CN112322147A - Preparation method of coating for iron artware - Google Patents
Preparation method of coating for iron artware Download PDFInfo
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- CN112322147A CN112322147A CN202011524505.XA CN202011524505A CN112322147A CN 112322147 A CN112322147 A CN 112322147A CN 202011524505 A CN202011524505 A CN 202011524505A CN 112322147 A CN112322147 A CN 112322147A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- 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
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Abstract
The invention discloses a preparation method of a coating for iron artware, belonging to the technical field of artware processing and comprising the following steps: (1) preparing functional filler; (2) weighing raw materials; (3) pretreating raw materials; (4) and (5) preparing a finished product. The application provides a preparation method of the coating for the iron artware, the finally prepared coating is coated on the surface of the iron artware, the acid, alkali and salt corrosion resistance of the iron artware can be effectively improved, the chemical corrosion resistance of the surface is enhanced, the quality is improved, the maintenance and storage cost is reduced to a great extent, and resources are saved.
Description
Technical Field
The invention belongs to the technical field of artware processing, and particularly relates to a preparation method of a coating for an iron artware.
Background
The artware (English: art craft) is specially designed for the industrialized era, is produced in batches by machines, has certain artistic attributes, can meet the daily life needs of people, and is a commodity with decoration and use functions. The handicraft comes from the life of people, but creates a value higher than the life. It is a crystal of human intelligence and modern industrial technology. The handicraft is always a traditional export product in China, is exquisite in manufacture and low in cost, can cater to trend, and has a wide market in Europe and America. The Chinese handicraft is rich and colorful, vivid and interesting, and low in price, which is the reason why the handicraft is loved by the old and the young, and the development prospect is very considerable.
The iron artware is a very popular artware, which is easily corroded by acid, alkali and salt during storage and display to damage the artware so as to make the artware have ornamental value, and in order to prevent the artware from being chemically corroded by acid, alkali, salt and the like, the storage environment and the storage mode of the artware are very strict, i.e. a large amount of manpower and material resources are needed to avoid the artware from being chemically corroded, and once the artware is corroded, a large amount of manpower and material resources are needed to repair the artware, so that the great waste of resources is caused to a great extent.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a coating for an iron craft, and the finally prepared coating is coated on the surface of the iron craft, so that the acid, alkali and salt corrosion resistance of the iron craft can be effectively improved, the chemical corrosion resistance of the surface is enhanced, the quality is improved, the maintenance and storage cost is reduced to a great extent, and the resources are saved.
In order to achieve the purpose, the invention provides the following technical scheme:
a preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves to prepare a graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, and taking out the sepiolite for later use;
c. placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent together in a stirring tank according to the weight ratio of 5-8: 11-16: 1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into a position 1-4 cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance effect for 1-4 hours, and performing high-speed centrifugation to obtain a precipitate for later use;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing for 35-55 min;
(2) weighing raw materials:
weighing 35-55% of epoxy resin, 7-11% of functional filler, 0.5-2.5% of propylene glycol butyl ether, 0.5-2.5% of magnesium stearate, 1-4% of silicone oil, 0.6-1% of polyoxyethylene polyoxypropylene ether, 1.5-3.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture into a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use;
(4) and (3) preparing a finished product:
and (4) putting the homogeneous product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1000-1600 rpm, filtering by using a 120-140-mesh sample separation sieve, standing for 1-2 h, and bottling and discharging.
Further, the frequency of the ultrasonic wave in the operation a of the step (1) is 35-55 kHz.
Further, the irradiation dose is controlled to be 9-13 MeV during the electron beam irradiation treatment in the operation b of the step (1), and the irradiation treatment time is 4-10 min.
Further, the ultrasonic frequency is controlled to be 40-110 kHz during the ultrasonic treatment in the step (1) operation c.
Further, the rotation speed of the centrifuge is controlled to be 7000-9000 rpm in the high-speed centrifugal treatment in the operation c of the step (1).
Further, the rotation speed of the bead mill is controlled to be 1000-2000 rpm during the crushing treatment in the operation d of the step (1).
By adopting the technical scheme, the sepiolite is subjected to electron beam irradiation treatment, when the sepiolite is irradiated by high-energy electron beams, the incident electron beam irradiation energy is lost, atoms in impacted molecules are released, the atoms are excited, a certain amount of active free radicals are formed on a molecular chain framework, the steric hindrance of the groups is large, the lamellar structure of the sepiolite is increased, when the sepiolite is soaked in a mixed solution of graphene, glycerol and a silane coupling agent, the graphene can be quickly absorbed by the sepiolite subjected to electron beam irradiation under the action of the glycerol and the silane coupling agent, the effects of cavitation effect, thermal effect and the like of ultrasonic waves are combined, the graphene is promoted to be deposited and attached to the interlayer structure of the sepiolite, the sepiolite is subjected to quick centrifugal treatment, the sepiolite can sink and harden, and the graphene can be tightly embedded into the lamellar gaps of the sepiolite to form a composite functional filler structure with a stable structure and bulges, the method can effectively prevent the filler from agglomeration, weaken and even completely eliminate the interface effect between the filler and the matrix component and the auxiliary component of the coating, improve the filling effect of the filler, improve the adhesive force of the coating, enhance the surface performance of the iron artware and further improve the surface corrosion resistance of the iron artware.
Further, the working pressure of the micro-jet high-pressure homogenizer is controlled to be 90-110 MPa during the homogenization treatment in the step (3), and the time of the homogenization treatment is 8-16 min.
Further, the step (4) is carried out with magnetic field treatment with specific power while stirring and dispersing, and the power of the magnetic field is 900-1000W.
By adopting the technical scheme, the functional filler, the epoxy resin, the propylene glycol butyl ether and the like are jointly placed into a homogenizer according to a proper proportion for high-pressure homogenization treatment, the interfacial effect between the raw materials is further weakened or even eliminated by shearing and high-speed collision in a high-pressure homogenization cavity, the mutual tight combination between the raw materials is promoted, the quality of the coating is improved, the filling effect of the filler is enhanced, the magnetic field treatment is carried out in the dispersion process, the convection in a homogenized product is inhibited due to the application of the magnetic field, the homogenization is further refined, and the quality of a finished product is improved.
Compared with the prior art, the invention has the following advantages:
the application provides a preparation method of the coating for the iron artware, the finally prepared coating is coated on the surface of the iron artware, the acid, alkali and salt corrosion resistance of the iron artware can be effectively improved, the chemical corrosion resistance of the surface is enhanced, the quality is improved, the maintenance and storage cost is reduced to a great extent, and resources are saved.
Detailed Description
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 35-55 kHz to prepare a graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 9-13 MeV, and the irradiation treatment time to be 4-10 min, and taking out the sepiolite for later use;
c. placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 5-8: 11-16: 1, stirring and mixing uniformly to obtain a mixed solution, immersing an ultrasonic probe into a position 1-4 cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment for 1-4 hours under the ultrasonic assistance effect, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 40-110 kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 7000-9000 rpm during high-speed centrifugation treatment;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out at 1000-2000 rpm for 35-55 min;
(2) weighing raw materials:
weighing 35-55% of epoxy resin, 7-11% of functional filler, 0.5-2.5% of propylene glycol butyl ether, 0.5-2.5% of magnesium stearate, 1-4% of silicone oil, 0.6-1% of polyoxyethylene polyoxypropylene ether, 1.5-3.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 90-110 MPa homogenization is carried out for 8-16 min;
(4) and (3) preparing a finished product:
and (3) putting the homogeneous product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1000-1600 rpm, filtering by using a 120-140-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, standing for 1-2 h, bottling and discharging.
For further explanation of the present invention, reference will now be made to the following specific examples.
Example 1
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 35kHz to prepare graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 9MeV and the irradiation treatment time to be 4min, and taking out the sepiolite for later use;
c. putting the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 5:11:1, stirring and uniformly mixing to obtain a mixed solution, immersing an ultrasonic probe into the mixed solution at a position 1cm below the liquid surface of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment for 1 hour under the ultrasonic assistance effect, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 40kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 7000rpm during high-speed centrifugation treatment;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out for 35min at 1000 rpm;
(2) weighing raw materials:
weighing 35% of epoxy resin, 7% of functional filler, 0.5% of propylene glycol butyl ether, 0.5% of magnesium stearate, 1% of silicone oil, 0.6% of polyoxyethylene polyoxypropylene amine ether, 1.5% of carboxymethyl cellulose and the balance of water according to corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 90MPa homogenization is carried out for 8 min;
(4) and (3) preparing a finished product:
and (4) putting the homogenized product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1000rpm, filtering by using a 120-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 900W, standing for 1h, and bottling and discharging.
Example 2
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 45kHz to prepare graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 11MeV and the irradiation treatment time to be 7min, and taking out the sepiolite for later use;
c. b, placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 6.5:13.5:1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance action for 2.5 hours, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 75kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 8000rpm during high-speed centrifugation treatment;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out for 45min at 1500 rpm;
(2) weighing raw materials:
weighing 45% of epoxy resin, 9% of functional filler, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 100MPa homogenization is carried out for 12 min;
(4) and (3) preparing a finished product:
and (4) putting the homogeneous product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 950W, standing for 1.5h, bottling and discharging.
Example 3
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 55kHz to prepare graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 13MeV, and the irradiation treatment time to be 10min, and taking out the sepiolite for later use;
c. putting the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 8:16:1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into the position 4cm below the liquid surface of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance action for 4 hours, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 110kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 9000rpm during high-speed centrifugation;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out for 55min at 2000 rpm;
(2) weighing raw materials:
weighing 55% of epoxy resin, 11% of functional filler, 2.5% of propylene glycol butyl ether, 2.5% of magnesium stearate, 4% of silicone oil, 1% of polyoxyethylene polyoxypropylene amine ether, 3.5% of carboxymethyl cellulose and the balance of water according to the corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 110MPa homogenization is carried out for 16 min;
(4) and (3) preparing a finished product:
and (4) putting the homogeneous product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1600rpm, filtering by using a 140-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 1000W, standing for 2h, and bottling and discharging.
Example 4
A preparation method of the coating for the iron artware comprises the following steps:
(1) weighing raw materials:
weighing 45% of epoxy resin, 9% of sepiolite, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(2) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (1), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 100MPa homogenization is carried out for 12 min;
(3) and (3) preparing a finished product:
and (3) putting the homogeneous product obtained in the step (2) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 950W, standing for 1.5h, bottling and discharging.
Example 5
A preparation method of the coating for the iron artware comprises the following steps:
(1) weighing raw materials:
weighing 45% of epoxy resin, 9% of graphene, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water according to corresponding weight percentage for later use;
(2) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (1), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 100MPa homogenization is carried out for 12 min;
(3) and (3) preparing a finished product:
and (3) putting the homogeneous product obtained in the step (2) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 950W, standing for 1.5h, bottling and discharging.
Example 6
A preparation method of the coating for the iron artware comprises the following steps:
(1) weighing raw materials:
weighing 54% of epoxy resin, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water for later use;
(2) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (1), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 100MPa homogenization is carried out for 12 min;
(3) and (3) preparing a finished product:
and (3) putting the homogeneous product obtained in the step (2) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 950W, standing for 1.5h, bottling and discharging.
Example 7
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 45kHz to prepare graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 11MeV and the irradiation treatment time to be 7min, and taking out the sepiolite for later use;
c. b, placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 6.5:13.5:1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance action for 2.5 hours, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 75kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 8000rpm during high-speed centrifugation treatment;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out for 45min at 1500 rpm;
(2) weighing raw materials:
weighing 45% of epoxy resin, 9% of functional filler, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) and (3) preparing a finished product:
and (3) sequentially putting all the raw materials weighed in the step (2) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, stirring and dispersing while performing magnetic field treatment with specific power, wherein the power of the magnetic field is 950W, standing for 1.5h, bottling and discharging.
Example 8
A preparation method of the coating for the iron artware comprises the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves with the frequency of 45kHz to prepare graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, controlling the irradiation dose to be 11MeV and the irradiation treatment time to be 7min, and taking out the sepiolite for later use;
c. b, placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent into a stirring tank together according to the weight ratio of 6.5:13.5:1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into a position 2.5cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance action for 2.5 hours, and performing high-speed centrifugation to obtain a precipitate for later use, wherein the frequency of ultrasonic waves is controlled to be 75kHz during ultrasonic treatment, and the rotating speed of a centrifuge is controlled to be 8000rpm during high-speed centrifugation treatment;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing treatment, wherein the crushing treatment is carried out for 45min at 1500 rpm;
(2) weighing raw materials:
weighing 45% of epoxy resin, 9% of functional filler, 1.5% of propylene glycol butyl ether, 1.5% of magnesium stearate, 2.5% of silicone oil, 0.8% of polyoxyethylene polyoxypropylene ether, 2.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture in a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use after 100MPa homogenization is carried out for 12 min;
(4) and (3) preparing a finished product:
and (4) putting the homogenized product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1300rpm, filtering by using a 130-mesh sample separation sieve, standing for 1.5h, and bottling and discharging.
In order to compare the effects of the invention, the same batch of iron artworks with the same specification and model are selected as test objects, the selected test objects are randomly divided into 7 groups with equal quality and quantity, wherein 6 groups are test groups, 1 group is a blank control group, then the coating is correspondingly prepared by the methods of the embodiment 2 and the embodiments 4-8, the coating prepared by the groups of the method is uniformly coated on the surface of each group of the iron artworks in the same coating mode, wherein the blank control group is not treated, after the treatment is finished, under normal temperature and normal pressure, each group (including the blank control group) respectively takes 6 iron artworks to be immersed in 10moL/L NaCl solution, takes 6 iron artworks to be immersed in 10moL/L HCl solution, takes 6 iron artworks to be immersed in 10moL/L NaOH solution, the time of corrosion of each group of the iron artworks is observed, statistics is recorded (each group of the tests are all 6 parallel tests, take their average as the final result). Specific experimental comparative data are shown in table 1:
TABLE 1
As can be seen from table 1 above, the application provides a preparation method of a coating for an iron craft, and the finally prepared coating is coated on the surface of the iron craft, so that the acid, alkali and salt corrosion resistance of the iron craft can be effectively improved, the chemical corrosion resistance of the surface is enhanced, the quality is further improved, the maintenance and storage cost is reduced to a great extent, and the resources are saved.
Claims (8)
1. A preparation method of the coating for the iron artware is characterized by comprising the following steps:
(1) preparing functional filler:
a. uniformly dispersing graphene into a dispersing agent under the auxiliary action of ultrasonic waves to prepare a graphene suspension for later use;
b. placing the sepiolite on a GJ-1.5 type high-frequency high-voltage high-power electron accelerator for electron beam irradiation treatment, and taking out the sepiolite for later use;
c. placing the graphene suspension obtained in the operation a, glycerol and a silane coupling agent together in a stirring tank according to the weight ratio of 5-8: 11-16: 1, uniformly stirring to obtain a mixed solution, immersing an ultrasonic probe into a position 1-4 cm below the liquid level of the mixed solution, immersing the sepiolite obtained in the operation b into the mixed solution, performing immersion treatment under the ultrasonic assistance effect for 1-4 hours, and performing high-speed centrifugation to obtain a precipitate for later use;
d. c, placing the precipitate obtained in the operation c into a bead mill for crushing for 35-55 min;
(2) weighing raw materials:
weighing 35-55% of epoxy resin, 7-11% of functional filler, 0.5-2.5% of propylene glycol butyl ether, 0.5-2.5% of magnesium stearate, 1-4% of silicone oil, 0.6-1% of polyoxyethylene polyoxypropylene ether, 1.5-3.5% of carboxymethyl cellulose and the balance of water by corresponding weight percentage for later use;
(3) pretreatment of raw materials:
uniformly mixing all the raw materials weighed in the step (2), placing the mixture into a micro-jet high-pressure homogenizer for high-pressure homogenization, and taking out a homogenized product for later use;
(4) and (3) preparing a finished product:
and (4) putting the homogeneous product obtained in the step (3) into a dispersion cylinder, stirring and dispersing uniformly at the rotating speed of 1000-1600 rpm, filtering by using a 120-140-mesh sample separation sieve, standing for 1-2 h, and bottling and discharging.
2. The method of claim 1, wherein the ultrasonic wave used in the operation a of the step (1) has a frequency of 35 to 55 kHz.
3. The method of claim 1, wherein the irradiation dose of the electron beam irradiation treatment in the operation b of the step (1) is controlled to be 9 to 13MeV, and the irradiation treatment time is 4 to 10 min.
4. The method of claim 1, wherein the ultrasonic treatment in the operation c of the step (1) is performed while controlling a frequency of the ultrasonic wave to be 40 to 110 kHz.
5. The method of claim 1, wherein the high speed centrifugation in the operation c of the step (1) is performed at 7000 to 9000 rpm.
6. The method of claim 1, wherein the rotation speed of the bead mill is controlled to be 1000 to 2000rpm during the pulverization process in the operation d of the step (1).
7. The method of claim 1, wherein the operating pressure of the micro-jet high-pressure homogenizer is controlled to be 90 to 110MPa during the homogenization treatment in the step (3), and the time for the homogenization treatment is controlled to be 8 to 16 min.
8. The method of claim 1, wherein the step (4) is performed with magnetic field treatment of a specific power while stirring and dispersing, and the power of the magnetic field is 900 to 1000W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524505.XA CN112322147A (en) | 2020-12-22 | 2020-12-22 | Preparation method of coating for iron artware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524505.XA CN112322147A (en) | 2020-12-22 | 2020-12-22 | Preparation method of coating for iron artware |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116102953A (en) * | 2023-04-10 | 2023-05-12 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Drag-reduction coating material in geothermal conveying pipeline and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116102953A (en) * | 2023-04-10 | 2023-05-12 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | Drag-reduction coating material in geothermal conveying pipeline and preparation method thereof |
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