CN111349944A - Tensile oil cleaning agent and preparation method thereof - Google Patents
Tensile oil cleaning agent and preparation method thereof Download PDFInfo
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- CN111349944A CN111349944A CN202010206720.9A CN202010206720A CN111349944A CN 111349944 A CN111349944 A CN 111349944A CN 202010206720 A CN202010206720 A CN 202010206720A CN 111349944 A CN111349944 A CN 111349944A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
Abstract
The invention relates to a tensile oil cleaning agent which is characterized by being prepared from the following raw materials in parts by weight: 3-6 parts of hyperbranched polytriazole hb-PTA-OEG, 10-20 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.5-1 part of PH buffer, 3-6 parts of sulfamate modified epoxy soybean oil and 30-50 parts of water. The invention also discloses a preparation method of the tensile oil cleaning agent. The cleaning agent for the stretching oil disclosed by the invention has the advantages of good cleaning effect, good performance stability, small corrosion to metal, safety and environmental protection in use, and the cleaned metal product not only keeps good comprehensive performance, but also has long service life.
Description
Technical Field
The invention belongs to the technical field of industrial cleaning agents, and particularly relates to a cleaning agent for stretching oil and a preparation method thereof.
Background
At present, a great number of metal products are produced in daily life, and the metal products made of metal materials are closely related to the life of people, and the development degree of the metal products becomes one of the marks of modern civilization. The metal products often need to relate to a stamping and stretching process in the casting process, products obtained by stamping and stretching can have more excellent mechanical properties, and the requirements on the stamping and stretching process are higher and higher along with the improvement of the precision degree of the metal products. Particularly, in the heavy-load stamping and stretching process, a lubricating medium with medium and high viscosity is needed to isolate the die from the workpiece, so that the die is prevented from being damaged by pulling, and the workpiece stretching success rate is improved. The lubricating medium is metal drawing oil, and the metal drawing oil becomes an essential agent in the metal impact drawing process.
The metal drawing oil is prepared by blending high-quality mineral base oil, compounded high-performance vulcanized lard oil and vulcanized fatty acid ester as main agents, is dedicated to stamping and drawing processing of stainless steel, generally has high viscosity to ensure continuous excellent and effective oil film thickness, avoids local scratching or sintering of a die, has strong adhesive force, effectively lubricates a workpiece and the die, and can resist high temperature generated during metal friction. However, the kinematic viscosity at 40 ℃ is more than 30c, and the higher kinematic viscosity can reach thousands of viscosities, so that the residual substances on the workpiece after the processing are difficult to clean and remove, the appearance of a metal product is influenced, and irreversible corrosion can be formed on the surface of the aluminum alloy after the processing is carried out for a long time, and the quality and the service life of the product are seriously influenced. Therefore, it is very important to select a proper cleaning agent for cleaning the tensile oil.
In the prior art, a large amount of hydrocarbon solvent is often used and is assisted by equipment such as ultrasound and the like for cleaning, so that resources are wasted and the environment is polluted, and although the cleaning effect of the cleaning agent for the strong acid or strong base metal tensile oil on the market is obvious, certain corrosion is generated on the surface of metal during cleaning, and the risk possibly exists on the performance of the metal.
Chinese patent CN104313608A discloses an environment-friendly aluminum product cleaning agent, which is used for cleaning the surface of an aluminum piece, has good degreasing and rust prevention capabilities, and is relatively strong in acidity. The Chinese invention patent CN103343356A discloses a multifunctional metal water-based antirust and cleaning agent, a preparation method and application thereof, the cleaning agent is suitable for metal antirust and cleaning in metal processing and machinery manufacturing industries and used as an antirust additive, but the preparation process is relatively complex, involves a plurality of heating processes, and has high cost.
The invention discloses a Chinese patent with application number of 201810670072.5, which relates to a tensile oil cleaning agent and a preparation method thereof, wherein the tensile oil cleaning agent comprises the following components in parts by weight: 8-15 parts of isomeric fatty alcohol-polyoxyethylene ether; 10-20 parts of 1-alkyl-3-methylimidazole halogen salt; 0.5-0.8 part of a buffering agent; 5-10 parts of hydroxyethylidene diphosphate; 5-10 parts of oxalic acid; 3-5 parts of a corrosion inhibitor; 0.5-1 part of an antirust agent; 30-50 parts of water. Thus, the buffering of acidic components can be effectively realized, and the corrosion of the strong acidity of the acidic components to products can be avoided; and the emulsifying dispersion of components such as isomeric fatty alcohol-polyoxyethylene ether and the like can be effectively realized, and the cleaning effect is improved. However, the 1-alkyl-3-methylimidazole halogen salt contains imidazole cations, and is easily bonded with carboxyl groups on hydroxyethylidene diphosphate through ionic bonds, so that the emulsifying property of the cleaning agent is reduced, and the property stability of the cleaning agent needs to be further improved.
Therefore, the development of the cleaning agent for the drawing oil, which has the advantages of good cleaning effect, good performance stability, small corrosion to metal, safe and environment-friendly use, good comprehensive performance of the cleaned metal product and long service life, meets the market demand, has wide market value and application prospect, and has very important significance for promoting the development of the metal cleaning agent industry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the tensile oil cleaning agent and the preparation method thereof, and the preparation method has the advantages of convenient operation, low preparation cost and suitability for continuous large-scale production; the tensile oil cleaning agent prepared by the preparation method has the advantages of good cleaning effect, good performance stability, small corrosion to metal, safe and environment-friendly use, and the cleaned metal product not only keeps good comprehensive performance, but also has long service life.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the tensile oil cleaning agent is prepared from the following raw materials in parts by weight: 3-6 parts of hyperbranched polytriazole hb-PTA-OEG, 10-20 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.5-1 part of PH buffer, 3-6 parts of sulfamate modified epoxy soybean oil and 30-50 parts of water.
Preferably, the preparation method of the hyperbranched polytriazole hb-PTA-OEG is as follows: chinese patent application No. 201410583193.8, example 1.
Further, the preparation method of the triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer comprises the following steps: adding triethylene glycol methyl ether methacrylate, maleimide-tri (ethylene glycol) -propionic acid, 2-methacryloyloxyethyl phosphorylcholine, 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-6 hours at 65-75 ℃ in the atmosphere of nitrogen or inert gas, and (3) removing the solvent by rotary evaporation to obtain a triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer.
Preferably, the mass ratio of the triethylene glycol methyl ether methacrylate, the maleimide-tri (ethylene glycol) -propionic acid, the 2-methacryloyloxyethyl phosphorylcholine, the 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester, the initiator and the high-boiling point solvent is 1:1 (0.5-0.8) to 0.6 (0.02-0.03) to (10-20).
Preferably, the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone.
Preferably, the inert gas is any one of helium, neon and argon.
Preferably, the PH buffer is at least one of triethanolamine and tris.
Preferably, the preparation method of the aminomethane sulfonic acid modified epoxidized soybean oil comprises the following steps: adding the aminomethanesulfonic acid, the epoxidized soybean oil and the alkaline catalyst into tetrahydrofuran, refluxing and stirring at 70-80 ℃ for 6-8 hours, cooling to room temperature, performing rotary evaporation to remove the tetrahydrofuran, washing the product with water for 3-6 times, and performing rotary evaporation to remove water to obtain the aminomethanesulfonic acid modified epoxidized soybean oil.
Preferably, the mol ratio of the aminomethane sulfonic acid, the epoxidized soybean oil, the basic catalyst and the tetrahydrofuran is 6:1 (4-6) to (20-30).
Preferably, the alkaline catalyst is at least one of sodium hydroxide, sodium carbonate, potassium hydroxide and potassium carbonate.
Another object of the present invention is to provide a method for preparing a cleaning agent for tensile oil, which comprises the following steps: mixing the raw materials in parts by weight, stirring for 1-2 hours at 60-80 ℃, cooling to room temperature, and filling after the inspection is qualified to obtain the finished product of the tensile oil cleaning agent.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the preparation method is convenient to operate, low in preparation cost and suitable for continuous large-scale production; the tensile oil cleaning agent prepared by the preparation method has the advantages of good cleaning effect, good performance stability, small corrosion to metal, safe and environment-friendly use, and the cleaned metal product not only keeps good comprehensive performance, but also has long service life. Firstly, hyperbranched polytriazole hb-PTA-OEG is introduced, the solubility of the hyperbranched polytriazole hb-PTA-OEG can be improved due to the introduction of the hyperbranched structure, so that the obtained tensile oil cleaning agent is better in performance stability and longer in quality guarantee period, the polytriazole structure can play a role in rust prevention and corrosion inhibition and better protects metal, and the contact area between the polytriazole structure and the metal can be increased due to the addition of the polymer, and the comprehensive performance of the polytriazole structure is improved; and the oil stain also has the capability of complexing with metal ions, so that the oil stain is more easily separated from the metal surface and dispersed into water. The added triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer has synergistic effect of all structural units, so that the cleaning agent has more stable performance, stronger decontamination capability and better antirust and corrosion inhibition effects. The amino methanesulfonic acid modified epoxy soybean oil and other components have synergistic effect, so that the dosage of effective components can be reduced, the corrosion to metal is avoided, the emulsifying and dispersing effect is improved, and the cleaning capacity is improved.
Detailed Description
The invention relates to a cleaning agent for stretching oil, which is prepared from the following raw materials in parts by weight: 3-6 parts of hyperbranched polytriazole hb-PTA-OEG, 10-20 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.5-1 part of PH buffer, 3-6 parts of sulfamate modified epoxy soybean oil and 30-50 parts of water.
Preferably, the preparation method of the hyperbranched polytriazole hb-PTA-OEG is as follows: chinese invention patent example 1 with application number 201410583193.8; the preparation method of the triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer comprises the following steps: adding triethylene glycol methyl ether methacrylate, maleimide-tri (ethylene glycol) -propionic acid, 2-methacryloyloxyethyl phosphorylcholine, 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-6 hours at 65-75 ℃ in the atmosphere of nitrogen or inert gas, and (3) removing the solvent by rotary evaporation to obtain a triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer.
Preferably, the mass ratio of the triethylene glycol methyl ether methacrylate, the maleimide-tri (ethylene glycol) -propionic acid, the 2-methacryloyloxyethyl phosphorylcholine, the 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester, the initiator and the high-boiling point solvent is 1:1 (0.5-0.8) to 0.6 (0.02-0.03) to (10-20); the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile; the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the inert gas is any one of helium, neon and argon; the pH buffer is at least one of triethanolamine and tris (hydroxymethyl) aminomethane.
Preferably, the preparation method of the aminomethane sulfonic acid modified epoxidized soybean oil comprises the following steps: adding the aminomethanesulfonic acid, the epoxidized soybean oil and the alkaline catalyst into tetrahydrofuran, refluxing and stirring at 70-80 ℃ for 6-8 hours, cooling to room temperature, performing rotary evaporation to remove the tetrahydrofuran, washing the product with water for 3-6 times, and performing rotary evaporation to remove water to obtain the aminomethanesulfonic acid modified epoxidized soybean oil; the mol ratio of the aminomethane sulfonic acid to the epoxidized soybean oil to the alkaline catalyst to the tetrahydrofuran is 6:1 (4-6) to (20-30); the alkaline catalyst is at least one of sodium hydroxide, sodium carbonate, potassium hydroxide and potassium carbonate; the epoxidized soybean oil is purchased from double hong chemical technology limited company in salt cities.
Another object of the present invention is to provide a method for preparing a cleaning agent for tensile oil, which comprises the following steps: mixing the raw materials in parts by weight, stirring for 1-2 hours at 60-80 ℃, cooling to room temperature, and filling after the inspection is qualified to obtain the finished product of the tensile oil cleaning agent.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the preparation method is convenient to operate, low in preparation cost and suitable for continuous large-scale production; the tensile oil cleaning agent prepared by the preparation method has the advantages of good cleaning effect, good performance stability, small corrosion to metal, safe and environment-friendly use, and the cleaned metal product not only keeps good comprehensive performance, but also has long service life. Firstly, hyperbranched polytriazole hb-PTA-OEG is introduced, the solubility of the hyperbranched polytriazole hb-PTA-OEG can be improved due to the introduction of the hyperbranched structure, so that the obtained tensile oil cleaning agent is better in performance stability and longer in quality guarantee period, the polytriazole structure can play a role in rust prevention and corrosion inhibition and better protects metal, and the contact area between the polytriazole structure and the metal can be increased due to the addition of the polymer, and the comprehensive performance of the polytriazole structure is improved; and the oil stain also has the capability of complexing with metal ions, so that the oil stain is more easily separated from the metal surface and dispersed into water. The added triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer has synergistic effect of all structural units, so that the cleaning agent has more stable performance, stronger decontamination capability and better antirust and corrosion inhibition effects. The amino methanesulfonic acid modified epoxy soybean oil and other components have synergistic effect, so that the dosage of effective components can be reduced, the corrosion to metal is avoided, the emulsifying and dispersing effect is improved, and the cleaning capacity is improved.
The following detailed description of preferred embodiments of the invention will be made.
Example 1
Embodiment 1 provides a tensile oil cleaning agent, which is prepared from the following raw materials in parts by weight: 3 parts of hyperbranched polytriazole hb-PTA-OEG, 10 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.5 part of triethanolamine, 3 parts of aminomethanesulfonic acid modified epoxidized soybean oil and 30 parts of water.
The preparation method of the triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer comprises the following steps: adding triethylene glycol methyl ether methacrylate, maleimide-tri (ethylene glycol) -propionic acid, 2-methacryloyloxyethyl phosphorylcholine, 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester and azobisisobutyronitrile into dimethyl sulfoxide, stirring and reacting for 3 hours at 65 ℃ in a nitrogen atmosphere, and then removing the solvent by rotary evaporation to obtain the triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer.
The mass ratio of the triethylene glycol methyl ether methacrylate to the maleimide-tri (ethylene glycol) -propionic acid to the 2-methacryloyloxyethyl phosphorylcholine to the 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester to the azobisisobutyronitrile to the dimethyl sulfoxide is 1:1:0.5:0.6:0.02: 10.
The preparation method of the aminomethane sulfonic acid modified epoxidized soybean oil comprises the following steps: adding the aminomethanesulfonic acid, the epoxidized soybean oil and the sodium hydroxide into tetrahydrofuran, refluxing and stirring at 70 ℃ for 6 hours, cooling to room temperature, performing rotary evaporation to remove the tetrahydrofuran, washing the product with water for 3 times, and finally performing rotary evaporation to remove water to obtain the aminomethanesulfonic acid modified epoxidized soybean oil; the mol ratio of the aminomethanesulfonic acid to the epoxidized soybean oil to the sodium hydroxide to the tetrahydrofuran is 6:1:4: 20.
The preparation method of the cleaning agent for the stretching oil is characterized by comprising the following steps: mixing the raw materials in parts by weight, stirring for 1 hour at 60 ℃, cooling to room temperature, and filling after the inspection is qualified to obtain the finished product of the tensile oil cleaning agent.
Example 2
Embodiment 2 provides a tensile oil cleaning agent and a preparation method thereof, which are basically the same as those in embodiment 1, except that the tensile oil cleaning agent is prepared from the following raw materials in parts by weight: 4 parts of hyperbranched polytriazole hb-PTA-OEG, 13 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.6 part of tris (hydroxymethyl) aminomethane, 4 parts of aminomethane sulfonic acid modified epoxidized soybean oil and 35 parts of water.
Example 3
Embodiment 3 provides a tensile oil cleaning agent and a preparation method thereof, which are basically the same as those in embodiment 1, except that the tensile oil cleaning agent is prepared from the following raw materials in parts by weight: 4.5 parts of hyperbranched polytriazole hb-PTA-OEG, 15 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.7 part of triethanolamine, 4.5 parts of aminomethanesulfonic acid modified epoxy soybean oil and 40 parts of water.
Example 4
Embodiment 4 provides a tensile oil cleaning agent and a preparation method thereof, which are basically the same as those in embodiment 1, except that the tensile oil cleaning agent is prepared from the following raw materials in parts by weight: 5 parts of hyperbranched polytriazole hb-PTA-OEG, 18 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.9 part of tris (hydroxymethyl) aminomethane, 5.5 parts of aminomethane sulfonic acid modified epoxidized soybean oil and 48 parts of water.
Example 5
Embodiment 5 provides a tensile oil cleaning agent and a preparation method thereof, which are basically the same as those in embodiment 1, except that the tensile oil cleaning agent is prepared from the following raw materials in parts by weight: 6 parts of hyperbranched polytriazole hb-PTA-OEG, 20 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 1 part of PH buffer, 6 parts of amino methane sulfonic acid modified epoxy soybean oil and 50 parts of water.
Comparative example 1
Comparative example 1 provides a stretcher oil cleaner and a method of making the same, which is essentially identical to that of example 1 except that no hyperbranched polytriazole hb-PTA-OEG is added to the formulation.
Comparative example 2
Comparative example 2 provides a tensile oil cleaner and a method of making the same, which is essentially the same as in example 1 except that the formulation does not include the addition of the triethylene glycol methyl ether methacrylate/maleimide-tris (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-propenoic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer.
Comparative example 3
Comparative example 3 provides a tensile oil cleaner and method of making the same, which is essentially the same as in example 1 except that no aminomethane sulfonic acid modified epoxidized soybean oil was added to the formulation.
Comparative example 4
Comparative example 4 provides a tensile oil cleaning agent and a preparation method thereof, which are the same as the embodiment 1 of the Chinese patent CN 108486580A.
To further illustrate the technical effects of the tensile oil cleaning agent in the examples of the present invention, the tensile oil cleaning agent in each example was tested for oil stain cleaning rate, stability (-10 ℃), rust resistance and surface smoothness (visual inspection) according to the corresponding national standard test methods, and the results are shown in table 1.
TABLE 1 Performance based on tensile oil cleaners in examples 1-5, comparative examples 1-4
| Test items | Oil stain cleaning rate | Stability (-10 ℃ C.) | Antirust property | Surface finish (visual inspection) |
| Unit of | ％ | — | — | — |
| Example 1 | 98.5 | Stabilization | Without obvious change | Without obvious change |
| Example 2 | 98.7 | Stabilization | Without obvious change | Without obvious change |
| Example 3 | 98.8 | Stabilization | Without obvious change | Without obvious change |
| Example 4 | 99.0 | Stabilization | Without obvious change | Without obvious change |
| Example 5 | 99.4 | Stabilization | Without obvious change | Without obvious change |
| Comparative example 1 | 93.4 | Instability of the film | Without obvious change | Without obvious change |
| Comparative example 2 | 93.2 | Instability of the film | Without obvious change | Without obvious change |
| Comparative example 3 | 94.0 | Instability of the film | Without obvious change | Without obvious change |
| Comparative example 4 | 90.0 | Instability of the film | Without obvious change | Without obvious change |
As can be seen from Table 1, the tensile oil detergents of examples 1 to 5 have significantly better performance than the tensile oil detergent of comparative example, and are superior in oil stain cleaning efficiency, stability (-10 ℃), rust preventive property and surface smoothness (visual inspection), which are the results of synergistic effect of the respective components.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The cleaning agent for the stretching oil is characterized by being prepared from the following raw materials in parts by weight: 3-6 parts of hyperbranched polytriazole hb-PTA-OEG, 10-20 parts of triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer, 0.5-1 part of PH buffer, 3-6 parts of sulfamate modified epoxy soybean oil and 30-50 parts of water.
2. The stretching oil cleaner as claimed in claim 1, wherein the preparation method of the copolymer of triethylene glycol methyl ether methacrylate/maleimide-tris (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester comprises the following steps: adding triethylene glycol methyl ether methacrylate, maleimide-tri (ethylene glycol) -propionic acid, 2-methacryloyloxyethyl phosphorylcholine, 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester and an initiator into a high boiling point solvent, stirring and reacting for 3-6 hours at 65-75 ℃ in the atmosphere of nitrogen or inert gas, and (3) removing the solvent by rotary evaporation to obtain a triethylene glycol methyl ether methacrylate/maleimide-tri (ethylene glycol) -propionic acid/2-methacryloyloxyethyl phosphorylcholine/2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester copolymer.
3. The tensile oil cleaner as claimed in claim 2, wherein the mass ratio of the triethylene glycol methyl ether methacrylate, the maleimide-tri (ethylene glycol) -propionic acid, the 2-methacryloyloxyethyl phosphorylcholine, the 2-methyl-2-acrylic acid-2- (2-oxo-1-imidazolinyl) ethyl ester, the initiator and the high boiling point solvent is 1:1 (0.5-0.8):0.6 (0.02-0.03): 10-20.
4. The tensile oil cleaner of claim 2, wherein the initiator is at least one of azobisisobutyronitrile and azobisisoheptonitrile.
5. The stretching oil cleaning agent as claimed in claim 2, wherein the high boiling point solvent is at least one of dimethyl sulfoxide, N-dimethylformamide, N-dimethylacetamide and N-methylpyrrolidone; the inert gas is any one of helium, neon and argon.
6. The tensile oil cleaner of claim 1, wherein the PH buffer is at least one of triethanolamine and tris.
7. The tensile oil cleaning agent according to claim 1, wherein the preparation method of the aminomethane sulfonic acid modified epoxidized soybean oil comprises the following steps: adding the aminomethanesulfonic acid, the epoxidized soybean oil and the alkaline catalyst into tetrahydrofuran, refluxing and stirring at 70-80 ℃ for 6-8 hours, cooling to room temperature, performing rotary evaporation to remove the tetrahydrofuran, washing the product with water for 3-6 times, and performing rotary evaporation to remove water to obtain the aminomethanesulfonic acid modified epoxidized soybean oil.
8. The tensile oil cleaner of claim 7, wherein the molar ratio of the aminomethane sulfonic acid, the epoxidized soybean oil, the basic catalyst and the tetrahydrofuran is 6:1 (4-6) to (20-30).
9. The tensile oil cleaner of claim 7, wherein the basic catalyst is at least one of sodium hydroxide, sodium carbonate, potassium hydroxide, and potassium carbonate.
10. The stretching oil cleaning agent as claimed in any one of claims 1 to 9, wherein the preparation method of the stretching oil cleaning agent comprises the following steps: mixing the raw materials in parts by weight, stirring for 1-2 hours at 60-80 ℃, cooling to room temperature, and filling after the inspection is qualified to obtain the finished product of the tensile oil cleaning agent.
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| CN112778862A (en) * | 2021-01-08 | 2021-05-11 | 上海涂固安高科技有限公司 | Pretreatment agent for special paint for metal and preparation method thereof |
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| CN112778862A (en) * | 2021-01-08 | 2021-05-11 | 上海涂固安高科技有限公司 | Pretreatment agent for special paint for metal and preparation method thereof |
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