CN116004063A - Improved quick-drying aqueous steel pipe antirust varnish - Google Patents
Improved quick-drying aqueous steel pipe antirust varnish Download PDFInfo
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- CN116004063A CN116004063A CN202310025127.8A CN202310025127A CN116004063A CN 116004063 A CN116004063 A CN 116004063A CN 202310025127 A CN202310025127 A CN 202310025127A CN 116004063 A CN116004063 A CN 116004063A
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Abstract
The invention discloses an improved quick-drying water-based steel pipe rust-proof varnish, which relates to the technical field of steel pipe rust-proof varnish, and aims to solve the technical problems that a paint film is dried slowly after being sprayed on a steel pipe in the prior art, the binding requirement cannot be met in a faster time, the production rhythm of the steel pipe is greatly influenced, friction is generated in the transportation process of the steel pipe, the paint film is easy to scrape off to cause rust of the steel pipe, and the quality and the appearance of the steel pipe are influenced, and the rust-proof varnish comprises the following components in parts by weight: 40-55 parts of modified acrylic resin, 15-30 parts of water-based modified alkyd resin, 0.01-0.05 part of flatting agent, 0.01-0.05 part of defoamer, 3-10 parts of ethanol, 0.1-0.4 part of pH regulator, 0.5-2 parts of antirust auxiliary agent, 1-3 parts of propylene glycol methyl ether, 1-3 parts of dipropylene glycol butyl ether, 0.1-1 part of thickener and 15-25 parts of water.
Description
Technical Field
The invention belongs to the technical field of steel pipe rust-proof varnish, and particularly relates to improved quick-drying water-based steel pipe rust-proof varnish.
Background
China is a large country of world steel pipe production, the annual output is about 8000 ten thousand tons, accounting for 60% of the world output, the method is mainly applied to building, oil exploitation and pipeline transportation, along with the continuous improvement of the price of oil, the oil exploitation industry forms are better, the development of the steel pipe industry is driven, the long-distance transportation of the steel pipe is ensured not to be corroded by the environment, a layer of paint needs to be sprayed on the outer surface for protection, and most of domestic steel pipe enterprises use oil paint for spraying, but the pollution and the potential safety hazard generated by the oil paint do not meet the national requirements along with the increasing importance of the country on the environment protection and the safety.
At present, the invention patent with the patent number of CN 201610630395.2 discloses an aqueous durable odorless cleaning-free metal antirust varnish, which is characterized in that: the material is prepared from the following raw materials in parts by weight: the aqueous paint contains 0.1 to 100 percent of acrylic acid or modified acrylic ester emulsion, 0 to 99.8 percent of water, 0.05 to 3 percent of pH regulator, 0.5 to 4 percent of antirust agent and other proper auxiliary agents needed by the aqueous paint, and the necessity of using an emulsifying agent is avoided. Therefore, the water resistance and the rust resistance of the resin after film formation are improved, but after the antirust varnish is sprayed on the steel pipe, a paint film is dried slower, the binding requirement cannot be met in a faster time, the production rhythm of the steel pipe is greatly influenced, friction is generated in the transportation process of the steel pipe, the paint film is easily scraped to cause rust of the steel pipe, and the quality and the attractiveness of the steel pipe are influenced.
Therefore, in order to solve the above-mentioned problem of low drying speed, there is a need to solve the problem to improve the use scene of the rust inhibitive varnish.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the invention aims to provide an improved quick-drying water-based antirust varnish for steel pipes, which aims to solve the technical problems that a paint film is slower to dry and can not meet the bundling requirement in a faster time after being sprayed on the steel pipes in the prior art, the production rhythm of the steel pipes is greatly influenced, friction is generated in the transportation process of the steel pipes, the paint film is easy to scrape off to cause rust of the steel pipes, and the quality and the attractiveness of the steel pipes are influenced.
(2) Technical proposal
In order to solve the technical problems, the invention provides an improved quick-drying aqueous steel pipe antirust varnish which comprises the following components in parts by weight: 40-55 parts of modified acrylic resin, 15-30 parts of water-based modified alkyd resin, 0.01-0.05 part of flatting agent, 0.01-0.05 part of defoamer, 3-10 parts of ethanol, 0.1-0.4 part of pH regulator, 0.5-2 parts of antirust auxiliary agent, 1-3 parts of propylene glycol methyl ether, 1-3 parts of dipropylene glycol butyl ether, 0.1-1 part of thickener and 15-25 parts of water.
Further, BYK-025 is selected as the defoamer.
Furthermore, the leveling agent is AFCONE-3585.
Further, the pH regulator is N, N-dimethylethanolamine.
Further, the antirust auxiliary agent is CK20.
Further, the thickener is polyurethane associative thickener.
The invention also provides a preparation method of the improved quick-drying water-based steel pipe antirust varnish, which comprises the following steps:
step one: sequentially adding dipropylene glycol butyl ether, propylene glycol methyl ether, a flatting agent, a defoaming agent and water into a stirring kettle, and setting stirring speed and time to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding modified acrylic resin, water-based modified alkyd resin, ethanol, a pH regulator, an antirust auxiliary agent and water into the mixed solution A, setting the stirring speed, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set, then the filtration is started, the filtered finished product is cooled to the room temperature, the varnish is obtained, and then the varnish is packaged and put in storage according to the specification.
Further, in the first step, the stirring speed is 800-1000r/min, and the stirring time is 10-20 minutes.
Further, the stirring speed in the second step is 800-1000r/min.
Further, the number of filter bags of the bag filter in the step three is 200 meshes, and the working pressure of the bag filter is 0.1-0.3MPa.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the modified acrylic resin is used as a main film forming agent, the resin is good in performance, the modified acrylic resin is higher in glass transition temperature, hardness and film forming performance are better than those of common epoxy acrylic resin, the modified acrylic resin is good in antirust performance, the aqueous modified alkyd resin is used as a secondary film forming agent, the main effect is that the drying performance and adhesive force of the paint are improved, the molecular mass of the resin selected by the secondary film forming agent is lower, compared with that of the main film forming agent, the molecular mass of the resin is wider, gaps of a modified acrylic resin structure can be effectively supplemented, the integral film forming performance of the paint is improved, the system is made to have alcohol solubility, meanwhile, ethanol is added in the formula, the drying speed of the paint is greatly improved, the antirust auxiliary agent is added, the antirust performance of the paint is greatly improved, the antirust performance of the paint is better than that of other products, the defoaming agent is BYK-025, the effect of the paint is controlled, the effect of the product is improved, the leveling agent is AFCONE-3585, the shrinkage cavity is mainly eliminated, the paint is spread on a low-surface tension substrate, the pH regulator is N-dimethyl ethanolamine, the pH regulator is good, the thickening agent is good in viscosity is used, the thickening agent is not affected in the thickening performance of the paint, the paint is good in the thickening effect is good, the thickening agent is used, and the paint is good in the antirust performance is good in the paint can be well, and the antirust performance is well in the paint can be well in the paint, and has the antirust effect.
Detailed Description
The specific embodiment is an improved quick-drying aqueous steel pipe antirust varnish, which comprises the following components in parts by weight: 40-55 parts of modified acrylic resin, 15-30 parts of water-based modified alkyd resin, 0.01-0.05 part of flatting agent, 0.01-0.05 part of defoamer, 3-10 parts of ethanol, 0.1-0.4 part of pH regulator, 0.5-2 parts of antirust auxiliary agent, 1-3 parts of propylene glycol methyl ether, 1-3 parts of dipropylene glycol butyl ether, 0.1-1 part of thickener and 15-25 parts of water.
Further, BYK-025 is selected as the defoamer.
Furthermore, the leveling agent is AFCONE-3585.
Further, the pH regulator is N, N-dimethylethanolamine.
Further, the antirust auxiliary agent is CK20.
Further, the thickener is polyurethane associative thickener.
The invention also provides a preparation method of the improved quick-drying water-based steel pipe antirust varnish, which comprises the following steps:
step one: sequentially adding dipropylene glycol butyl ether, propylene glycol methyl ether, a flatting agent, a defoaming agent and water into a stirring kettle, and setting stirring speed and time to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding modified acrylic resin, water-based modified alkyd resin, ethanol, a pH regulator, an antirust auxiliary agent and water into the mixed solution A, setting the stirring speed, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set, then the filtration is started, the filtered finished product is cooled to the room temperature, the varnish is obtained, and then the varnish is packaged and put in storage according to the specification.
Further, in the first step, the stirring speed is 800-1000r/min, and the stirring time is 10-20 minutes.
Further, the stirring speed in the second step is 800-1000r/min.
Further, the number of filter bags of the bag filter in the step three is 200 meshes, and the working pressure of the bag filter is 0.1-0.3MPa.
Example 1
An improved quick-drying aqueous steel pipe antirust varnish comprises the following components in parts by weight: 40 parts of modified acrylic resin, 15 parts of water-based modified alkyd resin, 0.01 part of flatting agent, 0.01 part of defoamer, 3 parts of ethanol, 0.1 part of pH regulator, 0.5 part of antirust auxiliary agent, 1 part of propylene glycol methyl ether, 1 part of dipropylene glycol butyl ether, 0.1 part of thickener and 15 parts of water.
The preparation method of the rust-proof varnish comprises the following steps:
step one: sequentially adding 1 part of dipropylene glycol butyl ether, 1 part of propylene glycol methyl ether, 0.01 part of flatting agent, 0.01 part of defoamer and 5 parts of water into a stirring kettle, setting the stirring speed to be 1000r/min, and stirring for 10 minutes to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding 40 parts of modified acrylic resin, 15 parts of water-based modified alkyd resin, 3 parts of ethanol, 0.1 part of pH regulator, 0.5 part of antirust auxiliary agent and 10 parts of water into the mixed solution A, setting the stirring speed to 1000r/min, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set to be 0.3MPa, then the filtration is started, the filtered finished product is cooled to room temperature, varnish is obtained, the varnish is packaged and put in storage according to the specification, and the mesh number of the filter bag of the bag filter is 200 meshes.
The rust inhibitive varnish prepared by the example 1 does not contain bubbles, has excellent appearance effect, has very smooth surface of a film after film formation, has general glossiness of the film, and has better impact resistance and salt spray resistance.
Example 2
An improved quick-drying aqueous steel pipe antirust varnish comprises the following components in parts by weight: 45 parts of modified acrylic resin, 25 parts of water-based modified alkyd resin, 0.03 part of flatting agent, 0.02 part of defoamer, 5 parts of ethanol, 0.4 part of pH regulator, 2 parts of antirust auxiliary agent, 1.5 parts of propylene glycol methyl ether, 1.5 parts of dipropylene glycol butyl ether, 0.5 part of thickener and 21.5 parts of water.
The preparation method of the rust-proof varnish comprises the following steps:
step one: sequentially adding 1.5 parts of dipropylene glycol butyl ether, 1.5 parts of propylene glycol methyl ether, 0.03 part of flatting agent, 0.02 part of defoamer and 6.5 parts of water into a stirring kettle, setting the stirring speed to 800r/min, and stirring for 20 minutes to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding 45 parts of modified acrylic resin, 25 parts of water-based modified alkyd resin, 5 parts of ethanol, 0.4 part of pH regulator, 2 parts of antirust auxiliary agent and 15 parts of water into the mixed solution A, setting the stirring speed to 800r/min, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set to be 0.3MPa, then the filtration is started, the filtered finished product is cooled to room temperature, varnish is obtained, the varnish is packaged and put in storage according to the specification, and the mesh number of the filter bag of the bag filter is 200 meshes.
The rust inhibitive varnish prepared by example 2 contained no bubbles, was excellent in appearance effect, was very smooth in the surface of the paint film after film formation, was very good in gloss of the paint film, and had excellent impact resistance and excellent salt spray resistance.
Example 3
An improved quick-drying aqueous steel pipe antirust varnish comprises the following components in parts by weight: 55 parts of modified acrylic resin, 30 parts of water-based modified alkyd resin, 0.05 part of flatting agent, 0.05 part of defoamer, 10 parts of ethanol, 0.2 part of pH regulator, 1 part of antirust auxiliary agent, 1.5 parts of propylene glycol methyl ether, 1.5 parts of dipropylene glycol butyl ether, 0.5 part of thickener and 25 parts of water.
The preparation method of the rust-proof varnish comprises the following steps:
step one: sequentially adding 1.5 parts of dipropylene glycol butyl ether, 1.5 parts of propylene glycol methyl ether, 0.05 part of flatting agent, 0.05 part of defoamer and 8 parts of water into a stirring kettle, setting the stirring speed to be 1000r/min, and stirring for 10-20 minutes to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding 55 parts of modified acrylic resin, 30 parts of water-based modified alkyd resin, 10 parts of ethanol, 0.2 part of pH regulator, 1 part of antirust auxiliary agent and 17 parts of water into the mixed solution A, setting the stirring speed to be 1000r/min, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set to be 0.2MPa, then the filtration is started, the filtered finished product is cooled to room temperature, varnish is obtained, the varnish is packaged and put in storage according to the specification, and the mesh number of the filter bag of the bag filter is 200 meshes.
The rust inhibitive varnish prepared by example 3 does not contain bubbles, has excellent appearance effect, very smooth surface of a film after film formation, good glossiness of the film, good impact resistance and excellent salt spray resistance.
TABLE 1
Table 2.
Claims (10)
1. The improved quick-drying aqueous steel pipe antirust varnish is characterized by comprising the following components in parts by weight: 40-55 parts of modified acrylic resin, 15-30 parts of water-based modified alkyd resin, 0.01-0.05 part of flatting agent, 0.01-0.05 part of defoamer, 3-10 parts of ethanol, 0.1-0.4 part of pH regulator, 0.5-2 parts of antirust auxiliary agent, 1-3 parts of propylene glycol methyl ether, 1-3 parts of dipropylene glycol butyl ether, 0.1-1 part of thickener and 15-25 parts of water.
2. The improved quick-drying aqueous steel pipe rust inhibitive varnish according to claim 1, wherein said defoaming agent is BYK-025.
3. The improved quick-drying aqueous steel pipe antirust varnish as claimed in claim 1, wherein the leveling agent is AFCONE-3585.
4. The improved quick-drying aqueous steel pipe rust inhibitive varnish according to claim 1, wherein said pH regulator is N, N-dimethylethanolamine.
5. The improved quick-drying aqueous steel pipe antirust varnish as claimed in claim 1, wherein the antirust auxiliary agent is CK20.
6. The improved quick-drying aqueous steel pipe rust inhibitive varnish according to claim 1, wherein said thickener is a polyurethane associative thickener.
7. The improved quick-drying aqueous steel pipe rust inhibitive varnish according to claim 1, which is characterized by comprising the following preparation steps:
step one: sequentially adding dipropylene glycol butyl ether, propylene glycol methyl ether, a flatting agent, a defoaming agent and water into a stirring kettle, and setting stirring speed and time to fully mix the components to obtain a mixed solution A;
step two: sequentially and slowly adding modified acrylic resin, water-based modified alkyd resin, ethanol, a pH regulator, an antirust auxiliary agent and water into the mixed solution A, setting the stirring speed, stirring for 1 hour, adding a thickening agent, and continuously stirring for 1 hour to obtain a mixed solution B;
step three: the outlet of the stirring kettle is connected with the inlet of the bag filter, the valve of the bag filter is slowly opened, the mixed liquid B slowly flows into and fills the bag filter, the working pressure is set, then the filtration is started, the filtered finished product is cooled to the room temperature, the varnish is obtained, and then the varnish is packaged and put in storage according to the specification.
8. The improved quick-drying aqueous steel pipe antirust varnish according to claim 1, wherein in the first step, the stirring speed is 800-1000r/min, and the stirring time is 10-20 minutes.
9. The improved quick-drying aqueous steel pipe antirust varnish according to claim 1, wherein the stirring speed in the second step is 800-1000r/min.
10. The improved quick-drying aqueous steel pipe antirust varnish as claimed in claim 1, wherein the mesh number of the filter bags of the bag filter in the third step is 200 meshes, and the working pressure of the bag filter is 0.1-0.3MPa.
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2023
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