CN110734673A - antirust paint for iron furniture and preparation method thereof - Google Patents
antirust paint for iron furniture and preparation method thereof Download PDFInfo
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- CN110734673A CN110734673A CN201911101514.5A CN201911101514A CN110734673A CN 110734673 A CN110734673 A CN 110734673A CN 201911101514 A CN201911101514 A CN 201911101514A CN 110734673 A CN110734673 A CN 110734673A
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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
- C09D143/00—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 containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
- C09D143/04—Homopolymers or copolymers of monomers containing silicon
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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
-
- 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
- C09D5/08—Anti-corrosive paints
- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
- C09D5/084—Inorganic compounds
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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
- C09D7/20—Diluents or solvents
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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
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
Abstract
The invention discloses iron furniture antirust coatings, which comprise, by weight, 36-42 parts of styrene-acrylic emulsion, 3-4 parts of active antirust pigment, 16-20 parts of filler, 1-2 parts of antirust agent, 60-70 parts of deionized water, 5-7 parts of cosolvent, 2-3 parts of dispersant, 1-2 parts of defoamer and 2-4 parts of film-forming additive, and also discloses a preparation method of the antirust coating.
Description
Technical Field
The invention belongs to the technical field of antirust paint preparation, and particularly relates to iron furniture antirust paint and a preparation method thereof.
Background
The manufacturing of the wooden furniture consumes a lot of forest resources, so the metal furniture is slowly replacing the wooden furniture, the increase of material cost caused by the lack of wood resources is relieved, the forest resources are protected, the metal material is easy to obtain, the metal furniture has the appearance effect similar to that of the wooden furniture after surface treatment, the material is durable and corrosion-resistant, and has -extensive application space.
The Chinese patent with the patent number of CN201610495192.7 discloses metal furniture coatings, which are prepared from, by weight, 25-35 parts of polyurethane acrylate, 25-35 parts of anionic acrylic resin, 3-8 parts of isobutyl triethoxysilane, 3-8 parts of castor oil, 10-15 parts of tourmaline powder, 3-5 parts of zinc powder, 3-5 parts of graphene, 5-13 parts of a photoinitiator, 7-12 parts of an active diluent, 3-5 parts of a thickening agent, 0.3-0.6 part of a leveling agent, 0.2-0.5 part of an anti-settling agent and 1-2.5 parts of an antifoaming agent, wherein the coatings have antirust performance, durability and waterproof performance by adding the anionic acrylic resin, the isobutyl triethoxysilane and the graphene.
Disclosure of Invention
The invention aims to provide iron furniture antirust paint and a preparation method thereof, wherein organic silicon modified styrene-acrylic emulsion is used as a main film forming substance of the paint, deionized water is used as a diluent, and active antirust pigment has the antirust performance of zinc phosphate, and can improve the activity of zinc phosphate and the compatibility of a substrate and deionized water through the introduction of elements such as aluminum, calcium and the like, so that the antirust performance of the paint is improved, antirust agents are added into the paint, active groups on the surfaces of the antirust agents have strong adsorption capacity and can be adsorbed on metal surfaces, long carbon chain hydrocarbon groups are also included in antirust agent molecules and are vertical to the metal surfaces, layers of adsorption protective films which are arranged very tightly can be formed, the metal corrosion is avoided, steps are carried out, and the invention obtains water-based antirust paint, meets the requirement of environmental protection and is suitable for the antirust treatment of furniture surfaces.
The purpose of the invention can be realized by the following technical scheme:
antirust paint for iron furniture, which comprises the following raw materials, by weight, 36-42 parts of styrene-acrylic emulsion, 3-4 parts of active antirust pigment, 16-20 parts of filler, 1-2 parts of antirust agent, 60-70 parts of deionized water, 5-7 parts of cosolvent, 2-3 parts of dispersant, 1-2 parts of defoaming agent and 2-4 parts of film-forming assistant;
the antirust coating is prepared by the following steps:
, sequentially grinding the color paste by using the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 3000-4000r/min, and the grinding time is controlled to be 30-60min until the fineness of the slurry is less than or equal to 25 mu m, so as to obtain the water-based anti-rust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming assistant into the aqueous antirust color paste at a stirring speed of 800-1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
, the active anti-rust pigment is prepared by the following method:
(1) putting phosphoric acid and aluminum hydroxide into a reactor, adding deionized water, and then heating for reaction until the aluminum hydroxide is completely dissolved to obtain an aluminum dihydrogen phosphate solution;
(2) adding zinc oxide, calcium carbonate and deionized water into a sand mill, grinding and pulping to serve as base solution, slowly adding the solution prepared in the step into the base solution for reaction, adding the pigment after the reaction is finished for 25-30min, grinding, discharging and drying to obtain the active antirust pigment.
, for each 1g of aluminum hydroxide in step (1), 3.8g of phosphoric acid was added and 20g of deionized water was added.
Further , 2.1g of calcium carbonate, 10g of deionized water, 16.5g of aluminum dihydrogen phosphate solution and 20g of pigment were added per 1g of zinc oxide in step (2).
Further , the rust inhibitor is prepared by the following method:
(1) placing a magnetic stirring device, a water separator and a thermometer with corresponding specifications in a 250mL three-neck flask, then adding 14.8g of phosphoric acid, 55.4g of diethanolamine and 60mL of xylene, reacting for 8h, and then obtaining the xylene and a small amount of water by adopting a reduced pressure distillation mode;
(2) adding 72mL of tetrahydrofuran to extract unreacted diethanolamine for three times, removing residual tetrahydrofuran, and performing vacuum drying to obtain a phosphate intermediate;
(3) 26.2g of phosphate intermediate, 17.0g of dimethyl adipate and 0.42g of KOH are weighed and added into a reaction device, the temperature is set to 135 ℃, the reaction time is 6-7h, vacuum is opened after the reaction is finished, excessive dimethyl adipate and a small amount of methanol are treated by reduced pressure distillation to obtain viscous liquid, and then the viscous liquid is dried at 80 ℃ in a vacuum environment to prepare the antirust agent.
A preparation method of iron furniture antirust paint comprises the following steps:
, sequentially grinding the color paste by using the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 3000-4000r/min, and the grinding time is controlled to be 30-60min until the fineness of the slurry is less than or equal to 25 mu m, so as to obtain the water-based anti-rust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming assistant into the aqueous antirust color paste at a stirring speed of 800-1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
The invention has the beneficial effects that:
the pigment adopted by the antirust coating is subjected to activation treatment, the zinc phosphate used by the pigment in the traditional mode has extremely low solubility in water, low activity and slow effect, and has a phenomenon of flash rust when used in a water-based system, and the antirust performance often cannot meet the requirement; according to the invention, phosphoric acid, aluminum hydroxide, zinc oxide and calcium carbonate are subjected to hydrothermal synthesis reaction to prepare calcium zinc phosphate, elements such as calcium, aluminum and the like are introduced into the traditional zinc phosphate, so that the activity of the calcium zinc phosphate can be enhanced, and the obtained pigment not only can prevent rust, but also has high activity, so that the rust resistance of the coating is enhanced;
the antirust coating is added with the antirust agent, the synthesized antirust agent is an amide phosphate organic matter, and the molecule of the synthesized antirust agent contains-NH2Amide group, phosphorus esterIn addition, the antirust agent molecules also comprise long carbon chain hydrocarbon groups which are vertical to the metal surface and can form layers of closely arranged adsorption protective films to avoid metal corrosion, so that the antirust effect is further improved ;
the antirust paint of the invention adopts organosilicon modified styrene-acrylic emulsion as a main film forming material of the paint, deionized water is used as a diluent, wherein active antirust pigment not only has the antirust property of zinc phosphate, but also can improve the activity of the paint by introducing elements such as aluminum, calcium and the like, so as to improve the compatibility with a substrate and the deionized water, so as to improve the antirust property of the paint, in addition, kinds of antirust agents are added into the paint, active groups on the surface of the antirust agents have strong adsorption capacity and can be adsorbed on a metal surface, long carbon chain hydrocarbon groups are also included in molecules of the antirust agents and are vertical to the metal surface, so that layers of closely arranged adsorption protective films can be formed, the metal corrosion is avoided, the antirust effect is further improved by , and kinds of water-based antirust paint obtained by the invention meets the requirement of environmental protection and is suitable for the antirust.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only partial embodiments , rather than complete embodiments.
antirust paint for iron furniture, which comprises the following raw materials, by weight, 36-42 parts of styrene-acrylic emulsion, 3-4 parts of active antirust pigment, 16-20 parts of filler, 1-2 parts of antirust agent, 60-70 parts of deionized water, 5-7 parts of cosolvent, 2-3 parts of dispersant, 1-2 parts of defoaming agent and 2-4 parts of film-forming assistant;
the styrene-acrylic emulsion is organic silicon modified styrene-acrylic emulsion;
the cosolvent is propylene glycol, isopropanol or ethanol;
the dispersant is polyisobutylene diacid salt;
the defoaming agent is an organic silicon defoaming agent;
the filler is wollastonite, talcum powder or barium sulfate;
the active anti-rust pigment is prepared by the following method:
(1) putting phosphoric acid and aluminum hydroxide into a reactor, adding deionized water, and then heating for reaction until the aluminum hydroxide is completely dissolved to obtain an aluminum dihydrogen phosphate solution;
3.8g of phosphoric acid is added into every 1g of aluminum hydroxide, and 20g of deionized water is added;
(2) adding zinc oxide, calcium carbonate and deionized water into a sand mill, grinding and pulping to serve as base solution, slowly adding the solution prepared in the step into the base solution for reaction, adding pigment after the reaction is finished for 25-30min, grinding, discharging and drying to prepare the active antirust pigment;
2.1g of calcium carbonate, 10g of deionized water, 16.5g of aluminum dihydrogen phosphate solution and 20g of pigment are added to every 1g of zinc oxide;
the zinc phosphate has extremely low solubility in water, low activity and slow effect, has a 'flash rust' phenomenon when used in an aqueous system, and often cannot meet the requirement on rust resistance; the calcium phosphate zinc is prepared by carrying out hydrothermal synthesis reaction on phosphoric acid, aluminum hydroxide, zinc oxide and calcium carbonate, elements such as calcium, aluminum and the like are introduced into the traditional zinc phosphate, the activity of the calcium phosphate zinc can be enhanced, and the obtained pigment not only can prevent rust, but also has high activity, so that the rust-proof performance of the coating is enhanced;
the rust inhibitor is prepared by the following method:
(1) placing a magnetic stirring device, a water separator and a thermometer with corresponding specifications in a 250mL three-neck flask, then adding 14.8g of phosphoric acid, 55.4g of diethanolamine and 60mL of xylene (the xylene is used as a water-carrying agent) into the three-neck flask, reacting for 8h, and then obtaining xylene and a small amount of water by adopting a reduced pressure distillation mode;
(2) adding 72mL of tetrahydrofuran to extract unreacted diethanolamine for three times, removing residual tetrahydrofuran, and performing vacuum drying to obtain a phosphate intermediate;
(3) weighing 26.2g of phosphate ester intermediate, 17.0g of dimethyl adipate and 0.42g of KOH, adding the phosphate ester intermediate, the 17.0g of dimethyl adipate and the 0.42g of KOH into a reaction device, setting the temperature to be 135 ℃, reacting for 6-7h, starting vacuum after the reaction is finished, treating excessive dimethyl adipate and a small amount of methanol by using reduced pressure distillation to obtain viscous liquid, and drying the viscous liquid at the temperature of 80 ℃ in a vacuum environment to prepare the antirust agent;
the synthesized antirust agent is an amide phosphate organic matter, and molecules of the synthesized antirust agent contain-NH2In addition, the antirust agent molecule also comprises long carbon chain hydrocarbon which is vertical to the metal surface and can form layers of closely arranged adsorption protective films, so that the corrosion of the metal is avoided, and the antirust effect is improved by steps;
the preparation method of the coating comprises the following steps:
, sequentially grinding the color paste by using the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 3000-4000r/min, and the grinding time is controlled to be 30-60min until the fineness of the slurry is less than or equal to 25 mu m, so as to obtain the water-based anti-rust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming assistant into the aqueous antirust color paste at a stirring speed of 800-1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
Example 1
antirust paint for iron furniture, which comprises the following raw materials, by weight, 36 parts of styrene-acrylic emulsion, 3 parts of active antirust pigment, 16 parts of filler, 1 part of antirust agent, 60 parts of deionized water, 5 parts of cosolvent, 2 parts of dispersant, 1 part of defoaming agent and 2 parts of film-forming assistant;
the coating is prepared by the following steps:
, sequentially grinding the deionized water, the dispersing agent, the defoaming agent, the active antirust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled at 3000r/min, and the grinding time is controlled at 60min, so as to obtain the water-based antirust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming auxiliary agent into the aqueous antirust color paste at a stirring speed of 800r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
Example 2
antirust paint for iron furniture, which comprises the following raw materials, by weight, 39 parts of styrene-acrylic emulsion, 3.5 parts of active antirust pigment, 18 parts of filler, 1.5 parts of antirust agent, 65 parts of deionized water, 6 parts of cosolvent, 2.5 parts of dispersant, 1.5 parts of defoaming agent and 3 parts of film-forming assistant;
the coating is prepared by the following steps:
, sequentially grinding the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the weight parts, wherein the grinding speed is controlled to be 3500r/min, and the grinding time is controlled to be 45min, so that the water-based anti-rust color paste can be prepared;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming auxiliary agent into the aqueous antirust color paste at a stirring speed of 900r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
Example 3
antirust paint for iron furniture, which comprises the following raw materials, by weight, 42 parts of styrene-acrylic emulsion, 4 parts of active antirust pigment, 20 parts of filler, 2 parts of antirust agent, 70 parts of deionized water, 7 parts of cosolvent, 2-3 parts of dispersant, 2 parts of defoaming agent and 4 parts of film-forming assistant;
the coating is prepared by the following steps:
, sequentially grinding the deionized water, the dispersing agent, the defoaming agent, the active antirust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 4000r/min, and the grinding time is controlled to be 30min, so that the water-based antirust color paste can be prepared;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming auxiliary agent into the aqueous antirust color paste at a stirring speed of 1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
Comparative example 1
The active pigment in the raw material of the example 1 is changed into the common pigment, and the rest raw materials and the preparation process are not changed.
Comparative example 2
The raw materials of the antirust agent in the raw materials of the embodiment 1 are removed, and the rest raw materials and the preparation process are unchanged.
The coatings obtained in examples 1 to 3 and comparative examples 1 to 2 were subjected to the following property tests:
coating each coating on tinplate, and drying in a vacuum drying oven at 25 ℃ for 3d to obtain a coating film;
flash rust test (grade 1 represents best, grade 5 represents worst); the adhesion of the coating is tested according to the standard GB/T1720-; testing the water resistance of the coating according to GB/T1733-93, and recording the whitening and foaming time of the iron sheet; testing the salt spray resistance according to a GB/T1771-2007 neutral salt spray test;
as can be seen from the above table, the anti-flash rust properties of the coating films prepared by the coatings of examples 1-3 reach grade 1, which is the best anti-flash rust effect, the adhesion force reaches grade 1, which indicates that the coating films have better adhesion force, the water-resistant time and the neutral salt spray resistant time are respectively 109h and 78-80h, which indicates that the coating films prepared by the invention have good water resistance and salt spray resistance, which indicates that the coatings prepared by the invention have good adhesion property, water resistance, salt spray resistance and anti-flash rust property, which is property excellent antirust coating, and the combination of comparative example 1 indicates that the pigment can enhance activity and improve the antirust property of the coating after being activated, and the combination of comparative example 2 indicates that the antirust property of the coating can be effectively improved by adding the antirust agent.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1, antirust paints for iron furniture, which is characterized by comprising the following raw materials, by weight, 36-42 parts of styrene-acrylic emulsion, 3-4 parts of active antirust pigment, 16-20 parts of filler, 1-2 parts of antirust agent, 60-70 parts of deionized water, 5-7 parts of cosolvent, 2-3 parts of dispersant, 1-2 parts of defoamer and 2-4 parts of film-forming assistant;
the antirust coating is prepared by the following steps:
, sequentially grinding the color paste by using the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 3000-4000r/min, and the grinding time is controlled to be 30-60min until the fineness of the slurry is less than or equal to 25 mu m, so as to obtain the water-based anti-rust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming assistant into the aqueous antirust color paste at a stirring speed of 800-1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
2. The kinds of iron furniture antirust paint of claim 1, wherein the active antirust pigment is prepared by the following method:
(1) putting phosphoric acid and aluminum hydroxide into a reactor, adding deionized water, and then heating for reaction until the aluminum hydroxide is completely dissolved to obtain an aluminum dihydrogen phosphate solution;
(2) adding zinc oxide, calcium carbonate and deionized water into a sand mill, grinding and pulping to serve as base solution, slowly adding the solution prepared in the step into the base solution for reaction, adding the pigment after the reaction is finished for 25-30min, grinding, discharging and drying to obtain the active antirust pigment.
3. The antirust paint for iron-made furniture according to claim 2, wherein 3.8g of phosphoric acid was added per 1g of aluminum hydroxide in step (1), and 20g of deionized water was added.
4. The antirust paint for iron furniture according to claim 2, wherein 2.1g calcium carbonate, 10g deionized water, 16.5g aluminum dihydrogen phosphate solution and 20g pigment are added to 1g zinc oxide in step (2).
5. The kinds of antirust coatings for iron-made furniture according to claim 1, wherein the antirust is prepared by the following method:
(1) placing a magnetic stirring device, a water separator and a thermometer with corresponding specifications in a 250mL three-neck flask, then adding 14.8g of phosphoric acid, 55.4g of diethanolamine and 60mL of xylene, reacting for 8h, and then obtaining the xylene and a small amount of water by adopting a reduced pressure distillation mode;
(2) adding 72mL of tetrahydrofuran to extract unreacted diethanolamine for three times, removing residual tetrahydrofuran, and performing vacuum drying to obtain a phosphate intermediate;
(3) 26.2g of phosphate intermediate, 17.0g of dimethyl adipate and 0.42g of KOH are weighed and added into a reaction device, the temperature is set to 135 ℃, the reaction time is 6-7h, vacuum is opened after the reaction is finished, excessive dimethyl adipate and a small amount of methanol are treated by reduced pressure distillation to obtain viscous liquid, and then the viscous liquid is dried at 80 ℃ in a vacuum environment to prepare the antirust agent.
6, preparation method of iron furniture antirust paint, characterized by comprising the following steps:
, sequentially grinding the color paste by using the deionized water, the dispersing agent, the defoaming agent, the active anti-rust pigment and the filler according to the parts by weight, wherein the grinding speed is controlled to be 3000-4000r/min, and the grinding time is controlled to be 30-60min until the fineness of the slurry is less than or equal to 25 mu m, so as to obtain the water-based anti-rust color paste;
and secondly, sequentially adding the styrene-acrylic emulsion, the cosolvent, the antirust agent and the film-forming assistant into the aqueous antirust color paste at a stirring speed of 800-1000r/min, uniformly mixing and stirring, and filtering by using a 200-mesh filter screen to obtain the antirust coating.
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| CN111761301A (en) * | 2020-05-28 | 2020-10-13 | 海宁赛维尼机电有限公司 | Method for manufacturing game machine |
| CN112343901A (en) * | 2020-11-27 | 2021-02-09 | 安徽银禾木业有限公司 | Solid wood furniture board connecting piece |
| CN115260845A (en) * | 2022-09-02 | 2022-11-01 | 中国江西国际经济技术合作有限公司 | Anti-aging processing method for building construction bearing structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111761301A (en) * | 2020-05-28 | 2020-10-13 | 海宁赛维尼机电有限公司 | Method for manufacturing game machine |
| CN111761301B (en) * | 2020-05-28 | 2022-03-01 | 海宁赛维尼机电有限公司 | Method for manufacturing game machine |
| CN112343901A (en) * | 2020-11-27 | 2021-02-09 | 安徽银禾木业有限公司 | Solid wood furniture board connecting piece |
| CN112343901B (en) * | 2020-11-27 | 2022-03-22 | 安徽银禾木业有限公司 | Solid wood furniture board connecting piece |
| CN115260845A (en) * | 2022-09-02 | 2022-11-01 | 中国江西国际经济技术合作有限公司 | Anti-aging processing method for building construction bearing structure |
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