The differences in flash, fire, volatility and viscosity highlight the flexibility benefits of using a Synfluid PAO. 142 0 obj <>stream Not a subscriber or a registered user yet? Ethylene is produced by cracking either crude oil or natural gas. Volatility is a concern for many applications, especially where higher operating temperatures occur or longer service life is desired. Synfluid mPAOs exhibit faster air release times, particularly when comparing the 100 cSt blends. Polyalphaolefin does not contain ring structures, double bonds, sulphur, nitrogen components or waxy hydrocarbons. Synfluid PAOs have very narrow molecular weight ranges, which are attributed to our high-purity feedstocks. xmp.id:B2FC01B10F2068118083E936383AAE83 Using the same PAO, we achieved 15 percent higher oxidative stability by increasing the A.O. PAOs are Newtonian fluids; in other words, their viscosities are fairly independent of shear rate. They are also employed as base fluids in some wide temperature range greases. Polyalkylene glycol (PAG) and polyalphaolefin (PAO) are two synthetic lubricant options for industrial applications. But what happens below 40C? 0000033764 00000 n Some claim the Viscosity Index (VI) is the overriding parameter used when choosing a base oil. The remaining synthetic lubricants are produced from other basestocks, including phosphate esters, polybutenes, silicones, perfluoroalkyl, and polyphenyl ethers. PAO-based rotary screw compressor oil offers better performance in the compressor. Its great to have the opportunity to talk about both. As oil volatilizes, the viscosity increase will result in poorer overall performance. PAO basestocks were developed in the 1930s and used commercially as a base for engine oils starting in the 1970s. You see, PAOs are carefully designed, not refined. These products are acceptable for use as a lubricant (H1) or as a lubricant component (HX-1), with incidental food contact in and around food processing areas. Temp. 0000027693 00000 n Polyalphaolefins (PAO)-60 to 125 C Stable, lubricious fluids compatible with most plastics and elastomers. 0000034812 00000 n PAG lubricant basestocks can be designed to be water-soluble, water-insoluble (partial mineral oil compatibility), or oil-soluble, depending on the selection of starter molecules and monomers to be used in producing the polymer. According to the U.S. government, biobased is defined as at least 44% biobased carbon content for hydraulic fluids. The first step is the synthesis of oligomers (polymers with few repeating monomer units) from the linear alpha-olefin. 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. These advantages show that PAOs address problems other fluids cannot. Oxidative and other lubricant degradation mechanisms would follow the same trend. 2014-03-26T09:12:57.905-05:00 endobj In contrast, a mineral oil will require various antioxidants depending upon the structural makeup. The lower volatility of Synfluid PAOs 5, 7 and 9 enhances the benefits for the highest quality lubricant. endobj Our Synfluid mPAO is based on a single monomer, AlphaPlus 1-Octene. Our customers quickly realized the advantages in volatility, low-temperature viscometrics, VI and flash and fire points in equiviscous blends compared to 1-decene-based materials. Group V oils also include esters and naphthenic oils. Low-viscosity Synfluid PAOs are both NSF H1 and HX-1 registered. endobj endobj Group III mineral oils and Group IV PAOs are not of the same quality. This same technology can also be beneficial for biobased gear lubricants, chain and cable lubricants/greases, and other applications for equipment used in sensitive environmental areas. REFERENCEPAGES 1-800-833-7958 www.geotechenv.com fax303-322-7242 sales@geotechenv.com ChemicalCompatibilityTable For All Non-Metals For Metals R=Resistant E<2milsPenetration/Year Furthermore, thermal conductivity at 300F for PAO 6 is 0.085 compared to 0.071 Btuft/(hft2F) for an equiviscous mineral oil, which means that the PAO can conduct 20percent more heat than the mineral oil for better heat dissipation. PAOs offer exceptionally low volatility due to their controlled formation, which yields carefully designed molecular weights. 0000033361 00000 n We look forward to helping you consolidate your grease cabinet! With regard to performance, PAOs are able to maintain excellent thermal and oxidative stability as well as the low-temperature benefits they are known for. D = Severe Effect, not recommended for ANY use. The more similar in polarity the lubricants are, the more similar they will behave in the properties mentioned. The mineral oil has both lighter and heavier molecular weight materials. More importantly, however, was product performance. The chart below shows the effect of two different shear rate viscosity determinations on three different fluids (4 cSt at 100C) and the dramatic differences between them. Not Available - Chemical compatibility information is not available at this time. 97 0 obj Using PAOs with biobased oils can provide both high performance and biodegradability. Furthermore, the arbitrary distinction of 120 VI between Group II and III oils makes the quality requirements even more confusing. Metallocene-catalyzed commercial mPAO basestock grades can attain a viscosity of 300 cSt at 100C. High molecular weight compounds will degrade pour point, cold crank and other low-temperature viscometrics. If a certain application can sacrifice a 10 15C increase in the pour point, then there is as much as a 25% improvement in volatility, as shown in the chart below. I love to talk about food, and I love to talk about Synfluid PAO! Process Chemical Compatibility Guide More specialized polyolefins include polyisobutylene and polymethylpentene. Heavier components adversely affect low-temperature performance and pour point. 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. In our experience, some commercially available additive packages are designed to take better advantage of a specific base stock. Two major types of synthetic basestockspolyalkylene glycols (PAG) and polyalphaolefin (PAO)and the lubricants formulated from them, will be compared. 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. Consistent feedstocks give rise to consistent PAO quality, resulting in consistent finished fluid performance. A polyolefin is a type of polymer with the general formula (CH 2 CHR) n where R is an alkyl group. cally stable, have good compatibility with mineral oils and can be combined with other more polar synthetic basestocks (e.g. The benefit of a lubricant to the end user is an important question, and the behavior of a base oil is only one of many variables affecting the performance of a finished formulation. <<264FCCC095A7AD46A42A03D56AD5B96C>]>> 0000080859 00000 n <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Thumb 163 0 R/TrimBox[0.0 0.0 792.0 612.0]/Type/Page>> <> While viscosity improvers can enhance VI, they can break down over time, resulting in diminished performance. Its estimated that over 100 million gallons of fluids leak from hydraulic machinery and other lubricant equipment in North America each year! endobj polyalphaolefin compatibility chart. 2014-03-26T09:12:59.004-05:00 &&3#-j`t$f>3+Jo>9rTj!ft%lA+:k$BshQ(I"&sKH9~p0njga4Z#Sm!2Y-r+E)9]m%nFA}O3>Jo#iW/1Pxq5GJ1\/n.n_>$}RX\~7Zjqh=b$@t%W8zRu{@ BZfUq(_}I/0]J6AX8*sa}5b\$d`6."$? The choice of C10- or C12-derived PAO depends on the application and/or specification requirements. 93 0 obj One reason for moving to low-viscosity oils is to focus on initial and long-term fuel economy. The PAOs . These units provide a flow of temperature controlled fluid or Polyalphaolefin liquid. Some properties such as Viscosity Index (VI) or C viscosity can approach those of PAOs. The rotary bomb bench test is a strong predictor of how base oils will perform in many automotive and industrial applications. John Sherman is Shell Project Lead PAG Lubricant Technology, Industrial Oils and Tech Services; Robert Profilet is Technology Manager, Industrial Lubricants; Warren Cates is Shell Senior Researcher, Industrial Oils and Tech Services; Iris Song is Shell Engineer, Industrial Oils and Tech Services; and Sameer Sathaye is Shell Project Leader Industrial Oils, Industrial Oils and Tech Services. Polyalphaolefins (PAO)-60 to 125 C Stable, lubricious fluids compatible with most plastics and elastomers. As the chart below shows, greater energy efficient, lower viscosity oils can be made through the selection of PAO, without sacrificing volatility. It is not reactive at room temperatures, except by strong oxidizing agents, and some solvents cause swelling. Having a high viscosity index helps to protect an engine at temperature extremes. Low-temperature fluidity and high-temperature thermal and oxidative stability are key factors for choosing a PAO. PAO quality is unrivaled in the industry. With many new base oils being introduced to the market, lubricant consistency can really be a challenge. It is a synthetic hydrocarbon (SHC) that mimics the best hydrocarbon (branched) structure found in mineral oils. 0000017423 00000 n The chart differentiates the blending capabilities of various base oils to meet energy-efficient motor oils. 2014-03-26T09:16:41-05:00 This resistance to fire and flame propagation improves the margin of safety in the event of a hydraulic leak. Absolutely! 0000140193 00000 n 2023 DuPont. 0000001493 00000 n Thermal conductivity is the measure of the ability to conduct heat. False 0 From then on, the company introduced 1-dodecene-based PAOs in 1995, which have grown steadily in popularity. These are areas where PAOs excel. www.topworx.com Epoxy Polycarbonate PBT Brass 316 S.S. 304 S.S. 400 S.S. Aluminum Viton Buna N Neoprene EPDM Silicone Ammonium Phosphate, Monobasic A C B B B A A A A A Ammonium Phosphate, Tribasic A B B B B A A A A A Ammonium Sulfate A B B B A A A A A A Ammonium Thiosulfate A A A Amyl Acetate A A A A B A D D . C 20 40 60 20 40 60 80 100 20 40 60 80 100 20 40 60 80 100 120 20 40 60 . Applications for PAO-based lubricants expanded to circulating and gear oils. A run through the test: polyalphaolefin compatibility chart Posted by . PAOs demonstrate advantages in three key areas: safety, performance and environmental sensitivity. The tests used below were the Cold Cranking Simulator for high shear (about 10-1 sec-1) and Brookfield viscosity for low shear (about 2 sec-1) each measured at -20C. The properties, advantages, and disadvantages reviewed provide some of the main reasons why. One application in which they have not worked well is in high-temperature (high-pressure) reciprocating air compressors where valve deposits have been an issue. xmp.did:F87F1174072068118083E936383AAE83 0000010736 00000 n 0000036915 00000 n M/ B#z9lBGaB=]yz!sG !*, general guideline for pump material selection, from application/x-indesign to application/pdf. However, PAOs can help. You see, the jump hurts the pump.. 0000139372 00000 n European specifications, as well as those in other regions, are expected to tighten. Both lubricant types are used in industrial gearboxes, compressors, and even air conditioning systems. hb```b``nd`c``. However, PAGs and PAOs are two totally different chemical types of synthetic base stocks. We are first in your inbox with the most important news in the industry―keeping you smarter and one-step ahead in this ever-changing and competitive market. Chevron Phillips Chemical offers two lines of PAOs. To improve seal compatibility of PAO-based lubricants, an ester is added to the formulation to add some polarity. Since PAO fluids are synthetic hydrocarbons, they are compatible with and often combined with mineral-based oils. ]-]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+. PAO- and PAG-based lubricants are both hydrolytically stable and have low pour points. Give us a call. Were here to help. Ethylene is produced by cracking either crude oil or natural gas. 273 0 obj <> endobj xref 273 24 0000000016 00000 n The chart below shows an example of an engine oil formulation with two different quality PAOs. In the past three years, European specifications for volatility and oxidative stability have become significantly more stringent.
Cancer Weekly Horoscope Susan Miller,
Dr David Hartman Roanoke, Va,
Dr Moon Cardiologist Columbus, Ga,
Brendan Mcdonough Wife,
Articles P