CN109181434A - A kind of environment-friendly type coating and preparation method thereof - Google Patents

A kind of environment-friendly type coating and preparation method thereof Download PDF

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CN109181434A
CN109181434A CN201811112020.2A CN201811112020A CN109181434A CN 109181434 A CN109181434 A CN 109181434A CN 201811112020 A CN201811112020 A CN 201811112020A CN 109181434 A CN109181434 A CN 109181434A
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molecular screen
agent
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杨新革
高振强
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Linyi University
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Linyi University
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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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

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  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Plant Pathology (AREA)
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Abstract

The invention discloses a kind of environment-friendly type coatings and preparation method thereof, belong to technical field of coatings.Coating of the present invention is with aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO2Composite slurry, diatomite, silane coupling agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are prepared as a raw material.The present invention is by molecular sieve powder and TiO2Mixture slurry is made in compounding, while using Ce (NO3)3Molecular sieve is modified, it is made to cooperate with TiO2The toxic and harmful gas such as formaldehyde degradation by photocatalytic oxidation process, benzene, the use of compounding addition diatomite, silane coupling agent, so that coating of the present invention has the effect of purification air, sterilizing deodoring.It is of the invention gained coating high in environmental protection, low in cost, more healthy selection is provided for green home decoration, and preparation process is simple, it is easy to spread.

Description

A kind of environment-friendly type coating and preparation method thereof
Technical field
The invention belongs to technical field of coatings, in particular to a kind of environment-friendly type coating and preparation method thereof.
Background technique
With the raising of global environmental consciousness, demand of the people to environment-friendly type coating is more more and more urgent.Using traditional molten Agent paint can to human health and environmental danger, especially indoors in use, the lasting volatilization of the pernicious gases such as benzene, formaldehyde, Directly endanger the health and lives safety of people.Formaldehyde is a kind of volatile organic compound, colourless, have special odor, slightly overweights sky Gas, it is soluble easily in water.Formaldehyde has a major impact human health, has strong impulse to eyes, respiratory tract, human body mucous membrane and skin Effect；Acute poisoning can lead to shed tears, runny nose, the symptoms such as cough, cause various respiratory tract disease；Chronic inhalation of low concentration can be led Cause unrelenting headache, inability, insomnia etc.；Chronic skin contact will lead to dermatitis, to the respiratory system, digestive system and maincenter of human body Nervous system generates adverse effect, causes lung and liver immunologic dysfunction.
The poisonous and harmful substances such as formaldehyde can be all generated in the coating such as woodenware, plank, furniture, wall in family room, so And more frighteningly, it is generally the deenergized period of formaldehyde three to 15 years, therefore develop a kind of coating of safety and environmental protection to existing It is particularly important for house ornamentation.
Summary of the invention
To solve problems of the prior art, the present invention provides a kind of environment-friendly type coating, its coating itself first is pacified Loopful is protected, and poisonous and harmful substance is not generated, next is also equipped with the effect of removing the poisonous and harmful substances such as formaldehyde, benzene.Institute of the present invention The technical solution adopted is that:
A kind of environment-friendly type coating, including component and its parts by weight it is as follows: 40-60 parts of aqueous acrylic emulsion, lightweight carbon Sour calcium 10-15 parts, modified molecular screen-TiO210-15 parts of composite slurry, 5-10 parts of diatomite, 1-3 parts of silane coupling agent, film forming 0.5-3 parts of agent, 0.1-0.5 parts of wetting agent, 0.5-1 parts of defoaming agent, 0.8-1.2 parts of surfactant, 0.5-0.9 parts of preservative and 20-40 parts of water；Modified molecular screen-the TiO2Composite slurry is prepared by following methods:
A. by the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 is controlled using nitric acid PH is placed it in 3-5 and is stirred 2-4h on magnetic stirrer, obtains modified molecular screen slurry；
B. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
C. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 3~5:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
D. modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material Under the conditions of the Ceramic Balls of 3~5:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen- TiO2Composite slurry.
The aqueous acrylic emulsion is hybrid cross-linked grafted propylene yogurt liquid, organosilicon grafted propylene yogurt liquid, organic Any one in fluorine grafted propylene yogurt liquid.
The defoaming agent is selected from one of ethyl alcohol, silicone emulsion.
Any a kind in glycerol, propylene glycol, Arlacel-80, Arlacel-60, tween -90, Tween-80 of the wetting agent.
Any one of the preservative in sodium propionate, isothiazolinone, benzoisothiazolinone；The film forming agent Selected from acrylic resin modified casein filming agent, acrylic resin polyurethane copolymerization resin, polyethylene, acrylate modified fourth Any a kind during diene resin, polyurethane-modified cellulose nitrate film forming agent, glass fibre are plain；The surfactant is 12 The mixture of sodium alkyl sulfate and fatty acid glycerine fat, wherein the quality of the lauryl sodium sulfate and fatty acid glycerine fat Ratio is 1:3.
Present invention simultaneously provides a kind of preparation methods of environment-friendly type coating, comprising the following steps:
(1) modified molecular screen-TiO2The preparation of composite slurry:
By the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 controls PH using nitric acid It in 3-5, places it in and stirs 2-4h on magnetic stirrer, obtain modified molecular screen slurry；
Hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, and dispersion is equal It is even stand-by at hydroxyethyl cellulose solution；
By nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ratio of grinding media to material For ball milling 2h under the conditions of the Ceramic Balls of 3~5:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
Modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material 3 Under the conditions of the Ceramic Balls of~5:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2 Composite slurry；
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO are weighed in proportion2Composite slurry, diatomite, silicon Alkane coupling agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are sufficiently stirred Mix mixing, for speed of agitator in 1000~2000r/min, incorporation time is 30-60 minutes, when mixed material temperature reaches 110~ Blowing is into low speed mixer at 120 DEG C, and speed of agitator is in 300~500r/min, when mixed material temperature reaches 40~45 DEG C When discharging to get environment-friendly type coating of the present invention.
The partial size of 5A sieve particle is 10-50 μm in step (1), nano-TiO2The partial size of powder is 100-200nm.
Added silane coupling agent is aqueous silane coupling agent, and trade mark KH-450 is purchased from Suzhou Pa Tena environmental protection green wood Expect Co., Ltd.The diatomite particle partial size is not more than 10 μm.
The utility model has the advantages that
1, the present invention is water paint, does not add a large amount of organic solvent, is avoided from the root since organic solvent is waved Send out bring pollution.
It 2, is harmless CO by Degradation Formaldehyde using photocatalysis technology2And H2O, this method reaction condition is mild, energy consumption It is low, and secondary pollution will not be generated.TiO2The OH generated in the photocatalytic process can be used to degradation of contaminant, Er Qieqi Potential energy is aoxidized by most of microorganism killing.To strengthen TiO2Photocatalysis performance, the present invention is by molecular sieve powder and TiO2It is multiple It is configured to mixture slurry, combines molecular sieve to the adsorption function and TiO of pernicious gas2Photocatalysis performance, while use Ce (NO3)3Molecular sieve is modified, it is made to cooperate with TiO2The toxic and harmful gas such as formaldehyde degradation by photocatalytic oxidation process, benzene enhance its catalysis Performance.Diatomite surface has a large amount of silicone hydroxyl, and has the presence of hydrogen bond, this makes diatomite have powerful surface living Property and adsorption capacity not only can be with pernicious gases such as assist absorption formaldehyde, benzene, also as the supplement of molecular sieve adsorption function Deodorization and other effects of drying can be played, the use of silane coupling agent is cooperated, so that diatomite and modified molecular screen-TiO2Composite pulp Body can be uniformly distributed, and give full play to its absorption, catalytic function, reach the final purpose of purification air, sterilizing deodoring.The present invention It is gained coating high in environmental protection, low in cost, more healthy selection is provided for green home decoration, and preparation process is simple, be easy to push away Extensively.
Specific embodiment
Technical scheme is described further combined with specific embodiments below, but not limited to this.
Embodiment 1
A kind of environment-friendly type coating, including component and its parts by weight it is as follows: 40 parts of aqueous acrylic emulsion, precipitated calcium carbonate 10 parts, modified molecular screen-TiO210 parts of composite slurry, 5 parts of diatomite, 1 part of silane coupling agent, 0.5 part of film forming agent, wetting agent 0.1 part, 0.5 part of defoaming agent, 0.8 part of surfactant, 0.5 part of preservative and 20 parts of water；Modified molecular screen-the TiO2It is compound Slurry is prepared by following methods:
A. by the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 is controlled using nitric acid PH is placed it in 3-5 and is stirred 2h on magnetic stirrer, obtains modified molecular screen slurry；
B. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
C. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 3:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
D. modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material Under the conditions of the Ceramic Balls of 3:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2 Composite slurry；
The aqueous acrylic emulsion is hybrid cross-linked grafted propylene yogurt liquid.
The defoaming agent is ethyl alcohol.
The wetting agent is Tween-80.
The preservative is isothiazolinone；The film forming agent is the modified casein filming agent of acrylic resin；The table Face activating agent is the mixture of lauryl sodium sulfate and fatty acid glycerine fat, wherein the lauryl sodium sulfate and fat The mass ratio of acid glyceride is 1:3.
Present invention simultaneously provides a kind of preparation methods of environment-friendly type coating, comprising the following steps:
(1) preparation of modified molecular screen-TiO2 composite slurry:
By the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 controls PH using nitric acid It for 3-5, places it in and stirs 2h on magnetic stirrer, obtain modified molecular screen slurry；
Hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, and dispersion is equal It is even stand-by at hydroxyethyl cellulose solution；
By nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ratio of grinding media to material For ball milling 2h under the conditions of the Ceramic Balls of 3:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
Modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material is Under the conditions of the Ceramic Balls of 3:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2It is multiple Close slurry.
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO are weighed in proportion2Composite slurry, diatomite, silicon Alkane coupling agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are sufficiently stirred Mixing is mixed, for speed of agitator in 1000r/min, incorporation time is 30 minutes, is put when mixed material temperature reaches 110~120 DEG C Expect in low speed mixer, speed of agitator is in 300r/min, and when mixed material temperature reaches 40~45 DEG C, discharging is to get this hair The bright environment-friendly type coating.
The partial size of 5A sieve particle is 10-50 μm in step (1), nano-TiO2The partial size of powder is 100-200nm.
Added silane coupling agent is aqueous silane coupling agent, and trade mark KH-450 is purchased from Suzhou Pa Tena environmental protection green wood Expect Co., Ltd.The diatomite particle partial size is not more than 10 μm.
Embodiment 2
A kind of environment-friendly type coating, including component and its parts by weight it is as follows: 60 parts of aqueous acrylic emulsion, precipitated calcium carbonate 15 parts, modified molecular screen-TiO215 parts of composite slurry, 10 parts of diatomite, 3 parts of silane coupling agent, 3 parts of film forming agent, wetting agent 0.5 Part, 1 part of defoaming agent, 1.2 parts of surfactant, 0.9 part of preservative and 40 parts of water；Modified molecular screen-the TiO2Composite slurry It is to be prepared by following methods:
A. by the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 is controlled using nitric acid PH is placed it in 3-5 and is stirred 4h on magnetic stirrer, obtains modified molecular screen slurry；
B. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
C. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 4:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
D. modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material Under the conditions of the Ceramic Balls of 5:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2 Composite slurry.
The aqueous acrylic emulsion is Organic fluoride grafted propylene yogurt liquid.
The defoaming agent is silicone emulsion.
The wetting agent is Arlacel-80.
The preservative is benzoisothiazolinone；The film forming agent is polyurethane-modified cellulose nitrate film forming agent；It is described Surfactant is the mixture of lauryl sodium sulfate and fatty acid glycerine fat, wherein the lauryl sodium sulfate and rouge The mass ratio of fat acid glyceride is 1:3.
Present invention simultaneously provides a kind of preparation methods of environment-friendly type coating, comprising the following steps:
(1) modified molecular screen-TiO2The preparation of composite slurry:
By the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 controls PH using nitric acid It in 3-5, places it in and stirs 4h on magnetic stirrer, obtain modified molecular screen slurry；
Hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, and dispersion is equal It is even stand-by at hydroxyethyl cellulose solution；
By nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ratio of grinding media to material For ball milling 2h under the conditions of the Ceramic Balls of 5:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
Modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material is Under the conditions of the Ceramic Balls of 5:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, it is multiple to obtain modified molecular screen-TiO2 Close slurry.
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO are weighed in proportion2Composite slurry, diatomite, silicon Alkane coupling agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are sufficiently stirred Mixing is mixed, for speed of agitator in 2000r/min, incorporation time is 60 minutes, is put when mixed material temperature reaches 110~120 DEG C Expect in low speed mixer, speed of agitator is in 500r/min, and when mixed material temperature reaches 40~45 DEG C, discharging is to get this hair The bright environment-friendly type coating.
The partial size of 5A sieve particle is 10-50 μm in step (1), nano-TiO2The partial size of powder is 100-200nm.
Added silane coupling agent is aqueous silane coupling agent, and trade mark KH-450 is purchased from Suzhou Pa Tena environmental protection green wood Expect Co., Ltd.The diatomite particle partial size is not more than 10 μm.
Embodiment 3
A kind of environment-friendly type coating, including component and its parts by weight it is as follows: 50 parts of aqueous acrylic emulsion, precipitated calcium carbonate 13 parts, modified molecular screen-TiO213 parts of composite slurry, 8 parts of diatomite, 2 parts of silane coupling agent, 2 parts of film forming agent, wetting agent 0.3 Part, 0.8 part of defoaming agent, 1 part of surfactant, 0.7 part of preservative and 30 parts of water；Modified molecular screen-the TiO2Composite slurry It is to be prepared by following methods:
A. by the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 is controlled using nitric acid PH is placed it in 3-5 and is stirred 3h on magnetic stirrer, obtains modified molecular screen slurry；
B. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
C. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 4:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
D. modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material Under the conditions of the Ceramic Balls of 4:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2 Composite slurry.
The aqueous acrylic emulsion is organosilicon grafted propylene yogurt liquid.
The defoaming agent is silicone emulsion.
The wetting agent is from glycerol.
The preservative is sodium propionate；The film forming agent is acrylate modified butadiene resin；The surfactant For the mixture of lauryl sodium sulfate and fatty acid glycerine fat, wherein the lauryl sodium sulfate and fatty acid glycerine fat Mass ratio be 1:3.
Present invention simultaneously provides a kind of preparation methods of environment-friendly type coating, comprising the following steps:
(1) modified molecular screen-TiO2The preparation of composite slurry:
By the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 controls PH using nitric acid It in 3-5, places it in and stirs 3h on magnetic stirrer, obtain modified molecular screen slurry；
Hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, and dispersion is equal It is even stand-by at hydroxyethyl cellulose solution；
By nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ratio of grinding media to material For ball milling 2h under the conditions of the Ceramic Balls of 4:1, nano titanium dioxide paste body is obtained, is dried for standby for 100 DEG C in drying box；
Modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material is Under the conditions of the Ceramic Balls of 4:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2It is multiple Close slurry.
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO are weighed in proportion2Composite slurry, diatomite, silicon Alkane coupling agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are sufficiently stirred Mixing is mixed, for speed of agitator in 1500r/min, incorporation time is 50 minutes, is put when mixed material temperature reaches 110~120 DEG C Expect in low speed mixer, speed of agitator is in 400r/min, and when mixed material temperature reaches 40~45 DEG C, discharging is to get this hair The bright environment-friendly type coating.
The partial size of 5A sieve particle is 10-50 μm in step (1), nano-TiO2The partial size of powder is 100-200nm.
Added silane coupling agent is aqueous silane coupling agent, and trade mark KH-450 is purchased from Suzhou Pa Tena environmental protection green wood Expect Co., Ltd.The diatomite particle partial size is not more than 10 μm.
Comparative example 1
A kind of environment-friendly type coating, including component and its parts by weight it is as follows: 40 parts of aqueous acrylic emulsion, precipitated calcium carbonate 10 parts, TiO210 parts of slurry, 5 parts of diatomite, 1 part of silane coupling agent, 0.5 part of film forming agent, 0.1 part of wetting agent, defoaming agent 0.5 Part, 0.8 part of surfactant, 0.5 part of preservative and 20 parts of water；The TiO2Slurry is prepared by following methods:
A. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
B. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 3:1, nano titanium dioxide paste body is obtained.
The aqueous acrylic emulsion is hybrid cross-linked grafted propylene yogurt liquid.
The defoaming agent is ethyl alcohol.
The wetting agent is Tween-80.
The preservative is isothiazolinone；The film forming agent is the modified casein filming agent of acrylic resin；The table Face activating agent is the mixture of lauryl sodium sulfate and fatty acid glycerine fat, wherein the lauryl sodium sulfate and fat The mass ratio of acid glyceride is 1:3.
Present invention simultaneously provides a kind of preparation methods of environment-friendly type coating, comprising the following steps:
(1)TiO2The preparation of slurry:
A. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, dispersion It is uniformly stand-by at hydroxyethyl cellulose solution；
B. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, in ball material Than ball milling 2h under the conditions of the Ceramic Balls for 3:1, nano titanium dioxide paste body is obtained.
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, TiO2 slurry, diatomite, silane coupling agent, film forming are weighed in proportion Agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are thoroughly mixed, and stirring turns For speed in 1000r/min, incorporation time is 30 minutes, and when mixed material temperature reaches 110~120 DEG C, blowing is to low speed mixer In, when mixed material temperature reaches 40~45 DEG C, discharging is to get environment-friendly type coating of the present invention.
The partial size of 5A sieve particle is 10-50 μm in step (1), nano-TiO2The partial size of powder is 100-200nm.
Added silane coupling agent is aqueous silane coupling agent, and trade mark KH-450 is purchased from Suzhou Pa Tena environmental protection green wood Expect Co., Ltd.The diatomite particle partial size is not more than 10 μm.
Environment-friendly type coating described in this comparative example, the difference with embodiment 1 are by modified molecular screen-TiO2Composite slurry Replace with general T iO2Slurry, without Ce (NO3)3It is modified, rest part is all the same.
Comparative example 2
A kind of environment-friendly type coating, composition of raw materials forms and the preparation method is the same as that of Example 1, is modified the difference is that not including wherein Molecular sieve-TiO2The part of composite slurry and its preparation.
Comparative example 3
A kind of environment-friendly type coating, composition of raw materials composition and the preparation method is the same as that of Example 1, unlike not diatomite add Add.
Comparative example 4
A kind of environment-friendly type coating, composition of raw materials forms and the preparation method is the same as that of Example 1, the difference is that not having silane coupling agent Addition.
Effect test
It is tested using coating obtained by 1-3 of the embodiment of the present invention, comparative example 1-4, tests its PARA FORMALDEHYDE PRILLS(91,95), triphen (benzene, first Benzene, dimethylbenzene), the absorption elimination effects of volatility VOC gas.According to JC/T 1074-2008, (function of purifying indoor air is applied Cover materials purification performance), GB18582-2008 (limits of harmful substances in indoor decorating and refurnishing materials interior wall coating) standard wants It asks and is tested and calculated.Obtained experimental result is as shown in the table:
The test of 1 coating property of table
Coating prepared by the present invention itself does not discharge poisonous and harmful substance not only, but also it discharges indoor material Gas has good catharsis.It can reach 93% or more to the purifying rate of especially PARA FORMALDEHYDE PRILLS(91,95).This is because the present invention applies Modified molecular screen-the TiO with Degradation Formaldehyde function added in material2Composite slurry is cooperateed with diatomite, silane coupling agent It plays a role, so that its adsorption function, catalytic degradation function is obtained optimal release, effectively purify the air of a room.
It should be noted that above-described embodiment is only the section Example for realizing preferred embodiment of the invention, Er Feiquan Portion's embodiment.Obviously, it is based on the above embodiment of the present invention, those of ordinary skill in the art are not making creative work Under the premise of other all embodiments obtained, should fall within the scope of the present invention.

Claims (7)

1. a kind of environment-friendly type coating, which is characterized in that as follows including component and its parts by weight: aqueous acrylic emulsion 40-60 Part, 10-15 parts of precipitated calcium carbonate, modified molecular screen-TiO210-15 parts of composite slurry, 5-10 parts of diatomite, silane coupling agent 1- 3 parts, 0.5-3 parts of film forming agent, 0.1-0.5 parts of wetting agent, 0.5-1 parts of defoaming agent, 0.8-1.2 parts of surfactant, preservative 0.5-0.9 parts and water 20-40 parts；Modified molecular screen-the TiO2Composite slurry is prepared by following methods:
A. by the Ce (NO of 0.2mol/L3)35A sieve particle is added in aqueous solution, solid-to-liquid ratio 1:10 is existed using nitric acid control PH 3-5 is placed it in and is stirred 2-4h on magnetic stirrer, obtains modified molecular screen slurry；
B. hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, is uniformly dispersed It is stand-by at hydroxyethyl cellulose solution；
C. by nano-TiO2Powder is added in hydroxyethyl cellulose solution according to the ratio that solid-to-liquid ratio is 1:2, is 3 in ratio of grinding media to material Ball milling 2h under the conditions of the Ceramic Balls of~5:1, obtains nano titanium dioxide paste body, is dried for standby for 100 DEG C in drying box；
D. by modified molecular screen slurry, nano titanium dioxide paste body according to weight ratio 1:10 be added ball mill in, ratio of grinding media to material be 3~ Under the conditions of the Ceramic Balls of 5:1, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2It is multiple Close slurry.
2. environment-friendly type coating according to claim 1, which is characterized in that the aqueous acrylic emulsion is hybrid cross-linked grafting Acrylic emulsion, organosilicon grafted propylene yogurt liquid, any one in Organic fluoride grafted propylene yogurt liquid.
3. environment-friendly type coating according to claim 1, which is characterized in that the defoaming agent is in ethyl alcohol, silicone emulsion It is a kind of.
4. environment-friendly type coating according to claim 1, which is characterized in that the wetting agent is selected from glycerol, propylene glycol, sapn- 80, Arlacel-60, tween -90, any a kind in Tween-80.
5. environment-friendly type coating according to claim 1, which is characterized in that the preservative be selected from sodium propionate, isothiazolinone, Any one in benzoisothiazolinone；The film forming agent is selected from acrylic resin modified casein filming agent, acrylic acid tree Rouge polyurethane copolymerization resin, polyethylene, acrylate modified butadiene resin, polyurethane-modified cellulose nitrate film forming agent, glass Any a kind in cellulose；The surfactant is the mixture of lauryl sodium sulfate and fatty acid glycerine fat, wherein The mass ratio of the lauryl sodium sulfate and fatty acid glycerine fat is 1:3.
6. a kind of preparation method of environment-friendly type coating described in claim 1-5 any one, which is characterized in that be by following step Suddenly it is prepared:
(1) modified molecular screen-TiO2The preparation of nano particle:
By the Ce (NO of 0.2mol/L3)35A sieve particle, solid-to-liquid ratio 1:10, using nitric acid control PH in 3- are added in aqueous solution 5, it places it in and stirs 2-4h on magnetic stirrer, obtain modified molecular screen slurry；
Hydroxyethyl cellulose is weighed, is dissolved in the water of 3 times of weight, adjustment dispersing speed is 1100r/min, is uniformly dispersed into Hydroxyethyl cellulose solution is stand-by；
By nano-TiO2Powder according to solid-to-liquid ratio be 1:2 ratio be added in hydroxyethyl cellulose solution, ratio of grinding media to material be 3~ Ball milling 2h under the conditions of the Ceramic Balls of 5:1, obtains nano titanium dioxide paste body, is dried for standby for 100 DEG C in drying box；
Modified molecular screen slurry, nano titanium dioxide paste body are added in ball mill according to weight ratio 1:10, ratio of grinding media to material is 3~5: Under the conditions of 1 Ceramic Balls, adjustment revolving speed is 1200r/min, carries out dispersion ball milling 2-5h, obtains modified molecular screen-TiO2It is compound Slurry；
(2) preparation of coating:
Aqueous acrylic emulsion, precipitated calcium carbonate, modified molecular screen-TiO are weighed in proportion2Composite slurry, diatomite, silane are even Connection agent, film forming agent, wetting agent, defoaming agent, surfactant, preservative and water are put into high low speed mixer, are sufficiently stirred mixed It closes, speed of agitator is in 1000~2000r/min, and incorporation time is 30-60 minutes, when mixed material temperature reaches 110~120 DEG C When blowing into low speed mixer, speed of agitator goes out in 300~500r/min when mixed material temperature reaches 40~45 DEG C Material is to get environment-friendly type coating of the present invention.
7. the preparation method of environment-friendly type coating according to claim 6, which is characterized in that 5A sieve particle in step (1) Partial size be 10-50 μm, nano-TiO2The partial size of powder is 100-200nm.
CN201811112020.2A 2018-09-25 2018-09-25 A kind of environment-friendly type coating and preparation method thereof Pending CN109181434A (en)

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CN110079184A (en) * 2019-04-10 2019-08-02 浙江迈实科技有限公司 A kind of high-performance self-cleaning coating and preparation method thereof
CN111500142A (en) * 2020-06-05 2020-08-07 黄�俊 Environment-friendly latex paint capable of removing formaldehyde and preparation method thereof
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CN114316678A (en) * 2022-02-24 2022-04-12 盐城工业职业技术学院 Cloth painting water color pen coating ink and preparation method thereof
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CN110079184A (en) * 2019-04-10 2019-08-02 浙江迈实科技有限公司 A kind of high-performance self-cleaning coating and preparation method thereof
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CN114316678A (en) * 2022-02-24 2022-04-12 盐城工业职业技术学院 Cloth painting water color pen coating ink and preparation method thereof

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