Polyalphaolefin (PAO) fluids are the most common major synthetic base oil used in industrial and automotive lubricants. Adobe PDF Library 10.0.1 Galvanized steel is susceptible to attack by some chemicals which may cause . These requirements or specifications will generally identify or recommend a product type (mineral oils, synthetic fluids, or bio-based fluids) and the proper performance requirements (developed into the lubricant by the component chemistry) to allow the machinery to run at an optimum level. Polyalphaolefin is by far the most common major synthetic base oil used in industrial and automotive lubricants. polyalphaolefin-based lubricants. 176 0 obj Ethylene is produced by cracking either crude oil or natural gas. The rotary bomb bench test is a strong predictor of how base oils will perform in many automotive and industrial applications. The lower volatility of Synfluid PAOs 5, 7 and 9 enhances the benefits for the highest quality lubricant. They are also employed as base fluids in some wide temperature range greases. 0000002995 00000 n When you compound this with difficult operating conditions, such as extreme temperatures, high loads or extended operations, a high-quality base oil may be necessary. 0000016208 00000 n PAG-based lubricants have excellent viscosity indices significantly better than PAO-based lubricants of the same viscosity grade. Process Chemical Compatibility Guide PAO basestocks were developed in the 1930s and used commercially as a base for engine oils starting in the 1970s. Polyalphaolefin (PAO) fluids are the most common major synthetic base oil used in industrial and automotive lubricants. Nine standard circulating fluids including d-Limonene, FC77 Flourinert, Galden, Lexol 408, Paratherm CR, Coolanol and PAO. Tiny bubbles these can cause major issues, such as shorter lubricant life, increased fluid compressibility, lower fluid viscosity and cavitation. PAO-based rotary screw compressor oil offers better performance in the compressor. what chemicals to use One example is the advantage PAO has over mineral oil in the area of high-temperature stability. 0000080859 00000 n PAO SYNTHETIC MATERIAL COMPATIBILITY CHART This table is aids in the selection of elastomers, plastics and paints for use in conjunction with PAO synthetic fluids. A polyolefin is a type of polymer with the general formula (CH 2 CHR) n where R is an alkyl group. These advantages are achieved without the need for VI improvers or other additives, which may promote other deleterious effects as they degrade. 0000022832 00000 n In drivetrain lubricants, reducing the traction coefficient and lowering viscosity are key ways to increase fuel economy, but lower viscosity must be balanced to provide adequate wear resistance. A Group III mineral oil with a 0.1 percent PPD achieves an improved pour point, but to the detriment of the low-temperature viscometrics. One way to achieve a higher VI base fluid is to shift from a decene-based PAO to a dodecene-based PAO. Therefore, reducing the temperature is generally beneficial in extending the life of a lubricant. Low-temperature fluidity and high-temperature thermal and oxidative stability are key factors for choosing a PAO. The magnitude of these benefits will depend on the particular formulation. 0000139641 00000 n These 1-dodecene-based products (Synfluid 2.5, 5, 7 and 9cSt PAOs) are now recognized to have superior performance in their own applications. Our Synfluid mPAO is based on a single monomer, AlphaPlus 1-Octene. Both the foam tendency (the initial amount of foam generated in this test) and the time required for the foam to collapse are remarkably better for Synfluid mPAO. Defense Daily subscriber and registered users, please log in here to access the content. Sustained operations at elevated temperatures increase the rate of oxidation and other degradation reactions. Polyalphaolefin (PAO) is manufactured through a synthetic chemical process that originates from ethylene. Polyalphaolefin (PAO) Prices, Price, Pricing, News, Monitor - ChemAnalyst endstream endobj 5 0 obj <>>> endobj 6 0 obj <>>>/Rotate 0/Type/Page>> endobj 7 0 obj <>stream Although VI is an important indicator, when used alone, VI is misleading. <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Thumb 159 0 R/TrimBox[0.0 0.0 792.0 612.0]/Type/Page>> When possible, testing compatibility between the specific PAG lubricant to be used and the specific seal types or paints to be used is recommended. from application/x-indesign to application/pdf Not a subscriber or a registered user yet? Furthermore, the arbitrary distinction of 120 VI between Group II and III oils makes the quality requirements even more confusing. To improve seal compatibility of PAO-based lubricants, an ester is added to . 0000018828 00000 n The ability of a lubricant to reach critical metal-to-metal interfaces in a gear system can be the difference between operation or shutdown. There are distinct advantages in volatility and low-temperature viscosity. General properties of low- and high-viscosity conventional PAO, and metallocene-catalyzed mPAO basestocks, are shown in Table 4. When PAO 5 and PAO 7 are compared to equiviscous blends of other PAOs, the volatility advantage can be seen more clearly. Grease is a solid to semi-fluid lubricant, typically used for difficult to service equipment, such as bearings or suspension systems. The reason a PAO is selected as a lubricant basestock is its ability to improve performance and solve problems. A product developed by Renewable Lubricants Inc. (RLI), with assistance from Chevron Phillips Chemical, uses Synfluid PAOs combined with biobased oils and specially designed additives. Understanding PAG- and PAO-Based Lubricants - POWER Magazine Satisfactory to 72 F. 3. With many new base oils being introduced to the market, lubricant consistency can really be a challenge. For instance, excellent water separation improves compressor operability by reducing the chance of emulsion formation. PAG-based lubricants provide many property and performance advantages over mineral oil-based and other synthetic lubricants, as outlined in Table 2. Lack of mineral oil solubility is a barrier to expanded use of PAG-based lubricants. Oils made with PAOs demonstrate an inherently high viscosity index and maintain excellent low-temperature performance, compared with mineral oils. So, whether used for gear or engine oils, PAOs provide more consistent properties and a level of purity not available from other base oil groups. 0000010623 00000 n LDPE Chemical Compatibility Chart: Check the chemical compatibility of LDPE (low density polyethylene) with various chemicals, solvents, alcohols and other products. Synfluid PAOs have very narrow molecular weight ranges, which are attributed to our high-purity feedstocks. 0000161878 00000 n Polypropylene Satisfactory to 72 F. C Moderate effectFair D Severe effectNot recommended FOOTNOTES 1. Give us a call, and well be happy to discuss our high-quality Synfluid PAOs with you. Two major types of synthetic basestockspolyalkylene glycols (PAG) and polyalphaolefin (PAO)and the lubricants formulated from them, will be compared. 102 0 obj Refined mineral oils often contain sulfurs, aromatics and other compounds that can erode the quality and consistency of a mineral oil. Weve got you covered! Since PAO fluids are synthetic hydrocarbons, they are compatible with and often combined with mineral-based oils. <]/Prev 170099>> Due to constraints with the supply of 1-decene, the traditional feedstock for PAOs, producers have experimented with alternative feedstocks to meet demand. The mineral oil has both lighter and heavier molecular weight materials. We agree, deciphering the requirements that allow you to identify your products as eco-friendly such as the upcoming BioPreferred label can be mind-boggling! The lower volatility decreases oil replacement costs by reducing oil consumption. PAO-based greases are typically used at temperatures over 100C because of thermal and oxidative concerns. PAG-based lubricants are commonly used in compressors, gearboxes, air conditioning systems, metalworking, quenching, and hydraulic systems where fire-resistance or environmental acceptability are required. 0000162572 00000 n 2014-03-26T09:16:41-05:00 The chart below shows the Noack volatility for both 1-decene and 1-dodecene based PAOs of varying viscosities. Specific heat is the amount of heat per unit mass required to raise the temperature one degree Celsius. It is true there are many high-quality base oils around, but the highest quality is still achieved when Synfluid PAOs are chosen. 0000036915 00000 n PAG basestocks are synthetic polymers manufactured using a polymerization process that combines monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO) singly as homopolymers or in combinations to form a growing chain from a nucleophilic starter molecule, commonly an alcohol. 0000139372 00000 n Oxidative and other lubricant degradation mechanisms would follow the same trend. Polyolefin. 0000013783 00000 n ]-]jW|^X^=E^7J3kgI%_9+v}Fwq{r9 *d(C>~z|7X#o!9lwu{^1se9),7v)mE,wa?t3 a$X{wzVAw}E^:5--_OXY+. 9 0 obj <>stream Since there are no other discernable compounds, Synfluid PAOs are more readily biodegradable and can be used for some food applications. 0000000016 00000 n 2013-07-10T14:05:23-05:00 Of course, and your options are growing! This is especially true when you consider the entire operating temperature range including startup. The chart compares two different formulations, one with PAO and another with Group III mineral oils The End of Test viscosity increase left very little room for error in the Group III formulation. As an example of the improved low-temperature torque properties of the PAO-based grease, the chart below shows torque values for Chemtools CSC 980 grease under ASTM D 4693 test conditions for rotation of a wheel-bearing assembly at -40C. Our safety, technical and regulatory product information, as well as company and industry resources. To mitigate this effect, We recommend taking a look at Synfluid PAO 5 and PAO 7, due to their excellent Noack volatilities of 5.5% and 2.3%, respectively. PAO- and PAG-based lubricants are both hydrolytically stable and have low pour points.