CN110564228A - high-molecular water-based electrostatic coating material capable of being rapidly dried and preparation method thereof - Google Patents
high-molecular water-based electrostatic coating material capable of being rapidly dried and preparation method thereof Download PDFInfo
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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
- C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
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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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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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- 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
- C08K3/16—Halogen-containing compounds
- C08K2003/162—Calcium, strontium or barium halides, e.g. calcium, strontium or barium chloride
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- 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
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- C08K2003/3045—Sulfates
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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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a high-molecular water-based electrostatic coating material capable of being quickly dried, which comprises the following components (in percentage by mass): 25-28% of polytetrafluoroethylene emulsion, 15-20% of polyurethane emulsion, 5.7-6.3% of sodium aluminosilicate, 4.2-4.8% of potassium tripolyphosphate, 2.4-3.3% of calcium sulfide, 1.8-2.5% of calcium chloride, 3.48-5.62% of dicyandiamide solution, 2.65-2.85% of adipic dihydrazide, 4.7-5.3% of polyether polyamine, 3.8-4.6% of maleic anhydride, 7.62-7.88% of assistant and the balance of water-soluble polymer emulsion; the invention also discloses a preparation method of the high-molecular water-based electrostatic coating material capable of being quickly dried, which comprises the following steps: electromagnetic stirring, ball milling and screening, filtering and heating, mixing and stirring; the high-molecular water-based electrostatic coating material can effectively shorten the fixing time, reduce the curing temperature, accelerate the drying speed under natural conditions, avoid the damage to the coated paint caused by human in a short time, reduce the processing difficulty and save the processing time when the water-based paint is processed and used.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to a high-molecular water-based electrostatic coating material capable of being quickly dried and a preparation method thereof.
Background
the water paint is a paint using water as solvent or dispersion medium, and is a relatively new paint in the paint market, including water-soluble paint, water-dilutable paint and water-dispersible paint (latex paint). The water-based paint takes water-soluble resin as a film forming material, takes polyvinyl alcohol and various modified substances thereof as representatives, and also comprises water-soluble alkyd resin, water-soluble epoxy resin, inorganic high polymer water-based resin and the like; the water-based paint in the prior art generally has the defects of long drying time and poor curing effect, and is easily damaged by people in a short time after being coated, so that a high-molecular water-based electrostatic coating material capable of being dried quickly and a preparation method thereof are provided.
Disclosure of Invention
The invention aims to provide a high-molecular water-based electrostatic coating material capable of being quickly dried and a preparation method thereof, so as to solve the problems in the background art.
in order to achieve the purpose, the invention provides the following technical scheme: a high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following components (by mass percent): 25-28% of polytetrafluoroethylene emulsion, 15-20% of polyurethane emulsion, 5.7-6.3% of sodium aluminosilicate, 4.2-4.8% of potassium tripolyphosphate, 2.4-3.3% of calcium sulfide, 1.8-2.5% of calcium chloride, 3.48-5.62% of dicyandiamide solution, 2.65-2.85% of adipic dihydrazide, 4.7-5.3% of polyether polyamine, 3.8-4.6% of maleic anhydride, 7.62-7.88% of assistant and the balance of water-soluble polymer emulsion.
preferably, the composition comprises the following components (by mass percent): 25% of polytetrafluoroethylene emulsion, 15% of polyurethane emulsion, 5.7% of sodium aluminosilicate, 4.2% of potassium tripolyphosphate, 2.4% of calcium sulfide, 1.8% of calcium chloride, 3.48% of dicyandiamide solution, 2.65% of adipic dihydrazide, 4.7% of polyether polyamine, 3.8% of maleic anhydride, 7.62% of auxiliary agent and the balance of water-soluble polymer emulsion.
Preferably, the composition comprises the following components (by mass percent): 26% of polytetrafluoroethylene emulsion, 16% of polyurethane emulsion, 5.9% of sodium aluminosilicate, 4.4% of potassium tripolyphosphate, 2.6% of calcium sulfide, 2.1% of calcium chloride, 3.95% of dicyandiamide solution, 2.72% of adipic dihydrazide, 4.9% of polyether polyamine, 4.2% of maleic anhydride, 7.73% of auxiliary agent and the balance of water-soluble polymer emulsion.
Preferably, the composition comprises the following components (by mass percent): 27% of polytetrafluoroethylene emulsion, 18% of polyurethane emulsion, 6.1% of sodium aluminosilicate, 4.6% of potassium tripolyphosphate, 3.1% of calcium sulfide, 2.3% of calcium chloride, 5.4% of dicyandiamide solution, 2.79% of adipic dihydrazide, 5.1% of polyether polyamine, 4.4% of maleic anhydride, 7.82% of auxiliary agent and the balance of water-soluble polymer emulsion.
Preferably, the composition comprises the following components (by mass percent): 28% of polytetrafluoroethylene emulsion, 20% of polyurethane emulsion, 6.3% of sodium aluminosilicate, 4.8% of potassium tripolyphosphate, 3.3% of calcium sulfide, 2.5% of calcium chloride, 5.62% of dicyandiamide solution, 2.85% of adipic dihydrazide, 5.3% of polyether polyamine, 4.6% of maleic anhydride, 7.88% of auxiliary agent and the balance of water-soluble polymer emulsion.
Preferably, the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin, the epoxy resin and the epoxy curing agent is 1:1: 1; the tackifier is DINP, and the antifoaming agent is 104E.
The preparation method of the high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following steps:
The method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 280-380 r/min, continuously stirring for 15-20 min, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 420-470 r/min, and continuously stirring for 25-35 min to obtain a mixture A;
Step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 40-60 minutes at the rotating speed of 120-170r/min, screening the mixture through a 600-1000 mesh screen after the ball milling is finished, and mixing the screened mixture and the screened mixture to obtain a mixture B;
step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 20-30 minutes by a high-speed stirrer, filtering by a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 45-60 ℃, and taking out to obtain a mixture C;
Step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 2-5 times, continuously stirring for 15-25 minutes at the temperature of 30-45 ℃, and obtaining a mixture D after stirring;
step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 3-8% of carbon dioxide gas into the sealed barrel to react for 20-30 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
Compared with the prior art, the invention has the beneficial effects that: the high-molecular water-based electrostatic coating material is prepared by taking polytetrafluoroethylene emulsion and polyurethane emulsion as main raw materials and adding sodium aluminosilicate, potassium tripolyphosphate, calcium sulfide, calcium chloride, adipic dihydrazide, polyether polyamine and maleic anhydride in a matching manner, so that the fixing time can be effectively shortened, the required curing temperature is reduced, the drying speed under natural conditions is accelerated, the coated coating can be prevented from being damaged manually in a short time, the processing difficulty is reduced and the processing time is saved when the water-based coating is processed and used, and the preparation method is simpler, the equipment requirement is low, and the high-molecular water-based electrostatic coating material has a good popularization effect.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
A high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following components (by mass percent): 25% of polytetrafluoroethylene emulsion, 15% of polyurethane emulsion, 5.7% of sodium aluminosilicate, 4.2% of potassium tripolyphosphate, 2.4% of calcium sulfide, 1.8% of calcium chloride, 3.48% of dicyandiamide solution, 2.65% of adipic dihydrazide, 4.7% of polyether polyamine, 3.8% of maleic anhydride, 7.62% of auxiliary agent and the balance of water-soluble polymer emulsion.
further, the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin, the epoxy resin and the epoxy curing agent is 1:1: 1; the tackifier is DINP and the defoamer is 104E.
the preparation method of the high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following steps:
The method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 280 revolutions per minute, continuously stirring for 15 minutes, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 420 revolutions per minute, and continuously stirring for 25 minutes to obtain a mixture A;
step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 40 minutes at a rotating speed of 120r/min, screening the mixture by using a 600-mesh sieve after the ball milling is finished, and mixing the adipic dihydrazide and the maleic anhydride after the screening to obtain a mixture B;
Step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 20 minutes by using a high-speed stirrer, filtering by using a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 45 ℃, and taking out to obtain a mixture C;
step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 2 times, continuously stirring for 15 minutes at the temperature of 30 ℃, and obtaining a mixture D after stirring is finished;
Step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 3% carbon dioxide gas into the sealed barrel, reacting for 20 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
Example two:
A high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following components (by mass percent): 26% of polytetrafluoroethylene emulsion, 16% of polyurethane emulsion, 5.9% of sodium aluminosilicate, 4.4% of potassium tripolyphosphate, 2.6% of calcium sulfide, 2.1% of calcium chloride, 3.95% of dicyandiamide solution, 2.72% of adipic dihydrazide, 4.9% of polyether polyamine, 4.2% of maleic anhydride, 7.73% of auxiliary agent and the balance of water-soluble polymer emulsion.
further, the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin, the epoxy resin and the epoxy curing agent is 1:1: 1; the tackifier is DINP and the defoamer is 104E.
a preparation method of a high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following steps:
the method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 320 revolutions per minute, continuously stirring for 17 minutes, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 440 revolutions per minute, and continuously stirring for 28 minutes to obtain a mixture A;
Step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 45 minutes at a rotating speed of 140r/min, screening the mixture by using a 800-mesh sieve after the ball milling is finished, and mixing the adipic dihydrazide and the maleic anhydride after the screening to obtain a mixture B;
Step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 23 minutes by using a high-speed stirrer, filtering by using a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 50 ℃, and taking out to obtain a mixture C;
Step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 3 times, continuously stirring for 18 minutes at 35 ℃, and obtaining a mixture D after stirring;
step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 5% carbon dioxide gas into the sealed barrel to react for 24 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
Example three:
A high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following components (by mass percent): 27% of polytetrafluoroethylene emulsion, 18% of polyurethane emulsion, 6.1% of sodium aluminosilicate, 4.6% of potassium tripolyphosphate, 3.1% of calcium sulfide, 2.3% of calcium chloride, 5.4% of dicyandiamide solution, 2.79% of adipic dihydrazide, 5.1% of polyether polyamine, 4.4% of maleic anhydride, 7.82% of auxiliary agent and the balance of water-soluble polymer emulsion.
further, the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin, the epoxy resin and the epoxy curing agent is 1:1: 1; the tackifier is DINP and the defoamer is 104E.
A preparation method of a high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following steps:
The method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 350 r/min, continuously stirring for 19 minutes, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 460 r/min, and continuously stirring for 32 minutes to obtain a mixture A;
Step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 55 minutes at a rotating speed of 160r/min, screening the weighed adipic dihydrazide and maleic anhydride by using a 900-mesh sieve after the ball milling is finished, and mixing the adipic dihydrazide and maleic anhydride after the screening to obtain a mixture B;
step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 27 minutes by using a high-speed stirrer, filtering by using a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 55 ℃, and taking out to obtain a mixture C;
step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 4 times, continuously stirring for 22 minutes at 40 ℃, and obtaining a mixture D after stirring;
step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 7% carbon dioxide gas into the sealed barrel, reacting for 28 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
example four:
A high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following components (by mass percent): 28% of polytetrafluoroethylene emulsion, 20% of polyurethane emulsion, 6.3% of sodium aluminosilicate, 4.8% of potassium tripolyphosphate, 3.3% of calcium sulfide, 2.5% of calcium chloride, 5.62% of dicyandiamide solution, 2.85% of adipic dihydrazide, 5.3% of polyether polyamine, 4.6% of maleic anhydride, 7.88% of auxiliary agent and the balance of water-soluble polymer emulsion.
further, the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin, the epoxy resin and the epoxy curing agent is 1:1: 1; the tackifier is DINP and the defoamer is 104E.
A preparation method of a high-molecular water-based electrostatic coating material capable of being rapidly dried comprises the following steps:
the method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 380 r/min, continuously stirring for 20 min, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 470 r/min, and continuously stirring for 35 min to obtain a mixture A;
step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 60 minutes at a rotating speed of 170r/min, screening the mixture through a 1000-mesh screen after the ball milling is finished, and mixing the adipic dihydrazide and the maleic anhydride after the screening to obtain a mixture B;
step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 30 minutes by using a high-speed stirrer, filtering by using a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 60 ℃, and taking out to obtain a mixture C;
step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 5 times, continuously stirring for 25 minutes at 45 ℃, and obtaining a mixture D after stirring;
Step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 8% carbon dioxide gas into the sealed barrel to react for 30 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
the four groups of embodiments can prepare the high-molecular water-based electrostatic coating material, and the high-molecular water-based electrostatic coating material is prepared by taking polytetrafluoroethylene emulsion and polyurethane emulsion as main raw materials and adding sodium aluminosilicate, potassium tripolyphosphate, calcium sulfide, calcium chloride, adipic dihydrazide, polyether polyamine and maleic anhydride in a matching manner, so that the coating prepared by the formula can effectively shorten the fixing time, reduce the temperature required for curing, accelerate the drying speed under natural conditions, avoid artificial damage to the coated coating in a short time, reduce the processing difficulty and save the processing time when the water-based coating is processed and used, and the preparation method is simpler, has low equipment requirement and has good popularization effect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. a high-molecular water-based electrostatic coating material capable of being rapidly dried is characterized by comprising the following components (in percentage by mass): 25-28% of polytetrafluoroethylene emulsion, 15-20% of polyurethane emulsion, 5.7-6.3% of sodium aluminosilicate, 4.2-4.8% of potassium tripolyphosphate, 2.4-3.3% of calcium sulfide, 1.8-2.5% of calcium chloride, 3.48-5.62% of dicyandiamide solution, 2.65-2.85% of adipic dihydrazide, 4.7-5.3% of polyether polyamine, 3.8-4.6% of maleic anhydride, 7.62-7.88% of assistant and the balance of water-soluble polymer emulsion.
2. the high-molecular water-based electrostatic coating material capable of being rapidly dried according to claim 1, which comprises the following components (by mass percent): 25% of polytetrafluoroethylene emulsion, 15% of polyurethane emulsion, 5.7% of sodium aluminosilicate, 4.2% of potassium tripolyphosphate, 2.4% of calcium sulfide, 1.8% of calcium chloride, 3.48% of dicyandiamide solution, 2.65% of adipic dihydrazide, 4.7% of polyether polyamine, 3.8% of maleic anhydride, 7.62% of auxiliary agent and the balance of water-soluble polymer emulsion.
3. The high-molecular water-based electrostatic coating material capable of being rapidly dried according to claim 1, which comprises the following components (by mass percent): 26% of polytetrafluoroethylene emulsion, 16% of polyurethane emulsion, 5.9% of sodium aluminosilicate, 4.4% of potassium tripolyphosphate, 2.6% of calcium sulfide, 2.1% of calcium chloride, 3.95% of dicyandiamide solution, 2.72% of adipic dihydrazide, 4.9% of polyether polyamine, 4.2% of maleic anhydride, 7.73% of auxiliary agent and the balance of water-soluble polymer emulsion.
4. the high-molecular water-based electrostatic coating material capable of being rapidly dried according to claim 1, which comprises the following components (by mass percent): 27% of polytetrafluoroethylene emulsion, 18% of polyurethane emulsion, 6.1% of sodium aluminosilicate, 4.6% of potassium tripolyphosphate, 3.1% of calcium sulfide, 2.3% of calcium chloride, 5.4% of dicyandiamide solution, 2.79% of adipic dihydrazide, 5.1% of polyether polyamine, 4.4% of maleic anhydride, 7.82% of auxiliary agent and the balance of water-soluble polymer emulsion.
5. The high-molecular water-based electrostatic coating material capable of being rapidly dried according to claim 1, which comprises the following components (by mass percent): 28% of polytetrafluoroethylene emulsion, 20% of polyurethane emulsion, 6.3% of sodium aluminosilicate, 4.8% of potassium tripolyphosphate, 3.3% of calcium sulfide, 2.5% of calcium chloride, 5.62% of dicyandiamide solution, 2.85% of adipic dihydrazide, 5.3% of polyether polyamine, 4.6% of maleic anhydride, 7.88% of auxiliary agent and the balance of water-soluble polymer emulsion.
6. The high molecular water-based electrostatic coating material capable of being rapidly dried according to claim 1, wherein: the auxiliary agent consists of 35% of curing agent, 35% of tackifier and 30% of defoaming agent, wherein the curing agent is a mixture of alkyd resin, epoxy resin and epoxy curing agent, and the ratio of the alkyd resin to the epoxy curing agent is 1:1: 1; the tackifier is DINP, and the antifoaming agent is 104E.
7. A method for preparing a high molecular water-based electrostatic coating material capable of being rapidly dried according to any one of claims 1 to 6, which comprises the following steps:
the method comprises the following steps: introducing the water-soluble polymer emulsion into a container, placing the container on an electromagnetic stirrer, setting the rotating speed of the stirrer at 280-380 r/min, continuously stirring for 15-20 min, then sequentially adding the polytetrafluoroethylene emulsion and the polyurethane emulsion into the water-soluble polymer emulsion, setting the rotating speed of the stirrer at 420-470 r/min, and continuously stirring for 25-35 min to obtain a mixture A;
step two: weighing a certain amount of adipic dihydrazide and maleic anhydride, respectively placing the weighed adipic dihydrazide and maleic anhydride into a ball mill for ball milling for 40-60 minutes at the rotating speed of 120-170r/min, screening the mixture through a 600-1000 mesh screen after the ball milling is finished, and mixing the screened mixture and the screened mixture to obtain a mixture B;
Step three: mixing the dicyandiamide solution and the polyether polyamine, stirring for 20-30 minutes by a high-speed stirrer, filtering by a centrifugal filter after stirring is finished, putting the filtrate into heating equipment, heating to 45-60 ℃, and taking out to obtain a mixture C;
step four: mixing the mixture A, the mixture B and the mixture C in a stirring device, continuously stirring, sequentially adding potassium tripolyphosphate, sodium aluminosilicate, calcium sulfide and calcium chloride in the stirring process, adding the auxiliary agent for 2-5 times, continuously stirring for 15-25 minutes at the temperature of 30-45 ℃, and obtaining a mixture D after stirring;
step five: and pouring the mixture D obtained in the fourth step into a sealed barrel, vacuumizing the sealed barrel by using a vacuum air pump, introducing 3-8% of carbon dioxide gas into the sealed barrel to react for 20-30 minutes, and obtaining the high-molecular aqueous electrostatic coating material after the reaction is finished.
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