42 results about "Polyolester" patented technology

The invention relates to the technical field of refrigerating machine oil products, in particular to refrigerating machine oil and a working fluid composition containing the refrigerating machine oil. The refrigerating machine oil comprises base oil, wherein the base oil comprises first polyol ester and second polyol ester; the first polyol ester is a composite ester synthesized by pentaerythritol and a first carboxylic acid mixture through an esterification reaction, and the first carboxylic acid mixture comprises at least one acid selected from C8-C9 monobasic fatty acids, C5 monobasic fatty acids and C4-C9 binary acids; the second polyol ester is a mixed ester synthesized from dipentaerythritol and a second carboxylic acid mixture through an esterification reaction, and the second carboxylic acid mixture comprises at least one of C8-C9 monobasic fatty acids and C5 monobasic fatty acids. The refrigerating machine oil and an R32 refrigerant can still be completely dissolved in each other at a low temperature, high working viscosity can be maintained after dissolution, the lubricating property and the stability are good, and the refrigerating machine oil can be applied to harsh compressor working conditions or low-temperature refrigerating environments.

Provided is a compressor in which the sliding performance of a sliding part is improved. In order to solve this problem, a compressor (100) is provided with: a high-pressure chamber-type sealed container (1) in which refrigerant oil and a refrigerant containing 50 mass% or more of a hydrofluoroolefin refrigerant are sealed; and a compression mechanism part (8) which is housed in the sealed container (1) and has a sliding part (9) made of an iron-based material, the refrigerator oil comprising a polyvinyl ether and / or a polyol ester, and the kinematic viscosity of the refrigerator oil at 40 DEG C being from 10 mm2 / s to 40 mm2 / s (inclusive).

The invention discloses a preparation method of a long-acting corrosion-resistant extreme pressure cutting fluid, and relates to the technical field of metal working fluids. According to the method, mineral oil is used as base oil and matched with fatty acid, boric acid ester and sulfonate to form a synergistic extreme pressure system, an aluminum product corrosion inhibitor and a polyol ester antirust agent are combined to form a dual-corrosion-resistant system, and functional auxiliaries such as a biological stabilizer and an anti-foaming agent are used as auxiliary agents. The preparation method comprises the steps of pretreatment, extreme pressure component compounding, anti-corrosion system adding, functional additive blending, emulsifying and curing, post-treatment and other optimization processes. Through collaborative design of components and optimization of technological parameters, the defects that existing domestic cutting fluid is short in anti-corrosion aging, insufficient in extreme pressure lubrication, weak in hard water resistance and the like are overcome, the product can form long-acting protection on sensitive metal, is suitable for counter weight load processing, is high in hard water resistance, is biologically stable, is environment-friendly and safe, and has a wide application prospect. And the high-end machining requirements in the fields of military industry, aerospace and the like are met, and practical value and popularization significance are achieved.

The invention relates to a method for preparing electric vehicle cooling insulating oil, and belongs to the technical field of lubricating oils. The invention prepares an antioxidant first, and then uses the antioxidant to prepare an electric vehicle cooling insulating oil with good oxidation stability. The invention first mixes a natural ester, a polyol ester, and a pour point depressant to reduce the viscosity of the natural ester and improve the fluidity of the natural ester, and then sequentially adds a passivator and an antioxidant to the mixed oil, and ultrasonically disperses and mixes and modifies the mixed oil to prepare the electric vehicle cooling insulating oil. The preparation method of the invention is simple, and the proportion is controllable. The prepared electric vehicle cooling insulating oil retains the fire-fighting performance of the natural ester, has stable chemical properties, good oxidation resistance, can maintain good insulation performance for a long time, has strong fluidity, can achieve better heat dissipation effect, and can be widely used in the field of new energy vehicles.

The refrigerant hose has an innermost tube in which an inner cavity is defined, and the innermost tube is based on hydrogenated nitrile rubber (HNBR), a polymer blend containing HNBR, or one of its copolymers, which is cured with phenol-formaldehyde resin. The refrigerant hose may further include an optional permeation inhibition layer that surrounds the innermost tube when included, and when this layer is used, a reinforcing layer arranged outward from the innermost tube and the optional permeation inhibition layer, and a covering layer arranged outward from the reinforcing layer. When exposed to polyol ester oil or polyalkylene glycol oil for 168 hours at 125°C, the innermost tube has a volume expansion percentage of 10% or less. In addition, the innermost tube does not contain peroxides and may further contain no added elemental sulfur, sulfur donors, and / or additives containing sulfur in its molecular structure.

The invention relates to the technical field of lubricating oil, in particular to composite lubricating oil and a preparation method thereof. The composite lubricating oil provided by the invention comprises the following components in percentage by mass: 55%-65% of vegetable oil-based polyol ester, 5%-15% of modified inorganic nano ceramic powder, 0.5%-1.2% of an antioxidant, 0.01%-0.1% of a demulsifying agent, 1%-3% of a biological pour point depressant and the balance of synthetic base oil, wherein the modified inorganic nano ceramic powder is nano aluminum oxide and / or nano zirconium oxide modified by chitosan and oleic acid. The composite lubricating oil contains a high proportion of vegetable oil-based polyol ester, is more environment-friendly, is improved in high and low temperature resistance and lubricating performance at the same time, and has better wear resistance and longer service life.

A working fluid composition containing a refrigerating machine oil containing at least one base oil selected from the group consisting of polyvinyl ether, polyalkylene glycol, and polyol ester, and a refrigerant containing trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf).

USE OF ESTERS FOR IMPROVING THE CLEANLINESS OF MARINE ENGINES The present invention relates to the use of at least one polyol ester(s) having a viscosity at 100°C, measured according to ASTM D445, strictly less than 200 cSt, in a lubricant composition for a marine engine, to improve the cleanliness of said marine engine. Figure for the abstract: none

The application provides a refrigeration machine oil base oil, a refrigeration machine oil, a fluid composition and a refrigeration compressor. The refrigeration machine oil base oil comprises a first polyol ester, which is obtained by esterification reaction of adipic acid and iso-octanoic acid with pentaerythritol and then removal of acid by a neutralizing agent. The refrigeration machine oil base oil has excellent rheological properties, refrigerant compatibility and friction performance, has a low acid value, reduces corrosion of compressor pump body parts, and one of raw materials of the first polyol ester of the refrigeration machine oil base oil is adipic acid, so that a polymerized long-chain structure is generated, and the friction performance of the lubricating oil is improved.

A working fluid composition containing a refrigerating machine oil; and a refrigerant containing trans-1,2-difluoroethylene (HFO-1132 (E)) and 2,3,3,3-tetrafluoropropene (HFO-1234yf), wherein the working fluid composition has a refrigerant fraction at 80° C. and 2.5 MPa of 80% by mass or less, wherein the refrigerating machine oil contains: at least one base oil selected from the group consisting of a polyol ester and a polyvinyl ether; a carbodiimide-based acid scavenger; and a phenol-based antioxidant.

The invention relates to the technical field of lubricating oil, in particular to electric automobile axle gear oil and a production process thereof. The gear oil is prepared from the following raw materials in parts by weight: 90 to 110 parts of base oil, 0.5 to 1.2 parts of N, N-di-n-butylamino toluylene triazole, 9 to 12 parts of a viscosity modifier, 10 to 15 parts of polyol ester, 1 to 3 parts of a pour point depressant, 1 to 2 parts of a compound antioxidant, 1.5 to 2.5 parts of a demulsifying agent, 0.8 to 1.5 parts of an anti-rust agent, 3 to 6 parts of an anti-wear reagent at extreme pressure, 0.2 to 0.6 part of a de-foaming agent and 5 to 8 parts of a functional additive, the gear oil produced by the invention not only has excellent high-temperature resistance, wear resistance and antifriction performance, but also has good oxidation resistance, the wear degree of an axle gear is reduced to a certain extent, the service life of the gear oil is prolonged, the service life of the axle gear is also prolonged, and the service life of the axle gear is prolonged. And the grade and the quality of the gear oil are effectively ensured.

The invention provides a preparation method of a lubricating oil material. The preparation method comprises the following steps: (1) weighing raw materials; (2) mixing and stirring oleic acid, linoleic acid and castor oil in corresponding parts by weight to obtain an oily mixture, and keeping a stirring state; and (3) mixing and heating stearic acid, dihydroxy stearic acid, modified polyol ester and an auxiliary agent in corresponding parts by weight, heating to 63-68 DEG C, and gradually adding into the oil mixture to obtain the plant-based synthetic oil. (4) heating the obtained plant-based synthetic oil to 43-48 DEG C, and then adding the preservative, the crystalline flake graphite, the bactericide, the defoaming agent and the water in corresponding parts by weight; and (5) finally, adding the viscosity index improver in corresponding parts by weight, and stirring at the rotating speed of 40-50rps for 20-30 minutes, thereby obtaining the product. The lubricating oil disclosed by the invention is good in degradability and high in lubricity, and has a wide market prospect and application value.

The invention relates to the technical field of refrigerating machine oil products, in particular to refrigerating machine oil and a working fluid composition containing the refrigerating machine oil. The refrigerating machine oil comprises base oil, wherein the base oil comprises first polyol ester and second polyol ester; the first polyol ester is a composite ester synthesized by pentaerythritol and a first carboxylic acid mixture through an esterification reaction, and the first carboxylic acid mixture comprises at least one acid selected from C7-C8 monobasic fatty acids, C5 monobasic fatty acids and C4-C9 binary acids; the second polyol ester is a composite ester synthesized from dipentaerythritol and a mixture of dipentaerythritol and second carboxylic acid through an esterification reaction, and the second carboxylic acid mixture comprises C4-C9 binary acid and C5 monobasic fatty acid. The refrigerating machine oil provided by the invention has low solubility with an R290 refrigerant, has high working viscosity after being maintained to be dissolved, has good lubricity and stability, and improves the safety and reliability of an R290 refrigerating system.

Provided is a compressor including a high-pressure chamber type hermetic container in which refrigerant containing hydrofluoroolefin refrigerant of 50 mass % or more and refrigerator oil are sealed; and a compression mechanism housed in the hermetic container and having a sliding portion made of an iron-based material, in which the refrigerator oil includes at least one refrigerator oil of polyvinyl ether or polyol ester, and a kinematic viscosity of the refrigerator oil at 40° C. is 10 mm2 / s or more and 40 mm2 / s or less.

The present invention relates to the technical field of lubricating oils, and particularly to an axle gear oil for electric vehicles and its production process; the gear oil is composed of the following raw materials in parts by weight: 90-110 parts of base oil, 0.5-1.2 parts of N, N-dibutylaminotolyltriazole, 9-12 parts of viscosity modifier, 10-15 parts of polyol ester, 1-3 parts of pour point depressant, 1-2 parts of compound antioxidant, 1.5-2.5 parts of demulsifier, 0.8-1.5 parts of rust inhibitor, 3-6 parts of extreme pressure and anti-wear agent, 0.2-0.6 parts of defoamer and 5-8 parts of functional additive; the gear oil produced by the present invention not only has excellent high-temperature resistance and wear-resistant and friction-reducing properties, but also has good antioxidant properties, reduces the wear degree of axle gears to a certain extent, extends the service life of the gear oil and also extends the service life of axle gears, effectively ensuring the grade and quality of the gear oil.

The application belongs to the technical field of lubricating oil, and particularly relates to a low-carbon environment-friendly high-performance industrial gear oil as well as a preparation method and application thereof. The low-carbon environment-friendly high-performance industrial gear oil comprises the following components in parts by weight: base oil 70-120 parts, antioxidant 0.1-1 part, anti-wear agent 0.1-1 part, extreme pressure agent 0.2-1 part, metal deactivator 0.05-0.5 part, antirust agent 0.05-0.5 part, anti-emulsifier 0.005-0.1 part, and anti-foaming agent 0.01-0.5 part; the base oil comprises degradable polyol ester 10-30 parts and poly-alpha olefin 60-90 parts. The low-carbon environment-friendly high-performance industrial gear oil has excellent comprehensive performance, has a repairing function on aging and wear of mechanical equipment, can improve the antioxidation performance, has lubricating performance, biodegradability, corrosion and rust prevention, extreme pressure and anti-wear, anti-emulsification and other performances, and can solve the problem of excessive odor of traditional gear oil.

The invention discloses biodegradable quenching oil for metal heat treatment and a preparation process thereof, the quenching oil is composed of 85-92% of a base oil system and 8-15% of an additive system, the base oil system comprises neopentyl polyol ester, high oleic acid modified soybean oil and poly-alpha-olefin, and the additive system comprises 1-3% of an antioxidant, 1-3% of a lubricant and 1-3% of a lubricant. The additive system comprises environment-friendly components such as a cooling accelerant, an antioxidant, an anti-wear reagent at extreme pressure, an anti-rust agent and a biodegradation accelerant. The preparation process comprises the steps of base oil dehydration pretreatment, additive premixing, step-by-step compounding reaction, three-stage filtration and purification, stable aging and the like, so that the uniform and stable performance of the product is ensured. The quenching oil can be used as over-speed quenching oil, and can also be used as isothermal graded quenching oil with the temperature of about 80 DEG C / s, and the application range covers the performance requirements of the whole oily quenching oil. And the quenching oil cooling use of most products is met. The quenching oil can completely replace the quenching oil performance requirements of mineral base oil, reduces the risk of environmental pollution, meets the batch production requirements of the industries of precision machinery, automobile parts and the like, and has wide application prospects.

The invention relates to the technical field of compressor oil, in particular to compatible long-service-life low-loss food-grade screw air compressor oil and a preparation method thereof. Comprising the following raw material components in parts by weight: 7-21 parts of hydrocarbon polymeric fluid containing ester functional groups, 6-18 parts of aromatic ester base oil, 2-9 parts of modified polyol ester, 3-8 parts of cyclohexane dibasic acid ester, 2-5 parts of poly-alpha-olefin, 2-5 parts of shaddock peel essential oil, 1-3 parts of propyl gallate, 3-6 parts of an antioxidant, 0.5-3 parts of an anti-wear reagent at extreme pressure, 0.05-0.2 part of a corrosion inhibitor, 0.05-0.5 part of an anti-rust agent, 0.05-0.2 part of a demulsifier and 0.01-0.2 part of a defoaming agent. The modified polyol ester is prepared by adding diphenylamine, naphthylamine and phenolic ester into polyol ester, and the mass ratio of the polyol ester to the diphenylamine to the naphthylamine to the phenolic ester is (3-5): (1-2): (1-2): 1.

The application relates to the technical field of special lubricating materials, in particular to long-acting rolling bearing lubricating oil with oxidation resistance and low residue and a preparation method thereof; the long-acting rolling bearing lubricating oil comprises stain-free modified synthetic base oil, ash-free extreme pressure anti-wear agent, ash-free high-molecular dispersant, high-temperature oxidation-resistant agent, rust-proof corrosion inhibitor, sealing agent compatible agent and silicon-free defoaming agent; the core is that ultrasonic cavitation effect is used to promote the uniform dispersion of the polar group of polyol ester and the molecular chain of metallocene catalytic poly-alpha-olefin under the microscale and to strengthen the interface compatibility, the stain-free modified synthetic base oil is prepared, and the finished product is prepared by combining step-by-step temperature control blending and vacuum defoaming process; the application discards the physical blending mode of traditional extreme pressure agents and antioxidants containing metal ions, solves the problems of easy generation of oil stain spot residue and ash analysis under high-speed operation by using a full-ash-free system, effectively reduces the volatilization loss and splashing loss rate, and significantly improves the heavy-load extreme pressure anti-wear performance and long-acting cold and hot cycle stability.

The present invention addresses the problem of providing a compressor with improved sliding performance in a sliding part. To solve this problem, a compressor 100 comprises: a high-pressure chamber-type sealed vessel 1 in which are sealed a refrigerant containing 50 mass% or more of a hydrofluoroolefin refrigerant, and a refrigeration oil; and a compression mechanism part 8 which is housed in the sealed vessel 1 and which has a sliding part 9 formed from an iron-based material. The refrigeration oil contains at least one of a polyvinyl ether or a polyolester refrigeration oil, and the kinematic viscosity of the refrigeration oil at 40°C is between 10 mm2 / s and 40 mm2 / s inclusive.

Provided is a composition for a refrigeration machine capable of reducing a friction coefficient in friction between sliding members in a refrigeration machine, and a composition kit for a refrigeration machine for providing the composition for a refrigeration machine. A composition for a refrigeration machine of the present disclosure includes a refrigeration machine oil, nanodiamond particles dispersed in the refrigeration machine oil, and a dispersant. The refrigeration machine oil preferably contains a polyvinyl ether, a polyol ester, a polyalkylene glycol, an alkylbenzene, or a mineral oil. The composition kit for a refrigeration machine of the present disclosure includes a refrigeration machine oil (A) containing a base oil and nanodiamond particles dispersed in the base oil, and a refrigerant (B).

The present invention provides a lubricating oil composition having high solubility of molybdenum dithiocarbamate, excellent friction reduction, and excellent oxidation stability and low evaporation properties.　Provided is a lubricating oil composition containing a base oil (A), a polyol ester (B), and molybdenum dithiocarbamate (C), wherein: the base oil (A) is one or more selected from among group III base oils and group IV base oils in a base oil classification of the American Petroleum Institute; the polyol ester (B) contains an ester of a saturated fatty acid having 10 or more carbon atoms and neopentyl glycol; and the molybdenum atom content is 150-1800 mass ppm based on the total amount of the lubricating oil composition.

The application discloses a refrigerating machine oil composition, a preparation method and application thereof. The application adopts a combination of polyol ester base oil and polyalkoxy ether base oil, and by changing the ratio of the two base oils, the two-phase separation temperature of the refrigerating machine oil composition and R290 refrigerant can be regulated, so that the application requirement of significantly improving the compatibility with R290 refrigerant can be met, and the composition has good hydrolysis stability.

The invention relates to a preparation method of electric vehicle cooling insulating oil, and belongs to the technical field of lubricating oil. The antioxidant is prepared firstly, then the antioxidant is used for preparing the electric vehicle cooling insulating oil with good oxidation stability, the natural ester, the polyol ester and the pour point depressant are mixed firstly, the viscosity of the natural ester is reduced, and the fluidity of the natural ester is improved; and sequentially adding a passivator and an antioxidant into the mixed oil, and carrying out ultrasonic dispersion, mixing and modification to prepare the cooling insulating oil for the electric vehicle. The preparation method is simple, the proportion is controllable, and the prepared cooling insulating oil for the electric vehicle reserves the fire-fighting performance of natural ester, is stable in chemical property, good in oxidation resistance, capable of keeping good insulating performance for a long time, high in fluidity, capable of achieving a better heat dissipation effect and capable of being widely applied to the field of new energy automobiles.

The invention relates to the use of a lubricant composition for lubricating a gas engine, said lubricant composition comprising at least one mineral base oil and at least one ester selected from polyol esters.

Methods of direct cooling electrical componentry, wherein the electrical componentry are contacted with a heat transfer fluid comprising at least 50 wt%of a polyol ester (POE) oil. A vehicle having a thermal management system and, optionally, a vehicle climate control system, wherein the thermal management system and the optional vehicle climate control system are charged with a heat transfer fluid comprising at least 50 wt%of a polyol ester (POE) oil.

The invention provides an acid ester composite diesel oil anti-wear agent and a preparation method thereof, and belongs to the technical field of diesel oil additives, and the preparation method comprises the following steps: S1, preparing a silanized solid acid catalyst; s2, preparing C18 polyol ester; and S3, mixing the acid-type anti-wear component and C18 polyol ester, heating and stirring, adding the tetrahydropyrazole pyridine derivative and the diluent, continuously stirring, cooling and filtering to obtain the acid-ester composite diesel oil anti-wear agent. According to the invention, the lubricating property and wear resistance of the low-sulfur diesel oil can be improved under the condition of a relatively low additive amount, and the low-sulfur diesel oil has low corrosivity and good oxidation stability.

The invention relates to the technical field of lubricating oil, in particular to a wide-temperature-range motor train unit gearbox lubricating oil composition and application thereof. The lubricating oil composition is characterized by comprising synthetic base oil and an additive, the synthetic base oil comprises polyolefin synthetic oil and polyol ester synthetic oil; the additive comprises a viscosity index improver, and the viscosity index improver comprises polymethacrylate with the molecular weight of 20000 to 30000. By optimizing the components of the lubricating oil (especially the viscosity index improver), the lubricating performance, high and low temperature performance and other overall performance of the lubricating oil can be remarkably improved, the components are stable in source, the preparation method is simple, and the market prospect is wide.

The present application relates to the field of C10M169 / 00, in particular to a high lubrication type pre-coated oil for aluminum zip-top can stock and a preparation method thereof.The preparation raw materials of the high lubrication type pre-coated oil for aluminum zip-top can stock include, in terms of mass fraction, 80-90 parts of polyol ester base oil, 1-5 parts of emulsifier, 1-5 parts of penetrant, 0.1-1 part of lubricant, 1-5 parts of rust inhibitor and 1-5 parts of antioxidant.The pre-coated oil provided by the present application has a wide source of preparation raw materials and certain environmental protection performance;the preparation method is relatively simple, only needs to be mixed and dispersed according to a certain feeding order, and does not need complex and expensive instruments and equipment;the lubrication performance and adhesion performance of the product are excellent, and there is no residual oil after cleaning, and the product is especially suitable for use of aluminum zip-top cans.