18 results about "Polyolester" patented technology

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 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 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.

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 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.

The invention relates to a carbon footprint quantified lubricating oil composition which comprises the following components in parts by weight: 60-75 parts of rerefined base oil, 8-15 parts of auxiliary base oil, 4-8 parts of alkyl naphthalene, 3-6 parts of a viscosity index improver and 0.12-0.30 part of a polymethacrylate pour point depressant, wherein the viscosity index improver is selected from polymethacrylate of which the glass transition temperature is not higher than 20 DEG C, and the auxiliary base oil is dibasic acid diester and / or polyol ester of which the carbon chain length is C8-C10. According to the scheme, the technical effects of low-temperature performance and low-carbon footprint are achieved, and the lubricating performance and the stability are both considered.

The invention provides insulating lubricating oil for an electric compressor of a new energy automobile and a preparation method thereof, and belongs to the technical field of special lubricating oil. The preparation method comprises the following steps: carrying out alkynylation pre-activation on a small amount of polyol ester (POE) base oil, and then covalently linking the activated POE and poly-alpha olefin (PAO) base oil by using a bifunctional crosslinking agent containing furan and maleimide groups by adopting a series distribution process of a copper-catalyzed azide-alkyne cycloaddition reaction (CuACC) and a photo-initiated enol-sulfur reaction. Finally, a dynamic network structure is formed through a reversible cycloaddition reaction between furan and a maleimide group, a functional additive is added, and the insulating lubricating oil capable of self-adjusting the state according to different working conditions of the compressor is obtained. The lubricating oil composition has excellent electrical insulating property, excellent working condition self-adaptive rheological property and high chemical stability and material compatibility, and meets the strict requirements of the new energy automobile electric compressor on lubrication and insulation.

The application discloses a refrigeration oil composition and a preparation method and application thereof. The refrigeration oil composition of the application adopts a polyol ester base oil of pentaerythritol and di-pentaerythritol and short-chain acid structures of normal butyric acid, 2-ethylhexanoic acid and aliphatic carboxylic acid with a carbon atom number of 5-7, and a base oil of two components of a polyalkoxy ether base oil. By changing the proportion (or polymerization degree) and ratio of the two components, the two-phase separation temperature of the refrigeration oil composition and R290 refrigerant can be controlled, so that the application requirement of significantly improving the compatibility with R290 refrigerant is achieved. Meanwhile, the composition has good hydrolysis stability.

The invention discloses a long-life hydraulic retarder oil composition which comprises the following components in percentage by weight: 6-8% of polyol ester; 11 to 12% of metallocene poly alpha olefin (mPAO); 13.2-17% of a composite additive; 0.6%-1.0% of an antioxidant; 0.8%-1.2% of a metal corrosion inhibitor; 0.2 to 0.4 percent of pour point depressant; and the balance of hydrogenated base oil. The high-viscosity mPAO is adopted to replace a traditional viscosity index improver, and is compounded with the metal corrosion inhibitor, so that the thermal oxidation stability of the oil product is improved, the catalytic aging process of the metal to the oil product is reduced, the generation of oil sludge and carbon deposition is reduced, and the corrosion of copper metal parts is effectively inhibited; and the corrosion performance of the oil product on metal parts of the hydraulic retarder is reduced under a high-temperature condition, so that the service life of the oil product is prolonged, and the oil change mileage can reach 300,000 kilometers.