CN109370294A - A kind of water paint water-absorbing resins microballoon and preparation method thereof - Google Patents

A kind of water paint water-absorbing resins microballoon and preparation method thereof Download PDF

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Publication number
CN109370294A
CN109370294A CN201811543303.2A CN201811543303A CN109370294A CN 109370294 A CN109370294 A CN 109370294A CN 201811543303 A CN201811543303 A CN 201811543303A CN 109370294 A CN109370294 A CN 109370294A
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water
agent
parts
absorbing resins
acrylic acid
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陈晓东
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Zhejiang Oulude Traffic Technology Co Ltd
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Zhejiang Oulude Traffic Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/04—Acids; Metal salts or ammonium salts thereof
    • C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/18—In situ polymerisation with all reactants being present in the same phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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    • 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
    • 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
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • 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
    • 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
    • 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
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
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    • 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
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • 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
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/18—Spheres

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Abstract

The present invention relates to a kind of water paint water-absorbing resins microballoons and preparation method thereof, using hexamethylene as solvent, using nano-stephanoporate silicon dioxide, comonomer, dispersing agent, crosslinking agent and initiator as main reactant, it is formed using inverse suspension polymerization, comonomer is acrylic acid and acrylamide and vinyl pyrrolidone.The film-forming resin of the microballoon and coating has good binding force, can be by the water adsorption of coating internal layer, and expansion rate is low, can be made into μm grade or even smaller partial size.It is improved using the coating rate of drying of the water-absorbing resins microballoon.Meanwhile by specific preparation process, the water-absorbing resins microballoon in the presence of porous silica in-situ polymerization and be prepared so that also being further increased for wearability after water paint.

Description

A kind of water paint water-absorbing resins microballoon and preparation method thereof
Technical field
The present invention relates to a kind of aqueous pavement marker gage mark coating water-absorbing resins microballoons.
Background technique
In order to influence traffic as few as possible, the drying time needs of pavement marker gage mark coating are as short as possible, but pass The water paint of system, is applied to after road surface, surface layer quick solidifying, and after the solidification of surface layer, the moisture of internal layer is difficult to volatilize, very To muchly having rested in coating, cause film curing incomplete, the degradations such as wearability.
CN100549113C protects a kind of water-based road guide line coating, including water, filler, pigment and auxiliary agent, each component weight Measure number be water 100-300 parts, 200-500 parts of acrylic emulsion, 90-180 parts of silica, 30-60 parts of mica powder, pigment 180-300 parts, 15-60 parts of surfactant, 10-20 parts of adhesive, 20-30 parts of thixotropic agent, 10-15 parts of thickener etc..It is viscous 14 technical indicators such as degree, density, wear-resisting meet national sector standard JT/T280-2004 " pavement marking paint " standard rule It is fixed.
CN103627276B protects a kind of aqueous cold cut pavement marking paint, the following components including parts by weight: water 4.87 parts, 0.03 part of anticorrosion and bactericidal agent, 1.5 parts of waterborne wax emulsion, 3 parts of ethyl alcohol, 0.4 part of aqueous dispersion, aqueous acrylamide yogurt 27 parts of liquid, 1-2 parts of organobentonite, 1 part of aqueous drier, 5-8 parts of pigment, 15 parts of 40-60 mesh bead, 80-120 mesh glass 30 parts of pearl, 8.2 parts of white alundum powder, 3 parts of coalescing agent.The advantages of coating: convenient and quick construction, environment friendly and pollution-free, graticule is thick Degree is ideal, rate of drying is fast and long service life, is the ideal product for substituting solvent gage mark coating and heating gage mark coating.
CN105295674B protects a kind of water-based road guide line paint, and the recipe ingredient of the slurry by weight, is divided into 1 component 20-40 parts；20-40 parts of B component；150-300 parts of component C；Wherein component A includes 10-15 parts of dispersing agent；3-6 parts of wetting agent；Disappear 3-6 parts of infusion；6-7 parts of thickener；8-10 parts of levelling agent；782-822 parts of deionized water；138-178 parts of curing agent；B component packet Include waterborne polyester；Component C includes 300-390 parts of premix powders；130-160 parts of titanium dioxide；210-270 parts of silica flour；Bead 260-310 parts；130-12 parts of glass-fiber-fabric.The road mark paint has environmental protection characteristic, and construction overcomes normal temperature type pollution environment, Service life is short, heat molten type construction complexity, low efficiency, the deficiency of recoatability difference, and reflecting at night is good, and has dry quick Feature.
CN107573838B protects a kind of room temperature waterborne road line paint, by house oil modified aqueous polyurethane, epoxy acrylic Ester graft modified aqueous polyurethane, bisphenol A type epoxy resin, aqueous acrylic emulsion, aqueous polyhydroxy fluorocarbon resin, aqueous silicon Sour lithium, fatty alcohol polyoxyethylene ether, calcium methyl siliconate, nano-titanium dioxide, nanometer calcium carbonate, calcined kaolin, calcium chloride, nothing Machine asbestos fibre, macromolecular fibre, sodium methanedisulfonate sodium, hexamethyldisiloxane, tripropylene glycol butyl ether, propylene glycol, ethylene glycol Butyl ether, aqueous polyamide wax, organobentonite, aluminum-zirconium coupling agent, silane coupling agent, tetrahydro perfluoro decyl trichlorosilane, poly- second Alkene pyrrolidone, vinyl fatty acid ester, photoinitiator, photosensitive dilution activated monomer are prepared.Gage mark coating film forming solidification Good, the infiltration adhesion with road surface of property, water resistance, wearability, mechanical strength and antifouling performance easy to clean are good.
Also the prior art improves the rate of drying of water paint by addition porous silica.Such as DOW Chemical Company discloses a kind of technique for preparing porous spherical silica polymer microballon, including following step in CN87106208A It is rapid: will (a) to be dispersed into a liquid medium containing a kind of polymerizable siloxane compound and a kind of reaction mixture of gelling agent Many drops, in the liquid medium, the mixture of polymerizable reactant is locating for unmixing, described dispersion Condition is not promote the polymerization or significant coalescence of the reaction mixture drop dispersed；(b) by the suspension of reaction mixture drop Liquid is placed in the polymerization that can promote reaction mixture, but not under conditions of a large amount of coalescences or further dispersion of drop.It is prepared Silica bead be a kind of polymerizable Si oxide reactant and a kind of gelling agent polymerizate.The range of particle diameter Can be from 0.01-5.0mm, pore diameter range is from 10-500nm.Such porous silica is added in water paint to a certain degree On can improve rate of drying, but have the defects that durability is not high.
As it can be seen that wearability is the performance that the prior art is pursued all the time for the rate of drying of coating.The Shen of the application It asks someone creatively to develop a kind of water-absorbing resins microballoon, the film-forming resin of the microballoon and coating has good binding force, energy Enough water adsorptions by coating internal layer, and expansion rate is low, can be made into μm grade or even smaller partial size.Use the water imbibition The coating rate of drying of resin microsphere improves.Meanwhile by specific preparation process, the water-absorbing resins microballoon is in porous dioxy In-situ polymerization in the presence of SiClx and be prepared so that also being further increased for wearability after water paint.
Summary of the invention
The present invention provides a kind of water paint water-absorbing resins microballoon and preparation method thereof, is used in water paint The rate of drying of coating can be increased substantially, while there is excellent wearability.
A kind of preparation method of water paint water-absorbing resins microballoon, using hexamethylene as solvent, with nanoporous dioxy SiClx, comonomer, dispersing agent, crosslinking agent and initiator are main reactant, are formed using inverse suspension polymerization, comonomer For acrylic acid and acrylamide and vinyl pyrrolidone, right in acrylic acid is 50-80%, preparation step are as follows:
(1) acrylic acid after purification is soluble in water, it is placed in ice-water bath and keeps cooling, stir and be slowly added dropwise thereto NaOH solution, be made into right 50-80% acrylic acid solution, be cooled to room temperature, be added into the acrylic acid solution after neutralization Crosslinking agent, initiator, acrylamide and vinyl pyrrolidone, being sufficiently stirred makes to dissolve, and obtains mixed liquor；
(2) nano-stephanoporate silicon dioxide and dispersing agent are added in hexamethylene, stirring sufficiently, is warming up to 40-50 DEG C, keeps Then the mixed liquor that (1) prepares is added dropwise in the three-necked flask by nitrogen atmosphere, drop, which finishes, is warming up to 60-80 DEG C, reacts 2-4h, It filters, is washed with methanol after reaction, be subsequently placed in drying in baking oven, be dried in vacuo after slight grinding, obtain white powder Shape super absorbent resin microballoon.
Preferably, crosslinking agent N, N- methylene-bisacrylamide；Initiator be azodiisobutyronitrile or persulfuric acid salt, Such as potassium peroxydisulfate, ammonium persulfate.
Preferably, dispersing agent span-60, span-40, span-80.
Preferably, the dosage of reactant is based on parts by weight acrylic acid 10-30, acrylamide 5-10, vinyl pyrrole Alkanone 5-10, nano-stephanoporate silicon dioxide 1-2, dispersing agent 1-2, crosslinking agent 0.05-0.2, initiator 0.02-0.1；Preferably Acrylic acid 10-15, acrylamide 5-8, vinyl pyrrolidone 5-8, nano-stephanoporate silicon dioxide 1-2, dispersing agent 1-2, crosslinking Agent 0.05-0.1, initiator 0.05-0.1.
Preferably, the partial size of nano-stephanoporate silicon dioxide is 100-200nm.
The present invention also provides a kind of preparation methods of waterborne road line paint, include the following steps:
It stirs to uniformly mixed aqueous acrylic emulsion, defoaming agent, titanium dioxide mixed low speed to obtain mixed liquor；
It is added above-mentioned water-absorbing resins microballoon into above-mentioned mixed liquor, wetting agent, thickener, coalescing agent stirs evenly, After filtering, filtrate is stood, obtains waterborne road line paint.
Preferably, containing 20-30 parts of aqueous acrylic emulsion, 1-5 parts of water-absorbing resins microballoon, titanium dioxide 30-50 Part, defoaming agent is aqueous defoamer OS-5201, one of FoamStar A10.
Wetting agent isThe cf-10 or extra-high effect wetting agent ot-75 of U.S.'s cyanogen.
Coalescing agent is alcohol ester 12.
Thickener is ROHM AND HAAS ASE-60.
Titanium dioxide is rutile type titanium white R800.
Technical effect of the invention, the present invention pass through water-absorbing resins monomer and nano-stephanoporate silicon dioxide is poly- in situ It closes, resin microsphere is prepared, resin microsphere water absorption rate is high, but the expansion ratio after absorbing water is low, thus by the resin microsphere It, can be by water adsorption existing for the place of aqueous coating more deep layer to wherein, to promote water when in water paint Property coating rapid draing, meanwhile, the resin microsphere water suction after expansion ratio it is small, and silica dioxide granule itself have it is certain Strength character, thus, the addition of the resin microsphere not only increases the rate of drying of coating, while improving the wear-resisting of coating Property.Additionally, it is preferred that, by selecting specific resin monomer in the application, so that this performance is further optimized.
Specific embodiment
Unless otherwise defined, the present invention used in all scientific and technical terms have with the present invention relates to technologies to lead The normally understood identical meaning of the technical staff in domain.Following embodiment is used to illustrate the present invention, but is not limited to the present invention.
The preparation of water paint water-absorbing resins microballoon
Preparation example 1
(1) acrylic acid after purification is soluble in water, it is placed under ice-water bath, stirs thereto and slow in conical flask Be added dropwise NaOH solution, be made into right 55% acrylic acid solution, be cooled to room temperature, be added into the acrylic acid solution after neutralization Crosslinking agent N, N- methylene-bisacrylamide, initiator ammonium persulfate, acrylamide and vinyl pyrrolidone, being sufficiently stirred makes Dissolution, obtains mixed liquor；
(2) by nano-stephanoporate silicon dioxide (partial size of nano-stephanoporate silicon dioxide is about 100nm) and dispersing agent span-60 It is added in hexamethylene, stirring sufficiently, is warming up to 40 DEG C, keeps nitrogen atmosphere, the mixed liquor that (1) prepares then is added dropwise to described three In mouth flask, drop, which finishes, is warming up to 75 DEG C, reacts 2.5h, filters, washed after reaction with methanol, is subsequently placed in baking oven and does It is dry, it is dried in vacuo after slight grinding, obtains white powder super absorbent resin microballoon.
It is based on parts by weight acrylic acid 20, acrylamide 5, vinyl pyrrolidone 5, nano-stephanoporate silicon dioxide 1, point Powder 1, crosslinking agent 0.05, initiator 0.05.
Preparation example 2
It is based on parts by weight acrylic acid 15, acrylamide 5, vinyl pyrrolidone 5, nano-stephanoporate silicon dioxide 1, point Powder 1, crosslinking agent 0.05, initiator 0.05.Other are the same as preparation example 1.
Preparation example 3
Vinyl pyrrolidone is not added, 10 parts of acrylamides are added, other are the same as preparation example 1.
Preparation example 4
Nano-stephanoporate silicon dioxide is not added, other are the same as preparation example 1.
Preparation example 5
Vinyl pyrrolidone and nano-stephanoporate silicon dioxide are not added, 10 parts of acrylamides are added, other same preparation examples 1。
The preparation of coating
Embodiment 1
It stirs to uniformly mixed aqueous acrylic emulsion, defoaming agent, titanium dioxide mixed low speed to obtain mixed liquor；It is mixed to above-mentioned It closing and the water-absorbing resins microballoon that preparation example 1 obtains is added in liquid, wetting agent, thickener, coalescing agent stirs evenly, after filtering, Filtrate is stood, waterborne road line paint is obtained.Wherein, 25 parts of aqueous acrylic emulsion, 2.5 parts of modified calcium carbonate, titanium dioxide 30 parts, contain 1.5 parts of wetting agent, 1 part of defoaming agent, 0.5 part of thickener, 0.2 part of coalescing agent.
Embodiment 2
The water-absorbing resins microballoon that preparation example 2 obtains is added, other are the same as embodiment 1.
Embodiment 3
The water-absorbing resins microballoon that preparation example 3 obtains, other embodiments 1. are added
Comparative example 1
The water-absorbing resins microballoon that preparation example 4 obtains is added, other are the same as embodiment 1.
Comparative example 2
The water-absorbing resins microballoon that preparation example 5 obtains is added, other are the same as embodiment 1.
According to the JT/T280-2004 performance for testing water paint and water swelling than [calculation, (after expansion for 24 hours Partial size-initial particle)/initial particle * 100%] water swellability is tested afterwards.As a result as shown in table 1 below.
The performance of 1 water paint of table
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, made any modification, equivalent replacement etc. be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of water paint preparation method of water-absorbing resins microballoon, using hexamethylene as solvent, with nanoporous titanium dioxide Silicon, comonomer, dispersing agent, crosslinking agent and initiator are main reactant, are formed using inverse suspension polymerization.
2. the method as described in claim 1, the comonomer is acrylic acid and acrylamide and vinyl pyrrolidone, third Right in olefin(e) acid is 50-80%, is specifically comprised the following steps:
(1) acrylic acid after purification is soluble in water, it keeps cooling down with ice-water bath, stirs thereto and that NaOH is slowly added dropwise is molten Liquid, be made into right 50-80% acrylic acid solution, be cooled to room temperature, into the acrylic acid solution after neutralization be added crosslinking agent, Initiator, acrylamide and vinyl pyrrolidone, being sufficiently stirred makes to dissolve, and obtains mixed liquor；
(2) nano-stephanoporate silicon dioxide and dispersing agent are added in hexamethylene, stirring sufficiently, is warming up to 40-50 DEG C, keeps nitrogen Then the mixed liquor that step (1) prepares is added dropwise in the three-necked flask by atmosphere, drop, which finishes, is warming up to 60-80 DEG C, reacts 2- 4h is filtered after reaction, is washed with methanol, is subsequently placed in drying in baking oven, is dried in vacuo after slight grinding, obtains white powder Last shape super absorbent resin microballoon.
3. the method as described in claim 1, it is preferred that crosslinking agent N, N- methylene-bisacrylamide；Initiator is azo Bis-isobutyronitrile or persulfuric acid salt, such as potassium peroxydisulfate, ammonium persulfate.
4. method as claimed in claim 1, it is preferred that the dosage of reactant is based on parts by weight acrylic acid 10-30, acryloyl Amine 5-10, vinyl pyrrolidone 5-10, nano-stephanoporate silicon dioxide 1-2, dispersing agent 1-2, crosslinking agent 0.05-0.2, initiator 0.02-0.1；Preferably acrylic acid 10-15, acrylamide 5-8, vinyl pyrrolidone 5-8, nano-stephanoporate silicon dioxide 1- 2, dispersing agent 1-2, crosslinking agent 0.05-0.1, initiator 0.05-0.1.
5. method as claimed in claim 1, it is preferred that the partial size of nano-stephanoporate silicon dioxide is 100-200nm.
6. the water-absorbing resins microballoon that any one of claim 1-5 the method is prepared.
7. a kind of preparation method of waterborne road line paint, includes the following steps:
It stirs to uniformly mixed aqueous acrylic emulsion, defoaming agent, titanium dioxide mixed low speed to obtain mixed liquor；
It is added water-absorbing resins microballoon as claimed in claim 6 into above-mentioned mixed liquor, wetting agent, thickener, coalescing agent stirs It mixes uniformly, after filtering, filtrate is stood, obtains waterborne road line paint.
8. the method for claim 7, it is preferred that titanium dioxide is rutile type titanium white R800.
9. the method for claim 7, it is preferred that contain 20-30 parts of aqueous acrylic emulsion, 1-5 parts of water imbibition Resin microsphere, 30-50 parts of titanium dioxide.
10. method as claimed in claim 7, wetting agent areThe cf-10 or extra-high effect wetting agent ot-75 of U.S.'s cyanogen；Film forming helps Agent is alcohol ester 12；Defoaming agent is aqueous defoamer OS-5201, one of FoamStar A10.
CN201811543303.2A 2018-12-17 2018-12-17 A kind of water paint water-absorbing resins microballoon and preparation method thereof Pending CN109370294A (en)

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CN114605886A (en) * 2022-04-15 2022-06-10 广州龙文建材有限公司 Exterior wall coating for building and preparation method thereof

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CN109971235A (en) * 2019-04-23 2019-07-05 杭州德问贸易有限公司 A kind of preparation method of putty powder for exterior wall enhancing particle
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Application publication date: 20190222