CN107129856B - Freon-resistant lubricating grease composition and preparation method thereof - Google Patents
Freon-resistant lubricating grease composition and preparation method thereof Download PDFInfo
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- CN107129856B CN107129856B CN201710333759.5A CN201710333759A CN107129856B CN 107129856 B CN107129856 B CN 107129856B CN 201710333759 A CN201710333759 A CN 201710333759A CN 107129856 B CN107129856 B CN 107129856B
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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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/06—Mixtures of thickeners and additives
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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
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/008—Lubricant compositions compatible with refrigerants
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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
- C10M2201/0616—Carbides; Hydrides; Nitrides used as thickening agents
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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
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
- C10M2201/1036—Clays; Mica; Zeolites used as thickening agents
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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
- C10M2201/105—Silica
- C10M2201/1056—Silica used as thickening agents
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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
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
- C10M2209/1023—Polyesters used as base material
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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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 belongs to the field of petrochemical industry, and particularly relates to a freon-resistant lubricating grease composition and a preparation method thereof. The freon-resistant lubricating grease composition provided by the invention comprises the following components: 130-190 parts by weight of polyester base oil; 10-60 parts of a thickening agent; 1-10 parts by weight of an antioxidant; the thickening agent comprises one or more of bentonite, silica gel and boron nitride; the antioxidant comprises a phenolic antioxidant and/or an amine antioxidant. The lubricating grease composition with excellent compatibility with Freon is obtained by optimally proportioning the types and the use amounts of the base oil, the thickening agent and the additive. Experimental results show that the lubricating grease composition provided by the invention has good compatibility after being mixed with Freon, the lubricating grease composition is not dissolved by Freon, and the Freon is clear and transparent.
Description
Technical Field
The invention belongs to the field of petrochemical industry, and particularly relates to a freon-resistant lubricating grease composition and a preparation method thereof.
Background
The lubricating grease is one of lubricating materials, is used for a friction part of a machine and plays a role in lubrication and sealing; also used on metal surface to fill gap and prevent rust. The lubricating grease mainly comprises a thickening agent, base oil and an additive, and is in a semi-fluid to semi-solid state at normal temperature.
Freon is a generic term for halogenated compounds of saturated hydrocarbons (mainly methane, ethane and propane), and can be classified into CFC, HCFC, HFC, and the like. At present, Freon is widely used in the fields of household appliances, foamed plastics, daily chemicals, automobiles, fire-fighting equipment and the like as a refrigerant, a foaming agent and a cleaning agent.
The existing lubricating grease generally has the problem of poor compatibility with Freon, so that the sealing performance of equipment (such as a bearing, a stirring shaft and the like) in contact with Freon after being coated with lubricating grease is poor, and the risk of leakage of Freon exists after long-term use.
Disclosure of Invention
In view of the above, the present invention provides a freon-resistant grease composition and a preparation method thereof, wherein the grease composition provided by the present invention has excellent compatibility with freon, and can satisfy the lubrication and sealing of equipment contacting with freon medium.
The invention provides a freon-resistant lubricating grease composition which comprises the following components in parts by weight:
130-190 parts of polyester base oil;
10-60 parts of a thickening agent;
1-10 parts of an antioxidant;
the thickening agent comprises one or more of bentonite, silica gel and boron nitride;
the antioxidant comprises a phenolic antioxidant and/or an amine antioxidant.
Preferably, the polyester base oil comprises one or more of adipic acid-ethylene glycol polyester, adipic acid-propylene glycol polyester, sebacic acid-ethylene glycol polyester, sebacic acid-propylene glycol polyester, azelaic acid-ethylene glycol polyester, and azelaic acid-propylene glycol polyester.
Preferably, the kinematic viscosity of the polyester base oil at 100 ℃ is 200-800 mm2/s。
Preferably, the phenolic antioxidant is available under the brand name of one or more of IRGANOX L06, IRGANOX L101, IRGANOX L115 and IRGANOX L107.
Preferably, the amine antioxidant comprises diphenylamine and/or diisooctyldiphenylamine.
Preferably, the content of the polyester base oil in the composition is 160 to 180 parts by weight.
Preferably, the content of the thickening agent in the composition is 20-40 parts by weight.
Preferably, the content of the antioxidant in the composition is 1-3 parts by weight.
The invention provides a preparation method of the freon-resistant lubricating grease composition in the technical scheme, which comprises the following steps:
a) and mixing the polyester base oil, the thickening agent and the antioxidant to obtain the freon-resistant lubricating grease composition.
Preferably, the step a) specifically comprises:
a1) mixing polyester base oil and a thickening agent to obtain a mixture;
a2) and mixing the mixture with an antioxidant to obtain the freon-resistant grease composition.
Compared with the prior art, the invention provides a freon-resistant lubricating grease composition and a preparation method thereof. The freon-resistant lubricating grease composition provided by the invention comprises the following components: 130-190 parts by weight of polyester base oil; 10-60 parts of a thickening agent; 1-10 parts by weight of an antioxidant; the thickening agent comprises one or more of bentonite, silica gel and boron nitride; the antioxidant comprises a phenolic antioxidant and/or an amine antioxidant. The lubricating grease composition with excellent compatibility with Freon is obtained by optimally proportioning the types and the use amounts of the base oil, the thickening agent and the additive. Experimental results show that the lubricating grease composition provided by the invention has good compatibility after being mixed with Freon, the lubricating grease composition is not dissolved by Freon, and the Freon is clear and transparent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a freon-resistant lubricating grease composition which comprises the following components in parts by weight:
130-190 parts of polyester base oil;
10-60 parts of a thickening agent;
1-10 parts of an antioxidant;
the thickening agent comprises one or more of bentonite, silica gel and boron nitride;
the antioxidant comprises a phenolic antioxidant and/or an amine antioxidant.
The freon-resistant lubricating grease composition provided by the invention comprises polyester base oil, a thickening agent and an antioxidant. Wherein the polyester base oil preferably comprises one or more of adipic acid-ethylene glycol polyester, adipic acid-propylene glycol polyester, sebacic acid-ethylene glycol polyester, sebacic acid-propylene glycol polyester, azelaic acid-ethylene glycol polyester, and azelaic acid-propylene glycol polyester; the preferable kinematic viscosity of the polyester base oil at 100 ℃ is 200-800 mm2(ii) s, more preferably 300 to 600mm2A specific value of 200 mm/s2/s、300mm2/s、400mm2/s、500 mm2/s、600mm2Or 700mm2And s. In the present invention, the content of the polyester base oil in the composition is 130 to 190 parts by weight, preferably 160 to 180 parts by weight, and specifically 161 parts by weight, 162 parts by weight, 163 parts by weight, 164 parts by weight, 165 parts by weight, 166 parts by weight, 167 parts by weight, 168 parts by weight, 169 parts by weight, 170 parts by weight, 171 parts by weight, 172 parts by weight, 173 parts by weight, 174 parts by weight, 175 parts by weight, 176 parts by weight, 177 parts by weight, 178 parts by weight, 179 parts by weight, or 180 parts by weight. In one embodiment provided herein, the polyester base oil comprises an ethylene adipate polyester and a propylene sebacate polyester, wherein the ethylene adipate polyester preferably has a kinematic viscosity at 100 ℃ of 200mm2The content of the adipic acid ethylene glycol polyester in the composition is preferably 100 parts by weight, and the 100 ℃ kinematic viscosity of the sebacic acid propylene glycol polyester is preferably 400mm2The propylene glycol sebacate polyester is preferably present in the composition in an amount of 70 parts by weight. In another embodiment provided by the present invention, the polyester base oil comprises an ethylene sebacate polyester and an ethylene azelate polyester, wherein the ethylene sebacate polyester preferably has a kinematic viscosity at 100 ℃ of 600mm2The content of the sebacic acid glycol polyester in the composition is preferably 74 parts by weight, and the 100 ℃ kinematic viscosity of the azelaic acid glycol polyester is preferably 300mm2(s) the ethylene glycol azelate polyThe content of the ester in the composition is preferably 100 parts by weight. In other embodiments provided herein, the polyester base oil comprises a propylene glycol adipate polyester and a propylene glycol azelate polyester, wherein the propylene glycol adipate polyester preferably has a kinematic viscosity at 100 ℃ of 300mm2The propylene glycol adipate polyester preferably comprises 90 parts by weight of the composition, and the propylene glycol nonanoate polyester preferably has a kinematic viscosity at 100 ℃ of 800mm2The propylene glycol azelate polyester is preferably present in the composition in an amount of 80 parts by weight. In other embodiments provided herein, the polyester base oil comprises an ethylene sebacate polyester, a propylene adipate polyester, and a propylene azelate polyester, wherein the ethylene sebacate polyester preferably has a kinematic viscosity at 100 ℃ of 200mm2The content of the sebacic acid glycol polyester in the composition is preferably 50 parts by weight, and the 100 ℃ kinematic viscosity of the adipic acid propylene glycol polyester is preferably 500mm2The propylene glycol adipate polyester preferably comprises 50 parts by weight of the composition, and the propylene glycol nonanoate polyester preferably has a kinematic viscosity at 100 ℃ of 700mm2The content of the azelaic acid propylene glycol polyester in the composition is preferably 70 parts by weight. In other embodiments provided herein, the polyester base oil comprises a propylene glycol sebacate polyester, a propylene glycol adipate polyester, and an ethylene glycol azelate polyester, wherein the propylene glycol sebacate polyester preferably has a kinematic viscosity at 100 ℃ of 400mm2The content of the sebacic acid propylene glycol polyester in the composition is preferably 70 parts by weight, and the 100 ℃ kinematic viscosity of the adipic acid propylene glycol polyester is preferably 300mm2The propylene glycol adipate polyester preferably comprises 40 parts by weight of the composition, and the ethylene glycol azelate polyester preferably has a kinematic viscosity at 100 ℃ of 600mm2The amount of said ethylene glycol azelate polyester in the composition is preferably 60 parts by weight.
In the present invention, the thickener includes one or more of bentonite, silica gel, and boron nitride, and the silica gel is preferably No. 4 silica gel. In the present invention, the content of the thickener in the composition is 10 to 60 parts by weight, preferably 20 to 40 parts by weight, and specifically may be 20 parts by weight, 21 parts by weight, 22 parts by weight, 23 parts by weight, 24 parts by weight, 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight, 30 parts by weight, 31 parts by weight, 32 parts by weight, 33 parts by weight, 34 parts by weight, 35 parts by weight, 36 parts by weight, 37 parts by weight, 38 parts by weight, 39 parts by weight, or 40 parts by weight. In one embodiment provided by the invention, the thickening agent comprises bentonite and boron nitride, wherein the content of the bentonite in the composition is preferably 5-10 parts by weight, and the content of the boron nitride in the composition is preferably 20-30 parts by weight. In another embodiment provided by the present invention, the thickening agent comprises bentonite, silica gel and boron nitride, wherein the bentonite is preferably present in the composition in an amount of 5 parts by weight, the silica gel is preferably present in the composition in an amount of 5 parts by weight, and the boron nitride is preferably present in the composition in an amount of 20 parts by weight.
In the present invention, the antioxidant includes a phenolic antioxidant and/or an amine antioxidant. Wherein the grade of the phenolic antioxidant is preferably one or more of IRGANOX L06, IRGANOX L101, IRGANOX L115 and IRGANOX L107, and the grade of the phenolic antioxidant is provided by Ciba additive company; the amine antioxidant comprises diphenylamine and/or diisooctyl diphenylamine. In the present invention, the content of the antioxidant in the composition is 1 to 10 parts by weight, preferably 1 to 3 parts by weight, and specifically may be 1 part by weight, 1.5 parts by weight, 2 parts by weight, 2.5 parts by weight, or 3 parts by weight. In one embodiment provided herein, the antioxidants include IRGANOX L101 antioxidant and diphenylamine, wherein the IRGANOXL101 antioxidant is preferably present in the composition in an amount of 1 part by weight, and the diphenylamine is preferably present in the composition in an amount of 1 part by weight. In another embodiment provided by the present invention, the antioxidant comprises IRGANOX L115 antioxidant and diisooctyl diphenylamine, wherein the IRGANOX L115 antioxidant is preferably present in the composition in an amount of 1 part by weight, and the diisooctyl diphenylamine is preferably present in the composition in an amount of 1 part by weight. In other embodiments provided herein, the antioxidants include RGANOX L101 antioxidant and IRGANOX L1115 antioxidant, wherein the RGANOX L101 antioxidant is preferably present in the composition in an amount of 0.5 parts by weight, and the IRGANOX L1115 antioxidant is preferably present in the composition in an amount of 0.5 parts by weight. In other embodiments provided herein, the antioxidants include IRGANOX L101 antioxidant, IRGANOX L107 antioxidant, and diphenylamine, wherein the IRGANOX L101 antioxidant is preferably present in the composition in an amount of 1 part by weight, the IRGANOX L107 antioxidant is preferably present in the composition in an amount of 0.5 parts by weight, and the diphenylamine is preferably present in the composition in an amount of 0.5 parts by weight.
The invention provides a preparation method of the freon-resistant lubricating grease composition in the technical scheme, which comprises the following steps:
a) and mixing the polyester base oil, the thickening agent and the antioxidant to obtain the freon-resistant lubricating grease composition.
In the invention, the Freon-resistant lubricating grease composition can be obtained by directly and uniformly mixing the polyester base oil, the thickening agent and the antioxidant in proportion, wherein the mixing process specifically comprises the following steps:
a1) mixing polyester base oil and a thickening agent to obtain a mixture;
a2) and mixing the mixture with an antioxidant to obtain the freon-resistant grease composition.
In the mixing process provided by the invention, the mixing temperature of the polyester base oil and the thickening agent is preferably 150-180 ℃; after the polyester base oil, the thickening agent and the antioxidant are mixed, three-wheel grinding is preferably used, wherein the grinding frequency is preferably 2-5 times, and particularly can be 3 times.
The lubricating grease composition with excellent compatibility with Freon is obtained by optimally proportioning the types and the use amounts of the base oil, the thickening agent and the additive. The lubricating grease composition provided by the invention has good compatibility after being mixed with Freon, the lubricating grease composition is not dissolved by the Freon, and the Freon is clear and transparent.
For the sake of clarity, the following examples are given in detail.
Example 1
Setting kinematic viscosity at 100 ℃ to 200mm2100g of ethylene glycol adipate/s polyester and a kinematic viscosity at 100 ℃ of 400mm270 g/s propylene glycol sebacate polyester and 30g bentonite are added into a grease making kettle and stirred. Heating to 150 ℃, stopping heating, adding 1g of IRGANOX L06 antioxidant, stirring uniformly, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Example 2
The kinematic viscosity at 100 ℃ is 600mm274g of ethylene glycol sebacate polyester and 300mm of kinematic viscosity at 100 DEG C2100g of azelaic acid ethylene glycol polyester, 26g of No. 4 silica gel are added into a grease making kettle and stirred. Heating to 160 ℃, stopping heating, adding 1g of IRGANOX L101 antioxidant and 1g of diphenylamine, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Example 3
The kinematic viscosity at 100 ℃ is 300mm290g of propylene glycol adipate/s polyester and a kinematic viscosity at 100 ℃ of 800mm280g of propylene glycol azelaic acid polyester, 5g of bentonite and 30g of boron nitride are added into a grease making kettle and stirred. Heating to 170 ℃, stopping heating, adding 1g of IRGANOX L115 antioxidant and 1g of diisooctyl dianiline, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Example 4
Setting kinematic viscosity at 100 ℃ to 200mm250g of ethylene glycol sebacate polyester and a kinematic viscosity at 100 ℃ of 500mm250g of propylene glycol adipate/s polyester, with a kinematic viscosity at 100 ℃ of 700mm270g of propylene glycol azelaic acid polyester, 5g of bentonite, 5g of silica gel and 20g of boron nitride are added into a grease making kettle and stirred. Heating to 150 ℃, stopping heating, adding 0.5g of IRGANOX L101 antioxidant and 0.5g of IRGANOX L1115 antioxidant, stirring uniformly, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Example 5
The kinematic viscosity at 100 ℃ is 400mm270g of propylene glycol sebacate polyester and a kinematic viscosity at 100 ℃ of 300mm240g of propylene glycol adipate/s polyester, with a kinematic viscosity at 100 ℃ of 600mm260g of azelaic acid glycol polyester, 10g of bentonite and 20g of boron nitride are added into a grease making kettle and stirred. Heating to 180 ℃, stopping heating, adding 1g of IRGANOX L101 antioxidant, 0.5g of IRGANOX L107 antioxidant and 0.5g of diphenylamine, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Comparative example 1
The kinematic viscosity at 100 ℃ is 36mm280 g/s mineral oil, PB 2400100 g and 20g bentonite are added into a grease preparing kettle and stirred. Heating to 150 ℃, stopping heating, adding 1g of IRGANOX L101 antioxidant, 1g of IRGANOX L115 antioxidant and 0.5g of diisooctyl diphenylamine, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Comparative example 2
The kinematic viscosity at 100 ℃ is 600mm2And adding 180 g/s of silicone oil, 10g of bentonite and 10g of silica gel into the grease preparing kettle, and stirring. Heating to 160 ℃, stopping heating, adding 1g of IRGANOX L115 antioxidant and 1g of diphenylamine, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Comparative example 3
The kinematic viscosity at 100 ℃ is 800mm2170g of polyether, 10g of bentonite and 20g of boron nitride are added into a grease making kettle and stirred. Heating to 170 ℃, stopping heating, adding 1g of IRGANOX L101 antioxidant and 1g of IRGANOX L115 antioxidant, stirring uniformly, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Comparative example 4
The kinematic viscosity at 100 ℃ is 700mm2170g of/sPAO, 20g of boron nitride and 10g of silica gel are added into a grease preparing kettle and stirred. Heating to 180 ℃, stopping heating, adding 1g of IRGANOX L101 antioxidant and 1g of IRGANOX L107 antioxidant, uniformly stirring, cooling to room temperature, and grinding for three times (gap 4:2 threads) by a three-wheel mill to obtain the lubricating grease composition.
Example 6
The grease compositions prepared in examples 1 to 5 and ratios 1 to 4 were subjected to performance tests, and the test results are shown in Table 1. The compatibility test and result judgment of the lubricating grease and the Freon are carried out according to the following methods:
5g of grease was added to the bottom of a 100mL test tube, 50mL of Freon solvent (trade name: F113) was added, a rubber stopper was closed, the tube was shaken by hand for 30 seconds and then left to stand for 24 hours, and the state of dissolution of the grease in the Freon solvent in the test tube was observed.
If the lubricating grease in the test tube is not dissolved, the Freon is clear and transparent, which indicates that the lubricating grease has good compatibility with the Freon; if Freon has turbidity or lubricating grease is dissolved, the lubricating grease and Freon are not compatible well.
Table 1 shows properties of grease compositions prepared in examples of the present invention and comparative examples
As can be seen from the data in Table 1, the grease composition provided by the embodiment of the invention has good compatibility after being mixed with Freon, the grease composition is not dissolved in Freon, and the Freon is clear and transparent.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The freon-resistant lubricating grease composition comprises the following components in parts by weight:
130-190 parts of polyester base oil;
10-60 parts of a thickening agent;
1-10 parts of an antioxidant;
the polyester base oil comprises one or more of adipic acid-ethylene glycol polyester, adipic acid-propylene glycol polyester, sebacic acid-ethylene glycol polyester, sebacic acid-propylene glycol polyester, azelaic acid-ethylene glycol polyester and azelaic acid-propylene glycol polyester, and the polyester base oil has a temperature of 100 DEG CThe kinematic viscosity is 200-600 mm2/s；
The thickening agent comprises one or more of bentonite, silica gel and boron nitride;
the antioxidant comprises a phenolic antioxidant and/or an amine antioxidant;
the phenolic antioxidant is one or more of IRGANOX L06, IRGANOX L101, IRGANOX L115 and IRGANOX L107;
the amine antioxidant comprises diphenylamine and/or diisooctyl diphenylamine.
2. The composition of claim 1, wherein the polyester base oil is present in an amount of 160 to 180 parts by weight of the composition.
3. The composition as claimed in claim 1, wherein the thickener is contained in the composition in an amount of 20 to 40 parts by weight.
4. The composition of claim 1, wherein the antioxidant is present in the composition in an amount of 1 to 3 parts by weight.
5. A method of preparing the freon-resistant grease composition of claim 1 comprising the steps of:
a) and mixing the polyester base oil, the thickening agent and the antioxidant to obtain the freon-resistant lubricating grease composition.
6. The method according to claim 5, wherein the step a) comprises:
a1) mixing polyester base oil and a thickening agent to obtain a mixture;
a2) and mixing the mixture with an antioxidant to obtain the freon-resistant grease composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333759.5A CN107129856B (en) | 2017-05-12 | 2017-05-12 | Freon-resistant lubricating grease composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710333759.5A CN107129856B (en) | 2017-05-12 | 2017-05-12 | Freon-resistant lubricating grease composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107129856A CN107129856A (en) | 2017-09-05 |
| CN107129856B true CN107129856B (en) | 2020-06-05 |
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| CN201710333759.5A Active CN107129856B (en) | 2017-05-12 | 2017-05-12 | Freon-resistant lubricating grease composition and preparation method thereof |
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| CN108219903A (en) * | 2017-12-18 | 2018-06-29 | 上海摩克润滑油技术有限公司 | A kind of oil-resistant sealing grease and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886017A (en) * | 2010-07-06 | 2010-11-17 | 中国海洋石油总公司 | Bentonite grease |
| CN101921652A (en) * | 2010-08-18 | 2010-12-22 | 中国石油化工股份有限公司 | Oil-air lubricating grease and production method thereof |
| CN102102047A (en) * | 2009-12-18 | 2011-06-22 | 益田润石（北京）化工有限公司 | Preparation method of protective lubricating grease for high-temperature-resistant steel wire rope |
| CN102757844A (en) * | 2011-04-28 | 2012-10-31 | 中国石油化工股份有限公司 | Bentonite lubricating grease composite and preparation method thereof |
| CN103468353A (en) * | 2012-06-06 | 2013-12-25 | 东莞太平洋博高润滑油有限公司 | Bentonite grease composition and preparation method thereof |
| CN103525513A (en) * | 2013-10-23 | 2014-01-22 | 中国石油化工股份有限公司 | High-temperature lubricating grease composition and preparation method |
| CN104194875A (en) * | 2014-08-30 | 2014-12-10 | 广西大学 | Composition capable of degrading castor oil plant-based wide-temperature bearing grease |
| CN106497640A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of silicone oil type bentonite grease composition and preparation method |
-
2017
- 2017-05-12 CN CN201710333759.5A patent/CN107129856B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102047A (en) * | 2009-12-18 | 2011-06-22 | 益田润石（北京）化工有限公司 | Preparation method of protective lubricating grease for high-temperature-resistant steel wire rope |
| CN101886017A (en) * | 2010-07-06 | 2010-11-17 | 中国海洋石油总公司 | Bentonite grease |
| CN101921652A (en) * | 2010-08-18 | 2010-12-22 | 中国石油化工股份有限公司 | Oil-air lubricating grease and production method thereof |
| CN102757844A (en) * | 2011-04-28 | 2012-10-31 | 中国石油化工股份有限公司 | Bentonite lubricating grease composite and preparation method thereof |
| CN103468353A (en) * | 2012-06-06 | 2013-12-25 | 东莞太平洋博高润滑油有限公司 | Bentonite grease composition and preparation method thereof |
| CN103525513A (en) * | 2013-10-23 | 2014-01-22 | 中国石油化工股份有限公司 | High-temperature lubricating grease composition and preparation method |
| CN104194875A (en) * | 2014-08-30 | 2014-12-10 | 广西大学 | Composition capable of degrading castor oil plant-based wide-temperature bearing grease |
| CN106497640A (en) * | 2016-10-05 | 2017-03-15 | 中国石油化工股份有限公司 | A kind of silicone oil type bentonite grease composition and preparation method |
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