CN110041767A - A kind of food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof - Google Patents
A kind of food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof Download PDFInfo
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- CN110041767A CN110041767A CN201910344226.6A CN201910344226A CN110041767A CN 110041767 A CN110041767 A CN 110041767A CN 201910344226 A CN201910344226 A CN 201910344226A CN 110041767 A CN110041767 A CN 110041767A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The present invention relates to a kind of food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof, it is formulated by following components according to following parts by weight: 15-20 parts of water, 0.2-0.3 parts of hydroxyethyl cellulose, 0.1-0.2 parts of water-based multifunctional additive, 0.5-0.6 parts of dispersing agent, 0.2-0.4 parts of wetting agent, 20-30 parts of titanium dioxide, 3-5 parts of coarse whiting, 2-4 parts of calcined kaolin, white bamboo charcoal powder 2-4 parts, 40-48 parts of lotion, 0.5-0.7 parts of antifreeze, 0.6-0.8 parts of defoaming agent, 0.1-0.3 parts of Antisepticize and mildew preventive, wherein, the lotion is Tg < 5 DEG C, without ammonium hydroxide, the polymer emulsion of coalescing agent and plastification solvent.The invention overcome poisonous and hazardous migration volume of chemical substances in existing interior wall paint vehicle and its coating and potassium permanganate consumption it is big, to the unsafe disadvantage of human body, it cooperates white bamboo charcoal powder by preferred emulsion component, the content of required addition auxiliary agent in paint components can be greatly reduced, have the advantages that migration amount of harmful substances and potassium permanganate consumption is small, safety coefficient is high.
Description
Technical field
The present invention relates to a kind of food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof, apply in paint vehicle field.
Background technique
Coating forms a film on the wall, and main to the contact harm of human body there are two factors: the harmfulness of substance or inside
Toxicity and human contact's degree that is known or inferring.The extent of migration of certain substance depend on material in the substance it is dense
Degree, in material matrix the substance combine or the thickness of the degree of flowing, material, with the property of material (it is dry, aqueous,
It is fattiness, acid, alcoholic), dissolubility of the substance in contactant, the temperature of contact duration and contact
Degree.
Consumer requires the various environmental-protecting performances of interior wall coating higher and higher in recent years.Interior wall coating generally requires at present
Be up to state standards the requirement of GB/T9756-2018, the physicochemical properties parameter such as this standard criterion covering of coating, scrubbing resistance,
But the indexs such as coating migration amount of harmful substances, potassium permanganate consumption are not provided.This result in children may contact,
It strokes or even licks and lick metope paint vehicle and touch chemical substance, so that some poisonous and hazardous chemical substances are moved to from metope
In virgin skin and mouth, causes safety problem, influence the health of children.Therefore it provides a kind of both meet GB/T9756-
The requirement of high-class product in 2018 standards, coating meet again in HJ2537-2014 standard about limits of harmful substances,
Requirement in GB4806.10-2016 standard about migration amount of harmful substances and potassium permanganate consumption, reach food contact grade,
The high food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof of safety coefficient oneself become when business urgently.
Summary of the invention
In order to overcome poisonous and hazardous migration volume of chemical substances in existing interior wall paint vehicle and its coating and potassium permanganate to disappear
Consumption is big, to the unsafe disadvantage of human body, and the present invention provides a kind of aqueous styrene-acrylic interior wall coating of food contact grade and its preparation side
Method cooperates white bamboo charcoal powder by preferred emulsion and other components, and containing for required addition auxiliary agent in paint components can be greatly reduced
Amount has the advantages that migration amount of harmful substances and potassium permanganate consumption is small, safety coefficient is high.
Technical scheme is as follows:
A kind of food contact aqueous styrene-acrylic interior wall coating of grade, is formulated by following components according to following parts by weight:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The low Tg value of lotion (5 DEG C of <) that uses of the food contact aqueous styrene-acrylic interior wall coating of grade of the application, without ammonium hydroxide, at
Film auxiliary agent and plastification solvent, it is only necessary to a small amount of antifreeze is added in component, most auxiliary agent volatilization is dissipated in film forming, is protected
The low concentration of the harmful substances such as solvent in formulation for coating material is demonstrate,proved.
White bamboo charcoal powder is a kind of adsorbent, is multi-cellular structure, has powerful adsorption capacity, to small molecule, alkene etc.
Substance has good adsorption effect.The BS-3006 of the white preferred cypress sage chemical industry of bamboo charcoal powder.White bamboo charcoal powder is added in this coating can be with
The monomers such as remaining alkene in lotion are adsorbed, the content of harmful substance in coating are further decreased, to reduce the height of follow-up coating
Potassium manganate consumption.
The food aqueous styrene-acrylic interior wall coating of contact grade and its coating of the application by preferred emulsion and white bamboo charcoal powder, other
The collocation of preferred ingredient type and usage ratio also meets under the premise of meeting standard GB/T9756-2018 high-class product requirement
About being closed in limits of harmful substances, food contact coating and coating standard GB4806.10-2016 in HJ2537-2014 standard
In the limitations such as migration amount of harmful substances, potassium permanganate consumption requirement, (the amount of migration, which is mainly used for investigating from coating, to be migrated to contact
The presence or absence of potential ability and migration substance in object toxicity.Potassium permanganate consumption mainly investigates having of migrating out from coating
Machine object, including polymer monomer alkene etc.).Define harmful substance gross migration in the GB4806.10-2016 standard otherwise
Greater than 10mg/cm2, potassium permanganate consumption be not more than 10mg/kg.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Change before appearance is relatively tested afterwards less, the amplitude of becoming larger≤10ku before viscosity is relatively tested, wherein the frost resistance test is first will
Mixture is in -6 DEG C -- and 4 DEG C of freezing 16-20h sequentially repeat two above step 2 time then at 20-25 DEG C of placement 5-7h later,
It finally observes its appearance and detects its viscosity in 23-27 DEG C.
Preferred emulsion has good frost resistance, allows the freeze proof agent content in whole paint components very low, can be big
Width reduces migration amount of harmful substances and potassium permanganate consumption, so that coating and coating are more environmentally-friendly, safe.The lotion is preferably made pottery
Family name's 331A lotion.
The partial size < 0.1um of the lotion.
It is preferred that high-content of the lotion cooperation lotion of low partial size in coating ensure that the compactness and physical property of paint film,
Will not occur shedding problem after coating film forming, and the coating of high compactness form a film in addition after the less residual of coating help
Agent further ensures the minimum the amount of migration of coating harmful substance.
The partial size of the coarse whiting is 800-1200 mesh.
The calcined kaolin preferably covers western 4000 mesh calcined kaolins, and calcium carbonate is preferably 1000 mesh coarse whiting of agriculture-countryside-farmer.
Preferred coarse whiting, calcined kaolin and calcium carbonate are while ensuring paint film intensity, with other in lotion and formulation for coating material
Component one, which works, ensure that the good compactness of paint film.
The hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
The hydroxyethyl cellulose preferably Asia is across imperial 250HBR.Hydroxyethyl cellulose is mainly its thickening, water conservation, improves painting
The effect for expecting adhesive force, can significantly improve workability and effect.
The water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
The preferable Tao Shi AMP-95 of the water-based multifunctional additive mainly rises the work of hydroxyethyl cellulose swelling thickening
With.
The dispersing agent is sodium polycarboxylate salt form dispersing agent.
The preferred Nuo Pu section SN5040 of the dispersing agent, effect are to reduce time and energy required for completing dispersion process, surely
Fixed dispersed pigments and fillers dispersion.
The wetting agent is environment-friendly type non-ionic emulsifier wetting agent, and the defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
The preferred sea profit 2405 of the wetting agent, the preferred Blackburn CF246 of defoaming agent and sea river A10.Wetting agent mainly rises
The effect for reducing pigments and fillers and substrate surface energy, can make pigments and fillers and substrate be easier to be soaked in water.Defoaming agent has been mainly foam inhibition
Effect, reduce high speed dispersion during foam generation.
The titanium dioxide is anatase thpe white powder or rutile type titanium white；The antifreeze is alkoxylate alcohol；Institute
Stating Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
Preferably one hundred benefit connection BLR-699 of the titanium dioxide, the preferred Asia of antifreeze produces FT68, the preferred Sol of Antisepticize and mildew preventive across dragon
ACTICIDEMV.Titanium dioxide provides high opacity, and the contrast ratio of coating is made to reach the high-class product requirement of GB/T9756-2018.It is anti-
Freeze agent and provide freezing and thawing performance for coating, makes it can short-term (one week) preservation a period of time at low temperature (< -5 DEG C).
It is smelly that Antisepticize and mildew preventive makes coating not go bad in prolonged storage (1 year).
The preparation method of the above-mentioned food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 350-550r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive,
Wherein the dosage of water is the 2/3-3/4 of water total weight, and stirs 1-5min, obtains mixed liquor I；
(2) under the revolving speed of 800-1000r/min, dispersing agent, wetting agent, defoaming agent, titanium are sequentially added into mixed liquor I
After white powder, calcined kaolin, white bamboo charcoal powder and coarse whiting, 15- is dispersed with stirring under the revolving speed of 1800-2000r/min later
20min, until fineness≤60 μm, obtain mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1000-1200r/min, lotion is sequentially added into mixed liquor II, antifreeze, defoaming agent, is prevented
Rotten mould inhibitor and water are dispersed with stirring 15-20min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming
Agent and remaining water.
The food contact that the preparation method of the food of the preferred steps and parameter contact aqueous styrene-acrylic interior wall coating of grade is prepared
More preferably, and harmful substance residual quantity is extremely low for the aqueous styrene-acrylic interior wall coating compactness of grade and physical property, so that coating and coating are more
Good environmental protection and safety.
Compared with prior art, the present patent application has the advantage that
1) the food contact aqueous styrene-acrylic interior wall coating of grade of the application passes through preferred emulsion and white bamboo charcoal powder, other preferred group
The collocation for dividing type and usage ratio, is not only able to satisfy the requirement of high-class product in GB/T9756-2018 standard, various physicochemical properties
It is outstanding, moreover it is possible at the same meet in HJ2537-2014 standard about coating in limits of harmful substances, GB4806.10-2016 standard and
The requirement such as migration amount of harmful substances, potassium permanganate consumption of coating, this is that other existing decorative paints are unable to reach；The painting
Material can trust that touching is stroked after being brushed to metope film forming, and migration amount of harmful substances is extremely low, it is basic do not have to worry to occur because
Children lick the healthy and safe problem of harm licking metope and causing；
2) preparation method of the food contact aqueous styrene-acrylic interior wall coating of grade can be further by preferred steps and parameter
Promote the environmental protection and safety of the food contact aqueous styrene-acrylic interior wall coating of grade.
Specific embodiment
Raw material information:
The water is ordinary tap water；
The hydroxyethyl cellulose is preferably Asia across imperial 250HBR；
The water-based multifunctional additive is preferably Tao Shi AMP-95；
The aqueous dispersion is preferably Nuo Pu section SN5040；
The wetting agent is preferably sea profit 2405；
The aqueous defoamer is preferably Blackburn CF246 and sea river A10；
The titanium dioxide is preferably one hundred benefit connection BLR-699；
The kaolin preferably covers western 4000 mesh calcined kaolins；
The calcium carbonate is preferably 1000 mesh coarse whiting of agriculture-countryside-farmer；
The white bamboo charcoal powder is preferably the BS-3006 of cypress sage's chemical industry
The lotion is preferably Tao Shi 331A lotion；
The antifreeze is preferably sub- across dragon production FT68；
The Antisepticize and mildew preventive is preferably Sol ACTICIDEMV.
Technical solution of the present invention is described in detail below with reference to embodiment.
Embodiment 1
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 10ku, wherein the frost resistance test is first will
Mixture is in -5 DEG C of freezing 18h, then at 23 DEG C of placement 6h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 26 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 1000 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 450r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 2min, obtains mixed liquor I；
(2) under the revolving speed of 900r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 17.5min under the revolving speed of 1900r/min later, until fineness≤60
μm, obtain mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1100r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 17.5min to being uniformly mixed, wherein the defoaming agent and water be respectively remaining defoaming agent and
Remaining water.
Embodiment 2
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 9ku, wherein the frost resistance test is first will
Mixture is in -6 DEG C of freezing 20h, then at 20 DEG C of placement 7h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 23 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 800 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 390r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 2min, obtains mixed liquor I；
(2) under the revolving speed of 900r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 20min under the revolving speed of 1800r/min later, until fineness≤60 μ
M obtains mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1200r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 18min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming agent and remaining
Under water.
Embodiment 3
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 8ku, wherein the frost resistance test is first will
Mixture is in -4 DEG C of freezing 16h, then at 25 DEG C of placement 5h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 27 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 1200 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 400r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 4min, obtains mixed liquor I；
(2) under the revolving speed of 900r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 16min under the revolving speed of 1900r/min later, until fineness≤60 μ
M obtains mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1000r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 16min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming agent and remaining
Under water.
Embodiment 4
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 9ku, wherein the frost resistance test is first will
Mixture is in -4 DEG C of freezing 20h, then at 20 DEG C of placement 5h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 23 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 900 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 350r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 5min, obtains mixed liquor I；
(2) under the revolving speed of 900r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 15min under the revolving speed of 1900r/min later, until fineness≤60 μ
M obtains mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1100r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 17.5min to being uniformly mixed, wherein the defoaming agent and water be respectively remaining defoaming agent and
Remaining water.
Embodiment 5
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 8ku, wherein the frost resistance test is first will
Mixture is in -6 DEG C of freezing 16h, then at 20 DEG C of placement 5h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 23 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 1100 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 350r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 1min, obtains mixed liquor I；
(2) under the revolving speed of 800r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 15min under the revolving speed of 1800r/min later, until fineness≤60 μ
M obtains mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1000r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 20min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming agent and remaining
Under water.
Embodiment 6
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 10ku, wherein the frost resistance test is first will
Mixture is in -4 DEG C of freezing 16h, then at 20 DEG C of placement 7h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 23 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 800 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 550r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 1min, obtains mixed liquor I；
(2) under the revolving speed of 1000r/min, dispersing agent, wetting agent, defoaming agent, titanium white are sequentially added into mixed liquor I
After powder, calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 18min under the revolving speed of 2000r/min later, until fineness≤
60 μm, obtain mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1100r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 15min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming agent and remaining
Under water.
Embodiment 7
A kind of food of the present invention contacts the aqueous styrene-acrylic interior wall coating of grade, is matched by following components according to following parts by weight
It makes:
Wherein, cinnamic acrylic ester of the lotion for Tg < 5 DEG C, without ammonium hydroxide, coalescing agent and plastification solvent is poly-
Close object lotion.
The lotion is using the lotion for meeting following frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, which tests through frost resistance
Variation is little before appearance relatively test afterwards, and the amplitude that becomes larger before viscosity relatively test is 10ku, wherein the frost resistance test is first will
Mixture is in -4 DEG C of freezing 18h, then at 23 DEG C of placement 6h, sequentially repeats two above step 2 time later, finally observes its appearance
And its viscosity is detected in 26 DEG C.
The partial size < 0.1um of preferred emulsion.
It is preferred that the partial size of coarse whiting is 1200 mesh.
It is preferred that hydroxyethyl cellulose is non-ionic water-soluble cellulose ether.
It is preferred that water-based multifunctional additive is 2-amino-2-methyl-1-propanol.
Preferred dispersants are sodium polycarboxylate salt form dispersing agent.
It is preferred that wetting agent is environment-friendly type non-ionic emulsifier wetting agent, preferably defoaming agent is non-ionic defoaming agent or organic
Silicon defoaming agent.
It is preferred that titanium dioxide is anatase thpe white powder or rutile type titanium white；It is preferred that antifreeze is alkoxylate alcohol；It is excellent
Selecting Antisepticize and mildew preventive is by 2-methyl-4-isothiazolin-3-one and 2- methyl-5-chloro -4- isothiazoline -3- ketone according to mass ratio
The mixture that example 3:1 is formulated.
The preparation method of the described food contact aqueous styrene-acrylic interior wall coating of grade includes the steps that following sequentially carrying out:
(1) under the revolving speed of 550r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 5min, obtains mixed liquor I；
(2) under the revolving speed of 800r/min, sequentially added into mixed liquor I dispersing agent, wetting agent, defoaming agent, titanium dioxide,
After calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 20min under the revolving speed of 1800r/min later, until fineness≤60 μ
M obtains mixed liquor II；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1000r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 15min to being uniformly mixed, wherein the defoaming agent and water are respectively remaining defoaming agent and remaining
Under water.
Test data:
According to the high-class product standard of GB/T9756-2018 " resin latex dope " finishing coat, HJ2537-2014
It is wanted in 60 °≤10 ° standards of " People's Republic of China's state environment protecting standard " interior wall coating gloss about limits of harmful substances
It asks and GB4806.10-2016 national food safety standard contacts the aqueous styrene-acrylic interior wall Paint Examples of grade to above-mentioned each food
Performance indexes and technical indicator tested, as a result as shown in following table:
Requirement in essential attribute and HJ2537-2014 about limits of harmful substances:
BG/T9756-2018 requirement:
GB4806.10-2016 requirement:
(note: contrast ratio --- it can illustrate the covering power of coating；Potassium permanganate consumption --- move in soak
Can by the substance of potassium permanganate oxidation amount (be largely the organic matter migrated out, including polymer monomer alkene etc., such as
Polycarbonate (PC) product may migrate out bisphenol A monomer, can lead to endocrine disorder, induce sex premature；Acrylic nitrile-butadiene two
Divinylic monomer may be migrated out in alkene-styrol copolymer (ABS) product, the certain density butadiene of Long Term Contact can go out
Now headache, dizziness, malaise, insomnia, dreaminess, failure of memory, nausea, cardio palmus shape))
As it can be seen that the indices of present embodiments meet even better than GB/T9756-2018 " synthetic resin cream
Liquid interior wall coating " the high-class product standard of finishing coat, HJ2537-2014 " People's Republic of China's state environment protecting standard " interior wall apply
Expect 60 °≤10 ° standards of gloss in about limits of harmful substances require and GB4806.10-2016 national food safety standard,
Middle harmful substance gross migration and potassium permanganate consumption are below the standard, and coating firmness is good, and shedding will not occur,
Safety coefficient is high.
Food contact aqueous styrene-acrylic interior wall coating of grade of the present invention and preparation method thereof is not only limited only to
Embodiment is stated, all any improvement or replacement according to the principle of the invention should all be within protection scope of the present invention.
Claims (10)
1. a kind of food contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: prepared by following components according to following parts by weight
It forms:
Wherein, the lotion is Tg < 5 DEG C, the styrene-acrylate polymer without ammonium hydroxide, coalescing agent and plastification solvent
Lotion.
2. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the lotion is using full
It is enough the lotion of lower frost resistance performance requirement:
Its antifreezing agent below of total mass ratio 1% is added into lotion, obtains mixture, the mixture is outer after frost resistance is tested
It sees and changes before relatively testing less, the amplitude of becoming larger≤10ku before viscosity is relatively tested, wherein the frost resistance test is first will mixing
Object is in -6 DEG C -- and 4 DEG C of freezing 16-20h sequentially repeat two above step 2 time, finally then at 20-25 DEG C of placement 5-7h later
It observes its appearance and detects its viscosity in 23-27 DEG C.
3. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the partial size of the lotion
< 0.1um.
4. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the partial size of the coarse whiting
For 800-1200 mesh.
5. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the hydroxy ethyl fiber
Element is non-ionic water-soluble cellulose ether.
6. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the water-soluble multifunctional
Auxiliary agent is 2-amino-2-methyl-1-propanol.
7. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the dispersing agent is poly-
Carboxylic acid sodium salt form dispersing agent.
8. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the wetting agent is ring
Guarantor's type non-ionic emulsifier wetting agent, the defoaming agent are non-ionic defoaming agent or organic silicon defoamer.
9. food according to claim 1 contacts the aqueous styrene-acrylic interior wall coating of grade, it is characterised in that: the titanium dioxide is sharp
Titanium-type titanium dioxide or rutile type titanium white；The antifreeze is alkoxylate alcohol；The Antisepticize and mildew preventive is by 2- methyl-
The mixture that 4- isothiazoline -3- ketone and 2- methyl-5-chloro -4- isothiazoline -3- ketone are formulated according to mass ratio 3:1.
10. the preparation method of -9 described in any item food contact aqueous styrene-acrylic interior wall coating of grade according to claim 1, feature
It is: includes the steps that following sequentially carrying out:
(1) under the revolving speed of 350-550r/min, Xiang Shuizhong sequentially adds hydroxyethyl cellulose and water-based multifunctional additive, wherein
The dosage of water is the 2/3-3/4 of water total weight, and stirs 1-5min, obtains mixed liquor I；
(2) under the revolving speed of 800-1000r/min, dispersing agent, wetting agent, defoaming agent, titanium white are sequentially added into mixed liquor I
After powder, calcined kaolin, white bamboo charcoal powder and coarse whiting, it is dispersed with stirring 15-20min under the revolving speed of 1800-2000r/min later,
To fineness≤60 μm, mixed liquor II is obtained；Wherein, the defoaming agent dosage is the 1/2-3/5 of defoaming agent total weight；
(3) under the revolving speed of 1000-1200r/min, it is anti-that lotion, antifreeze, defoaming agent, anti-corrosion are sequentially added into mixed liquor II
Mould dose and water are dispersed with stirring 15-20min to being uniformly mixed, wherein the defoaming agent and water be respectively remaining defoaming agent and
Remaining water.
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| CN201910344226.6A CN110041767A (en) | 2019-04-26 | 2019-04-26 | A kind of food contact aqueous styrene-acrylic interior wall coating of grade and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717582A (en) * | 2021-09-06 | 2021-11-30 | 湖北三棵树新材料科技有限公司 | Interior wall coating for enhancing projection effect and preparation method thereof |
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| CN103642324A (en) * | 2013-12-04 | 2014-03-19 | 青岛益群漆业集团有限公司 | White bamboo charcoal purifying multifunctional high-end mercerized wall finish |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113717582A (en) * | 2021-09-06 | 2021-11-30 | 湖北三棵树新材料科技有限公司 | Interior wall coating for enhancing projection effect and preparation method thereof |
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