Organosilicone grease lubricant and preparation method thereof

Abstract

The invention discloses an organic silicone grease lubricant and a preparation method thereof, and relates to the technical field of lubricant preparation. The organic silicone grease lubricant comprises the following raw materials in parts by weight: 50-60 parts of silicone oil, 10-20 parts of white mineral oil, 10-20 parts of composite filler, 5-10 parts of polyethylene glycol, 10-20 parts of composite lipid, 5-10 parts of poly-alpha olefin, 3-5 parts of a thickening agent and 1-3 parts of an antioxidant. According to the organic silicone grease lubricant and the preparation method thereof, the esterification degree of the lubricant can be greatly improved by adding the composite filler and the composite ester, so that the whole lubricant can keep a lubricating effect after being used for a long time, and the purposes of improving the lubricating effect of the lubricant and prolonging the service life of the lubricant are well achieved; the situation that the lubricating effect is greatly reduced due to the fact that the organic silicone grease lubricant is prone to drying and hardening after long-term use is avoided, and therefore long-term use of the organic silicone grease lubricant is greatly facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of lubricant preparation, in particular to an organic silicone grease lubricant and a preparation method thereof. Background Art

[0002] Silicone grease is also known as lubricating grease, which is named because it mainly plays a lubricating role. Lubricating silicone grease is a product of a mixture of fillers (white carbon black) with excellent lubricating and insulating properties and silicone products. Silicone grease is odorless, non-toxic, has a high flash point, a low freezing point, and a low vapor pressure. It has high temperature resistance and a low viscosity-temperature coefficient, good mechanical stability and water resistance, excellent oxidation stability, lubricity and electrical insulation properties, lubricating sealing materials: such as lubricating and sealing between glass, metal, plastic, and various corrosive substances at high and low temperatures, insulating materials: such as electronic and electrical components, machinery and equipment, moisture-proof fillers: such as electrical cable connectors, rubber, synthetic resin foam material surfaces, damping materials: such as audio and video switches, defoamers and demolding agents: such as plastic processing, silicone grease is one of the most important secondary processed products of silicone oil. With the development of science and technology and the maturity of the market, the requirements for the performance of silicone grease are getting higher and higher, and the variety and performance of silicone grease depend on the formula of base oil, fillers and additives and the process conditions of preparation. The use of high-quality raw materials and appropriate processes can ensure that silicone grease achieves good results. This technology can be used to produce high, medium and low-end series of silicone grease products to respond to market changes in a timely manner. At the same time, new products can be continuously developed, and the development prospects are broad.

[0003] The current organic silicone grease lubricant is easy to dry out after being used for a long time, which greatly reduces the lubrication effect and shortens the service life of the lubricant. This problem brings great inconvenience to the long-term use of organic silicone grease lubricant. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an organic silicone grease lubricant and a preparation method, which greatly improves the esterification degree of the lubricant by adding composite fillers and composite esters, so that the entire lubricant is not easy to dry out during long-term use and maintains the lubricating effect for a long time, thereby achieving the purpose of both improving the lubricating effect of the lubricant and extending the service life of the lubricant.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical scheme: an organic silicone grease lubricant, whose raw materials include, by weight: 50-60 parts of silicone oil, 10-20 parts of white mineral oil, 10-20 parts of composite filler, 5-10 parts of polyethylene glycol, 10-20 parts of composite grease, 5-10 parts of polyalphaolefin, 3-5 parts of thickener and 1-3 parts of antioxidant.

[0008] Preferably, the raw materials include, by weight: 55 parts of silicone oil, 15 parts of white mineral oil, 15 parts of composite filler, 7 parts of polyethylene glycol, 15 parts of composite grease, 7 parts of polyalphaolefin, 4 parts of thickener and 2 parts of antioxidant.

[0009] Preferably, the raw materials include, by weight: 50 parts of silicone oil, 10 parts of white mineral oil, 10 parts of composite filler, 5 parts of polyethylene glycol, 10 parts of composite grease, 5 parts of polyalphaolefin, 3 parts of thickener and 1 part of antioxidant.

[0010] Preferably, the raw materials include, by weight: 60 parts of silicone oil, 20 parts of white mineral oil, 20 parts of composite filler, 10 parts of polyethylene glycol, 20 parts of composite grease, 10 parts of polyalphaolefin, 5 parts of thickener and 3 parts of antioxidant.

[0011] Preferably, the composite filler is a combination of two or more of fatty acid methyl ester, alkyl alcohol amide or castor oil triethanolamine.

[0012] Preferably, the composite grease is a combination of two or more of silicone wax, low-temperature paraffin or oil-soluble lanolin.

[0013] Preferably, the thickener is one of polyacrylamide or sodium stearate.

[0014] Preferably, the antioxidant is one of sodium nitrite, sodium thiosulfate or sodium sulfite.

[0015] The present invention also provides a method for preparing an organic silicone grease lubricant, which specifically comprises the following steps:

[0016] S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively;

[0017] S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 20-30 minutes at a speed of 300-400 r / min and a temperature of 35-40° C. to obtain a primary mixture;

[0018] S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 500-700 r / min and 40-45° C. for 30-40 min to obtain a mixed grease;

[0019] S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 80-90°C and mixed for 1-2 hours under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

[0020] (III) Beneficial effects

[0021] The present invention provides an organic silicone grease lubricant and a preparation method thereof. Compared with the prior art, the organic silicone grease lubricant and the preparation method thereof have the following beneficial effects: the raw materials of the organic silicone grease lubricant and the preparation method thereof include, by weight, 50-60 parts of silicone oil, 10-20 parts of white mineral oil, 10-20 parts of composite fillers, 5-10 parts of polyethylene glycol, 10-20 parts of composite greases, 5-10 parts of polyalphaolefins, 3-5 parts of thickeners and 1-3 parts of antioxidants, and the esterification degree of the lubricant can be greatly improved by adding composite fillers and composite esters, so that the entire lubricant can maintain the lubricating effect during long-term use, and the purpose of both improving the lubricating effect of the lubricant and extending the service life of the lubricant is well achieved, and the situation that the organic silicone grease lubricant is easy to dry out after long-term use, resulting in a greatly reduced lubricating effect, is avoided, and the long-term use of the organic silicone grease lubricant is greatly facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a flow chart of the preparation method. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 The present invention provides four technical solutions: an organic silicone lubricant and a preparation method thereof, specifically including the following embodiments:

[0025] Embodiment 1: A silicone grease lubricant and a preparation method thereof, wherein the raw materials include by weight: 55 parts of silicone oil, 15 parts of white mineral oil, 15 parts of composite filler, 7 parts of polyethylene glycol, 15 parts of composite grease, 7 parts of polyalphaolefin, 4 parts of thickener and 2 parts of antioxidant, the composite filler is a composition of fatty acid methyl ester, alkyl alcohol amide and castor oil triethanolamine, the composite grease is a composition of silicone wax, low-temperature paraffin and oil-soluble lanolin, the thickener is polyacrylamide, and the antioxidant is sodium nitrite.

[0026] The present invention also provides a method for preparing an organic silicone grease lubricant, which specifically comprises the following steps:

[0027] S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively;

[0028] S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 25 minutes at a speed of 350 r / min and a temperature of 37° C. to obtain a primary mixture;

[0029] S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 600 r / min and 43° C. for 35 minutes to obtain a mixed grease;

[0030] S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 85°C and mixed for 1.5 hours under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

[0031] Example 2: A silicone grease lubricant and a preparation method thereof, wherein the raw materials include by weight: 50 parts of silicone oil, 10 parts of white mineral oil, 10 parts of composite filler, 5 parts of polyethylene glycol, 10 parts of composite grease, 5 parts of polyalphaolefin, 3 parts of thickener and 1 part of antioxidant, the composite filler is a composition of fatty acid methyl ester and alkyl alcohol amide, the composite grease is a composition of silicone wax and low-temperature paraffin, the thickener is sodium stearate, and the antioxidant is sodium thiosulfate.

[0032] The present invention also provides a method for preparing an organic silicone grease lubricant, which specifically comprises the following steps:

[0033] S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively;

[0034] S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 20 minutes at a speed of 300 r / min and a temperature of 35° C. to obtain a primary mixture;

[0035] S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 500 r / min and 40° C. for 30 minutes to obtain a mixed grease;

[0036] S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 80°C and mixed for 1 hour under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

[0037] Example 3: An organic silicone grease lubricant and a preparation method thereof, wherein the raw materials include, by weight: 60 parts of silicone oil, 20 parts of white mineral oil, 20 parts of composite filler, 10 parts of polyethylene glycol, 20 parts of composite grease, 10 parts of polyalphaolefin, 5 parts of thickener and 3 parts of antioxidant, the composite filler is a composition of alkyl alcohol amide and castor oil triethanolamine, the composite grease is a composition of low-temperature paraffin and oil-soluble lanolin, the thickener is polyacrylamide, and the antioxidant is sodium sulfite.

[0038] The present invention also provides a method for preparing an organic silicone grease lubricant, which specifically comprises the following steps:

[0039] S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively;

[0040] S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 30 minutes at a speed of 400 r / min and a temperature of 40° C. to obtain a primary mixture;

[0041] S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 700 r / min and 45° C. for 40 minutes to obtain a mixed grease;

[0042] S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 90°C and mixed for 2 hours under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

[0043] Embodiment 4: A silicone grease lubricant, characterized in that its raw materials include, by weight, 53 parts of silicone oil, 13 parts of white mineral oil, 13 parts of composite filler, 6 parts of polyethylene glycol, 13 parts of composite grease, 6 parts of polyalphaolefin, 4 parts of thickener and 2 parts of antioxidant, the composite filler is a composition of fatty acid methyl ester and castor oil triethanolamine, the composite grease is a composition of silicone wax and oil-soluble lanolin, the thickener is sodium stearate, and the antioxidant is sodium nitrite.

[0044] The present invention also provides a method for preparing an organic silicone grease lubricant, which specifically comprises the following steps:

[0045] S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively;

[0046] S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 23 minutes at a speed of 325 r / min and a temperature of 36° C. to obtain a primary mixture;

[0047] S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 550 r / min and 42° C. for 33 min to obtain a mixed grease;

[0048] S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 83°C and mixed for 1.25 hours under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

[0049] In summary, the present invention can greatly improve the esterification degree of the lubricant by adding composite fillers and composite esters, so that the entire lubricant can maintain the lubricating effect during long-term use, and well achieves the purpose of both improving the lubricating effect of the lubricant and extending the service life of the lubricant, avoiding the situation where the silicone grease lubricant is easy to dry out after long-term use, resulting in a greatly reduced lubricating effect, thereby greatly facilitating the long-term use of the silicone grease lubricant.

[0050] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An organic silicone grease lubricant, characterized in that: The raw materials include, by weight: 50-60 parts of silicone oil, 10-20 parts of white mineral oil, 10-20 parts of composite filler, 5-10 parts of polyethylene glycol, 10-20 parts of composite grease, 5-10 parts of polyalphaolefin, 3-5 parts of thickener and 1-3 parts of antioxidant.

2. The organic silicone grease lubricant and the preparation method thereof according to claim 1, characterized in that: The raw materials include, by weight: 55 parts of silicone oil, 15 parts of white mineral oil, 15 parts of composite filler, 7 parts of polyethylene glycol, 15 parts of composite grease, 7 parts of polyalphaolefin, 4 parts of thickener and 2 parts of antioxidant.

3. The organic silicone grease lubricant and the preparation method thereof according to claim 1, characterized in that: The raw materials include, by weight: 50 parts of silicone oil, 10 parts of white mineral oil, 10 parts of composite filler, 5 parts of polyethylene glycol, 10 parts of composite grease, 5 parts of polyalphaolefin, 3 parts of thickener and 1 part of antioxidant.

4. The organic silicone grease lubricant and the preparation method thereof according to claim 1, characterized in that: The raw materials include, by weight: 60 parts of silicone oil, 20 parts of white mineral oil, 20 parts of composite filler, 10 parts of polyethylene glycol, 20 parts of composite grease, 10 parts of polyalphaolefin, 5 parts of thickener and 3 parts of antioxidant.

5. An organic silicone grease lubricant and a preparation method thereof according to any one of claims 1 to 4, characterized in that: The composite filler is a combination of two or more of fatty acid methyl ester, alkyl alcohol amide or castor oil triethanolamine.

6. An organic silicone grease lubricant and a preparation method thereof according to any one of claims 1 to 4, characterized in that: The composite grease is a combination of two or more of organic silicon wax, low-temperature paraffin or oil-soluble lanolin.

7. An organic silicone grease lubricant and a preparation method thereof according to any one of claims 1 to 4, characterized in that: The thickener is one of polyacrylamide or sodium stearate.

8. An organic silicone grease lubricant and a preparation method thereof according to any one of claims 1 to 4, characterized in that: The antioxidant is one of sodium nitrite, sodium thiosulfate or sodium sulfite.

9. A method for preparing the organic silicone grease lubricant according to any one of claims 1 to 4, characterized in that: The specific steps include: S1. Ingredient processing: using a weighing device to measure the required weight portions of silicone oil, white mineral oil, composite filler, polyethylene glycol, composite grease, polyalphaolefin, thickener and antioxidant respectively; S2, mixing of the primary mixture: pour the silicone oil, white mineral oil, composite filler and polyethylene glycol weighed in step S1 into a mixing device in sequence, and then gently stir for 20-30 minutes at a speed of 300-400 r / min and a temperature of 35-40° C. to obtain a primary mixture; S3, preparation of a mixed grease: pour the composite grease, polyalphaolefin, thickener and antioxidant weighed in step S1 into the mixing and stirring equipment in step S2 in sequence, and continue mixing and stirring at 500-700 r / min and 40-45° C. for 30-40 min to obtain a mixed grease; S4, kneading and grinding treatment: the mixed grease obtained in step S3 is transferred to a vacuum kneader, heated to 80-90°C and mixed for 1-2 hours under reduced pressure until the mixture is uniformly mixed, and then the mixed mixture is transferred to a three-roll mill for grinding treatment, and the organic silicone grease lubricant is obtained after degassing treatment.

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