CN111500350A - Automobile bearing lubricating grease and preparation method thereof - Google Patents
Automobile bearing lubricating grease and preparation method thereof Download PDFInfo
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- CN111500350A CN111500350A CN201910097472.6A CN201910097472A CN111500350A CN 111500350 A CN111500350 A CN 111500350A CN 201910097472 A CN201910097472 A CN 201910097472A CN 111500350 A CN111500350 A CN 111500350A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/05—Metals; Alloys
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/061—Carbides; Hydrides; Nitrides
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses automobile bearing grease, which comprises 100 parts by weight of cottonseed oil, 22-34 parts by weight of concentrated sulfuric acid, 31-52 parts by weight of dodecahydroxy stearic acid, 53-70 parts by weight of acetic acid, 135 parts by weight of calcium hydroxide 114-; the preparation method comprises the following steps: mixing 20-50 wt% of cottonseed oil, concentrated sulfuric acid, dodecahydroxy stearic acid and acetic acid, and heating and melting to obtain a mixture A; dissolving calcium hydroxide in water, saponifying at 100-120 deg.C for 1.5-2h, adding into mixture A, and maintaining at 100-110 deg.C for 1-2h to obtain mixture B; adding the rest components except the nano-filler into the mixture B, heating to 230 ℃ at 220 ℃, uniformly stirring, homogenizing at 140 ℃ at 20-25Mpa, then adding the nano-filler into the mixture at the temperature below 60 ℃, and uniformly stirring to obtain the lubricating grease with better abrasion resistance.
Description
Technical Field
The invention relates to the technical field of lubricating grease, and particularly relates to automobile bearing lubricating grease and a preparation method thereof.
Background
The lubricating grease is a thick grease-like semisolid, is used for a friction part of machinery such as an automobile bearing and the like to play a role in lubrication and sealing, is also used for a metal surface to play a role in filling gaps and preventing rust, and is an indispensable substance for ensuring smooth and stable running of the machinery such as the automobile bearing and the like.
The grease mainly comprises base oil and additives, and the common additives are: thickening agent, anti-wear agent, antioxidant, friction modifier, oiliness agent, metal passivator, antirust agent and the like. The existing Chinese patent application with the reference of the publication number of CN103666657B discloses heavy-load vehicle hub bearing lubricating grease, which adopts pentaerythritol ester as base oil and is matched with a plurality of composite additives, including a thickening agent, an anti-wear agent, an antioxidant, a friction modifier, an oiliness agent, a metal passivator and an antirust agent.
As a main component of grease, base oil determines basic properties of grease. However, the action of the additives is not of great variety and is also an important constituent of the grease. Suitable additives may make up for and improve deficiencies in the performance of the base oil, while at the same time possibly imparting new properties to the grease. The additive is the essence of the lubricating grease, and is properly and reasonably added, so that the physical and chemical properties of the lubricating grease can be improved, new special properties are endowed to the lubricating grease, or certain properties originally possessed by the lubricating grease are enhanced, and higher requirements are met. According to the quality and performance required by the lubricating grease, additives are carefully selected, carefully balanced and reasonably blended, which is the key for ensuring the quality of the lubricating grease.
The wear resistance of the grease is an important index for measuring the quality of the grease, and how to improve the wear resistance of the grease is still the key for improving the quality of the grease.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the following steps: provides the lubricating grease for the automobile bearing so as to achieve the effect of improving the abrasion resistance of the lubricating grease.
The first purpose of the invention is realized by the following technical scheme:
the automobile bearing lubricating grease comprises the following components in parts by weight: 100 parts of cottonseed oil, 22-34 parts of concentrated sulfuric acid, 31-52 parts of dodecahydroxy stearic acid, 53-70 parts of acetic acid, 135 parts of calcium hydroxide 114-.
By adopting the scheme, experiments prove that the lubricating grease for the automobile bearing, which is obtained by the invention, has excellent extreme pressure anti-wear performance, ensures that metal at a lubricating point is not abraded, transited and sintered under a heavy load state, is suitable for lubricating the automobile bearing, and is particularly suitable for lubricating the bearing with high temperature, high speed and high load for a long time.
The invention is further configured to: the paint comprises the following components in parts by weight: 100 parts of cottonseed oil, 25 parts of concentrated sulfuric acid, 40 parts of dodecahydroxy stearic acid, 60 parts of acetic acid, 125 parts of calcium hydroxide, 100 parts of water and 750 parts of sixteen-C base oil.
The invention is further configured to: 3.6 to 4.2 portions of methyl silicone oil, 2.6 to 3.4 portions of antioxidant and nano-filler, wherein the nano-filler comprises 0.36 to 0.42 portion of nano-silicon carbide, 0.21 to 0.26 portion of nano-titanium carbide, 0.05 to 0.12 portion of nano-cerium oxide and 0.15 to 0.32 portion of nano-copper powder.
By adopting the scheme, the four nano-fillers are added into the lubricating grease, and the weight parts of the four nano-fillers are limited. On one hand, four nano fillers with reasonable proportion can be matched with each other to synergistically improve the wear resistance of the lubricating grease; on the other hand, when the lubricating grease disclosed by the invention is used, high-temperature friction can be generated between the lubricating grease and a bearing, elements in four nano fillers of nano silicon carbide, nano titanium carbide, nano cerium oxide and nano copper powder can permeate into the surface of the bearing under the action of the high-temperature friction, so that the wear resistance of the surface of the bearing is effectively improved, the surface of the bearing shows excellent low friction coefficient and high wear resistance, and the nano particles deposited on the surface of the bearing can also fill micro pits on the surface of the bearing, so that the wear resistance of the surface of the bearing is further improved.
The invention is further configured to: the nano filler comprises 0.38 part of nano silicon carbide, 0.24 part of nano titanium carbide, 0.09 part of nano cerium oxide and 0.23 part of nano copper powder.
By adopting the scheme, the proportion of the four nano-fillers has great influence on the wear resistance of the lubricating grease, and when the four nano-fillers are in the proportion, a good synergistic effect can be achieved, so that the lubricating grease shows better wear resistance.
The invention is further configured to: the paint comprises the following components in parts by weight: 100 parts of cottonseed oil, 25 parts of concentrated sulfuric acid, 40 parts of dodecahydroxy stearic acid, 60 parts of acetic acid, 125 parts of calcium hydroxide, 100 parts of water, 750 parts of sixteen-C base oil, 3.9 parts of methyl silicone oil, 2.9 parts of antioxidant and nano-filler, wherein the nano-filler comprises 0.38 part of nano-silicon carbide, 0.24 part of nano-titanium carbide, 0.09 part of nano-cerium oxide and 0.23 part of nano-copper powder.
The invention is further configured to: the grain size of the nano silicon carbide is 300-500nm, the grain size of the nano titanium carbide is 40-100nm, the grain size of the nano cerium oxide is 20-30nm, and the grain size of the nano copper powder is 15-35 nm.
By adopting the above-mentioned scheme, the method can be used,
the invention is further configured to: the antioxidant is tea polyphenol.
The second purpose of the invention is that: the preparation method of the automobile bearing lubricating grease which does not contain the methyl silicone oil, the antioxidant and the nano filler comprises the following preparation steps:
s1, mixing 20-50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the determined weight part, saponifying at the temperature of 100-120 ℃ for 1.5-2h, adding into the mixture A, and keeping the temperature at the temperature of 100-110 ℃ for 1-2h to obtain a mixture B;
s3, adding the rest components into the mixture B, heating to 230 ℃ at 220 ℃, uniformly stirring, and homogenizing at 140 ℃ at 20-25Mpa to obtain the automobile bearing lubricating grease.
The third purpose of the invention is that: the preparation method of the automobile bearing lubricating grease containing the methyl silicone oil, the antioxidant and the nano filler comprises the following preparation steps:
s1, mixing 20-50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the determined weight part, saponifying at the temperature of 100-120 ℃ for 1.5-2h, adding into the mixture A, and keeping the temperature at the temperature of 100-110 ℃ for 1-2h to obtain a mixture B;
s3, adding the rest components except the nano-filler into the mixture B, heating to 230 ℃ at 220 ℃, uniformly stirring, homogenizing at 140 ℃ at 20-25Mpa at 120 ℃, and then adding the nano-filler into the mixture B and uniformly stirring at the temperature below 60 ℃.
By adopting the above-mentioned scheme, the method can be used,
in conclusion, the invention has the following beneficial effects:
1. the lubricating grease for the automobile bearing, which is obtained by the invention, has excellent extreme pressure anti-wear performance, ensures that a lubricating point is not sintered due to excessive wear of metal in a heavy load state, is suitable for lubricating the automobile bearing, and is particularly suitable for lubricating a bearing with high temperature, high speed and high load for a long time;
2. according to the invention, four nano-fillers of nano-silicon carbide, nano-titanium carbide, nano-cerium oxide and nano-copper powder are added into the lubricating grease, and the four nano-fillers with reasonable proportion can be matched with each other to synergistically improve the wear resistance of the lubricating grease;
3. when the lubricating grease disclosed by the invention is used, high-temperature friction can be generated between the lubricating grease and a bearing, elements in four nano fillers of nano silicon carbide, nano titanium carbide, nano cerium oxide and nano copper powder can permeate into the surface of the bearing under the action of the high-temperature friction, so that the wear resistance of the surface of the bearing is effectively improved, the surface of the bearing shows excellent low friction coefficient and high wear resistance, and the nano particles deposited on the surface of the bearing can also fill micro pits on the surface of the bearing, so that the wear resistance of the surface of the bearing is further improved;
4. tests prove that the lubricating grease disclosed by the invention also has the characteristic of high dropping point.
Detailed Description
The present invention will be described in further detail below.
Example 1
The automobile bearing lubricating grease comprises the following components in parts by weight: 100 parts of cottonseed oil, 22 parts of concentrated sulfuric acid, 31 parts of dodecahydroxy stearic acid, 53 parts of acetic acid, 114 parts of calcium hydroxide, 100 parts of water and 725 parts of sixteen-C base oil, wherein the preparation method comprises the following steps:
s1, mixing 20% by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying at 100 ℃ for 1.5h, adding into the mixture A, and keeping the temperature at 100 ℃ for 1h to obtain a mixture B;
and S3, adding the rest components into the mixture B, heating to 220 ℃, uniformly stirring, and homogenizing at 120 ℃ and 20Mpa to obtain the automobile bearing lubricating grease.
Example 2
The automobile bearing lubricating grease comprises the following components in parts by weight: 100 parts of cottonseed oil, 25 parts of concentrated sulfuric acid, 40 parts of dodecahydroxy stearic acid, 60 parts of acetic acid, 125 parts of calcium hydroxide, 100 parts of water and 750 parts of sixteen-C base oil, and the preparation method comprises the following steps:
s1, mixing 40% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying at 110 ℃ for 1.7h, adding into the mixture A, and keeping the temperature at 105 ℃ for 1.5h to obtain a mixture B;
and S3, adding the rest components into the mixture B, heating to 225 ℃, uniformly stirring, and homogenizing at 130 ℃ and 23Mpa to obtain the automobile bearing lubricating grease.
Example 3
The automobile bearing lubricating grease comprises the following components in parts by weight: 100 parts of cottonseed oil, 34 parts of concentrated sulfuric acid, 52 parts of dodecahydroxy stearic acid, 70 parts of acetic acid, 135 parts of calcium hydroxide, 100 parts of water and 762 parts of sixteen C base oil, and the preparation method comprises the following steps:
s1, mixing 50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying the calcium hydroxide for 2 hours at 120 ℃, adding the calcium hydroxide into the mixture A, and preserving heat for 2 hours at 110 ℃ to obtain a mixture B;
and S3, adding the rest components into the mixture B, heating to 230 ℃, uniformly stirring, and homogenizing at 140 ℃ and 25Mpa to obtain the automobile bearing lubricating grease.
Example 4
An automotive bearing grease differing from example 2 in that: the nano-silicon oil antioxidant also comprises 3.6 parts of methyl silicone oil, 2.6 parts of antioxidant and nano-filler, wherein the nano-filler comprises 0.36 part of nano-silicon carbide, 0.21 part of nano-titanium carbide, 0.05 part of nano-cerium oxide and 0.15 part of nano-copper powder, and the preparation method comprises the following steps:
s1, mixing 20% by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying at 100 ℃ for 1.5h, adding into the mixture A, and keeping the temperature at 100 ℃ for 1h to obtain a mixture B;
and S3, adding the rest components except the nano-filler into the mixture B, heating to 220 ℃, uniformly stirring, homogenizing at 120 ℃ and 20Mpa, and then adding the nano-filler into the mixture B and uniformly stirring to obtain the automobile bearing lubricating grease.
Example 5
An automotive bearing grease differing from example 2 in that: the nano-silicon carbide ceramic powder also comprises 3.9 parts of methyl silicone oil, 2.9 parts of antioxidant and nano-filler, wherein the nano-filler comprises 0.38 part of nano-silicon carbide, 0.24 part of nano-titanium carbide, 0.09 part of nano-cerium oxide and 0.23 part of nano-copper powder, and the preparation method comprises the following steps:
s1, mixing 40% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying at 110 ℃ for 1.7h, adding into the mixture A, and keeping the temperature at 105 ℃ for 1.5h to obtain a mixture B;
and S3, adding the rest components except the nano-filler into the mixture B, heating to 225 ℃, uniformly stirring, homogenizing at 130 ℃ and 23Mpa, and then adding the nano-filler into the mixture B and uniformly stirring to obtain the automobile bearing lubricating grease.
Example 6
An automotive bearing grease differing from example 2 in that: the nano-silicon carbide ceramic powder also comprises 4.2 parts of methyl silicone oil, 3.4 parts of antioxidant and nano-filler, wherein the nano-filler comprises 0.42 part of nano-silicon carbide, 0.26 part of nano-titanium carbide, 0.12 part of nano-cerium oxide and 0.32 part of nano-copper powder, and the preparation method comprises the following steps:
s1, mixing 50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the given weight part, saponifying the calcium hydroxide for 2 hours at 120 ℃, adding the calcium hydroxide into the mixture A, and preserving heat for 2 hours at 110 ℃ to obtain a mixture B;
and S3, adding the rest components except the nano-filler into the mixture B, heating to 230 ℃, uniformly stirring, homogenizing at 140 ℃ and under 25Mpa, and then adding the nano-filler into the mixture at the temperature below 60 ℃ and uniformly stirring to obtain the automobile bearing lubricating grease.
Performance testing the performance of the grease compositions for automotive bearings prepared in examples 1-6 were tested, the test methods and test results are shown in Table 1.
TABLE 1 results of Performance testing of automotive bearing greases
As can be seen from Table 1, the greases prepared in examples 1-3 had better extreme pressure antiwear properties and higher dropping points. In combination with comparative examples 4-5, it can be seen that the extreme pressure performance of the greases prepared in examples 4-5 is obviously better than that of examples 1-3, and the dropping points of the greases prepared in examples 4-5 are obviously higher than that of examples 1-3, which indicates that the addition of the four nano-fillers selected by the invention can simultaneously further improve the extreme pressure anti-wear property and the dropping point of the grease. Further, it can be seen from comparative examples 4 to 5 that the component ratios have a large influence on the extreme pressure anti-wear properties and dropping point of the grease, wherein the component ratio of example 5 is the best.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the embodiments without inventive contribution as required after reading this specification, but only fall within the scope of the claims of the present invention.
Claims (9)
1. An automobile bearing grease, which is characterized in that: the paint comprises the following components in parts by weight: 100 parts of cottonseed oil, 22-34 parts of concentrated sulfuric acid, 31-52 parts of dodecahydroxy stearic acid, 53-70 parts of acetic acid, 135 parts of calcium hydroxide 114-.
2. An automotive bearing grease according to claim 1, characterized in that: the paint comprises the following components in parts by weight: 100 parts of cottonseed oil, 25 parts of concentrated sulfuric acid, 40 parts of dodecahydroxy stearic acid, 60 parts of acetic acid, 125 parts of calcium hydroxide, 100 parts of water and 750 parts of sixteen-C base oil.
3. An automotive bearing grease according to claim 1, characterized in that: 3.6 to 4.2 portions of methyl silicone oil, 2.6 to 3.4 portions of antioxidant and nano-filler, wherein the nano-filler comprises 0.36 to 0.42 portion of nano-silicon carbide, 0.21 to 0.26 portion of nano-titanium carbide, 0.05 to 0.12 portion of nano-cerium oxide and 0.15 to 0.32 portion of nano-copper powder.
4. An automotive bearing grease according to claim 3 wherein: the nano filler comprises 0.38 part of nano silicon carbide, 0.24 part of nano titanium carbide, 0.09 part of nano cerium oxide and 0.23 part of nano copper powder.
5. The automobile bearing grease of claim 4, which comprises the following components in parts by weight: 100 parts of cottonseed oil, 25 parts of concentrated sulfuric acid, 40 parts of dodecahydroxy stearic acid, 60 parts of acetic acid, 125 parts of calcium hydroxide, 100 parts of water, 750 parts of sixteen-C base oil, 3.9 parts of methyl silicone oil, 2.9 parts of antioxidant and nano-filler, wherein the nano-filler comprises 0.38 part of nano-silicon carbide, 0.24 part of nano-titanium carbide, 0.09 part of nano-cerium oxide and 0.23 part of nano-copper powder.
6. An automotive bearing grease according to any one of claims 1 to 5, characterized in that: the grain size of the nano silicon carbide is 300-500nm, the grain size of the nano titanium carbide is 40-100nm, the grain size of the nano cerium oxide is 20-30nm, and the grain size of the nano copper powder is 15-35 nm.
7. An automotive bearing grease according to any one of claims 1 to 5, characterized in that: the antioxidant is tea polyphenol.
8. A method for preparing the automobile bearing grease of claim 1 or 2, which comprises the following preparation steps:
s1, mixing 20-50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the determined weight part, saponifying at the temperature of 100-120 ℃ for 1.5-2h, adding into the mixture A, and keeping the temperature at the temperature of 100-110 ℃ for 1-2h to obtain a mixture B;
s3, adding the rest components into the mixture B, heating to 230 ℃ at 220 ℃, uniformly stirring, and homogenizing at 140 ℃ at 20-25Mpa to obtain the automobile bearing lubricating grease.
9. A method for preparing the automobile bearing grease of any one of claims 3 to 7, which is characterized by comprising the following preparation steps:
s1, mixing 20-50% parts by weight of cottonseed oil, concentrated sulfuric acid, dodecahydroxystearic acid and acetic acid, and heating and melting to obtain a mixture A;
s2, dissolving calcium hydroxide in water according to the determined weight part, saponifying at the temperature of 100-120 ℃ for 1.5-2h, adding into the mixture A, and keeping the temperature at the temperature of 100-110 ℃ for 1-2h to obtain a mixture B;
s3, adding the rest components except the nano-filler into the mixture B, heating to 230 ℃ at 220 ℃, uniformly stirring, homogenizing at 140 ℃ at 20-25Mpa at 120 ℃, and then adding the nano-filler into the mixture B at the temperature below 60 ℃ and uniformly stirring to obtain the automobile bearing lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097472.6A CN111500350A (en) | 2019-01-31 | 2019-01-31 | Automobile bearing lubricating grease and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097472.6A CN111500350A (en) | 2019-01-31 | 2019-01-31 | Automobile bearing lubricating grease and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111500350A true CN111500350A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910097472.6A Pending CN111500350A (en) | 2019-01-31 | 2019-01-31 | Automobile bearing lubricating grease and preparation method thereof |
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| CN (1) | CN111500350A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876052A (en) * | 2021-01-15 | 2021-06-01 | 重庆鑫景特种玻璃有限公司 | Glass crystallization method, glass plate and isolation grease |
| CN113789211A (en) * | 2021-09-28 | 2021-12-14 | 中国石油化工股份有限公司 | Lubricating grease composition for hoisting machinery and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1058929A (en) * | 1951-03-22 | 1954-03-19 | Bataafsche Petroleum | Process for preparing a calcium soap grease |
| CN101200670A (en) * | 2006-12-12 | 2008-06-18 | 中国石油天然气集团公司 | Composite lithium-base grease and method for making same |
| CN103497813A (en) * | 2013-09-02 | 2014-01-08 | 安庆市中天石油化工有限公司 | Lubricating grease specially used in metallurgical industry continuous casting machine, and preparation method thereof |
| CN108865379A (en) * | 2018-08-14 | 2018-11-23 | 苏州功业肆点零智能科技有限公司 | A kind of preparation method of Hmp grease |
| CN109233959A (en) * | 2018-10-24 | 2019-01-18 | 辽宁海华科技股份有限公司 | A kind of automobile hub bearing lubricant composition and preparation method thereof |
-
2019
- 2019-01-31 CN CN201910097472.6A patent/CN111500350A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1058929A (en) * | 1951-03-22 | 1954-03-19 | Bataafsche Petroleum | Process for preparing a calcium soap grease |
| CN101200670A (en) * | 2006-12-12 | 2008-06-18 | 中国石油天然气集团公司 | Composite lithium-base grease and method for making same |
| CN103497813A (en) * | 2013-09-02 | 2014-01-08 | 安庆市中天石油化工有限公司 | Lubricating grease specially used in metallurgical industry continuous casting machine, and preparation method thereof |
| CN108865379A (en) * | 2018-08-14 | 2018-11-23 | 苏州功业肆点零智能科技有限公司 | A kind of preparation method of Hmp grease |
| CN109233959A (en) * | 2018-10-24 | 2019-01-18 | 辽宁海华科技股份有限公司 | A kind of automobile hub bearing lubricant composition and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 欧风: "《合理润滑技术手册》", 31 May 1993 * |
| 赵运才: "《现代机械磨损及其工程技术》", 30 April 2018 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876052A (en) * | 2021-01-15 | 2021-06-01 | 重庆鑫景特种玻璃有限公司 | Glass crystallization method, glass plate and isolation grease |
| CN113789211A (en) * | 2021-09-28 | 2021-12-14 | 中国石油化工股份有限公司 | Lubricating grease composition for hoisting machinery and preparation method thereof |
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Application publication date: 20200807 |