Antioxidant composition for low-altitude vehicle chain lubricating oil and preparation method thereof

Abstract

The invention relates to an antioxidant composition for low-altitude vehicle chain lubricating oil. The antioxidant composition comprises an antioxidant matrix, an additive and a synergist, the substance mass ratio of the antioxidant matrix to the additive to the synergist is (4-7): (3-5): 2. According to the antioxidant composition disclosed by the invention, the antioxidant matrix is matched with the additive and the synergist, meanwhile, the added additive is subjected to activation improvement by adopting kaolin through a potassium permanganate solution and then is matched with ultrasonic improvement of additive liquid, and a first additive, beta-cyclodextrin solution and a second additive in the additive liquid are subjected to mutual ball-milling improvement; through co-matching improvement of the raw materials, the synergistic effect of the obtained synergist and the additive is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of lubricating oils, and in particular to an antioxidant composition for low-altitude vehicle chain lubricating oil and a preparation method thereof. Background Art

[0002] Low-altitude carrier chains are widely used in industrial production, logistics and transportation, and other fields, such as conveyor chains in automated production lines, lifting chains in logistics warehousing, etc. In actual operation, the chains are in a state of high load, high temperature, and contact with environmental factors such as oxygen and water vapor for a long time. Lubricating oil, as a key medium to ensure the normal operation of the chain and reduce wear, is very prone to oxidation reactions under these conditions. The antioxidants used in existing lubricating oils have general antioxidant properties in the application of lubricating oils, and the thermal stability of antioxidant products is poor, which limits the efficiency of the product. Based on this, the present invention further improves and processes them. Summary of the Invention

[0003] In view of the defects of the prior art, the purpose of the present invention is to provide an antioxidant composition for low-altitude vehicle chain lubricating oil and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0004] The present invention solves the technical problem by adopting the following technical solutions: The present invention provides an antioxidant composition for low-altitude vehicle chain lubricating oil, the antioxidant composition comprising an antioxidant base, an additive, and a synergist; the mass ratio of the antioxidant base, the additive, and the synergist is (4-7): (3-5): 2; The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

[0005] Preferably, the preparation method of the additive is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 3-5 parts of calcium carbonate, 4-7 parts of calcium sulfate whiskers and 2-5 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 2-3 parts of β-cyclodextrin and 1-3 parts of silane coupling agent KH560 to 5-8 parts of 95% by mass ethanol solution, stir evenly, and obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

[0006] Preferably, the mass fraction of the potassium permanganate solution is 5-8%; the sintering temperature of the sintering treatment is 350-400° C., and the sintering time is 1 hour.

[0007] Preferably, the ball milling speed of the blending ball milling treatment is 1500-2000 r / min, and the ball milling is 2 hours; the ultrasonic power of the ultrasonic treatment is 350-400 W, and the ultrasonic treatment is 1 hour.

[0008] Preferably, the preparation method of the synergist is: S01: 3-5 parts of diatomaceous earth, 2-4 parts of phosphoric acid solution, 1-2 parts of titanium oxide, and 2-4 parts of lanthanum chloride solution are mixed evenly to obtain a synergistic solution; S02: preheating the mesoporous silica at 60-70° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 15-18% of the total amount of the mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

[0009] Preferably, the mass fraction of the phosphoric acid solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.

[0010] Preferably, the ball milling treatment is performed at a speed of 1000-1200 r / min and the ball milling is performed for 2 hours.

[0011] The present invention also provides a method for preparing an antioxidant composition for low-altitude vehicle chain lubricating oil, comprising the following steps: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

[0012] Preferably, the stirring speed of the stirring treatment is 550-750 r / min, and the stirring time is 1 hour.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The antioxidant composition of the present invention adopts an antioxidant matrix, an additive and a synergist. The additive is activated and improved by kaolin with a potassium permanganate solution, and then ultrasonically improved by an additive liquid. A first additive, a beta-cyclodextrin liquid and a second additive in the additive liquid are mutually ball-milled and improved. The first additive is blended and optimized by calcium carbonate, calcium sulfate whiskers and yttrium oxide, and then blended with a second additive prepared by sintering halloysite tubes and boron nitride. The beta-cyclodextrin liquid is blended with beta-cyclodextrin and a silane coupling agent KH560. The additive liquid obtained by co-blending and optimizing the raw materials enhances the synergistic effect between the bentonite and the matrix, thereby improving the antioxidant property of the product and optimizing the thermal stability of the antioxidant product. The synergist is preheated by mesoporous silica, and then blended and optimized with a synergistic liquid prepared by diatomaceous earth, a phosphoric acid solution, titanium oxide and a lanthanum chloride solution. The co-blending and improvement of the raw materials further enhances the synergistic effect between the synergist and the additive. DETAILED DESCRIPTION

[0014] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. 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.

[0015] The antioxidant composition of this embodiment for low-altitude vehicle chain lubricant comprises an antioxidant base, an additive, and a synergist; the mass ratio of the antioxidant base, the additive, and the synergist is (4-7): (3-5): 2; The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

[0016] The preparation method of the additive of this embodiment is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 3-5 parts of calcium carbonate, 4-7 parts of calcium sulfate whiskers and 2-5 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 2-3 parts of β-cyclodextrin and 1-3 parts of silane coupling agent KH560 to 5-8 parts of 95% by mass ethanol solution, stir evenly, and obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

[0017] Preferably, the mass fraction of the potassium permanganate solution is 5-8%; the sintering temperature of the sintering treatment is 350-400° C., and the sintering time is 1 hour.

[0018] In the blending ball milling treatment of this embodiment, the ball milling speed is 1500-2000 r / min, and the ball milling is 2 hours; the ultrasonic power of the ultrasonic treatment is 350-400 W, and the ultrasonic treatment is 1 hour.

[0019] The preparation method of the synergist of this embodiment is: S01: 3-5 parts of diatomaceous earth, 2-4 parts of phosphoric acid solution, 1-2 parts of titanium oxide, and 2-4 parts of lanthanum chloride solution are mixed evenly to obtain a synergistic solution; S02: preheating the mesoporous silica at 60-70° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 15-18% of the total amount of the mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

[0020] The mass fraction of the phosphoric acid solution in this embodiment is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.

[0021] The ball milling process in this embodiment was performed at a ball milling speed of 1000-1200 r / min for 2 h.

[0022] The method for preparing an antioxidant composition for low-altitude vehicle chain lubricant of this embodiment comprises the following steps: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

[0023] The stirring speed of the stirring process in this embodiment is 550-750 r / min, and the stirring is performed for 1 hour.

[0024] Example 1. The antioxidant composition of this embodiment for low-altitude vehicle chain lubricant comprises an antioxidant base, an additive, and a synergist; the mass ratio of the antioxidant base, the additive, and the synergist is 4:3:2; The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

[0025] The preparation method of the additive of this embodiment is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 3 parts of calcium carbonate, 4 parts of calcium sulfate whiskers and 2 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 2 parts of β-cyclodextrin and 1 part of silane coupling agent KH560 to 5 parts of 95% ethanol solution and stir evenly to obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

[0026] Preferably, the mass fraction of the potassium permanganate solution is 5%; the sintering temperature of the sintering treatment is 350° C., and the sintering time is 1 hour.

[0027] In the blending ball milling treatment of this embodiment, the ball milling speed is 1500 r / min, and the ball milling is performed for 2 hours; the ultrasonic power of the ultrasonic treatment is 350 W, and the ultrasonic treatment is performed for 1 hour.

[0028] The preparation method of the synergist of this embodiment is: S01: 3 parts of diatomaceous earth, 2 parts of phosphoric acid solution, 1 part of titanium oxide and 2 parts of lanthanum chloride solution are mixed evenly to obtain a synergistic solution; S02: preheating the mesoporous silica at 60° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 15% of the total amount of the mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

[0029] The mass fraction of the phosphoric acid solution in this embodiment is 5%; the mass fraction of the lanthanum chloride solution is 2%.

[0030] The ball milling process in this embodiment was performed at a speed of 1000 r / min for 2 h.

[0031] The method for preparing an antioxidant composition for low-altitude vehicle chain lubricant of this embodiment comprises the following steps: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

[0032] The stirring speed of the stirring process in this embodiment is 550 r / min, and the stirring is carried out for 1 hour.

[0033] Example 2. The antioxidant composition of this embodiment for low-altitude vehicle chain lubricant comprises an antioxidant base, an additive, and a synergist; the mass ratio of the antioxidant base, the additive, and the synergist is 7:5:2;

[0034] The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

[0035] The preparation method of the additive of this embodiment is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 5 parts of calcium carbonate, 7 parts of calcium sulfate whiskers and 5 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 3 parts of β-cyclodextrin and 3 parts of silane coupling agent KH560 to 8 parts of 95% ethanol solution and stir evenly to obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

[0036] Preferably, the mass fraction of the potassium permanganate solution is 8%; the sintering temperature of the sintering treatment is 400° C., and the sintering time is 1 hour.

[0037] In the blending ball milling treatment of this embodiment, the ball milling speed is 2000 r / min, and the ball milling is performed for 2 hours; the ultrasonic power of the ultrasonic treatment is 400 W, and the ultrasonic treatment is performed for 1 hour.

[0038] The preparation method of the synergist of this embodiment is: S01: 5 parts of diatomaceous earth, 4 parts of phosphoric acid solution, 2 parts of titanium oxide and 4 parts of lanthanum chloride solution are mixed evenly to obtain a synergistic solution; S02: preheating the mesoporous silica at 70° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 18% of the total amount of the mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

[0039] The mass fraction of the phosphoric acid solution in this embodiment is 8%; the mass fraction of the lanthanum chloride solution is 5%.

[0040] The ball milling process in this embodiment was performed at a speed of 1200 r / min for 2 h.

[0041] The method for preparing an antioxidant composition for low-altitude vehicle chain lubricant of this embodiment comprises the following steps: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

[0042] The stirring speed of the stirring process in this embodiment is 750 r / min, and the stirring is carried out for 1 hour.

[0043] Example 3. The antioxidant composition of this embodiment for low-altitude vehicle chain lubricant comprises an antioxidant base, an additive, and a synergist; the mass ratio of the antioxidant base, the additive, and the synergist is 5.5:4:2; The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

[0044] The preparation method of the additive of this embodiment is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 4 parts of calcium carbonate, 5.5 parts of calcium sulfate whiskers and 3.5 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 2.5 parts of β-cyclodextrin and 2 parts of silane coupling agent KH560 to 6.5 parts of 95% ethanol solution and stir evenly to obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

[0045] Preferably, the mass fraction of the potassium permanganate solution is 6.5%; the sintering temperature of the sintering treatment is 375° C., and the sintering time is 1 hour.

[0046] In the blending ball milling treatment of this embodiment, the ball milling speed is 1750 r / min, and the ball milling is performed for 2 hours; the ultrasonic power of the ultrasonic treatment is 370 W, and the ultrasonic treatment is performed for 1 hour.

[0047] The preparation method of the synergist of this embodiment is: S01: Blend 4 parts of diatomaceous earth, 3 parts of phosphoric acid solution, 1.5 parts of titanium oxide, and 3 parts of lanthanum chloride solution to obtain a synergistic solution; S02: preheating the mesoporous silica at 65° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 16.5% of the total amount of mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

[0048] The mass fraction of the phosphoric acid solution in this embodiment is 6.5%; the mass fraction of the lanthanum chloride solution is 3.5%.

[0049] The ball milling process in this embodiment was performed at a ball milling speed of 1100 r / min and the ball milling was performed for 2 h.

[0050] The method for preparing an antioxidant composition for low-altitude vehicle chain lubricant of this embodiment comprises the following steps: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

[0051] The stirring speed of the stirring process in this embodiment is 600 r / min, and the stirring is carried out for 1 hour.

[0052] Comparative Example 1. The difference from Example 3 is that no additives were added.

[0053] Comparative Example 2. The difference from Example 3 is that no pretreated kaolin is added in the preparation of the additive.

[0054] Comparative Example 3. Different from Example 3, no additive liquid was added during the additive preparation.

[0055] Comparative Example 4. The difference from Example 3 is that the first additive is not added to the additive liquid.

[0056] Comparative Example 5. The difference from Example 3 is that no second additive is added to the additive liquid.

[0057] Comparative Example 6. The difference from Example 3 is that no synergist was added.

[0058] The products of Examples 1-3 and Comparative Examples 1-6 were added to the existing base oil at a weight ratio of 1:10 and stirred evenly. The performance test was then conducted (300 ml of the sample was placed in a test tube, the test tube was placed in an oil bath at 95°C, and air was introduced at 10 ± 0.5 L / h. The test was conducted for 120 hours to measure the change in the acid value of the lubricating oil). The test results are as follows:

[0059] It can be concluded from Examples 1-3 and Comparative Examples 1-6 that the products of the present invention have antioxidant properties and significant thermal stability. When neither the additive nor the synergist is added to the product, the performance of the product deteriorates significantly. In addition, when no pretreated kaolin is added during the preparation of the additive, no additive liquid is added during the preparation of the additive, the first additive is not added to the additive liquid, and the second additive is not added to the additive liquid, the performance of the product tends to deteriorate. Only when the additive and synergist raw materials obtained by the method of the present invention are used, the performance of the product is most significant.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An antioxidant composition for low-altitude vehicle chain lubricant, characterized in that: The antioxidant composition comprises an antioxidant matrix, an additive and a synergist; the mass ratio of the antioxidant matrix, the additive and the synergist is (4-7): (3-5): 2; The antioxidant matrix is ​​composed of a hindered phenol antioxidant and a phosphite antioxidant in a weight ratio of 5:2; the hindered phenol antioxidant is antioxidant 1010 and the phosphite antioxidant is antioxidant 168.

2. The antioxidant composition for low-altitude vehicle chain lubricant according to claim 1, characterized in that: The preparation method of the additive is: S1: kaolin is first stirred in a sufficient amount of potassium permanganate solution, and then washed with water, filtered, and dried to obtain pretreated kaolin; S2: Preparation of additive liquid; S2a: 3-5 parts of calcium carbonate, 4-7 parts of calcium sulfate whiskers and 2-5 parts of yttrium oxide are uniformly mixed to obtain a first additive; S2b: Add 2-3 parts of β-cyclodextrin and 1-3 parts of silane coupling agent KH560 to 5-8 parts of 95% by mass ethanol solution, stir evenly, and obtain β-cyclodextrin solution; The halloysite tube and boron nitride are sintered in a weight ratio of 3:2 to obtain a second additive. S2c: The first additive, β-cyclodextrin solution and the second additive are mixed and ball-milled in a weight ratio of 3:5:2 to obtain an additive liquid. S3: ultrasonically treat the pretreated kaolin and the additive liquid in a weight ratio of 4:

9. After the ultrasonic treatment is completed, filter and dry to obtain the additive.

3. The antioxidant composition for low-altitude vehicle chain lubricating oil according to claim 2, characterized in that: The mass fraction of the potassium permanganate solution is 5-8%; the sintering temperature of the sintering treatment is 350-400° C., and the sintering time is 1 hour.

4. The antioxidant composition for low-altitude vehicle chain lubricant according to claim 2, characterized in that: The ball milling speed of the blending ball milling treatment is 1500-2000 r / min, and the ball milling is 2 hours; the ultrasonic power of the ultrasonic treatment is 350-400 W, and the ultrasonic treatment is 1 hour.

5. The antioxidant composition for low-altitude vehicle chain lubricant according to claim 1, characterized in that: The preparation method of the synergist is: S01: 3-5 parts of diatomaceous earth, 2-4 parts of phosphoric acid solution, 1-2 parts of titanium oxide, and 2-4 parts of lanthanum chloride solution are mixed evenly to obtain a synergistic solution; S02: preheating the mesoporous silica at 60-70° C. for 1 h, and ball-milling the preheated mesoporous silica with a synergistic liquid containing 15-18% of the total amount of the mesoporous silica. After the ball milling is completed, filtering and drying are performed to obtain a synergist.

6. The antioxidant composition for low-altitude vehicle chain lubricating oil according to claim 5, characterized in that: The mass fraction of the phosphoric acid solution is 5-8%; the mass fraction of the lanthanum chloride solution is 2-5%.

7. The antioxidant composition for low-altitude vehicle chain lubricant according to claim 5, characterized in that: The ball milling process is performed at a speed of 1000-1200 r / min for 2 hours.

8. The method for preparing an antioxidant composition for low-altitude vehicle chain lubricant according to any one of claims 1 to 7, characterized in that: The following steps are involved: The antioxidant composition of the present invention can be obtained by weighing raw materials according to parts by weight and stirring the raw materials.

9. The method for preparing an antioxidant composition for low-altitude vehicle chain lubricating oil according to claim 8, characterized in that: The stirring speed of the stirring treatment is 550-750 r / min, and the stirring is performed for 1 hour.

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