CN106497420A - A kind of water-repellent paint - Google Patents
A kind of water-repellent paint Download PDFInfo
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- CN106497420A CN106497420A CN201610935161.9A CN201610935161A CN106497420A CN 106497420 A CN106497420 A CN 106497420A CN 201610935161 A CN201610935161 A CN 201610935161A CN 106497420 A CN106497420 A CN 106497420A
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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
- C09D189/00—Coating compositions based on proteins; Coating compositions based on derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H1/00—Macromolecular products derived from proteins
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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
- C09D5/18—Fireproof paints including high temperature resistant 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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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
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- 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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Abstract
The invention discloses a kind of water-repellent paint, film former, solvent and auxiliary agent are sequentially added in plastic tank, 8～10min is to mix homogeneously for stirring, 25～28min is stirred under the rotating speed of 1500r/min, it is allowed to fully dispersed, adding coalescents disperses at a high speed 3～5min that dispersion is obtained, and adds pH adjusting agent to adjust pH value to 7.5～8.8, and mix homogeneously obtains water-repellent paint；The film former, solvent, auxiliary agent, coalescents, pH adjusting agent are calculated as according to ratio of weight and number：48～85 parts of film former, 30～50 parts of solvent, 15～28 parts of auxiliary agent, 8～13 parts of coalescents, 0.3～0.5 part of pH adjusting agent.Modified its tensile strength of film former of the present invention and hardness of film are significantly improved, and can not only be caused the coating that makes that there is under outdoor conditions good weatherability and water proofing property, also be there is the remarkable result of corrosion-resistant and high-temperature resistant, and preparation process is simple.
Description
Technical field
A kind of the present invention relates to building material field, more particularly to water-repellent paint.
Background technology
With the enhancing of people's environmental consciousness, hot product of the water paint into market, the development of China's water-repellent paint
Started from for the 60's with application, early stage, once with various chemical industry leftover bits and pieces as raw material developing products, stops because capability and performance is unstable
Only develop.In the same period, in terms of China is for asphalt configuration water-repellent paint is improved with high polymer, it has been also carried out relatively large
Work.The mid-1960s occur in that chloroprene rubber asphalt waterproofing coating, the initial stage seventies occur in that reclaimed rubber Colophonium
Water-repellent paint, and more successful application is obtained in engineering.As China synthesizes the stable development of Macromolecular materials industry, with each
The water-repellent paint that high-quality synthetic rubber and synthetic resin are developed for raw material is planted, is come into operation in the eighties in succession：As bi-component is gathered
Urethane water-repellent paint, the light water-repellent paint of esters of acrylic acid, cationic chloroprene latex asphalt waterproofing paint and silicone rubber waterproof
Coating etc., rubber asphalt class and synthesis high score subclass water-repellent paint are just occupying increasing in China's waterproofing work application
Proportion.Based on asphalt, the technological approaches that are modified with high polymer, in the longer history of China, its raw material comes
Extensively, cost is relatively low, it is adaptable to measure the general waterproofing work of big face light in source；The coating that is made based on synthesis macromolecular material,
Performance is more excellent, but price is higher；Due to building deformation, body of wall cracking reduces waterproof effect so as to cause coating surface to ftracture.Cause
This, the use of Colophonium class water-repellent paint is fewer and feweri, and polyurethane water-proof paint is due to excellent elasticity, durability, preventing
Water layer is light, working drawing review is convenient, receives many advantages, such as component can easily be accommodated, can be used for building different parts and good integrity
To attention.
At present, compared with developed countries, China's polyurethane water-proof paint overall performance is poor, and quality is also unstable.Poly- ammonia
Ester water-repellent paint divides one-component and double-component again.Mono-composition poyurethane water-proof paint easily because of air in humidity not enough cause
Hardening time is longer, schedule delays.And often using in double-composition polyurethane waterproof paint has carcinogen suspected of to human body
MOCA（3,3- bis- chloro- 4,4- diaminodiphenyl-methanes, are commonly called as mocha）As firming agent, and have containing substantial amounts of volatility
Machine solvent（Such as toluene, dimethylbenzene and coumarone indene resin etc.）, bicomponent polyurethane coating is complicated due to material component, during use
Limited by field condition again, difficult quality is stable；Though aqueous polyurethane coating meets development trend, because introducing parent in molecule
Aqueouss group, the resistance to water of its film, chemical resistance are poor, are particularly unsuitable for long-term Soaking environment.With environmental protection concept
Strengthen the appearance with environmental regulation, the GB/T 19,250 2013 of the enforcement on the 1st of August in 2014《Polyurethane water-proof paint》Middle increase
Limits of harmful substances, now direction of the polyurethane water-proof paint just towards environmental protection, health develop.Therefore, develop high performance
The low VOC waterproof coatings of one pack system or the modified water-proof coating with water-tolerant environment-protecting asepsis, remain people's research
Important topic.
Present water-repellent paint, the weatherability and heat-resisting Journal of Sex Research for being specifically designed for water-repellent paint can be found everywhere, and utilize now
Raw material of the nano material as waterproof material, can improve the weatherability and water resistance of coating, such as Chinese patent CN
Disclosed in 105254234A《A kind of double-component aqueous Nano waterproof paint and preparation method thereof》, but cost is high, using double
Component is complicated due to material component, is limited by field condition during use again, and difficult quality is stable；Also have using change pigment and fill out
The formula of material is improving the heat resistance of the coating being prepared into, but its technological process for preparing is complicated, it is desirable to higher.
Content of the invention
It is an object of the invention to：For above-mentioned problem, there is provided a kind of water-repellent paint, by entering to film former
Row is modified also to be significantly improved as the important source material for preparing the application coating, its tensile strength and hardness of film, can not only make
The coating that must be made has good weatherability and water proofing property under outdoor conditions, and also there is the notable effect of corrosion-resistant and high-temperature resistant
Really, and preparation process is simple.
The present invention is achieved by the following technical solutions：
A kind of water-repellent paint, including film former, solvent, auxiliary agent, coalescents and pH adjusting agent, by film former, solvent and auxiliary agent
Sequentially add in plastic tank, 8～10min is to mix homogeneously for stirring, stirs 25～28min, be allowed under the rotating speed of 1500r/min
Fully dispersed, add coalescents and disperse at a high speed 3～5min to be obtained dispersion, and add pH adjusting agent adjust pH value to
7.5～8.8, mix homogeneously obtains water-repellent paint；The film former, solvent, auxiliary agent, coalescents, pH adjusting agent are according to weight
Portion rate is calculated as：48～85 parts of film former, 30～50 parts of solvent, 15～28 parts of auxiliary agent, 8～13 parts of coalescents, pH adjusting agent
0.3～0.5 part；The film former is modified Casein resin, and the preparation method of the film former is：It is 5.5～8 by mass ratio：3
～4.6 casein liquid and epoxy resin mixing, are subsequently adding water, soak 20min under the conditions of 18 DEG C～25 DEG C, add and press quality
Compare butyl glycol ether：Hydroxyethyl methylacrylate=1～2:The mixed solvent of 1.5～2.7 compositions is dissolved to mixture, is put
In the four-hole bottle equipped with agitator, constant pressure funnel, condensing tube and nitrogen conduit, using the method for polymerisation in solution, it is slowly stirred
70～90 DEG C are warming up to, anhydride is added, when being to slowly warm up to anhydride under nitrogen protection and being completely dissolved, warming while stirring is arrived
250 DEG C, insulation reaction 2.5h is cooled to 200 DEG C, adds polyester resin in mass ratio：Isocyanates：Resina persicae：Fructus Cucumidis sativi is extracted
Liquid：Trimethylhexamethylenediamine=1.5～3：2：5：2：1, keeping temperature is 150-200 DEG C, and 1～2h of stirring reaction is cooled to
Room temperature obtains modified Casein resin.
Used as the preferred technical solution of the present invention, the coalescents are propylene glycol monomethyl ether, butyl glycol ether, diglycol monotertiary
Monobutyl ether acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monomethyl ether acetate, Lauryl Alcohol
At least two mixture in ester.
Used as the preferred technical solution of the present invention, pH adjusting agent is that sodium hydroxide solution, Ammonia, triethylamine are molten
One kind in liquid.
Used as the preferred technical solution of the present invention, in the preparation method of film former, casein liquid is that casein is added to which is heavy
In the deionized water of 8～15 times of amount, stir, 3～5min of ultrasound adds the ammonium hydroxide of casein weight 0.2～0.3
It is 8～9,30～45min of stirring reaction that solution adjusts pH value, obtains casein liquid.
Further, the weight for adding water described in the preparation method of film former is casein liquid and epoxy resin gross weight
0.12～0.25.
Further, the speed for stirring described in the preparation method of film former is 110～120r/min.
As the preferred technical solution of the present invention, the solvent be the blending emulsion of propyl benzene emulsion and hydroxyl butylbenzene, acetic acid,
One kind or at least two mixture in formic acid, ethylene glycol, acrylic acid ester emulsion.
As the preferred technical solution of the present invention, the auxiliary agent be plasticizer, stabilizer, filler, defoamer, zinc octoate,
Tin dilaurate acid dibutyl tin, their mass ratio is 3～5:0.2:6～8:0.3:0.7:0.2.
Further, the plasticizer be butyl stearate, dioctyl phthalate, blown castor oil, in oleum lini
One in or more than at least two mixture.
As the preferred technical solution of the present invention, described filler be asbestos fibre, Pulvis Talci, white carbon, feldspar in powder and
The mixture of far infrared ceramic powder, their mass ratio are 2～4：1：2～3：1.5：1～3.
Further, the defoamer is polyoxyethylene polyoxypropylene glycerin ether or polydimethylsiloxane.
Further, the stabilizer is sodium hydroxyethlcellulose or polyvinyl alcohol.
The raw material being related in this application can be obtained in buying on the market with equipment.
Originally compared with prior art, the device have the advantages that being：
1st, the present invention using being successively modified casein and epoxy resin using chemical modification, make by the modified Casein resin for obtaining
For the film former in the application water-repellent paint raw material, under alkaline environment, epoxide number increases, containing reaction in epoxy molecule
The very high epoxy radicals of activity, the active group are reacted with the hydrophilic group such as amino, carboxyl and hydroxyl in casein, improve and change
Property film former resistance to water and wet-rub resistance, by adding polyester resin, isocyanates, Resina persicae and cucumber extract, block cheese
The intermediate polarity group of plain strand forms hydrogen bond, so as to improve the combination properties such as extensibility and the flexible resistance of film former, polyester tree
The addition of fat, isocyanates, Resina persicae and cucumber extract not only acts as the addition for reducing epoxy resin and casein, reduces into
This, also acting as reduces the stringiness of whole coating, while ensureing that performance of the coating in bonding is best；Anhydride is added, except carrying
High viscosity, also so that shortening the drying time of coating and resistance to water raising；Interaction between casein and epoxy molecule,
The product tensile property of modified Casein resin is improve, elongation at break increases, and adds trimethylhexamethylenediamine, to epoxy
Resin and other resins play thickening solidification, and the corrosion-resistant and adhesive property of raising is good, toughness is strong.Preparation method is by changing
Reaction is learned, the temperature of reaction is controlled, acid-base environment is adjusted, it is ensured that modified Casein resin is reacted under conditions of excellent, it is to avoid
Reacted the time that is slow, increasing preparation or reacted too fast and modification and overdo and the problem of caking occurred, epoxy resin introduced cheese
The hydrophilic of modified casein resin in element, is reduced, the water resistance of film forming is improve, while improving the thermostability of film
Energy.
2nd, the solvent that selects in the present invention is specific to the film former in the application（Modified Casein resin）Design, energy
Enough quickly film former is dissolved, whole process is not ground, and is directly added in blender and mixs homogeneously with other batch mixings, this Shen
The solvent that please be adopted meets requirement of the water-repellent paint to extension at break and low temperature flexibility, contained hydroxy functional group and film former
And other molecules react, the intensity and resistance to water of material and the bonding force with concrete etc. can be significantly improved.
3rd, the various performances of the coating perfect of the present invention that auxiliary agent used in this application can be overall, select for the application
Film forming agent aid and pigment type, special from the auxiliary agent being engaged, strengthen the various performances of coating of the present invention, for example, select
Stabilizer, reaction speed, too fast just slow down response speed, keep chemical equilibrium, reduce surface tension, prevent light, heat point
The effect such as solution or oxidation Decomposition；From defoamer can suppress foam produce material, it is together inhaled with liquid foamer
Invest on bubble, reduce surface tension, vacuolar membrane is thinning, causes breakage, can prevent foaming phenomena；From pH adjusting agent, protect
The viscosity for demonstrate,proving whole coating reaches most preferably, and 8.5 viscosity of regulated value is most strong.
4th, water-repellent paint of the invention has unique water proofing property, high resiliency and globality, and film resists continuously without any seam
Seepage, good to building various base material caking property, it is difficult to peel off, and antiseptic effect is excellent, antiageing effect is good, ornamental strong,
The advantages of good endurance.
Specific embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.This specification（Including any accessory claim, summary）
Disclosed in any feature, unless specifically stated otherwise, can equivalent by other or with similar purpose alternative features replaced.
I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics.
Embodiment 1
A kind of water-repellent paint, in terms of kg, raw material is
Film former：Modified Casein resin 75kg
Solvent：The blending emulsion 35kg of propyl benzene emulsion and hydroxyl butylbenzene
Coalescents：Propylene glycol monomethyl ether 5kg, butyl glycol ether 5kg, ethylene glycol monomethyl ether acetate 2kg
PH adjusting agent：Triethylamine solution 0.5kg
Auxiliary agent is plasticizer, stabilizer, filler, defoamer, zinc octoate, wherein tin dilaurate acid dibutyl tin, plasticizer：Hard Fat
Acid butyl ester 5kg, blown castor oil 3kg；Stabilizer：Polyvinyl alcohol 0.4kg；Filler：Asbestos fibre 3kg, Pulvis Talci 1kg, Linesless charcoal
Black 2.5kg, feldspar in powder 1.5kg and far infrared ceramic powder 3kg；Defoamer：Polydimethylsiloxane 0.6kg；Zinc octoate
1.4kg；Tin dilaurate acid dibutyl tin：0.4kg.
The preparation method of the present embodiment is：
(1) take in the deionized water that appropriate casein is added to 10 times of its weight, stir, ultrasonic 5min adds cheese
It is 8.5 that the Ammonia of plain weight 0.3 adjusts pH value, and stirring reaction 40min obtains casein liquid.
(2) by mass ratio be 3:2 casein liquid 45kg and epoxy resin 30kg mixing, is subsequently adding water 15kg, at 22 DEG C
Under the conditions of soak 20min, add butyl glycol ether in mass ratio：Hydroxyethyl methylacrylate=1:The mixed solvent 2kg of 2 compositions
Mixture is dissolved, is placed in the four-hole bottle equipped with agitator, constant pressure funnel, condensing tube and nitrogen conduit, using solution
The method of polymerization, is slowly stirred and is warming up to 75 DEG C, adds anhydride 0.5kg, is to slowly warm up to anhydride under nitrogen protection completely molten
Xie Shi, warming while stirring to 250 DEG C, insulation reaction 2.5h are cooled to 200 DEG C, add polyester resin in mass ratio：Isocyanide
Acid esters：Resina persicae：Cucumber extract：Trimethylhexamethylenediamine=2：2：5：2：1 mixture 18kg, keeping temperature is 180
DEG C, stirring reaction 1h is cooled to room temperature and obtains modified Casein resin；
（3）Film former, solvent and auxiliary agent are sequentially added in plastic tank, 10min is to mix homogeneously for stirring, 1500r/min's
25min is stirred under rotating speed, is allowed to fully dispersed, added coalescents and disperse at a high speed 5min that dispersion is obtained, and add pH
Regulator adjusts pH value to 8.0, and mix homogeneously obtains water-repellent paint.
Embodiment 2
A kind of water-repellent paint, in terms of kg, raw material is
Film former：Modified Casein resin 80kg
Solvent：The blending emulsion 40kg of propyl benzene emulsion and hydroxyl butylbenzene
PH adjusting agent：Triethylamine solution 0.4kg
Coalescents：Diethylene glycol monobutyl ether acetate 6kg, ethylene glycol monomethyl ether acetate 3kg
Auxiliary agent is plasticizer, stabilizer, filler, defoamer, zinc octoate, wherein tin dilaurate acid dibutyl tin, plasticizer：Caulis et Folium Lini
Oily 3kg, blown castor oil 2kg；Stabilizer：Polyvinyl alcohol 0.3kg fillers：Asbestos fibre 2kg, Pulvis Talci 1kg, white carbon 2kg,
Feldspar in powder 1.5kg and far infrared ceramic powder 2kg；Defoamer：Polydimethylsiloxane 0.45kg；Zinc octoate 1kg；Tin dilaurate
Sour dibutyl tin：0.3kg.
The preparation method of the present embodiment is：
（1）Take in the deionized water that appropriate casein is added to 15 times of its weight, stir, ultrasonic 3min adds cheese
It is 8 that the Ammonia of plain weight 0.2 adjusts pH value, and stirring reaction 45min obtains casein liquid.
（2）It is 7 by mass ratio:3 casein liquid 56kg and epoxy resin 24kg mixing, is subsequently adding water 16kg, at 18 DEG C
Under the conditions of soak 20min, add butyl glycol ether in mass ratio：Hydroxyethyl methylacrylate=1:The mixed solvent 3kg of 1 composition
Mixture is dissolved, is placed in the four-hole bottle equipped with agitator, constant pressure funnel, condensing tube and nitrogen conduit, using solution
The method of polymerization, is slowly stirred and is warming up to 80 DEG C, adds anhydride 0.5kg, is to slowly warm up to anhydride under nitrogen protection completely molten
Xie Shi, warming while stirring to 250 DEG C, insulation reaction 2.5h are cooled to 200 DEG C, add polyester resin in mass ratio：Isocyanide
Acid esters：Resina persicae：Cucumber extract：Trimethylhexamethylenediamine=3：2：5：2：1 mixture 15kg, keeping temperature is 180
DEG C, stirring reaction 1h is cooled to room temperature and obtains modified Casein resin；
（3）Film former, solvent and auxiliary agent are sequentially added in plastic tank, 10min is to mix homogeneously for stirring, 1500r/min's
28min is stirred under rotating speed, is allowed to fully dispersed, added coalescents and disperse at a high speed 3min that dispersion is obtained, and add pH
Regulator adjusts pH value to 8.8, and mix homogeneously obtains water-repellent paint.
Embodiment 3
A kind of water-repellent paint, in terms of kg, raw material is
Film former：Modified Casein resin 60kg
Solvent：The blending emulsion 30kg of propyl benzene emulsion and hydroxyl butylbenzene
PH adjusting agent：Triethylamine solution 0.3kg
Coalescents：Ethylene glycol monomethyl ether acetate 5kg, propylene glycol monomethyl ether 6kg
Auxiliary agent is plasticizer, stabilizer, filler, defoamer, zinc octoate, wherein tin dilaurate acid dibutyl tin, plasticizer：Adjacent benzene
Diformazan dioctyl phthalate 6kg；Stabilizer：Polyvinyl alcohol 0.4kg；Filler：Asbestos fibre 4kg, Pulvis Talci 2kg, white carbon 4kg, potassium
Feldspar powder 3kg and far infrared ceramic powder 4kg；Defoamer：Polydimethylsiloxane 0.6kg；Zinc octoate 1.4kg；Tin dilaurate acid
Dibutyl tin：0.4kg.
The preparation method of the present embodiment is：
（1）Take in the deionized water that appropriate casein is added to 15 times of its weight, stir, ultrasonic 3min adds cheese
It is 8 that the Ammonia of plain weight 0.2 adjusts pH value, and stirring reaction 45min obtains casein liquid.
（2）It is 2 by mass ratio:1 casein liquid 40kg and epoxy resin 20kg mixing, is subsequently adding water 15kg, at 18 DEG C
Under the conditions of soak 20min, add butyl glycol ether in mass ratio：Hydroxyethyl methylacrylate=4:The mixed solvent of 3 compositions
2.5kg is dissolved to mixture, is placed in the four-hole bottle equipped with agitator, constant pressure funnel, condensing tube and nitrogen conduit, is adopted
The method of polymerisation in solution, is slowly stirred and is warming up to 90 DEG C, adds anhydride 0.5kg, is to slowly warm up to anhydride under nitrogen protection complete
During CL, warming while stirring to 250 DEG C, insulation reaction 2.5h are cooled to 200 DEG C, add polyester resin in mass ratio：
Isocyanates：Resina persicae：Cucumber extract：Trimethylhexamethylenediamine=2：2：5：2：1 mixture 13kg, keeping temperature is
180 DEG C, stirring reaction 1h is cooled to room temperature and obtains modified Casein resin；
（3）Film former, solvent and auxiliary agent are sequentially added in plastic tank, stirring 8min to mix homogeneously, turning in 1500r/min
The lower stirring 26min of speed, is allowed to fully dispersed, adds coalescents and disperses at a high speed 5min that dispersion is obtained, and adds pH to adjust
Section agent adjusts pH value to 7.5, and mix homogeneously obtains water-repellent paint.
The physical property of prepared water-repellent paint in embodiment 1-3 is tested, appropriate embodiment 1-3 is taken and is prepared
The water-repellent paint for obtaining solidifies at normal temperatures, produces film, it is ensured that the material after 1.5 ± 0.2mm of coating thickness solidifications is according in
The properties of magnificent people's republic's building material industry standard Indexs measure coating, testing result show the items of the coating routinely
Energy index complies with the national standard requirements.Performance test results are as shown in table 1：
The physical properties testing result of 1 water-repellent paint of table
As seen from the above table, the water-repellent paint that embodiment of the present invention 1-3 is prepared has unique water proofing property, high resiliency and entirety
Property, continuously without any seam, anti-leakage is good to building various base material caking property for film, is difficult to peel off, and antiseptic effect is excellent
Different, antiageing effect is good, ornamental strong, and coating adhesion is strong, and density is high, and good weatherability is preferable water-repellent paint.
Claims (10)
1. a kind of water-repellent paint, including film former, solvent, auxiliary agent, coalescents, pH adjusting agent, it is characterised in that by film forming
Agent, solvent and auxiliary agent are sequentially added in plastic tank, and 8～10min is to mix homogeneously for stirring, stirs under the rotating speed of 1500r/min
25～28min, is allowed to fully dispersed, adds coalescents and disperses at a high speed 3～5min that dispersion is obtained, and adds pH regulator
Agent adjusts pH value to 7.5～8.8, and mix homogeneously obtains water-repellent paint；The film former, solvent, auxiliary agent, coalescents, pH are adjusted
Section agent is calculated as according to ratio of weight and number：48～85 parts of film former, 30～50 parts of solvent, 15～28 parts of auxiliary agent, coalescents 8～13
Part, 0.3～0.5 part of pH adjusting agent；The film former is modified Casein resin, and the preparation method of the film former is：By quality
Than for 5.5～8：3～4.6 casein liquid and epoxy resin mixing, are subsequently adding water, soak under the conditions of 18 DEG C～25 DEG C
20min, adds butyl glycol ether in mass ratio：Hydroxyethyl methylacrylate=1～2:The mixed solvent of 1.5～2.7 compositions is to mixed
Compound is dissolved, and is placed in the four-hole bottle equipped with agitator, constant pressure funnel, condensing tube and nitrogen conduit, using polymerisation in solution
Method, be slowly stirred and be warming up to 70～90 DEG C, add anhydride, when being to slowly warm up to anhydride under nitrogen protection and being completely dissolved,
Warming while stirring to 250 DEG C, insulation reaction 2.5h are cooled to 200 DEG C, add polyester resin in mass ratio：Isocyanates：
Resina persicae：Cucumber extract：Trimethylhexamethylenediamine=1.5～3：2：5：2：1, keeping temperature is 150-200 DEG C, and stirring is anti-
1～2h is answered, room temperature is cooled to and is obtained modified Casein resin.
2. a kind of water-repellent paint according to claim 1, it is characterised in that the coalescents are propylene glycol monomethyl ether, second two
Alcohol butyl ether, diethylene glycol monobutyl ether acetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether
At least two mixture in acetate, Lauryl Alcohol ester.
3. a kind of water-repellent paint according to claim 1, it is characterised in that pH adjusting agent is sodium hydroxide solution, hydroxide
One kind in ammonium salt solution, triethylamine solution.
4. a kind of water-repellent paint according to claim 1, it is characterised in that in the preparation method of film former casein liquid be will be dry
Casein is added in the deionized water of 8～15 times of its weight, is stirred, 3～5min of ultrasound, adds casein weight 0.2
It is 8～9,30～45min of stirring reaction that～0.3 Ammonia adjusts pH value, obtains casein liquid.
5. a kind of water-repellent paint according to claim 1, it is characterised in that add water described in the preparation method of film former
Weight is the 0.12～0.25 of casein liquid and epoxy resin gross weight.
6. a kind of water-repellent paint according to claim 1, it is characterised in that the speed stirred described in the preparation method of film former
Spend for 110～120r/min.
7. a kind of water-repellent paint according to claim 1, it is characterised in that the solvent is propyl benzene emulsion and Carboxy
Blending emulsion.
8. a kind of water-repellent paint according to claim 1, it is characterised in that the auxiliary agent be plasticizer, stabilizer, filler,
Defoamer, zinc octoate, tin dilaurate acid dibutyl tin, their mass ratio is 3～5:0.2:6～8:0.3:0.7:0.2.
9. a kind of water-repellent paint according to claim 8, it is characterised in that the plasticizer is butyl stearate, adjacent benzene two
In in formic acid dioctyl ester, blown castor oil, oleum lini one or more than at least two mixture.
10. a kind of water-repellent paint according to claim 8, it is characterised in that described filler is asbestos fibre, Pulvis Talci, white
The mixture of white carbon black, feldspar in powder and far infrared ceramic powder, their mass ratio are 2～4：1：2～3：1.5：1～3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610935161.9A CN106497420A (en) | 2016-11-01 | 2016-11-01 | A kind of water-repellent paint |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610935161.9A CN106497420A (en) | 2016-11-01 | 2016-11-01 | A kind of water-repellent paint |
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| CN106497420A true CN106497420A (en) | 2017-03-15 |
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| CN201610935161.9A Pending CN106497420A (en) | 2016-11-01 | 2016-11-01 | A kind of water-repellent paint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107011743A (en) * | 2017-03-30 | 2017-08-04 | 天长市天达纸箱纸品厂 | A kind of preparation method of corrugated board water-repellent paint |
| CN109054658A (en) * | 2018-08-18 | 2018-12-21 | 泾县狸宣文化用品有限公司 | A kind of preparation method of the high viscous adhesive of environmental protection |
| CN109161376A (en) * | 2018-08-18 | 2019-01-08 | 安徽古耐家居有限公司 | A kind of preparation method of green wallpaper adhesive |
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| CN104099022A (en) * | 2013-04-12 | 2014-10-15 | 北京世纪洪雨科技有限公司 | Sprayed quick-setting liquid rubber waterproof coating and preparation method thereof |
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| CN107011743A (en) * | 2017-03-30 | 2017-08-04 | 天长市天达纸箱纸品厂 | A kind of preparation method of corrugated board water-repellent paint |
| CN109054658A (en) * | 2018-08-18 | 2018-12-21 | 泾县狸宣文化用品有限公司 | A kind of preparation method of the high viscous adhesive of environmental protection |
| CN109161376A (en) * | 2018-08-18 | 2019-01-08 | 安徽古耐家居有限公司 | A kind of preparation method of green wallpaper adhesive |
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Application publication date: 20170315 |