CN100447212C - Water industrial paint based on organosilicon acrylic acid epoxy ester water dispersion and preparation method thereof - Google Patents

Water industrial paint based on organosilicon acrylic acid epoxy ester water dispersion and preparation method thereof Download PDF

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CN100447212C
CN100447212C CNB2006100374965A CN200610037496A CN100447212C CN 100447212 C CN100447212 C CN 100447212C CN B2006100374965 A CNB2006100374965 A CN B2006100374965A CN 200610037496 A CN200610037496 A CN 200610037496A CN 100447212 C CN100447212 C CN 100447212C
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China
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water dispersion
epoxide acrylate
consumption
acrylate water
organosilicon epoxide
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CNB2006100374965A
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Chinese (zh)
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CN1927968A (en
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英志祥
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英志祥
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Abstract

The present invention provides one kind of water thinned industrial paint based on water dispersed organosilicon epoxy acrylate. The water thinned industrial paint is prepared with water dispersed organosilicon epoxy acrylate, inert antirust pigment, active antirust pigment, nanometer material modified antirust pigment, stuffing, dispersant, wetting agent, thickener, drying agent, mildew inhibitor, preservative, defoaming agent, deionized water and other materials. The water thinned industrial paint with water dispersed organosilicon epoxy acrylate as base material can form coating with the features of high mechanical strength and high anticorrosive performance similar to that of epoxy resin as well as the features of high weather resistance and good decoration performance like acrylate resin. The water thinned industrial paint has convenient use and wide application range.

Description

Based on aqueous industrial coating of organosilicon epoxide acrylate water dispersion and preparation method thereof
Technical field
The present invention relates to the aqueous industrial coating technology, particularly a kind of aqueous industrial coating based on organosilicon epoxide acrylate water dispersion and preparation method thereof.
Background technology
According to statistics, the metal of the annual rust corrosion in the whole world is about more than 20% of annual production, the enormous economic loss of bringing to the world.The financial loss that the annual metallic corrosion of China causes accounts for 4% of gross national product, has surpassed the damnous summation of fire, disaster caused by a windstorm and earthquake.Adopt paint spraying to prevent that metallic corrosion from being the simplest, saving, effective means.But present most of metal protection coating all are solvent based coatings, and wherein content of volatile organic compound (VOC) is approximately 50%, produce and construction process in can evaporate, to environment with HUMAN HEALTH works the mischief and easy accident such as initiation fire.Therefore, countries in the world have all been formulated the release of strict environmental regulation restriction organic volatile in succession, promote the anti-corrosion of metal industrial coating to be developed to the direction of " greenization " rapidly by traditional solvent-borne type.The exploitation of Water-borne modification technology and pollution-free rustproof pigment is the focus and one of main developing direction of research.At present, no matter domestic still external, the production of waterborne metallic paint is also very limited with application, only accounts for about 10% of industrial coating ultimate production, and mainly concentrates on cathode electrodip painting and other occasions not high to performance requriements.Aspect waterborne metallic paint, also there are some patents to announce, as disclosed coating such as patent CN1255935A, CN 1055747A, formed film or easily efflorescence, weathering resistance poor, or sticking power is undesirable, or can not be normal temperature crosslinked and the compactness that causes filming is poor, thereby spread and application state be not good.U.S. Pat 6172159 has prepared a kind of aqueous polyester resin, and is that base-material makes the water-borne coatings that directly is coated on metal with it, but this water-borne coatings only can be as priming paint, and is not suitable for use in finish paint; Though the aqueous polyurethane system over-all properties of the water-base epoxy that patent US5770657 provides-amine curing system and patent US6395820 preparation is higher, is bi-component waterborne coating, (Pot life) is shorter for pot-life, and is inconvenient to transport and construct; Therefore, still need at present the exploitation good endurance, anti-dodge the erosion property and wet sticking power is excellent, the high-performance water-based metal industry coating of ambient temperature curable with low water vapour and OTR oxygen transmission rate.
Summary of the invention
The objective of the invention is to overcome the shortcoming that prior art exists, a kind of preparation method of the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion is provided.
Another object of the present invention is to provide a kind of aqueous industrial coating based on organosilicon epoxide acrylate water dispersion that is obtained by method for preparing.
Purpose of the present invention is achieved through the following technical solutions: a kind of aqueous industrial coating based on organosilicon epoxide acrylate water dispersion, and in mass fraction, this system component and proportioning are as follows:
Raw materials quality part
Organosilicon epoxide acrylate water dispersion 40~60
Inertia rust-stabilising pigment 6~22
Active rust-stabilising pigment 3~9
Nano-material modified rust-stabilising pigment 2~5
Filler 10~20
Dispersion agent 0.1~0.5
Wetting agent 0.1~0.3
Thickening material 0.2~0.6
Siccative 1~3
Mould inhibitor 0.1~0.5
Sanitas 0.1~0.5
Defoamer 0.05~0.1
PH regulator agent an amount of (adjusting pH is 8~10)
Deionized water 3~15
Described organosilicon epoxide acrylate water dispersion obtains for self-control, and its synthesizing formula is as follows:
Parts by weight of raw materials
Resins, epoxy 30~50
Lipid acid 15~20
Unsaturated acid anhydride 5~10
Acrylic monomer 30~40
Silane coupling agent 3~8
Neutralizing agent 2~6
Catalyzer 0.02~0.06
Initiator 0.3~0.8
Reductive agent 0.2~0.5
Deionized water 120~230
The raw material selection of synthesizing organo-silicon epoxide acrylate water dispersion is as follows:
Described Resins, epoxy is bisphenol A type epoxy resin, can be that the trade mark commonly used is one or more among E44, E20 and the E12, and the optimum amount scope is 35~45 weight parts.
Described lipid acid can be dehydrated castor oleic acid, eleostearic acid, linolenic acid, chooses wherein one or more, and the optimum amount scope is 16~18 weight parts.
Described unsaturated acid anhydride can be MALEIC ANHYDRIDE, FUMARIC ACID TECH GRADE, tetrahydrophthalic anhydride, chooses wherein one or more, and the optimum amount scope is 6~9 weight parts.
Described acrylic monomer can be one or more the mixture in vinylformic acid, methacrylic acid, butyl acrylate, methyl methacrylate, butyl methacrylate, the Isooctyl acrylate monomer, and its optimum amount scope is 25~35 weight parts.
Described silane coupling agent is that functional group is the siloxanes of vinyl, specifically can be in vinyltrimethoxy silane, vinyltriethoxysilane, vinyl silane triisopropoxide, vinyl three (2-methoxy ethoxy) silane, the γ-methacryloxypropyl trimethoxy silane one or more, the optimum amount scope be 4~6 weight parts.
Described neutralizing agent is triethylamine, N, one or more in N-dihydroxymethyl thanomin, the 2-amino-2-methyl-1-propanol, and the optimum amount scope is 3~5 weight parts.
Described catalyzer is a kind of of lithium hydroxide, plumbous oxide, and optimum amount is 0.03~0.05 weight part.
Described initiator is one or both in benzoyl peroxide, Diisopropyl azodicarboxylate, the tertbutyl peroxide, and the optimum amount scope is 0.4~0.6 weight part.
Described reductive agent be in sodium metabisulphite, the sodium formaldehyde sulphoxylate one or both, the optimum amount scope is 0.3~0.5 weight part.
Described deionized water optimum amount scope is 150~200 weight parts, requires its specific conductivity≤20 μ s/cm.
The solid content of this organosilicon epoxide acrylate water dispersion is 35~50%, have Resins, epoxy physical strength height, the good characteristics of antiseptic property, have good, the ornamental high characteristics of acrylic resin weather resistance again, introduce organosilicon and help to realize the self-crosslinking function, and absorbed organosilyl good adhesion, resistance toheat and chemical resistance; Vinyl silicane coupling agent is grafted on the side chain of acrylic acid epoxy ester copolymer in its molecular structure, and the siloxanes segment makes glued membrane have low surface tension at water dispersion glued membrane surface enrichment; Can produce activity-Si (OH) group after the hydrolysis, (Si-O-Si-) crosslinking structure produces more cross-linking set to the active group condensation formation cubic network inner or surperficial with polymkeric substance, can realize normal temperature crosslinked; Need not to add emulsifying agent in the process of graft copolymerization, can in glued membrane, not form surfactant and assemble the pore form, also have significant improvement at corrosion-resistant, antiblocking, levelling, aspect of performance such as water-fast; The optimum amount of organosilicon epoxide acrylate water dispersion is 45~55 parts.
Described inertia rust-stabilising pigment is red iron oxide or iron mica, can hinder the infiltration to metal base of water vapour and oxygen effectively, has improved the shielding properties of coating to the metallic surface.Its optimum amount is 10~18 parts.
To a certain degree chemical reaction can take place with metal base in described active rust-stabilising pigment, thereby form one deck passivation layer in the metallic surface, effectively obstacle corrosion of metal, can be one or more the mixture in zinc oxide, zinc chromate, zinc phosphate, strontium yellow, zinc-chrome yellow, zinc borate, modified zinc phosphate, aluminium triphosphate, the modification aluminium triphosphate; Preferentially select one or more the mixture in low toxicities such as zinc phosphate, zinc borate, modified zinc phosphate, aluminium triphosphate, modification aluminium triphosphate or the nontoxic material for use, its optimum amount is 4~7 parts.
Described nano-material modified rust-stabilising pigment is to be carrier with polyphosphoric acid iron (titanium), under certain conditions, introducing is through nano-powder materials such as pretreated silica-based, titanium bases, through mechanically mixing, disperse nano-powder material is evenly dispersed on the carrier, after the product that exhaust aftertreatment obtains.Its antirust mechanism is to utilize wherein phosphate radical and the reaction of the iron atom on steel construction surface to generate the tertiary iron phosphate complex salt; this layer complex salt firm attachment is at steel piece surface; thereby protected steel part; on the other hand; after introducing, nano material can form fine and close paint film; thereby intercepted water molecules effectively, chlorion, the infiltration of oxygen etc. and the erosion that causes to steel surface.Described nano anticorrosive pigment can be a kind of of the WD-D-500 type of Wanda (Wuxi) Science and Technology Ltd. or WD-D-800 type composite iron-titanium rust-stabilising pigment, and its optimum amount is 3~5 parts.
The use of described filler can not only reduce the cost of coating, and can play the effect that improves functional coating film, described filler can be one or more in talcum powder, sericite in powder, calcined kaolin, barium sulfate, silica powder, the diatomite, and wherein talcum powder can prevent the coating sagging and absorb the function of stretching stress, minimizing crack and hole in filming; Sericite in powder can improve the weathering resistance of filming, anti-water-permeable greatly, strengthen and film and matrix sticking power and coating strength, improves film apparent; Calcined kaolin can make coating have certain thixotropy, improves the stability in storage of coating; Lime carbonate can improve coating suspension, in and the acidity of coating and improve smoothness etc.The optimum amount of filler in prescription is 12~18 parts.
Described dispersion agent is the unsaturated polycarboxylic acid polymers soln of lower molecular weight, is mainly in 5040 dispersion agents of BYK-P104, the BYK-P105 of German BYK company, German Henkel company one or both; Its preferable amount is 0.2~0.4 part.
Described wetting agent is polyether-modified polysiloxane-based wetting agent, can effectively reduce the interfacial tension between material, can significantly improve flow characteristics, makes the interface produce smooth, smooth appearance effect.Wetting agent is mainly one or both of Tego Wet KL 245, BYK346; Its optimum amount is 0.15~0.25 part.
Described thickening material is a nonionic hydrophobic nature modified epoxy ethane block polymers of polyurethane, and for example one or both of the COATEX BR 125P of the RW-8 of Rohm-Haas company or French COATEX company are used in combination, and optimum amount is 0.3~0.5 part.
Described siccative is one or both of cobalt iso-octoate, manganese naphthenate and calcium naphthenate, and optimum amount is 1.5~2.5 parts.
Described mould inhibitor requires broad-spectrum high efficacy, can suppress bacterium and fungal growth in the coating, and low toxicity, VOC free, at high light and high temperatures, can slowly discharge effectiveness, does not run off, and is non-yellowing.Mould inhibitor can be killing suddenly of the M-8 of Acticide MKA, Rohm-Haas company of Britain Thor company and three rich biochemical (Shanghai) companies among the NaPT one or more, optimum amount is 0.2~0.4 part.
Described sanitas is the organism of effectively inhibition and kill bacteria and mould, can for hundred of the LXE of the Acticide THP of Britain Thor company, Rohm-Haas company, three rich biochemical (Shanghai) companies kill among the BRC-plus one or more, optimum amount is 0.2~0.4 part.
Described defoamer can be polyether-modified polysiloxane solution, can be among the EFKA-2550 of the SN313 of the defoamer BYK-022 of German BYK company, German Henkel company, Dutch Efka company one or more, and optimum amount is 0.06~0.08 part.
Described pH regulator agent can be triethylamine, N, one or more in N-dihydroxymethyl thanomin, the 2-amino-2-methyl-1-propanol, and its consumption is adjusted to 8~10 scope with the pH value with system and decides.
Described deionized water optimum amount scope is 5~14 parts, requires its specific conductivity≤20 μ s/cm.
The preparation method of above-mentioned aqueous industrial coating based on organosilicon epoxide acrylate water dispersion (drying at room temperature type) is as follows:
(1) in Scattered Kettle, adds the deionized water, dispersion agent, wetting agent of formula ratio, 1/3 defoamer, under the rotating speed of 900~1000rpm, stirred 15~30 minutes, make mixing of materials even;
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred under the rotating speed of 400~500rpm 20~30 minutes, made mixing of materials even;
(3) add the inertia rust-stabilising pigment of formula ratio, active rust-stabilising pigment, nano-material modified rust-stabilising pigment, filler, 1/3 defoamer successively, under 600~700rpm rotating speed, stirred 1.5~2 hours, make mixing of materials even;
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m;
(5) add siccative, thickening material, mould inhibitor, sanitas, the remaining defoamer of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 400~500rpm, stirred 1~1.5 hour, make mixing of materials even;
(6) detect the pH value, add an amount of pH regulator agent, adjusting the pH value is 8~10;
(7) filter packing with 80~120 order strainers.
The working mechanism that the present invention is based on the aqueous industrial coating of organosilicon epoxide acrylate water dispersion is: the base-material that adopt (1) is an organosilicon epoxide acrylate water dispersion, the acrylic acid epoxy ester copolymer sheet surface tension that contains siloxanes group is lower, minimum in the film process for reaching the system surface energy, the low surface energy component can migrate to high surface energy component outside gradually, thereby form the siloxanes segment in the film coated surface enrichment, hydrolysis under certain condition forms silanol, inner or the surperficial active group condensation of silanol and polymkeric substance forms cubic network (Si-O-Si-) crosslinking structure, cause the inner chemical cross-linking set of emulsion to increase, cross-linking density increases, strengthen the density on the top layer of filming, improve the thermotolerance and the sticking power of filming simultaneously, help also to realize that self-vulcanizing is crosslinked; (2) side chain of paint binder (acrylate and silane coupling agent segment) is different with main chain (epoxy ester segment) hydrophilicity, hard outer soft nucleocapsid structure in the time of the emulsification dispersive, can forming, and it is higher to reach the stratum nucleare second-order transition temperature, and the shell second-order transition temperature is lower; The minimum film-forming temperature of prepared coating is mainly determined by the second-order transition temperature of shell, so can be in room temperature film-forming; (3) to a certain degree chemical reaction can take place with metal in the reactive pigment in this coating, thereby forms the metallic compound transition layer of one deck passivation in the metallic surface, prevents corrosion of metal; In addition; also introduced nano-material modified reactive pigment (composite Nano ferrotitanium rust-stabilising pigment); the utilization phosphate radical wherein and the iron atom reaction generation tertiary iron phosphate complex salt on steel construction surface; this layer complex salt firm attachment is at steel piece surface, thereby protected steel part, on the other hand; after introducing, nano material can form fine and close paint film; thereby intercepted water molecules effectively, chlorion, the infiltration of oxygen etc. and the erosion that causes to steel surface.
The main performance index of aqueous industrial coating that the present invention is based on organosilicon epoxide acrylate water dispersion is as follows:
Compared with prior art, aqueous industrial coating of the present invention has following advantage and effect: (1) Resins, epoxy is filmed, and erosion resistance is strong, sticking power good, is widely used as the film-forming polymer of metal anti-corrosive paint, but the photostabilization of filming of its formation is poor, easily efflorescence, weathering resistance is bad.It is base-material that this coating adopts drying at room temperature type organosilicon epoxide acrylate water dispersion, film both have Resins, epoxy physical strength height, the good characteristics of antiseptic property, have good, the ornamental high characteristics of acrylic resin weather resistance again, introduce organosilicon, also help to realize the self-crosslinking function, and absorbed organosilyl good heat resistance energy and chemical resistance etc.; (2) easy to use, applied widely; This coating both can at room temperature be cross-linked to form and film, and also can pass through the baking film forming, but have good hardness of film pollution resistance; (3) formed the filming of this coating is the important barrier of water, water vapor, oxygen and pollutent etc.; Active color stuffing wherein also has the function of galvanic protection, can slow down the galvanic corrosion of metal base effectively; Film and not only have good physicals and also have good weathering resistance and salt spray resistance; (4) aqueous industrial coating of the present invention belongs to environmental friendly product, not only economizes on resources but also help environment protection.
Embodiment
The invention will be further described below in conjunction with embodiment, but the present invention claimed scope be not limited to the scope of embodiment statement.
Embodiment 1:
The present invention is based on the aqueous industrial coating of organosilicon epoxide acrylate water dispersion, as follows in the composition and the proportioning of mass fraction:
Component Charging capacity (kilogram)
Organosilicon epoxide acrylate water dispersion ??450
Red iron oxide ??140
Aluminium triphosphate ??50
WD-D-500 type composite iron-titanium rust-stabilising pigment ??30
Talcum powder ??100
Barium sulfate ??60
??BYK-P104 ??4
??Tego?Wet?KL?245 ??2.5
??RW-8 ??3
Different Rinmann's green ??15
??Acticide?MKA ??2
??Acticide?THP ??3
??BYK-022 ??0.8
2-amino-2-methyl-1-propanol ??2.5
Deionized water ??137.2
Add up to (kilogram) ??1000
Homemade organosilicon epoxide acrylate water dispersion preparation process concrete steps are as follows among the present invention:
(1) in reactor, add the lipid acid of formula ratio, when stirring and being warming up to 110~130 ℃, stop to stir, add the Resins, epoxy and the catalyzer of formula ratio, start stirring, continue to be warming up to 200~240 ℃; Esterification is carried out in insulation, reaches 6~10mgKOH/g until acid number, and viscosity (25 ℃ of form pipes) when reaching 8~10s, finish by esterification;
When (2) reducing temperature of reaction to 160~180 ℃, stop to stir, add the unsaturated acid anhydride of formula ratio, start stirring, be warming up to 230~250 ℃ with the speed of 2~4 ℃/min (please provide value range, avoid occurring point value), insulation reaction is 0.5~1 hour then;
(3) be cooled to 100~120 ℃, begin to drip acrylic monomer, silane coupling agent and initiator that the premix of formula ratio gets togather, 2~3 hours dropping time, continued insulation reaction then 3~5 hours, and, added the reductive agent of formula ratio when system viscosity (form pipe) when reaching 10~12s, continue reaction 0.5~1 hour, when monomer conversion 〉=95%, temperature is reduced to 80~80 ℃, graft polymerization reaction is finished;
(4) in another reactor, add the neutralizing agent and the deionized water of formula ratio, stir and be warming up to 50~60 ℃, slowly join in the resin of above-mentioned preparation, stirred 0.5~1 hour, and promptly got solid content and be 35~50% drying at room temperature type organosilicon epoxide acrylate water dispersion.
The preparation method of this aqueous industrial coating is:
(1) in Scattered Kettle, adds the deionized water, BYK-P104, Tego Wet KL245 of formula ratio, 1/3 BYK-022, under the rotating speed of 900rpm, stirred 10 minutes, make mixing of materials even.
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred 30 minutes under the rotating speed of 400rpm, made mixing of materials even.
(3) add the red iron oxide, aluminium triphosphate, WD-D-500 type composite iron-titanium rust-stabilising pigment, talcum powder, barium sulfate of formula ratio, 1/3 BYK-022 successively, under the 700rpm rotating speed, stirred 2 hours, make mixing of materials even.
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m.
(5) add different Rinmann's green, RW-8, Acticide MKA, Acticide THP, the remaining BYK-022 of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 450rpm, stirred 1 hour, make mixing of materials even.
(6) detect the pH value, add the 2-amino-2-methyl-1-propanol of formula ratio, adjusting the pH value is 9.
(7) filter packing with 100 order strainers.
The performance such as the following table of the aqueous industrial coating for preparing are listed:
Embodiment 2:
The aqueous industrial coating based on organosilicon epoxide acrylate water dispersion of another embodiment of the present invention is as follows in the composition and the proportioning of parts by weight:
Component Charging capacity (kilogram)
Organosilicon epoxide acrylate water dispersion ??500
Red iron oxide ??150
Aluminium triphosphate ??40
WD-D-500 type composite iron-titanium rust-stabilising pigment ??40
Talcum powder ??80
Barium sulfate ??50
??BYK-P104 ??2
??Tego?Wet?KL?245 ??1.5
??RW-8 ??4
Different Rinmann's green ??20
??Acticide?MKA ??3
??Acticide?THP ??2
??BYK-022 ??0.6
2-amino-2-methyl-1-propanol ??2
Deionized water ??104.9
Add up to (kilogram) ??1000
The preparation process of organosilicon epoxide acrylate water dispersion is with embodiment 1 in the present embodiment.
The preparation method of this aqueous industrial coating is:
(1) in Scattered Kettle, adds the deionized water, BYK-P104, Tego Wet KL245 of formula ratio, 1/3 BYK-022, under the rotating speed of 1000rpm, stirred 15 minutes, make mixing of materials even.
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred 20 minutes under the rotating speed of 400rpm, made mixing of materials even.
(3) add the red iron oxide, aluminium triphosphate, WD-D-500 type composite iron-titanium rust-stabilising pigment, talcum powder, barium sulfate of formula ratio, 1/3 BYK-022 successively, under the 600rpm rotating speed, stirred 1.5 hours, make mixing of materials even.
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m.
(5) add different Rinmann's green, RW-8, Acticide MKA, Acticide THP, the remaining BYK-022 of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 450rpm, stirred 1.5 hours, make mixing of materials even.
(6) detect the pH value, add the 2-amino-2-methyl-1-propanol of formula ratio, adjusting the pH value is 8.
(7) filter packing with 100 order strainers.
The performance such as the following table that prepare aqueous industrial coating are listed:
Embodiment 3:
The aqueous industrial coating based on organosilicon epoxide acrylate water dispersion of the another embodiment of the present invention is as follows in the composition and the proportioning of parts by weight:
Component Charging capacity (kilogram)
Organosilicon epoxide acrylate water dispersion ??550
Red iron oxide ??110
Aluminium triphosphate ??60
WD-D-500 type composite iron-titanium rust-stabilising pigment ??50
Talcum powder ??70
Barium sulfate ??70
??BYK-P104 ??3
??Tego?Wet?KL?245 ??2
??RW-8 ??5
Different Rinmann's green ??25
??Acticide?MKA ??3
??Acticide?THP ??3
??BYK-022 ??0.7
2-amino-2-methyl-1-propanol ??2.4
Deionized water ??45.9
Add up to (kilogram) ??1000
The preparation process of organosilicon epoxide acrylate water dispersion is with embodiment 1 in the present embodiment.
The preparation method of this aqueous industrial coating is:
(1) in Scattered Kettle, adds the deionized water, BYK-P104, Tego Wet KL245 of formula ratio, 1/3 BYK-022, under the rotating speed of 950rpm, stirred 30 minutes, make mixing of materials even.
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred 20 minutes under the rotating speed of 500rpm, made mixing of materials even.
(3) add the red iron oxide, aluminium triphosphate, WD-D-500 type composite iron-titanium rust-stabilising pigment, talcum powder, barium sulfate of formula ratio, 1/3 BYK-022 successively, under the 700rpm rotating speed, stirred 1 hour, make mixing of materials even.
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m.
(5) add different Rinmann's green, RW-8, Acticide MKA, Acticide THP, the remaining BYK-022 of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 500rpm, stirred 1 hour, make mixing of materials even.
(6) detect the pH value, add the 2-amino-2-methyl-1-propanol of formula ratio, adjusting the pH value is 8.5.
(7) filter packing with 100 order strainers.
The performance such as the following table that prepare aqueous industrial coating are listed:
Embodiment 4:
The present invention's aqueous industrial coating based on organosilicon epoxide acrylate water dispersion of an embodiment again is as follows in the composition and the proportioning of parts by weight:
Component Charging capacity (kilogram)
Organosilicon epoxide acrylate water dispersion ??500
Mica iron oxide red ??160
Zinc phosphate ??40
WD-D-800 type composite iron-titanium rust-stabilising pigment ??30
Sericite in powder ??60
Silica powder ??80
??Henkel?5040 ??3
??BYK346 ??2
??COATEX?BR125P ??3.5
Manganese naphthenate ??18
??M-8 ??2
??LXE ??3
??SN313 ??0.8
2-amino-2-methyl-1-propanol ??2.8
Deionized water ??94.9
Add up to (kilogram) ??1000
The preparation process of organosilicon epoxide acrylate water dispersion is with embodiment 1 in the present embodiment.
The preparation method of this coating is:
(1) in Scattered Kettle, adds the deionized water, Henkel 5040, BYK346 of formula ratio, 1/3 SN313, under the rotating speed of 1000rpm, stirred 20 minutes, make mixing of materials even.
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred 20 minutes under the rotating speed of 400rpm, made mixing of materials even.
(3) add the mica iron oxide red, zinc phosphate, WD-D-800 type composite iron-titanium rust-stabilising pigment, sericite in powder, silica powder of formula ratio, 1/3 SN313 successively, under the 600rpm rotating speed, stirred 2 hours, make mixing of materials even.
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m.
(5) add manganese naphthenate, COATEX BR125P, M-8, LXE, the remaining SN313 of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 500rpm, stirred 1.5 hours, make mixing of materials even.
(6) detect the pH value, add the 2-amino-2-methyl-1-propanol of formula ratio, adjusting the pH value is 9.3.
(7) filter packing with 100 order strainers.
The performance such as the following table that prepare aqueous industrial coating are listed:
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (10)

1, a kind of aqueous industrial coating based on organosilicon epoxide acrylate water dispersion is characterized in that: composition and proportioning in mass fraction are as follows
Raw materials quality part
Organosilicon epoxide acrylate water dispersion 40~60
Inertia rust-stabilising pigment 6~22
Active rust-stabilising pigment 3~9
Nano-material modified rust-stabilising pigment 2~5
Filler 10~20
Dispersion agent 0.1~0.5
Wetting agent 0.1~0.3
Thickening material 0.2~0.6
Siccative 1~3
Mould inhibitor 0.1~0.5
Sanitas 0.1~0.5
Defoamer 0.05~0.1
Deionized water 3~15
The synthesizing formula of described organosilicon epoxide acrylate water dispersion is as follows
Parts by weight of raw materials
Resins, epoxy 30~50
Lipid acid 15~20
Unsaturated acid anhydride 5~10
Acrylic monomer 30~40
Silane coupling agent 3~8
Neutralizing agent 2~6
Catalyzer 0.02~0.06
Initiator 0.3~0.8
Reductive agent 0.2~0.5
Deionized water 120~230
The solid content of described organosilicon epoxide acrylate water dispersion is 35~50%; Described nano-material modified rust-stabilising pigment is to be carrier with polyphosphoric acid iron, polyphosphoric acid titanium, introduces through pretreated silica-based, titanium-based nano powder body material, through mechanically mixing, dispersion, nano-powder material is evenly dispersed on the carrier, obtains after exhaust.
2, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: the consumption of organosilicon epoxide acrylate water dispersion is 45~55 parts.
3, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described inertia rust-stabilising pigment is red iron oxide or iron mica, and its consumption is 10~18 parts.
4, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described active rust-stabilising pigment is one or more the mixture in zinc oxide, zinc chromate, zinc phosphate, strontium yellow, zinc-chrome yellow, zinc borate, modified zinc phosphate, aluminium triphosphate, the modification aluminium triphosphate; Its consumption is 4~7 parts; The consumption of described nano-material modified rust-stabilising pigment is 3~5 parts.
5, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described filler is one or more in talcum powder, sericite in powder, calcined kaolin, barium sulfate, silica powder, the diatomite; The consumption of filler in prescription is 12~18 parts.
6, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described dispersion agent is the unsaturated polycarboxylic acid polymers soln of lower molecular weight; Its consumption is 0.2~0.4 part; Described wetting agent is polyether-modified polysiloxane-based wetting agent; Its consumption is 0.15~0.25 part; Described thickening material is a nonionic hydrophobic nature modified epoxy ethane block polymers of polyurethane; Consumption is 0.3~0.5 part; Described siccative is one or both of cobalt iso-octoate, manganese naphthenate and calcium naphthenate, and consumption is 1.5~2.5 parts.
7, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described mould inhibitor consumption is 0.2~0.4 part; Described sanitas consumption is 0.2~0.4 part; Described defoamer consumption is 0.06~0.08 part.
8, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1, it is characterized in that: add the pH value that the pH regulator agent comes regulation system, described pH regulator agent is triethylamine, N, in N-dihydroxymethyl thanomin, the 2-amino-2-methyl-1-propanol one or more, its consumption is adjusted to 8~10 scope with the pH value with system and decides.
9, the aqueous industrial coating based on organosilicon epoxide acrylate water dispersion according to claim 1 is characterized in that: described deionized water amount ranges is 5~14 parts, its specific conductivity≤20 μ s/cm.
10, according to the preparation method of each described aqueous industrial coating based on organosilicon epoxide acrylate water dispersion of claim 1~9, it is characterized in that:
(1) in Scattered Kettle, adds the deionized water, dispersion agent, wetting agent of formula ratio, 1/3 defoamer, under the rotating speed of 900~1000rpm, stirred 15~30 minutes, make mixing of materials even;
(2) organosilicon epoxide acrylate water dispersion of adding formula ratio 1/2 stirred under the rotating speed of 400~500rpm 20~30 minutes, made mixing of materials even;
(3) add the inertia rust-stabilising pigment of formula ratio, active rust-stabilising pigment, nano-material modified rust-stabilising pigment, filler, 1/3 defoamer successively, under 600~700rpm rotating speed, stirred 1.5~2 hours, make mixing of materials even;
(4) above-mentioned slurry is ground by sand mill, until fineness≤30 μ m;
(5) add siccative, thickening material, mould inhibitor, sanitas, the remaining defoamer of remaining organosilicon epoxide acrylate water dispersion, formula ratio, under the rotating speed of 400~500rpm, stirred 1~1.5 hour, make mixing of materials even;
(6) detect the pH value, add an amount of pH regulator agent, adjusting the pH value is 8~10;
(7) filter packing with 80~120 order strainers.
CNB2006100374965A 2006-09-05 2006-09-05 Water industrial paint based on organosilicon acrylic acid epoxy ester water dispersion and preparation method thereof CN100447212C (en)

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