synthesis, room temperature vulcanization
Silicon rubber catalyst.And in the present invention, dibutyl tin laurate is as catalyst, first, the dry of water-repellent paint can be adjusted
Property, second, dibutyl tin laurate has base polyurethane prepolymer for use as very strong catalytic action.
The citric acid is a kind of stabilizer, can increase the stability of solution, colloid, solid, mixture.It may be used also
To slow down reaction, chemical balance is kept, reduces surface tension, prevents light, thermal decomposition or oxygenolysis etc. from acting on.
In the present invention, the n-butyl acetate is used as solvent, there is the liquid of happy fruity smell for water white transparency
Body.N-butyl acetate is a kind of excellent organic solvent, to ethyl cellulose, acetylbutyrylcellulose, polystyrene, methyl-prop
Olefin(e) acid resin, chlorinated rubber and a variety of natural gums have preferable solubility property.And in the present invention, it act as:When
Film forming matter in dissolution of coatings;Second, the bin stability of increase coating;Third, it can assign coating good workability.
Aerosil(It is commonly called as fume colloidal silica)It is through a kind of made from oxyhydrogen flame pyrohydrolysis using chlorosilane
Finely, special amorphous powder body material, its product purity are high, and Average primary particle diameter is about 7 ~ 40nm, and specific surface area 50 ~
380m2/ g, SiO2Content >=99.8%.It is a kind of multi-functional additive, is widely used in coating, can play thickening, touch
Change, delustring etc. act on.In the present invention, aerosil is used as thixotropic agent, because usually in the construction process, due to
The solvent volatilization of coating edge is very fast, causes surface tension uneven, liquid is moved to edge, and network of silica
The movement of liquid can effectively be prevented and form webbing, while also prevent the sagging phenomenon of liquid in the curing process, make painting
Layer is uniformly.Meanwhile aerosil due to can form hydrogen bond and the middle low-shear viscosity in raising system, so as to play thickening
Act on therefore, application of the aerosil in oleaginous system is very extensive.After using thixotropic agent in coating, in construction
High-rate of shear under have compared with low-viscosity, contribute to coating to flow and be easy to construct;Low sheraing speed before construction and afterwards
Have under rate compared with high viscosity, can prevent pigment sedimentation and wet film sagging.In coating system, due to the small particle of aerosil
And high surface energy, they can be adsorbed on the surface of fine paint powders, and form a top layer in powder surface, improve point of powder
Property is dissipated, therefore can be used as dispersion aids.In same coating system, when adding aerosil can be obviously shortened scattered
Between, improve production efficiency.Aerosil can also improve the weatherability of coating, resistance to marring, improve coating and base material it
Between bond strength.Meanwhile aerosil has extremely strong ultraviolet radiation absorption, infrared light reflection characteristic, doses in coating
The middle anti-aging property that can improve coating.
Compared with prior art, the positive effect of the present invention is:
1st, the polyurethane-modified asphalt waterproofing paint film forming matter of mould-proof-type that the present invention produces is due to base polyurethane prepolymer for use as and 90#
Asphalt, mould inhibitor, diethylenetriamine base propyl trimethoxy silicane, modified nano calcium carbonate, tackifier and gas phase dioxy
The materials such as SiClx polymerization after, good chemical crosslinking can be played the role of so that film forming matter at normal temperatures have dryness, surely
It is fixed it is tough and tensile, shrinking percentage is small, adhesive strength is high, shear strength is high, tensile strength is strong and the advantages of good dispersion.Ensure that film has
The characteristics of chemical resistance is strong, high temperature resistant, good weatherability, stain resistance are good, self-cleaning is strong and anti-mold effect is good.
2nd, for the present invention when preparing coating, the mould inhibitor of addition is that octyl group-isothiazolinone or 5- chloro-2-methyls -4- are different
Thiazoline -3- ketone.They all wide spectrum, efficiently, low toxicity, have good rejection ability to fungi, bacterium, mould and enzyme bacterium, have
There is the antimildew disinfectant of very strong killing mould ability, mould inhibitor is added in coating as raw material can improve product coating
Fungus and mildew resistance performance, coating is played mould proof effect under moister, special environment.
3rd, polyurethane-modified asphalt waterproofing paint is by certain by two components prepared respectively in advance in the prior art
Ratio hybrid reaction is made, and wherein generally use toluene di-isocyanate(TDI) (TDI) and polyether polyol prepare component A.TDI belongs to
Hazardous shipment product, have the health care belt during the storage of hypertoxic, volatile, reproduction to operating personnel to carry out high risks, and closely
Nian Lai, 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 uses hard section of the '-diphenylmethane diisocyanate as performed polymer, and polyetherdiol is as soft segment.The MDI price of the present invention
Relatively low, its molecular weight is also bigger than TDI, and product volatility is small, also much smaller with respect to for TDI to human toxicity, is conducive to
Industry security protects and the health of operating personnel.Polyetherdiol makees dispersant, polyether polyol system in emulsion coating
Row product is mainly for the preparation of rigid polyurethane foam.
4th, in the present invention, add modified through chelating titanate coupling agent, stearic acid, coconut oil and technical white oil
Nano-calcium carbonate, eliminates the cohesion of nano-calcium carbonate itself, and particle diameter diminishes, and distribution is more equal, contributes to nano-calcium carbonate in height
Dispersed in polymers, modified nano-calcium carbonate and pitch bulk junction is strong with joint efforts, further increases the mechanics of product
Performance.Also, study and find by inventor, modified nano-calcium carbonate oleophilic drainage, therefore by modified nano calcium carbonate
Being added in the polyurethane-modified asphalt waterproofing paint of the present invention has preferable compatibility and dispersiveness.
5th, in the present invention, diethylenetriamine base propyl trimethoxy silicane is as bridging agent, the second of its structural formula one end
Alkenyl can be connected with the carboxyl of pitch, the net structure that enhancing pitch is formed with auxiliary material, improve the physical property of pitch,
Preferable chemical affinity is formed, and the other end of silane produces the chemical bond of aquation in the concrete for adding cement, with mixing
Solidifying soil carries out chemical crosslinking and the collaboration of physics mortise and tenon bonds, and pitch and cement is closely coupled as one, region of interest exists
Chemical bond, erects the waterproof for preparing a waterproof material bridge, irreversible cementation is played after curing, can be made
Waterproof roll, its oil resistivity and flexible resistance protrude, and nontoxic, safety and environmental protection, pollution-free, in cement, the mistake of concrete setting
Cheng Zhongke, which is wriggled, to be penetrated into cement gel and concrete pore, reach be tightly combined, be firm, it is irreversible that as closely linked as flesh and blood is viscous
Tie effect.
Embodiment
Embodiment 1
A kind of polyurethane-modified asphalt waterproofing paint of mould-proof-type, is made of the raw material of following parts by weight:
80 parts of base polyurethane prepolymer for use as;
90 parts of 90# asphalt;
10 parts of modified nano calcium carbonate;
5 parts of diethylenetriamine base propyl trimethoxy silicane;
3 parts of tackifier;
5 parts of n-butyl acetate;
3 parts of citric acid;
4 parts of dibutyl tin laurate;
0.5 part of polyoxyethylene polyoxy propyl alcohol amidogen ether;
3 parts of aerosil;
Mould inhibitor octyl group -4 parts of isothiazolinone.
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 stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR-201, in 90 DEG C of modified 10min;Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
The tackifier are hydrogenated rosin glycerides.
The preparation method of the polyurethane-modified asphalt waterproofing paint of mould-proof-type, includes the following steps:
1), according to above-mentioned parts by weight, 90# asphalt is added in heating reaction kettle, heating is allowed to melt, and keeps temperature
The base polyurethane prepolymer for use as and modified nano calcium carbonate for for 125 DEG C, adding parts by weight are spent, after manually stirring 30 minutes, with a high speed
Cutter stirs 90 minutes, is cooled to 90 DEG C, and placing 60 minutes makes it fully be swollen;
2), by above-mentioned parts by weight by diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate successively
It is added to step 1)Reaction kettle in, it is using high-speed shearing machine that the material stirring of addition is uniform;
3) mould inhibitor octyl group-isothiazolinone of above-mentioned parts by weight, aerosil, thickening, are added into reaction kettle again
Agent and dibutyl tin laurate stir evenly;
4) the polyoxyethylene polyoxy propyl alcohol amidogen ether of above-mentioned parts by weight, is then added into reaction kettle;
5) stirring, is then proceeded to 30~60 minutes, up to no powder floats;
6), all materials in reaction kettle are carried out to shearing 90~110 minutes again on high-speed shearing machine, until 90# oil
Pitch is uniformly dispersed with unclassified stores, up to the polyurethane-modified asphalt waterproofing paint product of mould-proof-type.
Embodiment 2
A kind of polyurethane-modified asphalt waterproofing paint of mould-proof-type, is made of the raw material of following parts by weight:
85 parts of base polyurethane prepolymer for use as;
95 parts of 90# asphalt;
15 parts of modified nano calcium carbonate;
7 parts of diethylenetriamine base propyl trimethoxy silicane;
4 parts of tackifier;
7 parts of n-butyl acetate;
5 parts of citric acid;
5 parts of dibutyl tin laurate;
1 part of polyoxyethylene polyoxy propyl alcohol amidogen ether;
4 parts of aerosil;
5 parts of mould inhibitor 5-Chloro-2-methyl-4-isothiazolin-3-one.
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 stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min;Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
The tackifier are hydrogenated rosin glycerides.
The preparation method of the polyurethane-modified asphalt waterproofing paint of mould-proof-type, includes the following steps:
1), according to above-mentioned parts by weight, 90# asphalt is added in heating reaction kettle, heating is allowed to melt, and keeps temperature
The base polyurethane prepolymer for use as and modified nano calcium carbonate for for 128 DEG C, adding parts by weight are spent, is manually stirred after twenty minutes, with a high speed
Cutter stirs 80 minutes, is cooled to 95 DEG C, and placing 45 minutes makes it fully be swollen;
2), by above-mentioned parts by weight by diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate successively
It is added to step 1)Reaction kettle in, it is using high-speed shearing machine that the material stirring of addition is uniform;
3) mould inhibitor 5-Chloro-2-methyl-4-isothiazolin-3-one, the gas phase two of above-mentioned parts by weight, are added into reaction kettle again
Silica, tackifier and dibutyl tin laurate stir evenly;
4) the polyoxyethylene polyoxy propyl alcohol amidogen ether of above-mentioned parts by weight, is then added into reaction kettle;
5) stirring, is then proceeded to 30~60 minutes, up to no powder floats;
6), all materials in reaction kettle are carried out to shearing 90~110 minutes again on high-speed shearing machine, until 90# oil
Pitch is uniformly dispersed with unclassified stores, up to the polyurethane-modified asphalt waterproofing paint product of mould-proof-type.
Embodiment 3
A kind of polyurethane-modified asphalt waterproofing paint of mould-proof-type, is made of the raw material of following parts by weight:
90 parts of base polyurethane prepolymer for use as;100 parts of 90# asphalt;20 parts of modified nano calcium carbonate;Diethylenetriamine base propyl group front three
8 parts of oxysilane;5 parts of tackifier;9 parts of n-butyl acetate;6 parts of citric acid;6 parts of dibutyl tin laurate;Polyoxy
2 parts of ethene polyoxy propyl alcohol amidogen ether;5 parts of aerosil.
Mould inhibitor octyl group -6 parts of isothiazolinone.
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 stops heating, add the chelating of nano-calcium carbonate quality 2.0%
Type titanate coupling agent KR- 201, in 90 DEG C of modified 10min;Be separately added into again nano-calcium carbonate quality 2.0% stearic acid,
0.5% coconut oil and 1% technical white oil, are modified 10~15 min respectively again at 90 DEG C, shut down, discharging, obtain modification and receive
Rice calcium carbonate.
The tackifier are hydrogenated rosin glycerides.
The preparation method of the polyurethane-modified asphalt waterproofing paint of mould-proof-type, includes the following steps:
1), according to above-mentioned parts by weight, 90# asphalt is added in heating reaction kettle, heating is allowed to melt, and keeps temperature
The base polyurethane prepolymer for use as and modified nano calcium carbonate for for 130 DEG C, adding parts by weight are spent, is manually stirred after ten minutes, with a high speed
Cutter stirs 70 minutes, is cooled to 100 DEG C, and placing 30 minutes makes it fully be swollen;
2), by above-mentioned parts by weight by diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate successively
It is added to step 1)Reaction kettle in, it is using high-speed shearing machine that the material stirring of addition is uniform;
3) mould inhibitor octyl group-isothiazolinone of above-mentioned parts by weight, aerosil, thickening, are added into reaction kettle again
Agent and dibutyl tin laurate stir evenly;
4) the polyoxyethylene polyoxy propyl alcohol amidogen ether of above-mentioned parts by weight, is then added into reaction kettle;
5) stirring, is then proceeded to 30~60 minutes, up to no powder floats;
6), all materials in reaction kettle are carried out to shearing 90~110 minutes again on high-speed shearing machine, until 90# oil
Pitch is uniformly dispersed with unclassified stores, up to the polyurethane-modified asphalt waterproofing paint product of mould-proof-type.
Modified nano calcium carbonate produced by the invention and unmodified nano-calcium carbonate performance are compared, are 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, polyurethane-modified with mould-proof-type
Asphalt waterproofing paint compatibility is good, and bulk density diminishes, and illustrates that modified nano-calcium carbonate dispersion performance is good, the group of being not easy
It is poly-.
Quality testing
The polyurethane-modified asphalt waterproofing paint of mould-proof-type that the present invention is prepared is detected, detection project and result are as follows
Shown in table 1:
It is above-mentioned that as it can be seen that the properties of coating produced by the present invention meet standard GB/T/T12950-2013, (polyurethane is prevented
Water paint) standard, and also most of performance of coating produced by the present invention is substantially better than national standard, is tested by antibacterial and mouldproof
Experiment, antibacterial and mouldproof effect are good.
Claims (4)
- A kind of 1. polyurethane-modified asphalt waterproofing paint of mould-proof-type, it is characterised in that:It is made of the raw material of following parts by weight:80~90 parts of base polyurethane prepolymer for use as;90~100 parts of 90# asphalt;10~20 parts of modified nano calcium carbonate;5~8 parts of diethylenetriamine base propyl trimethoxy silicane;3~5 parts of tackifier;5~9 parts of n-butyl acetate;3~6 parts of citric acid;4~6 parts of dibutyl tin laurate;0.5~2 part of polyoxyethylene polyoxy propyl alcohol amidogen ether;3~5 parts of aerosil;4~6 parts of mould inhibitor;The mould inhibitor is octyl group-isothiazolinone or 5-Chloro-2-methyl-4-isothiazolin-3-one;The tackifier It is hydrogenated rosin glyceride.
- 2. the polyurethane-modified asphalt waterproofing paint of mould-proof-type according to claim 1, it is characterised 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, mixed at high speed is then added to In machine, 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;The stearic acid of nano-calcium carbonate quality 2.0%, 0.5% coconut oil and 1% work are separately added into again Industry white oil, is modified 10~15 min respectively again at 90 DEG C, shuts down, and discharging, obtains modified nano calcium carbonate.
- 3. the polyurethane-modified asphalt waterproofing paint of mould-proof-type according to claim 1, it is characterised in that:The polyurethane Performed polymer is using '-diphenylmethane diisocyanate, polyetherdiol as primary raw material, is polymerized, with the pre- of NCO end groups Aggressiveness, molecular weight is between 4000-10000.
- A kind of 4. preparation method of the polyurethane-modified asphalt waterproofing paint of mould-proof-type, it is characterised in that:Include the following steps:1), according to parts by weight, 90# asphalt is added in heating reaction kettle, heating is allowed to melt, and keeps the temperature to be 125-130 DEG C, the base polyurethane prepolymer for use as and modified nano calcium carbonate of parts by weight are added, after manually stirring 10~30 minutes, is used High-speed shearing machine stirs 70~90 minutes, is cooled to 90-100 DEG C, and placing 30-60 minutes makes it fully be swollen;2), in parts by weight diethylenetriamine base propyl trimethoxy silicane, citric acid and n-butyl acetate are added sequentially to Step 1)Reaction kettle in, it is using high-speed shearing machine that the material stirring of addition is uniform;3) mould inhibitor, aerosil, tackifier and the dibutyl tin laurate of parts by weight, are added into reaction kettle again Stir evenly;4) the polyoxyethylene polyoxy propyl alcohol amidogen ether of parts by weight, is then added into reaction kettle;5) stirring, is then proceeded to 30~60 minutes, up to no powder floats;6), all materials in reaction kettle are carried out to shearing 90~110 minutes again on high-speed shearing machine, until 90# oil Pitch is uniformly dispersed with unclassified stores, up to the polyurethane-modified asphalt waterproofing paint product of mould-proof-type.
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CN112759990A (en) * | 2020-12-30 | 2021-05-07 | 上海宝庆通用电工有限公司 | Protective coating and preparation method and construction method thereof |
CN115403736A (en) * | 2022-09-09 | 2022-11-29 | 佳化化学科技发展(上海)有限公司 | Anti-aging and mildew-proof silane modified polyurethane sealant and preparation method thereof |
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CN102070910A (en) * | 2010-12-22 | 2011-05-25 | 中国日用化学工业研究院 | Method for nanometer modified coal pitch for roads |
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CN102775900A (en) * | 2012-07-10 | 2012-11-14 | 湖北工程学院 | Water curing asphalt polyurethane composite waterproof coating and preparation method thereof |
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CN1306053A (en) * | 2000-01-20 | 2001-08-01 | 北京市建筑工程研究院 | Non-solvent single-component water-proof asphalt-base polyurethane paint and its preparing process |
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Application publication date: 20180424 |