Graphene water-based gear oil for rapier loom and preparation method thereof

Abstract

The application relates to the technical field of lubricating oil, and particularly discloses a graphene water-based gear oil for a rapier loom and a preparation method thereof. The graphene water-based gear oil for the rapier loom provided by the application comprises the following components in parts by weight: water-soluble polyether polyol 967-992 parts, silicon dioxide 10-15 parts, phosphorus-containing modified graphene oxide 5-8 parts, anti-wear agent 1-5 parts, anti-gumming agent 1-5 parts and rust inhibitor 1-3 parts; the water-soluble polyether polyol is selected from one or more of polyethylene glycol, polypropylene glycol, an ethylene oxide-propylene oxide copolymer and allyl alcohol polyoxyalkyl ether; further, the silicon dioxide is a mixture of 10-15 mu m silicon dioxide, 300-500 nm silicon dioxide and 50-100 nm silicon dioxide. The graphene water-based gear oil for the rapier loom provided by the application has good viscosity-temperature characteristics and extreme-pressure anti-wear properties, and can ensure the running stability of the rapier loom equipment under extreme-pressure conditions.

Description

Technical Field

[0001] The present application relates to the technical field of lubricating oils, and in particular to a graphene water-based rapier loom gear oil and a preparation method thereof. Background Art

[0002] Textile machinery, particularly rapier looms, is widely used in the production of various fabrics and plays a vital role in modern industrial production. Technological advances have significantly improved the efficiency and stability of rapier looms, significantly enhancing production efficiency and product quality. However, to ensure the long-term stable operation of these machines, the selection of lubricants is crucial.

[0003] Currently, the gear oils commonly used in rapier looms are primarily classified into two categories: mineral-based oils and synthetic-based oils. Mineral-based oils are widely used due to their low cost, but they perform poorly in high-temperature and high-humidity environments, easily degrading due to moisture absorption or high-temperature decomposition. This can lead to unstable equipment operation and increased maintenance costs. While synthetic-based oils offer improved heat resistance and oxidation resistance, they also have limitations, particularly in humid environments, where they are subject to moisture absorption and deterioration. Furthermore, both mineral-based and synthetic-based oils are difficult to remove, increasing the complexity and frequency of equipment maintenance.

[0004] Therefore, it is particularly important to develop a gear oil with good viscosity-temperature characteristics and stable and good anti-wear protection function under high temperature and high humidity environments. Summary of the Invention

[0005] In order to solve the problems of existing gear oils such as easy deterioration and difficulty in cleaning under high temperature and high humidity environments, the present application provides a graphene water-based rapier loom gear oil and a preparation method thereof.

[0006] In a first aspect, the present application provides a graphene water-based rapier loom gear oil, which adopts the following technical solution: a graphene water-based rapier loom gear oil, comprising the following components in parts by weight: 967-992 parts of a water-soluble polyether polyol, 10-15 parts of silicon dioxide, 5-8 parts of phosphorus-modified graphene oxide, 1-5 parts of an anti-wear agent, 1-5 parts of an antioxidant and anti-gelling agent, and 1-3 parts of a rust inhibitor;

[0007] The water-soluble polyether polyol is selected from one or more of polyethylene glycol, polypropylene glycol, ethylene oxide-propylene oxide copolymer and allyl alcohol polyoxyalkyl ether.

[0008] The application adopts water-soluble polyether polyol, silicon dioxide and phosphorus-containing modified graphene oxide to prepare a graphene water-based rapier loom gear oil. The graphene water-based rapier loom gear oil still has good use stability in a high-temperature and high-humidity environment, ensuring the running stability of the rapier loom equipment under extreme pressure conditions. Specifically, the water-soluble polyether polyol is used as a base oil. On the one hand, the smaller the viscosity change at high temperature, the better the viscosity-temperature characteristics and the better the high-temperature stability. On the other hand, it can also effectively absorb and remove water on the surface of the equipment to prevent rust from occurring. The addition of silicon dioxide can not only improve the rheological property and stability of the gear oil, but also improve the heat dissipation performance of the gear oil, prevent the gear oil from being oxidized due to high temperature, and thus improve the high-temperature load resistance of the gear oil. The phosphorus-containing modified graphene oxide is a core additive. Its unique structure enables it to quickly form a dense protective film on the metal surface, effectively preventing direct contact and wear between metals, thereby prolonging the service life of the equipment.

[0009] In some embodiments, the water-based polyether polyol can be a mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether, a mixture of polypropylene glycol and allyl alcohol polyoxyalkyl ether, or a polyethylene glycol and an ethylene oxide-propylene oxide copolymer.

[0010] In a specific embodiment, the water-based polyether polyol can also be polyethylene glycol, polypropylene glycol, an ethylene oxide-propylene oxide copolymer, or allyl alcohol polyoxyalkyl ether.

[0011] Alternatively, the water-based polyether polyol is a mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether.

[0012] Alternatively, the weight ratio of the polyethylene glycol and the allyl alcohol polyoxyalkyl ether can be 1:(0.15-0.45).

[0013] In some embodiments, the weight ratio of the polyethylene glycol and the allyl alcohol polyoxyalkyl ether can be 1:(0.1-0.15), 1:(0.1-0.3), 1:(0.1-0.45), 1:(0.1-0.6), 1:(0.15-0.3), 1:(0.15-0.45), 1:(0.15-0.6), 1:(0.3-0.45), 1:(0.3-0.6), or 1:(0.45-0.6).

[0014] In a specific embodiment, the weight ratio of the polyethylene glycol and the allyl alcohol polyoxyalkyl ether can also be 1:0.1, 1:0.15, 1:0.3, 1:0.45, or 1:0.6.

[0015] Alternatively, the silicon dioxide is a mixture of 10-15 μm silicon dioxide, 300-500 nm silicon dioxide, and 50-100 nm silicon dioxide.

[0016] Optionally, the weight ratio of the 10-15 pm silica, 300-500 nm silica and 50-100 nm silica is 1:(0.3-0.5):(1.2-1.6).

[0017] In the present application, the use of silica can improve the heat dissipation performance of the gear oil and improve the high temperature load resistance of the gear oil; it is found through experiments that the use of the above three particle sizes of silica in combination can obtain a graphene water-based rapier loom gear oil with better extreme pressure and wear resistance, and the sintering load PD value can reach 4300 N or more.

[0018] In some embodiments, the weight ratio of the 10-15 pm silica, 300-500 nm silica and 50-100 nm silica is 1:(0.3-0.4):1.4, 1:(0.4-0.5):1.4, 1:0.4:(1.2-1.4) or 1:0.4:(1.4-1.6).

[0019] In a specific embodiment, the weight ratio of the 10-15 pm silica, 300-500 nm silica and 50-100 nm silica is 1:0.3:1.4, 1:0.4:1.4, 1:0.5:1.4, 1:0.4:1.2 or 1:0.4:1.6.

[0020] Optionally, the anti-wear agent is Irgalube 349, the anti-gumming antioxidant is octyl butyl diphenylamine and / or a phenolic antioxidant; and the anti-rust agent is an imidazoline derivative.

[0021] In a second aspect, the present application provides a preparation method of a graphene water-based rapier loom gear oil.

[0022] A preparation method of a graphene water-based rapier loom gear oil, comprising the following steps: stirring and heating water-soluble polyether polyol to 50-60℃, then adding silica, anti-rust agent, anti-wear agent, anti-gumming antioxidant and phosphorus-containing modified graphene oxide into the water-soluble polyether polyol in sequence, continuing to stir at constant temperature for 30-40 min after all the additions are completed, and obtaining a graphene water-based rapier loom gear oil.

[0023] Optionally, the addition time interval of the silica, anti-rust agent, anti-wear agent, anti-gumming antioxidant and phosphorus-containing modified graphene oxide is at least 5 min; and the stirring speed in the above preparation method is 20-30 rpm.

[0024] In summary, the present application has the following beneficial effects:

[0025] 1.The graphene water-based rapier loom gear oil prepared by using water-soluble polyether polyol, silica and the like as raw materials has good viscosity-temperature characteristics and extreme pressure and wear resistance, the viscosity index VI is 179.6-227.9, the sintering load PD value is 3725-4833 N, and the use requirements of the rapier loom lubricating oil can be met.

[0026] 2.When the graphene water-based rapier loom gear oil is cleaned by using a water-based cleaning solution, the equipment oil stains can be easily removed, the daily maintenance process is simplified, and the equipment maintenance cycle is prolonged.

[0027] 3.The graphene water-based rapier loom gear oil prepared by further using a mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether as the water-soluble polyether polyol has better high-temperature use stability and better extreme pressure and wear resistance, the viscosity index VI is greater than or equal to 200, and the sintering load PD value is greater than or equal to 3900.

[0028] 4.The graphene water-based rapier loom gear oil prepared by further using a mixture of 10-15 μm silica, 300-500 nm silica and 50-100 nm silica has better extreme pressure and wear resistance, and the sintering load PD value is greater than or equal to 4300 N. DETAILED DESCRIPTION

[0029] The graphene water-based rapier loom gear oil provided by the application comprises the following components in parts by weight: water-soluble polyether polyol 967-992 parts, silica 10-15 parts, phosphorus-containing modified graphene oxide 5-8 parts, anti-wear agent 1-5 parts, anti-oxidation anti-gumming agent 1-5 parts and anti-rust agent 1-3 parts.

[0030] The water-soluble polyether polyol is selected from one or more of polyethylene glycol, polypropylene glycol, ethylene oxide-propylene oxide copolymer and allyl alcohol polyoxyalkyl ether; further, the water-soluble polyether polyol is a mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether; still further, the weight ratio of the polyethylene glycol and the allyl alcohol polyoxyalkyl ether is 1:(0.15-0.45); wherein the silica is a mixture of 10-15 μm silica, 300-500 nm silica and 50-100 nm silica; further, the weight ratio of the 10-15 μm silica, the 300-500 nm silica and the 50-100 nm silica is 1:(0.3-0.5):(1.2-1.6).

[0031] The preparation method of the graphene water-based rapier loom gear oil provided in the application comprises the following steps: stirring and heating water-soluble polyether polyol to 50-60 DEG C, then sequentially adding silica, rust inhibitor, anti-wear agent, anti-oxidation and anti-gumming agent and phosphorus-containing modified graphene oxide into the water-soluble polyether polyol, keeping the interval of the adding time at least 5 min, continuously stirring at constant temperature for 30-40 min after the complete addition, and the stirring speed is 20-30 rpm, thereby obtaining the graphene water-based rapier loom gear oil.

[0032] In the application, the polyethylene glycol is PEG600, the CAS number of which is 25322-68-3; the polypropylene glycol is PPG200, the CAS number of which is 25322-69-4; the ethylene oxide-propylene oxide copolymer is polyether L-45, which is purchased from Jining Tangyi Chemical Co., Ltd.; the allyl alcohol polyoxyalkyl ether is polyether F-6, which is purchased from Haian Petroleum Chemical Factory in Jiangsu Province; the anti-wear agent is Irgalube 349, which is purchased from BASF; the imidazoline derivative rust inhibitor is Amine O, which is purchased from BASF; the octyl butyl diphenylamine anti-oxidation and anti-gumming agent is L-57, which is purchased from Beijing Yili Nier Petroleum Chemical Co., Ltd.

[0033] The preparation method of the phosphorus-containing modified graphene oxide comprises the following steps:

[0034] (1) preparing a solution of 1 mg / mL of graphene oxide and water, and ultrasonically dispersing the solution for 10 min under a power of 20 kHz to obtain a graphene oxide solution;

[0035] (2) adding 80wt% phosphoric acid into the graphene oxide solution, and ultrasonically dispersing the mixture for 30 min under a power of 20 kHz to obtain a mixed solution; the volume ratio of the graphene oxide solution to the 80wt% phosphoric acid is 100:3;

[0036] (3) loading the mixed solution into a preheated autoclave, stirring and reacting the mixture at 200 DEG C for 10 h to obtain a phosphorus-containing graphene oxide gel;

[0037] (4) mixing 100 g of the phosphorus-containing graphene oxide gel with 1 g of a detergent, then mixing 100 g of the mixture with 100 g of water, and grinding, homogenizing and freeze-drying to obtain the phosphorus-containing modified graphene oxide;

[0038] The raw materials, reagents and solvents used in the application can be commercially available.

[0039] The application will be further described in detail in combination with the examples and performance detection tests.

[0040] Examples 1-11

[0041] Examples 1-11 respectively provide a graphene water-based rapier loom gear oil.

[0042] The difference between the above examples is the type and ratio of the aqueous polyether polyol, as shown in Table 1 below.

[0043] The preparation method of the graphene aqueous rapier gear oil provided in Examples 1-11 comprises the following steps: stirring and heating water-soluble polyether polyol 985 g to 50-60℃, then adding 300-500 nm silica 13 g, Amine O anti-rust agent 3 g, Irgalube 349 anti-wear agent 4 g, L-57 anti-oxygen anti-glue agent 4 g and phosphorus-containing modified graphene 7 g into the water-soluble polyether polyol in sequence, the addition time interval is at least 5 min, after all the addition is completed, continue to stir at constant temperature for 30 min, the stirring speed is 25 rpm, and the graphene aqueous rapier gear oil is obtained.

[0044] Table 1 Type and ratio of aqueous polyether polyol in Examples 1-11

[0045]

[0046] Examples 12-18

[0047] Examples 12-18 respectively provide a graphene aqueous rapier gear oil.

[0048] The difference between the above examples and Example 7 is the particle size and ratio of the silica, as shown in Table 2 below.

[0049] Table 2 Particle size and ratio of silica in Examples 12-18

[0050]

[0051]

[0052] Comparative Example 1

[0053] Comparative Example 1 provides a graphene aqueous rapier gear oil.

[0054] The difference between the above comparative example and Example 7 is that the addition amount of silica is 0.

[0055] Performance detection test

[0056] The viscosity index, extreme pressure and wear resistance and rust resistance of the graphene aqueous rapier gear oil provided in Examples 1-18 and Comparative Example 1 are detected, and the results are shown in Table 3 below.

[0057] (1) Viscosity index: detected according to ASTM D2270;

[0058] (2) Rust test: 24h rust test was carried out according to ASTM D665A;

[0059] (3) Extreme pressure and wear resistance: The sintering load PD value was obtained by detection according to GB / T 3142.

[0060] Table 3: Performance detection results of the graphene water-based rapier loom gear oil obtained from Examples 1-18 and Comparative Example 1

[0061]

[0062]

[0063] According to the detection results in Table 3, the viscosity index VI of the graphene water-based rapier loom gear oil prepared by using the water-soluble polyether polyol, silicon dioxide and the like in Examples 1-18 of the present application was 179.6-227.9, and the sintering load PD value was 3725-4833 N; while the viscosity index VI of the graphene water-based rapier loom gear oil prepared by not adding silicon dioxide in Comparative Example 1 was only 153.6, and the sintering load PD value was 3132 N. Therefore, it is illustrated that the graphene water-based rapier loom gear oil prepared by using the water-soluble polyether polyol, silicon dioxide and the like as raw materials in the present application has good viscosity-temperature characteristics and extreme pressure and wear resistance, and can meet the use requirements of the lubricating oil of the rapier loom.

[0064] According to the detection results in Examples 1-11, the viscosity index VI of the graphene water-based rapier loom gear oil prepared by using the polyethylene glycol, polypropylene glycol, ethylene oxide-propylene oxide copolymer or allyl alcohol polyoxyalkyl ether as the water-soluble polyether polyol in Examples 1-4 was 179.6-190.3, and the sintering load PD value was 3725-3896 N; the viscosity index VI of the graphene water-based rapier loom gear oil prepared by using the mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether as the water-soluble polyether polyol in Examples 5-9 was 216.9-227.7 (≥200), and the sintering load PD value was 3926-4135 N (≥3900 N); the viscosity index VI of the graphene water-based rapier loom gear oil prepared by using the polypropylene glycol and allyl alcohol polyoxyalkyl ether with a weight ratio of 1:0.3 or the polyethylene glycol and ethylene oxide-propylene oxide copolymer with a weight ratio of 1:0.3 as the water-soluble polyether polyol in Examples 10-11 was 197.3-204.5, and the sintering load PD value was 3899-3937 N. Therefore, it is illustrated that the graphene water-based rapier loom gear oil prepared by further using the mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether as the water-soluble polyether polyol in the present application has better high-temperature use stability and better extreme pressure and wear resistance.

[0065] The results of the detection of Example 7 and Examples 12-18 show that the sintering load PD values of the graphene water-based rapier loom gear oils prepared by using any one of 10-15 μm, 300-500 nm or 50-100 nm silica in Example 7 and Examples 12-13 are 4135-4166 N; and the sintering load PD values of the graphene water-based rapier loom gear oils prepared by using 10-15 μm, 300-500 nm and 50-100 nm silica in Examples 14-18 are as high as 4306-4833 N (≥ 4300 N). Therefore, it is illustrated that the extreme pressure and wear resistance of the graphene water-based rapier loom gear oil prepared by using the mixture of 10-15 μm silica, 300-500 nm silica and 50-100 nm silica is better.

[0066] Although the present application has been described in detail with general description and specific embodiments above, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application are within the scope of the present application claimed.

Claims

1. A graphene water-based rapier loom gear oil, characterized in that: The invention comprises the following components in parts by weight: 967-992 parts of water-soluble polyether polyol, 10-15 parts of silicon dioxide, 5-8 parts of phosphorus-modified graphene oxide, 1-5 parts of anti-wear agent, 1-5 parts of antioxidant and anti-gelling agent, and 1-3 parts of rust inhibitor; The water-soluble polyether polyol is a mixture of polyethylene glycol and allyl alcohol polyoxyalkyl ether; the weight ratio of the polyethylene glycol to the allyl alcohol polyoxyalkyl ether is 1:(0.15-0.45).

2. The graphene water-based rapier loom gear oil according to claim 1, characterized in that: The silicon dioxide is a mixture of 10-15 μm silicon dioxide, 300-500 nm silicon dioxide and 50-100 nm silicon dioxide.

3. The graphene water-based rapier loom gear oil according to claim 2, characterized in that: The weight ratio of the 10-15 μm silicon dioxide, the 300-500 nm silicon dioxide and the 50-100 nm silicon dioxide is 1: (0.3-0.5): (1.2-1.6).

4. The graphene water-based rapier loom gear oil according to claim 1, characterized in that: The anti-wear agent is Irgalube 349, the antioxidant and anti-glue agent is octylbutyl diphenylamine and / or a phenolic antioxidant; and the rust inhibitor is an imidazoline derivative.

5. The method for preparing the graphene water-based rapier loom gear oil according to any one of claims 1 to 4, wherein The following steps are involved: The water-soluble polyether polyol is stirred and heated to 50-60° C., and then silicon dioxide, a rust inhibitor, an anti-wear agent, an antioxidant and an anti-gelling agent, and phosphorus-modified graphene oxide are added to the water-soluble polyether polyol in sequence. After all the additions are completed, the mixture is stirred at a constant temperature for 30-40 minutes to obtain a graphene water-based rapier loom gear oil.

6. The method for preparing graphene water-based rapier loom gear oil according to claim 5, wherein: The time interval for adding the silicon dioxide, rust inhibitor, anti-wear agent, antioxidant and anti-gelling agent and phosphorus-modified graphene oxide is maintained at least 5 minutes; the stirring speed in the above preparation method is 20-30 rpm.

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