CN102702891A - Inner wall coating composition with multiple environmental improvement functions - Google Patents
Inner wall coating composition with multiple environmental improvement functions Download PDFInfo
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- CN102702891A CN102702891A CN2012101965845A CN201210196584A CN102702891A CN 102702891 A CN102702891 A CN 102702891A CN 2012101965845 A CN2012101965845 A CN 2012101965845A CN 201210196584 A CN201210196584 A CN 201210196584A CN 102702891 A CN102702891 A CN 102702891A
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Abstract
The invention provides an inner wall coating composition with multiple environmental improvement functions, which mainly comprises the following components in part by weight: 35.0-40.0 parts of film-forming substance, 0.4-0.6 part of freeze-thawing stabilizer, 35.0-40.0 parts of color filler, 5-7 parts of coating auxiliary agent, 1-15 parts of bamboo charcoal and acceptable amount of water, wherein the film-forming substance is acrylic acid copolymer capable of stably complexing with bamboo charcoal particles; the freeze-thawing stabilizer is long-chain epoxyethane (EO) block fatty alcohol polyoxyethylene ether; and based on the total weight of the composition, the total content of volatile organic compounds (VOC) in the composition is not higher than 0.01wt%.
Description
Technical field
The present invention relates to a kind of is the antibiotic paint and preparation method thereof of characteristics with high environment-friendly and high-performance, and relating to a kind of in particular is the coating and preparation method thereof of the multiple environmental improvement function of possessing of main film forming substance by vinyl resin.
Background technology
Aqueous inner wall paint be a kind ofly construct easily, environmental friendliness, environment protection health, Chemicals that value-added rates is high.It is beautiful lastingly that it not only has building material surfaces such as the construction wall of making, decorative building material; The function that increases the service life; Also have decorative environment to give the beautiful enjoyment or the function of eye-catching mark; Along with the continuous development of science and technology, aqueous inner wall paint progressively becomes a kind of functional strong and high fine chemistry product of environmental requirement.
Water emulsion paint for internal wall use at home is more and more general, all can be used in nearly all indoor decoration.People only felt it is that aqueous product is with regard to safety and environmental protection in the past; But still can contain solvent and film coalescence aid in the actual aqueous product is exactly usually said VOC value, and traditional aqueous inner wall paint well can add 12% the better film forming of film coalescence aid help filmogen for the paint film property performance; Simultaneously, also can add 12% solubility promoter and have good freeze-thaw stability (requiring part in the GB) by coating.Harm in view of VOC; Many countries have issued that relevant criterion limits the content of VOC in the coating products; As: German blue sky make 2000, Britain coating federation, China's standards such as " HJ/T201-2005 environmental labelling product technical requirements water-borne coatingss " made strict regulation to the VOC in the aqueous inner wall paint; Simultaneously, everybody also more and more pays close attention to VOC in the coating to the influence of healthy and environment.
The salient features that reduces VOC in the coating and do not influence simultaneously to the pollution of environment and to the harm of human body coating is the theme that global coating industry is explored the way forward always.Coating products in the existing market is mainly realized low VOC value through two approach; A kind of approach is improving the paint film film-forming properties through adding the high film coalescence aid of boiling point, because regulation is not calculated in VOC greater than the chemical substance of 250 ℃ of boiling points in the VOC detection method; Also can add simultaneously the few high polymeric solubility promoter of volatility and improve freeze-thaw stability; Another kind of by way of being the VOC content that directly reduces in the coating.But these two kinds of methods all exist drawback, and still there is this potential safety hazard in high boiling film coalescence aid, and the VOC content that simply reduces in the coating often causes that the performance of coating declines to a great extent.
In addition, because the deterioration and the ecological damage of environment are serious, reduce the natural immunity function of human body; Simultaneously; Various prevailing disease are but propagated rapidly (for example: SARS, bird flu, first type HN1); It is more and more that various recessiveness in the life are polluted for example electromagnetic radiation etc., thus people can have a demand of functions such as antibiotic, radioprotective or even health care to coating also increasingly high.Existing antibiotic paint generally reaches and makes paint film antimicrobial purpose through adding organic heterocyclic nitrogen-group fungicide and inorganic oxide class antiseptic-germicide; The two shortcoming is also very obvious: the biological hazard property of organic series bactericidal agent self is high; Mineral-type antibacterial antiplaque agent weak effect destroys paint film easily; Influence the beautiful lastingly of coating paint film, and both long-lasting all non-constants.In addition, also have some coating products to adopt silver ionss to reach the sterilization purpose, but since the cost of material of silver ions than higher, thereby improved the price of coating products greatly.Have the radiation shielding coating product and then realize radiation proof function, but the product that does not also have to satisfy these demands simultaneously occurs through adding traditional radioprotective matrix such as red stone, silica powder, lime carbonate.
In addition; Along with the requirement to quality of life improves constantly; Have discharge negative ion, regulate atmospheric moisture, materials with function such as purify air also had application market more widely; Also occurred some successively and possessed some the coating products in these functions, but their function singlenesses often are difficult to all promising policy multiple environmental protection demand.In sum, this area lacks a kind of inner-wall coating composition that possesses multiple environmental improvement function, and keeps good conventional application performance.
Summary of the invention
First purpose of the present invention is to obtain a kind of inner-wall coating composition that possesses multiple environmental improvement function, and keeps good conventional application performance.
Second purpose of the present invention is to obtain a kind of interior wall coating that possesses multiple environmental improvement function, and keeps good conventional application performance.
The 3rd purpose of the present invention is to obtain a kind of preparation method who possesses the interior wall coating of multiple environmental improvement function, and keeps good conventional application performance.
In first aspect of the present invention, a kind of inner-wall coating composition that possesses multiple environmental improvement function is provided, said compsn mainly is made up of following components by weight percent:
Filmogen 35.0～40.0 weight parts; Wherein said filmogen is the PEMULEN TR2 emulsion with bamboo charcoal particulate stable complexation;
Freeze-thaw stabiliser 0.4～0.6 weight part, said freeze-thaw stabiliser are oblong link oxidative ethane (EO) block AEO;
Color stuffing 35.0 40.0 weight parts;
Coatings additive(s) 5～7 weight parts;
Bamboo charcoal 1～15 weight part;
Water that can the acceptance amount;
The total content of volatile chemical (VOC) is not higher than 0.01 weight % in the said compsn, in composition total weight.
In a preference, the complexing degree of said bamboo charcoal particulate is more than 5%, preferably more than 7%, more preferably more than 10%.
In a preference, the granularity of said bamboo charcoal particulate is preferably 1 micron smaller or equal to 10 microns, is 0.5 micron, is 100 nanometers, is 50 nanometers, is 40 nanometers, is 30 nanometers, is 20 nanometers, is most preferably 10 nanometers.In a preference, said volatile chemical is volatility solubility promoter, volatility film coalescence aid or its combination.
In a preference, said compsn does not contain volatile chemical.
In an embodiment of the present invention; The emulsion particle diameter of said filmogen is distributed as 100～120nm, the solid constituent between 47～53%, complexing degree >=5% of bamboo charcoal particulate; Second-order transition temperature Tg is between 5～7 ℃, and minimum film-forming temperature MFFT is between 2～0 ℃.
In a preference; The emulsion particle diameter of said filmogen is distributed as 100～120nm, median size 105nm, the solid constituent between 47～53%, complexing degree>=7% of bamboo charcoal particulate; Residual monomer≤100ppm; TVOCs≤100ppm, second-order transition temperature Tg are between 5～7 ℃, and minimum film-forming temperature MFFT is between 2～0 ℃.
In an embodiment of the present invention, said freeze-thaw stabiliser is oxyethane (EO) the block AEO of long-chain; Chemical structure
N=90～100 wherein.
In a preference, this freeze-thaw stabiliser can be the mixing cpd that any one or any several kinds of compounds mix with arbitrary proportion in the said structure; Its physical and chemical index is a HLB value 18～21, pH value 6～8, density 1.08 ± 0.01g/cm3.
In an embodiment of the present invention, said coatings additive(s) is selected from dispersion agent, wetting agent, skimmer, thickening material, pH regulator agent, mould inhibitor, sanitas or its combination.
In an embodiment of the present invention, the total content of volatile chemical is not higher than 0.01 weight % in the said coatings additive(s), in the coatings additive(s) gross weight.
In an embodiment of the present invention, do not contain volatile chemical in the said coatings additive(s).
In a preference, said auxiliary agent does not contain beyond the VOC, does not contain APEO (TX10) yet, does not contain limited heavy metal.
In an embodiment of the present invention, each part by weight of forming is in the said coatings additive(s): dispersion agent: wetting agent: skimmer: thickening material: pH regulator agent: mould inhibitor: sanitas=(1.0 ± 0.1): (0.5 ± 0.1): (0.9 ± 0.1): (2.5 ± 0.2): (0.2 ± 0.05): (0.5 ± 0.1): (0.1 ± 0.05).
In an embodiment of the present invention, described dispersion agent is a ROHM homopolymer ammonium salt;
Or described skimmer is silicone based skimmer, mineral oil defoaming agent or its combination;
Described thickening material is polyurethanes rheology control agent, cellulose thickener or its combination; Or
Said pH regulator agent is an organic alcohol amine.
In a preference, described thickening material is polyurethanes rheology control agent (solid content is 20%, and is colourless translucent, presents similar Newtonian liquid figure); Cellulose thickener (pure-natural biological stable form Mierocrystalline cellulose; Said composition is the commercially available prod of Aqulon, trade(brand)name Natursol 250HBR).
The interior wall coating that possesses multiple environmental improvement function that second aspect of the present invention provides a kind of compsn of the present invention to make.
The third aspect of the invention provides the preparation method who possesses the interior wall coating of multiple environmental improvement function of the present invention, comprises the steps:
Each component of compsn of the present invention is mixed, obtain the said interior wall coating that possesses multiple environmental improvement function.
In an embodiment, the said interior wall coating that possesses multiple environmental improvement function is made by the method that may further comprise the steps:
A) pure water is put into dispersion tank, rotating speed is controlled at 700～800 rev/mins;
B) dispersion agent, wetting agent, skimmer, thickening material are slowly added in the dispersion tank successively disperseed 15 minutes;
C) add various color stuffings then successively;
D) add the pH regulator agent then, stirred 1 minute;
E) then rotating speed is controlled at 1400～1500 rev/mins, disperseed 20 minutes;
F) add a small amount of pure water then, lower the temperature;
G) add filmogen (emulsion) then;
H) add freeze-thaw stabiliser and bamboo charcoal particulate then;
I) adding skimmer, mould inhibitor, sanitas then successively disperseed 2 minutes;
J) add pure water at last and regulate viscosity, promptly process finished product to the viscosity that is fit to.
Detailed Description Of The Invention
The inventor is through extensive and deep research, through improving preparation technology, do not reduce the performance of coating when having obtained low VOC and have more how new environmental-protecting performance high-grade functional paint.Accomplished the present invention on this basis.
Among this paper, said " ultralow volatility " is meant that the VOC value is lower than 0.01 weight % of total coating weight.The regulation of VOC value and mensuration see also China's " HJ/T201-2005 environmental labelling product technical requirements water-borne coatings ".
The inner-wall coating composition that possesses multiple environmental improvement function that is provided among this paper meets bacterinertness and the antibiotic durability index of " antibiotic paint " HG/T-3950-2007.
Among this paper, the water of acceptance amount " can " be meant the not concrete restriction of the consumption of said water, only otherwise goal of the invention of the present invention is produced restriction to get final product.For example, its consumption includes but not limited to 25 ± 5 weight parts.
Among this paper, " volatility solubility promoter " is meant the solubility promoter that the VOC value is had a negative impact; Said " volatility film coalescence aid " is meant the film coalescence aid that the VOC value is had a negative impact; " volatile chemical " is meant the chemical substance that the VOC value is had a negative impact.The regulation of VOC value and mensuration see also China's " HJ/T201-2005 environmental labelling product technical requirements water-borne coatings ".
Below detail to various aspects of the present invention: specify like nothing, various raw materials of the present invention all can obtain through commercially available; Or prepare according to the ordinary method of this area.Only if definition or explanation are arranged in addition, the same meaning that all specialties used herein and scientific words and those skilled in the art are familiar with.Any in addition with the institute similar content of putting down in writing or the equalization method and material all can be applicable in the inventive method.
A kind of inner-wall coating composition that possesses multiple environmental improvement function of the present invention, said compsn mainly is made up of following components by weight percent:
Filmogen 35.0～40.0 weight parts; Wherein said filmogen is the PEMULEN TR2 emulsion that contains the bamboo charcoal particulate of stable complexation, complexing degree >=5% of bamboo charcoal particulate wherein, preferably >=7%, more preferably >=10%.
Freeze-thaw stabiliser 0.4～0.6 weight part, said freeze-thaw stabiliser are oblong link oxidative ethane (EO) block AEO;
Color stuffing 35.0～40.0 weight parts;
Coatings additive(s) 5～7 weight parts;
Bamboo charcoal 1～15 weight part;
Water that can the acceptance amount;
The total content of volatile chemical (VOC) is not higher than 0.01 weight % in the said compsn, in composition total weight.
Filmogen
The emulsion particle diameter of said filmogen is distributed as 100～120nm, the solid constituent between 47～53%, bamboo charcoal particulate complexing degree >=5%; Preferably >=7%; More preferably >=10%, second-order transition temperature Tg is between 5～7 ℃, and minimum film-forming temperature MFFT is between 2～0 ℃.
In a preference, the emulsion particle diameter of said filmogen is distributed as 100～120nm, median size 105nm, and the solid constituent is between 47～53%; Bamboo charcoal particulate complexing degree>=5%, preferably>=7%, more preferably>=10%; Residual monomer≤100ppm; TVOCs≤100ppm, second-order transition temperature Tg are between 5～7 ℃, and minimum film-forming temperature MFFT is between 2～0 ℃.
The bamboo charcoal particulate
Bamboo charcoal is to be starting material with the mao bamboon more than 3 years; A kind of absorbent charcoal material that forms through the destructive distillation of high temperature anaerobic; Compare with common absorbent charcoal material; Bamboo charcoal has not only kept the high absorption capacity of absorbent charcoal material itself, also possesses to regulate atmospheric moisture, discharge negative ion, produce far infrared rays shielding electromagnetic wave, sterilization, the function of environment that the adsorption of the obnoxious flavoures such as formaldehyde in other source etc. improved simultaneously.Employed bamboo charcoal is particulate bamboo charcoal material among the present invention.
In a preference, the granularity of the bamboo charcoal particulate that the present invention is used is preferably 1 micron smaller or equal to 10 microns, is 0.5 micron, is 100 nanometers, is 50 nanometers, is 40 nanometers, is 30 nanometers, is 20 nanometers, is most preferably 10 nanometers.
Freeze-thaw stabiliser
Said freeze-thaw stabiliser is oxyethane (EO) the block AEO of long-chain; Chemical structure
N=90～100 wherein.
In a preference, this freeze-thaw stabiliser can be the mixing cpd that any one or any several kinds of compounds mix with arbitrary proportion in the said structure; Its physical and chemical index is a HLB value 18～21, pH value 6～8, density 1.08 ± 0.01g/cm3.
Coatings additive(s)
In an embodiment of the present invention, said coatings additive(s) is selected from dispersion agent, skimmer, thickening material, pH regulator agent, mould inhibitor, sanitas or its combination.Can also contain the auxiliary agent that other coating are suitable for, like wetting agent.
In an embodiment, each part by weight of forming is in the said coatings additive(s): dispersion agent: wetting agent: skimmer: thickening material: pH regulator agent: mould inhibitor: sanitas=(1.0 ± 0.1): (0.5 ± 0.1): (0.9 ± 0.1): (2.5 ± 0.2): (0.2 ± 0.05): (0.5 ± 0.1): (0.1 ± 0.05).
In an embodiment, the total content of volatile chemical is not higher than 0.01 weight % in the said coatings additive(s), in the coatings additive(s) gross weight.
In an embodiment, do not contain volatile chemical in the said coatings additive(s).
In a preference, said auxiliary agent does not contain beyond the VOC, does not contain APEO (TX10) yet, does not contain limited heavy metal.
Dispersion agent
Dispersion agent generally is divided into two big types in the rubber-emulsion paint: inorganic dispersant and organic dispersing agent.Use in the inorganic dispersant maximum be the polyphosphoric acid salt, like Sodium hexametaphosphate 99, Potassium tripolyphosphate, sodium polyphosphate and TKPP.The mechanism of its effect is through hydrogen bond and chemisorption, plays the electrostatic repulsion stabilization.Organic dispersing agent comprises polyacrylate (being mainly the ammonium polyacrylate salt), PS/maleic acid salt, polyisobutene/maleic acid salt etc.Their characteristics are, produce strong absorption or anchorage effect at pigment and filling surface, and it is sterically hindered to form to have long molecular chain, and the end of the chain has water-soluble, and what have also auxilliaryly has electrostatic repulsion, reaches stable result.Make dispersion agent have the size of good dispersion effect with regard to necessary strict control molecular weight, molecular weight is too little, and is sterically hindered not enough, and molecular weight too conference generation flocculates.
In an embodiment, described dispersion agent is a ROHM homopolymer ammonium salt.
Skimmer
Employed emulsion in the rubber-emulsion paint, the dispersion agent skimmer, thickening material, raw materials such as sterilant all contain tensio-active agent.Therefore very easily produce foam.Foam has hindered the dispersion of color stuffing, has reduced usage ratio of equipment, has prolonged the production cycle, and more serious is to have brought many defectives to filming, like shrinkage cavity, and pin hole etc.It is generally acknowledged that froth breaking can be divided into following four processes: 1, skimmer is adsorbed onto the foamy surface; 2, skimmer is penetrated into the foamy surface; 3, skimmer spreads on foam surface, and the adsorption surface promoting agent; 4, the broken bubble of foam tension imbalance.Should have following characteristic according to this mechanism skimmer: 1, the surface tension of skimmer is less than the surface tension that needs froth breaking liquid self; 2, the solubleness in needing the liquid of froth breaking is as far as possible little; 3, good dispersiveness to be arranged.4, can not react with the liquid of want froth breaking, can not influence the force of cohesion of pigment in the coating and the stability of emulsion.5, stronger diffusive force to be arranged.6, can not influence the performance of finished product rubber-emulsion paint.7, unpleasant odor can not be arranged.
In an embodiment of the present invention, described skimmer is silicone based skimmer, mineral oil defoaming agent or its combination.More preferably, described skimmer is the use of arranging in pairs or groups of silicone based skimmer and mineral oil defoaming agent, with the froth breaking stability (for example 1: 1～2 part by weight) that guarantees to provide permanent fast.
Thickening material
The coating thickener kind is a lot, mainly contains four types of cellulose family, polyacrylate-type thickeners, polyurethanes thickening material and inorganic thickening agents.
Cellulose thickener has methylcellulose gum, CMC 99.5, Natvosol, Vltra tears etc., and wherein the most frequently used is Natvosol.The thickening mechanism of cellulose thickener cellulose thickener is that hydrophobic main chain and ambient water molecule pass through hydrogen bond association, has improved the fluid volume of polymkeric substance itself, has reduced the free active of particle space, thereby has improved the system viscosity.Also can realize the raising of viscosity through the winding of molecular chain, showing as static and low the shearing has high viscosity, is low-viscosity under high-shear.This is that cellulose molecular chain is in state of disarray and makes system present high viscosity because when static state or low shearing speed; And when high shear rates, molecule parllel is made ordered arrangement in flow direction, is easy to mutual slip, so the system viscosity degradation.
Polyacrylate thickeners can be divided into two kinds basically: a kind of is water miscible polyacrylate; Another kind is the homopolymer or the copolymer emulsion thickening material of vinylformic acid, methylacrylic acid, and this thickening material itself is a tart, must be neutralized to pH8～9 with alkali or ammoniacal liquor and just can reach thickening effectiveness, is also referred to as propylene soda acid swelling thickening material.Its thickening mechanism of polyacrylic thickening material is that thickening material is soluble in water, and through the same sex electrostatic repulsion of carboxylic acid ion, molecular chain is stretched to bar-shaped by spirrillum, thereby has improved the viscosity of water.It also forms reticulated structure through between emulsion particle and pigment, building bridge in addition, has increased the viscosity of system.
The polyurethanes thickening material is a non-ionic type associative thickener newly developed in recent years.A.J.Reuvers has done detailed research to the thickening mechanism of association type polyurethanes thickening material.Introduced hydrophilic radical and hydrophobic grouping in the molecular structure of this type thickening material, made it demonstrate the character of certain tensio-active agent.When its concentration of aqueous solution surpasses a certain certain concentration, form micella, micella and polymer particle associate and form reticulated structure, and the system viscosity is increased.Several micellas of branch subband have on the other hand reduced the transport property of water molecules, and the water viscosity is also improved.This type thickening material not only exerts an influence to the rheological of coating, and and adjacent latex particle between exist and interact, if this effect is too strong, cause the latex layering easily.
Inorganic thickening agent is one type of water-swelling and form thixotropic gel mineral.Mainly contain wilkinite, attapulgite, pure aluminium silicate etc., wherein wilkinite is the most commonly used.The inorganic thickening agent wilkinite is a kind of layered silicate, and the suction after forms flocculent substance, has good suspension and dispersiveness, is combined into colloid with an amount of water, in water, can discharge charged corpuscle, increases the system viscosity.
In an embodiment of the present invention, described thickening material is polyurethanes rheology control agent, cellulose thickener or its compsn.Particularly for example, described thickening material is commercial polyurethane class rheology control agent (solid content is 20%, and is colourless translucent, presents similar Newtonian liquid figure), commercially available cellulose thickener (pure-natural biological stable form Mierocrystalline cellulose; Available from the commercially available prod of Aqulon, trade(brand)name Natursol250HBR).
The pH regulator agent
The not concrete restriction of pH regulator agent of the present invention, only otherwise goal of the invention of the present invention is produced restriction get final product, for example employing can be used for the pH regulator agent of acrylic coating.
In an embodiment of the present invention, described pH regulator agent is the organic alcohol amine neutralizing agent.
Other auxiliary agents
The present invention can also contain other coatings additive(s)s, only otherwise goal of the invention of the present invention is produced restriction to get final product, and for example mould inhibitor, sanitas etc.
The not concrete restriction of mould inhibitor of the present invention and sanitas, only otherwise goal of the invention of the present invention is produced restriction to get final product.
The consumption of mould inhibitor is 0～1 weight part, preferred 0.1～1 weight part.
The consumption of sanitas is 0～1 weight part, preferred 0.1～1 weight part.
Water
The consumption of water is enough to make said compsn to dilute.Usually be diluted to and make the viscosity of compsn reach necessary requirement to get final product.100-106KU for example is according to GB/T-9756-2008 interior wall coating national standard.Usually, required amount of dilution includes but not limited between 20～30 weight parts.
Possesses interior wall coating of multiple environmental improvement function and preparation method thereof
The preparation method who possesses the interior wall coating of multiple environmental improvement function of the present invention comprises the steps:
Each component of the described compsn of preceding text first aspect is mixed, obtain the said interior wall coating that possesses multiple environmental improvement function.
In an embodiment, the said interior wall coating that possesses multiple environmental improvement function is made by the method that may further comprise the steps:
A) pure water is put into dispersion tank, rotating speed is controlled at 700～800 rev/mins;
B) dispersion agent, wetting agent, skimmer, thickening material are slowly added in the dispersion tank successively disperseed 15 minutes;
C) add various color stuffings then successively;
D) add the pH regulator agent then, stirred 1 minute;
E) then rotating speed is controlled at 1400～1500 rev/mins, disperseed 20 minutes;
F) add a small amount of pure water then, lower the temperature;
G) add filmogen (emulsion) then;
H) add freeze-thaw stabiliser and bamboo charcoal particulate then;
I) adding skimmer, mould inhibitor, sanitas then successively disperseed 2 minutes;
J) add pure water at last and regulate viscosity, promptly process finished product to the viscosity that is fit to.
Table 1 shown in detail respectively form in the interior wall coating of the present invention raw-material title, specifically the effect and weight percent.
Table 1
Advantage of the present invention
(1) provided by the invention possess multiple environmental improvement function inner-wall coating composition on the basis of original low volatility inner-wall coating composition, added the bamboo charcoal particulate, make said low volatility inner-wall coating composition under the impregnable prerequisite of original coating property, possess multiple environmental improvement function.And; Compare with the more existing inner-wall coating composition that possesses the environmental improvement function; Just do not possess certain single function, but possessed multiple environmental improvement function simultaneously, can satisfy the multiple needs under different clients and the different service condition simultaneously.
(2) the bamboo charcoal source is abundant, cheap, price steadiness; In inner-wall coating composition, add the bamboo charcoal particulate and not only do not bring the obvious increase on the cost; And compare with the more existing inner-wall coating composition that possesses the environmental improvement function, cost is lower, has tangible price advantage.
Other aspects of the present invention are because the disclosure of this paper is conspicuous to those skilled in the art.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.The experimental technique of unreceipted actual conditions in the following example is measured according to national standard usually.If there is not a corresponding national standards, then carry out according to general international standard, normal condition or according to the condition that manufacturer advises.Unless otherwise indicated, otherwise all umbers are weight part, and all per-cents are weight percentage, and described polymericular weight is a number-average molecular weight.
Only if definition or explanation are arranged in addition, the same meaning that all specialties used herein and scientific words and those skilled in the art are familiar with.Any in addition with the institute similar content of putting down in writing or the equalization method and material all can be applicable in the inventive method.
Press following standard testing material property:
" exterior wall coating material of synthetic resin emulsion national standard (GB) GB/T9755-2001 ".
Further specify the present invention through embodiment and Comparative Examples below.
In following enforcement and Comparative Examples;, investigation possesses the basic coating property of the interior wall coating of multiple environmental improvement function, for example freeze-thaw stability, film-forming properties; And the environmental improvement function, for example bacterinertness, anti-radiation, negative ion discharge and to the adsorptivity of obnoxious flavour etc.
Embodiment 1～3
Be ready to prepare the starting material of product of the present invention according to the weight percent among table 1a～c.
At first pure water is put into dispersion tank, rotating speed is controlled at 800～1000 rev/mins; Dispersion agent, wetting agent, skimmer, thickening material slowly added in the dispersion tank successively disperseed 15 minutes; Add various color stuffings then successively; Add the PH regulator then, stirred 1 minute; Then rotating speed is controlled at 1500～1800 rev/mins, disperseed 20 minutes; Add a small amount of pure water then, lower the temperature; Add filmogen then; Add freeze-thaw stabiliser and bamboo charcoal particulate then; Adding skimmer, mould inhibitor, in-can preservation agent then successively disperseed 2 minutes; Add pure water at last and regulate viscosity, promptly process finished product to (100～102) KU.
To product of the present invention carry out water-fast, alkaline-resisting, sticking power, anti-contamination, washable wiping, cold cracking, bacterinertness, anti-radiation, negative ion discharges and to the performance tests such as adsorptivity of obnoxious flavour; Wherein the salient features test is with reference to GB/T9756-2008 interior wall coating national standard; The assessment of coating smell is assessed according to the coating smell judgement patented process (number of patent application 200710152159.5) of ippon application; The VOC testing method is with reference to GB18582-2008; The antibacterial and mouldproof property testing is with reference to HG/T-3950-2007 " paint film antibacterial and mouldproof testing method ", and the mensuration with reference to GBZ/T 147-2002X ray protection material fade performance is measured in radioprotective.
Test result is seen table 2.
Table 2
*: use the analog value in the Pretesting room;
*: sprayed coating is tested analog value MV in the room after 2 days, 4 days, 10 days.
By above-mentioned table 2 pair product of the present invention carry out water-fast, alkaline-resisting, sticking power, scrubbing resistance, bacterinertness, anti-low-temperature cracking,, anti-radiation, negative ion discharges and to performance test data such as the adsorptivity explanation of obnoxious flavour no matter on single performance; Still on over-all properties; The excellent product performance that possesses the high-grade inner wall coating of multiple environmental improvement function of the present invention, product odour is low, zero VOC, sticking power is good and possess outstanding feature such as multiple environmental improvement function simultaneously makes product become the suitable widely used novel environment friendly antibiotic paint of interior wall.
The above is merely preferred embodiment of the present invention; Be not in order to limit essence technology contents scope of the present invention; Essence technology contents of the present invention is broadly to be defined in the claim scope of application, and if any technological entity or method that other people accomplish are defined identical with the claim scope of application; Also or a kind of change of equivalence, all will be regarded as and be covered by among this claim scope.
All documents in that the present invention mentions are all quoted as a reference in this application, are just quoted such as a reference separately as each piece document.Should be understood that in addition that after having read foregoing of the present invention those skilled in the art can do various changes or modification to the present invention, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (10)
1. an inner-wall coating composition that possesses multiple environmental improvement function is characterized in that, said compsn mainly is made up of following components by weight percent:
Filmogen 35.0～40.0 weight parts; Wherein said filmogen is the PEMULEN TR2 emulsion with bamboo charcoal particulate stable complexation;
Freeze-thaw stabiliser 0.4～0.6 weight part, said freeze-thaw stabiliser are oblong link oxidative ethane (EO) block AEO;
Color filler 35.0～40.0 weight parts;
Coatings additive(s) 5～7 weight parts;
Bamboo charcoal particulate 1～15 weight part;
Water that can the acceptance amount;
The total content of volatile chemical (VOC) is not higher than 0.01 weight % in the said compsn, in composition total weight.
2. compsn as claimed in claim 1 is characterized in that, the complexing degree of said bamboo charcoal particulate is more than 5%, preferably more than 7%, more preferably more than 10%.
3. according to claim 1 or claim 2 compsn is characterized in that the granularity of said bamboo charcoal particulate is preferably 1 micron smaller or equal to 10 microns; Being 0.5 micron, is 100 nanometers, is 50 nanometers, is 40 nanometers; Being 30 nanometers, is 20 nanometers, is most preferably 10 nanometers.
4. like each described compsn in the claim 1 to 3; It is characterized in that; The emulsion particle diameter of said filmogen is distributed as 100～120nm, and between 5～7 ℃, minimum film-forming temperature MFFT is between 2～0 ℃ at second-order transition temperature Tg between 47～53% for the solid constituent.
5. like each described compsn in the claim 1 to 4, it is characterized in that said freeze-thaw stabiliser is oxyethane (EO) the block AEO of long-chain; Chemical structure
N=90～100 wherein.
6. like each described compsn in the claim 1 to 5; It is characterized in that; Said coatings additive(s) is selected from dispersion agent, wetting agent, skimmer, thickening material, pH regulator agent, mould inhibitor, sanitas or its combination, and each part by weight of forming is in the preferably said coatings additive(s): dispersion agent: wetting agent: skimmer: thickening material: pH regulator agent: mould inhibitor: sanitas=(1.0 ± 0.1): (0.5 ± 0.1): (0.9 ± 0.1): (2.5 ± 0.2): (0.2 ± 0.05): (0.5 ± 0.1): (0.1 ± 0.05).
7. like each described compsn in the claim 1 to 6; It is characterized in that the total content of volatile chemical is not higher than 0.01 weight % in the said coatings additive(s), in the coatings additive(s) gross weight; Preferably, do not contain volatile chemical in the said coatings additive(s).
8. like claim 6 or 7 described compsns, it is characterized in that,
Described dispersion agent is a ROHM homopolymer ammonium salt;
Or described skimmer is silicone based skimmer, mineral oil defoaming agent or its combination;
Described thickening material is polyurethanes rheology control agent, cellulose thickener or its combination; Or
Said pH regulator agent is an organic alcohol amine.
9. interior wall coating that contains just like the multiple environmental improvement function of possessing of each described compsn in the claim 1 to 8.
10. a preparation method who possesses the interior wall coating of multiple environmental improvement function as claimed in claim 9 comprises the steps:
Each component of each described compsn in the claim 1 to 8 is mixed, obtain the said interior wall coating that possesses multiple environmental improvement function.
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| CN2012101965845A CN102702891A (en) | 2012-06-14 | 2012-06-14 | Inner wall coating composition with multiple environmental improvement functions |
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Application publication date: 20121003 |