Cutting fluid beneficial to improvement of anti-rust performance and production process of cutting fluid

Abstract

The invention discloses a cutting fluid helpful for improving anti-rust performance and a production process thereof, and belongs to the technical field of track shoe rust prevention, the cutting fluid comprises the following raw materials by weight: 15-24% of glycerin, 35-41% of vegetable fat, 6-11% of sulfonated betaine, 5-7% of a PEO-PPO-PEO triblock copolymer, 12-14% of carboxymethyl modified polyvinyl alcohol fiber, and the balance of water. Through the mode, in the preparation process of the carboxymethyl modified polyvinyl alcohol fiber, an ultrasonic atomization mode and a microwave treatment mode are adopted for preparing the carboxymethyl modified polyvinyl alcohol fiber, and the carboxymethyl modified polyvinyl alcohol fiber has influence effects on the aspects of improving the anti-rust performance of the cutting fluid, reducing the friction coefficient, reducing the wear scar diameter, improving the extreme pressure performance and the like. Meanwhile, sulfonated oil and machine oil are not used, so that the product is good in biodegradability, and harm to the environment can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of track plate anti-rusting, and in particular to a cutting fluid that helps to improve anti-rusting performance and a production process thereof. Background Art

[0002] During the production of excavator track shoes, cutting fluids are typically used for cooling, lubrication, and rust prevention. Cutting fluids effectively reduce tool and workpiece temperatures, reducing tool wear and improving machining accuracy and surface quality. The rust-inhibiting components in the cutting fluid form a protective film on the processed metal surface, resisting erosion from moisture and oxygen in the air and preventing the track shoes from rusting shortly after machining.

[0003] For example, Chinese invention patent CN103614181B discloses an environmentally friendly rust-proof cutting fluid composed of the following components by weight: 10-14% sulfonated oil, 6-10% barium petroleum sulfonate, 4-8% triethanolamine oleate soap, 8-16% rust inhibitor, and the balance machine oil. The rust inhibitor is composed of the following components by weight: 10-30 parts mercaptopropyltrimethoxysilane, 10-30 parts dodecenylsuccinic acid diethanolamide, and 10-30 parts O-(N-succinimidyl)-1,1,3,3-tetramethyluronium tetrafluoroborate.

[0004] However, the following technical problems still exist: the overall environmental performance of the product still needs to be improved, the sulfonated oil and mechanical oil in the ingredients have poor biodegradability and are difficult to decompose quickly in the natural environment, which may cause harm to the environment.

[0005] Based on this, the present invention designs a cutting fluid and a production process thereof that help improve rust prevention performance to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a cutting fluid and a production process thereof that help to improve the rust prevention performance.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A cutting fluid that helps improve rust prevention performance comprises the following raw materials in percentage by weight: 15-24% glycerol, 35-41% vegetable oil, 6-11% sulfonated betaine, 5-7% PEO-PPO-PEO triblock copolymer, 12-14% carboxymethyl modified polyvinyl alcohol fiber, and the balance water.

[0009] Furthermore, the preparation method of the carboxymethyl modified polyvinyl alcohol fiber is as follows: carboxymethyl chitosan is added to water to prepare a carboxymethyl chitosan solution, and then the polyvinyl alcohol fiber that has been pre-treated at a low temperature of -20 to -15°C for 2 to 4 hours is placed in a reaction chamber, and the carboxymethyl chitosan solution is atomized by an ultrasonic atomizer, and the atomizer power is controlled at 50 to 100W, so that the solution forms uniform and fine droplets and is passed into the reaction chamber, the temperature of the reaction chamber is controlled at 32 to 35°C, the reaction time is 25 to 40 minutes, and then the polyvinyl alcohol fiber is taken out and placed under microwave conditions for treatment, and the stirring speed is controlled at 100 to 200 r / min during the treatment process.

[0010] Furthermore, microwave power: 220-350W, processing time: 5-8min.

[0011] Furthermore, the molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000.

[0012] Furthermore, the material-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber and water is 1g:8-16g:100-120mL.

[0013] Furthermore, the vegetable oil is palm oil.

[0014] Furthermore, the sulfonated betaine is octadecyl hydroxypropyl sulfonated betaine.

[0015] In order to better achieve the purpose of the present invention, the present invention also provides a production process of a cutting fluid that helps to improve the anti-rust performance, comprising the following steps:

[0016] (1) Add water to a container and start stirring at a speed of 200-300 r / min. Slowly add carboxymethyl-modified polyvinyl alcohol fiber to the water, then add glycerol and stir for 1-2 hours.

[0017] (2) Add vegetable oil to another container and heat to 45-55°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 25-30 minutes at a stirring speed of 100-200 r / min;

[0018] (3) Add the product obtained in step (2) to the product obtained in step (1), while increasing the stirring speed to 350-500 r / min, and stirring for 1-1.5 hours to obtain a cutting fluid that helps improve the anti-rust performance.

[0019] Furthermore, in step (1), the addition rate of the carboxymethyl modified polyvinyl alcohol fiber is 2.5 to 3 g / min.

[0020] In order to better achieve the purpose of the present invention, the present invention also provides a cutting fluid prepared according to the production process, which helps to improve the anti-rust performance.

[0021] Compared to existing technologies, the present invention offers the following advantages: Ultrasonic atomization and microwave treatment are used in the preparation of carboxymethyl-modified polyvinyl alcohol fibers, enhancing the anti-rust properties of cutting fluids, reducing friction coefficients, reducing wear spot diameters, and improving extreme pressure performance. Furthermore, the present invention avoids the use of sulfonated oils and machine oils, resulting in a product with high biodegradability, which helps reduce environmental hazards. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: A process for producing a cutting fluid that helps improve rust prevention performance, comprising the following steps:

[0024] (1) Prepare the materials according to the following mass percentages: 15% glycerol, 41% vegetable oil (palm oil), 6% sulfonated betaine (octadecyl hydroxypropyl sulfonated betaine), 7% PEO-PPO-PEO triblock copolymer, 12% carboxymethyl modified polyvinyl alcohol fiber, and the balance water.

[0025] The preparation method of the carboxymethyl-modified polyvinyl alcohol fiber is as follows: carboxymethyl chitosan is added to water to prepare a carboxymethyl chitosan solution, and then polyvinyl alcohol fiber that has been previously treated at -20°C for 4 hours is placed in a reaction chamber. The carboxymethyl chitosan solution is atomized by an ultrasonic atomizer with a power controlled at 50W to form uniform and fine droplets, which are then passed into the reaction chamber. The temperature of the reaction chamber is controlled at 35°C for 25 minutes. The polyvinyl alcohol fiber is then removed and treated under microwave conditions with a stirring speed of 200 r / min. The microwave power is 220W, the treatment time is 8 minutes, and the molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000. The solid-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber, and water is 1g:8g:120mL.

[0026] (2) Add water to a container and start stirring at a speed of 200 r / min. Slowly add the carboxymethyl-modified polyvinyl alcohol fiber to the water at a rate of 3 g / min. Then add glycerol and stir for 1 hour.

[0027] (3) Add vegetable oil to another container and heat to 45°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 30 minutes at a stirring speed of 100 r / min.

[0028] (4) The product obtained in step (3) is added to the product obtained in step (2), and the stirring speed is increased to 350 r / min. The stirring reaction is carried out for 1.5 hours to obtain a cutting fluid that helps to improve the anti-rust performance.

[0029] Example 2: A process for producing a cutting fluid that helps improve rust prevention performance, comprising the following steps:

[0030] (1) Prepare the materials according to the following mass percentages: glycerol 24%, vegetable oil (palm oil) 35%, sulfonated betaine (octadecyl hydroxypropyl sulfonated betaine) 11%, PEO-PPO-PEO triblock copolymer 5%, carboxymethyl modified polyvinyl alcohol fiber 14%, and the balance water.

[0031] The preparation method of the carboxymethyl-modified polyvinyl alcohol fiber is as follows: carboxymethyl chitosan is added to water to prepare a carboxymethyl chitosan solution, and then polyvinyl alcohol fiber that has been previously treated at -15°C for 2 hours is placed in a reaction chamber. The carboxymethyl chitosan solution is atomized by an ultrasonic atomizer with the atomizer power controlled at 100W, so that the solution forms uniform and fine droplets and is passed into the reaction chamber. The temperature of the reaction chamber is controlled at 32°C, and the reaction time is 40 minutes. Thereafter, the polyvinyl alcohol fiber is removed and placed in a microwave treatment condition, and the stirring speed is controlled at 100 r / min during the treatment process. The microwave power is 350W, the treatment time is 5 minutes, and the molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000. The solid-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber, and water is 1g:16g:100mL.

[0032] (2) Add water to a container and stir at 300 r / min. Slowly add carboxymethyl-modified polyvinyl alcohol fiber to the water at a rate of 2.5 g / min. Then add glycerol and stir for 2 h.

[0033] (3) Add vegetable oil to another container and heat to 55°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 25 minutes at a stirring speed of 200 r / min.

[0034] (4) Add the product obtained in step (3) to the product obtained in step (2), while increasing the stirring speed to 500 r / min, and stirring the reaction for 1 hour to obtain a cutting fluid that helps improve the anti-rust performance.

[0035] Example 3: A process for producing a cutting fluid that helps improve rust prevention performance, comprising the following steps:

[0036] (1) Prepare the materials according to the following mass percentages: glycerol 20%, vegetable oil (palm oil) 38%, sulfonated betaine (octadecyl hydroxypropyl sulfonated betaine) 8%, PEO-PPO-PEO triblock copolymer 6.5%, carboxymethyl modified polyvinyl alcohol fiber 13%, and the balance water.

[0037] The preparation method of the carboxymethyl-modified polyvinyl alcohol fiber is as follows: carboxymethyl chitosan is added to water to prepare a carboxymethyl chitosan solution, and then polyvinyl alcohol fiber that has been previously treated at -18°C for 3 hours is placed in a reaction chamber. The carboxymethyl chitosan solution is atomized by an ultrasonic atomizer with the atomizer power controlled at 80W to form uniform and fine droplets of the solution and pass them into the reaction chamber. The temperature of the reaction chamber is controlled at 34°C and the reaction time is 30 minutes. Thereafter, the polyvinyl alcohol fiber is removed and treated under microwave conditions, with the stirring speed controlled at 180 r / min during the treatment process. The microwave power is 250W, the treatment time is 6 minutes, and the molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000. The solid-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber, and water is 1g:11g:110mL.

[0038] (2) Add water to a container and start stirring at a speed of 250 r / min. Slowly add the carboxymethyl-modified polyvinyl alcohol fiber to the water at a rate of 2.7 g / min. Then add glycerol and stir for 1.5 h.

[0039] (3) Add vegetable oil to another container and heat to 48°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 27 minutes at a stirring speed of 165 r / min.

[0040] (4) The product obtained in step (3) is added to the product obtained in step (2), while increasing the stirring speed to 400 r / min and stirring the reaction for 1.2 hours to obtain a cutting fluid that helps improve the anti-rust performance.

[0041] Comparative Example 1: A production process for cutting fluid, comprising the following steps:

[0042] (1) Prepare the materials according to the following mass percentages: glycerol 20%, vegetable oil (palm oil) 38%, sulfonated betaine (octadecyl hydroxypropyl sulfonated betaine) 8%, PEO-PPO-PEO triblock copolymer 6.5%, carboxymethyl modified polyvinyl alcohol fiber 13%, and the balance water.

[0043] The preparation method of the carboxymethyl-modified polyvinyl alcohol fiber is as follows: carboxymethyl chitosan is added to water to prepare a carboxymethyl chitosan solution, and then the polyvinyl alcohol fiber that has been previously treated at a low temperature of -18°C for 3 hours is placed in a reaction chamber. The temperature of the reaction chamber is controlled at 34°C, and the reaction time is 30 minutes. Thereafter, the polyvinyl alcohol fiber is removed and subjected to microwave treatment, and the stirring speed is controlled at 180 r / min during the treatment process. The microwave power is 250W, the treatment time is 6 minutes, and the molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000. The material-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber, and water is 1g:11g:110mL.

[0044] (2) Add water to a container and start stirring at a speed of 250 r / min. Slowly add the carboxymethyl-modified polyvinyl alcohol fiber to the water at a rate of 2.7 g / min. Then add glycerol and stir for 1.5 h.

[0045] (3) Add vegetable oil to another container and heat to 48°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 27 minutes at a stirring speed of 165 r / min.

[0046] (4) The product obtained in step (3) is added to the product obtained in step (2), while increasing the stirring speed to 400 r / min and stirring the reaction for 1.2 hours to obtain a cutting fluid that helps improve the anti-rust performance.

[0047] Comparative Example 2: A production process for cutting fluid, comprising the following steps:

[0048] (1) Prepare the materials according to the following mass percentages: glycerol 20%, vegetable oil (palm oil) 38%, sulfonated betaine (octadecyl hydroxypropyl sulfonated betaine) 8%, PEO-PPO-PEO triblock copolymer 6.5%, carboxymethyl modified polyvinyl alcohol fiber 13%, and the balance water.

[0049] The preparation method of the carboxymethyl-modified polyvinyl alcohol fiber comprises: adding carboxymethyl chitosan to water to prepare a carboxymethyl chitosan solution; then placing polyvinyl alcohol fiber that has been previously treated at -18°C for 3 hours into a reaction chamber; atomizing the carboxymethyl chitosan solution using an ultrasonic atomizer with an 80W power control to form uniform, fine droplets, which are then passed into the reaction chamber; controlling the temperature of the reaction chamber at 34°C; and reacting for 30 minutes. The molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000. The material-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber, and water is 1g:11g:110mL.

[0050] (2) Add water to a container and start stirring at a speed of 250 r / min. Slowly add the carboxymethyl-modified polyvinyl alcohol fiber to the water at a rate of 2.7 g / min. Then add glycerol and stir for 1.5 h.

[0051] (3) Add vegetable oil to another container and heat to 48°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 27 minutes at a stirring speed of 165 r / min.

[0052] (4) The product obtained in step (3) is added to the product obtained in step (2), while increasing the stirring speed to 400 r / min and stirring the reaction for 1.2 hours to obtain a cutting fluid that helps improve the anti-rust performance.

[0053] Experimental Example: The cutting fluids prepared in Examples 1 to 3 and Comparative Examples 1 to 2 were subjected to performance tests. The results are shown in Table 1.

[0054] Table 1 Performance test results

[0055]

[0056] The experimental results of Comparative Examples 1 and 2 show that the use of ultrasonic atomization and microwave treatment in the preparation of the carboxymethyl-modified polyvinyl alcohol fiber in Example 3 has an impact on improving the rust prevention performance of the cutting fluid, reducing the friction coefficient, reducing the wear spot diameter, and improving the extreme pressure performance. At the same time, the present invention does not use sulfonated oil and machine oil, and the product has good biodegradability, which helps reduce harm to the environment.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cutting fluid that helps improve rust prevention performance, characterized in that: The invention comprises the following raw materials in percentage by weight: 15-24% of glycerol, 35-41% of vegetable oil, 6-11% of sulfonated betaine, 5-7% of PEO-PPO-PEO triblock copolymer, 12-14% of carboxymethyl modified polyvinyl alcohol fiber and the balance of water.

2. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: The preparation method of the carboxymethyl modified polyvinyl alcohol fiber comprises the following steps: adding carboxymethyl chitosan to water to prepare a carboxymethyl chitosan solution; placing polyvinyl alcohol fiber that has been previously subjected to a low-temperature treatment at -20 to -15°C for 2 to 4 hours into a reaction chamber; atomizing the carboxymethyl chitosan solution through an ultrasonic atomizer with the power of the atomizer controlled at 50 to 100W to form uniform and fine droplets of the solution, which are then passed into the reaction chamber; controlling the temperature of the reaction chamber at 32 to 35°C and the reaction time at 25 to 40 minutes; then taking out the polyvinyl alcohol fiber and subjecting it to microwave treatment; and controlling the stirring speed at 100 to 200 r / min during the treatment.

3. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: Microwave power: 220~350W, processing time: 5~8min.

4. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: The molecular weight of the polyvinyl alcohol fiber is 60,000 to 150,000.

5. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: The material-liquid ratio of the carboxymethyl chitosan, polyvinyl alcohol fiber and water is 1g:8-16g:100-120mL.

6. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: The vegetable oil is palm oil.

7. The cutting fluid that helps improve rust prevention performance according to claim 1, characterized in that: The sulfonated betaine is octadecyl hydroxypropyl sulfonated betaine.

8. A process for producing a cutting fluid that helps improve rust resistance according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Add water to a container and start stirring at a speed of 200-300 r / min. Slowly add carboxymethyl-modified polyvinyl alcohol fiber to the water, then add glycerol and stir for 1-2 hours. (2) Add vegetable oil to another container and heat to 45-55°C, then add PEO-PPO-PEO triblock copolymer and sulfonated betaine in sequence, and stir for 25-30 minutes at a stirring speed of 100-200 r / min; (3) Add the product obtained in step (2) to the product obtained in step (1), while increasing the stirring speed to 350-500 r / min, and stirring for 1-1.5 hours to obtain a cutting fluid that helps improve the anti-rust performance.

9. The production process of the cutting fluid that helps to improve the anti-rust performance according to claim 8, characterized in that: In step (1), the addition rate of the carboxymethyl modified polyvinyl alcohol fiber is 2.5 to 3 g / min.

10. A cutting fluid prepared according to the production process of claim 8 or 9, which helps to improve the anti-rust performance.

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