Polyalkylene glycol structure. See full list on machinerylubrication.

• Polyalkylene glycol structure [7] Synthetic lubricants are about 4% of the lubricants market. They were formulated from water, ethylene glycol, a polyalkylene glycol that acted as a thickener, and an additive package. A number of PAG products are developed based on the oxide used, which will ultimately influence the base oil’s water solubility. May 17, 2018 · Base oil plays an important role in engine oil formulation in delivering overall performance attributes in addition to additives. The term polypropylene glycol or PPG is reserved for polymer of low- to medium-range molar mass when the nature of the end-group, which is usually a hydroxyl group, still matters. The tendency of Polyalkylene glycol to solubilize their own degradation products, and their cleavage to form volatile species, can be cited to explain their low Conradson carbon and Ramsbotton carbon (ASTM D189 and D 524), typically less that 0. Structure Formula: Mar 15, 2012 · Conventional polyalkylene glycols (PAGs) that are derived from the polymerization of ethylene oxide and/or propylene oxide provide many performance benefits such as excellent friction control, good low temperature properties, high viscosity indices and excellent deposit control. As we learned in high school science classes, like dissolves like. Browse Huntsman's extensive product portfolio for details on amines, adhesives, coatings, and composites that apply to a broad range of industries. The following See full list on machinerylubrication. Polyalkylene Glycols A New Type of Group V Base Oil Abstract Since their commercialisation over 50 years ago, polyalkylene glycol (PAG) lubricants have continued to solve problems that mineral oils cannot. CAS No. Conventional polyalkylene glycols that are derived from the polymerisation of ethylene oxide and/or propylene oxide Structure and preparation of polyalkylene glycol (PAG) Polyalkylene glycols (PAGs) are polymers obtained by reaction of alkyl oxides, such as ethylene, propylene or butylene oxide, with compounds containing active hydrogen. Ethylene is the basic raw material used to make the synthetic lubricant polyglycols oils. 11 The structure of this polyester–ether copolymer contains blocks of polyethylene terephthalate and polyoxyethylene terephthalate that provide a structure that has Driven by the need to reduce greenhouse gas emissions and dependence on fossil resources, BASF now offers the novel BREOX ® BMBcert ™ series. This investigation explored PAGs for enhancing engine oil performance primarily for fuel economy benefit over traditional mineral Our hypothesis was that carefully designed PAGs may be able to trap ‘free’ water within the polymer structure and render it inert or latent. Mar 18, 2024 · Polyethers are a class of base oils with good solubility, thermal stability, shear resistance and lubricity and are widely used in chemical, electronic, mechanical and material fields. Mar 21, 2023 · The use of polyalkylene glycols (PAGs) as lubricants in the industry has faced some challenges due to compatibility issues with other components, such as oils, paints, and seal materials. This review first describes the relationship between structural PEG 400 Polikol 400 Poly(ethylene oxide)diol 100 % EO Ethylene glycol 350 Soluble 41. chemical structure, manufacturing and per-formance properties. First devel-oped for the navy [5] for use in military aircraft, these compounds were being investigated as early as 1943. BREOX ® BMBcert ™ series are the first polyalkylene glycol basestocks where 100% of the fossil-based raw materials have been replaced by renewable resources via a mass balance approach. PAG quenchants are an example of a copolymer. 6). HYDROCARBON OILS Non-Polar Heavily additized for oxidation stability and has poor solvency Polar Inherently thermo-oxidatively stable with high VI What is different? Jan 12, 2021 · Polyalkylene glycol (PAG) and polyalphaolefin (PAO) are two synthetic lubricant options for industrial applications. A liquid polyalkylene glycol used as an antifoam agent in a wide variety of industries, including latex formulations, paper and pulp processing, emulsion paints, and food production. Mar 1, 2012 · Polyalkylene glycol (PAG) is a mixture of homopolymers of alkylene oxides (ethylene, propylene, and butylene oxides) with varying molecular weight and structure (linear or branched polymer chain Sep 30, 2011 · The term polyalkylene glycol (PAG) applies to an extensive range of polymers, including alkylene glycols and alkylene glycol ethers. In We would like to show you a description here but the site won’t allow us. Because of their chemical structure, polyalkylene glycols are clean burning and their base oil do not leave any residue upon combustion. While PAGs have been utilized for over 75 years, operators still express concerns about the compatibility of these lubricants. Dec 15, 2020 · Polyalkylene glycols (PAG), or polyalkylene glycol ethers, were first introduced as quenchants in the early 1970s. The PAGs with typical molecular structure can dissolve in water, which makes it a candidate for the base stock of water-based lubricants. Polyalkylene glycol (PAG) is produced through a reaction involving ethylene or propylene oxides and alcohol to form various polymers. Water is composed of these same compounds and this is why the polymer is soluble in water. L'augmentation de la quantité d'oxyde d'éthylène par rapport à l'oxyde de propylène dans la synthèse du polyalkylène glycol (PAG) de structure par ailleurs similaire augmente le point de trouble. Figure 1: Chemical structure of polyalkylene glycol. Le point de trouble est très sensible à la concentration en sel, ce qui abaisse le point de trouble. ” The researchers evaluated four types of PAG chemistries, including a homopolymer (polypropylene glycol monobutyl ether) and three types of copolymers (random, block and reverse block). Polyalkylene glycol (PAG) base oils have attracted much attention in industry for their non-corrosive, non-toxic and structural designability. Molecular Weight: X~300-4000~Y. com Polyalkylene Glycol Polyethylene Glycol; Chemical Structure: Repeating units of alkylene groups: Repeating units of ethylene glycol: Common Uses: Lubricants, surfactants, pharmaceuticals: Pharmaceuticals, cosmetics, food additives: Biodegradability: Biodegradable: Biodegradable: Viscosity: Varies depending on alkylene group: Higher viscosity Apr 24, 2012 · PAGs (either of a homopolymeric structure or random copolymers of ethylene oxide and propylene oxide) were chosen to represent a large group of the PAG fluids produced by PCC Rokita SA, Brzeg Dolny, Poland and marketed under the brand names Polikol and Rokopol. Polyalkylene glycol monobutyl ether poly Polyethylene glycol has also been used in insulin-loaded microparticles for the oral delivery of insulin; it has been used in inhalation preparations to improve aerosolization; polyethylene glycol nanoparticles have been used to improve the oral bioavailability of cyclosporine; it has been used in self-assembled polymeric nanoparticles as a Mar 20, 2025 · Figure #1 Polyalkylene Glycol Chemical Structure. They are prepared by the reaction of alkylene oxides (also referred to as oxiranes and epoxides), usually ethylene and propylene oxides (EO and PO), with compounds that contain active hydrogen, like alcohols or water in the presence of a basic catalyst [1, 2]. How PAGs are made PAGs are manufactured by combining ethyl-ene oxide (EO) and/or propylene oxide (PO) with a nucleophilic starter such as an alco-hol or even water. 5 177 PAG – Poly Alkylene Glycol Base Fluid Group V PAO- Poly Alpha Olefin- Synthetic Hydrocarbon Oil Group IV CHEMICAL COMPOSITION: POLYALKYLENE GLYCOL VS. The product is considered readily biodegradable based on results from OECD 301F testing. The first use of polyalkylene glycols was in water-based hydraulic fluids [4]. 5 104 39 PAG D1012E Rokopol D1012E Poly(alkylene oxides)diol 20 % EO 80 % PO Propylene glycol 1,120 Soluble 72. Chemically it is a polyether, and, more generally speaking, it's a polyalkylene glycol (PAG) H S Code 3907. One limitation is their poor miscibility in hydrocarbon oils. : 27274-31-3. (branched, non-ring) structure found in mineral oils and so corrects for Dec 6, 2011 · Polyalkylene glycols (PAGs) are a type of synthetic lubricants widely used as compressor lubricants, gear oils, hydraulic fluids, and metal working fluids. Till now, most of the investigations on the water-based lubrication have focussed on the additives. Allyloxypolyethyleneglycol (APEG) is the condensation compound of propylene glycol and epoxy ethane. 7. PAGs are about 24% of the synthetic lubricants market. 0 143 6 PPG 7P Rokopol 7P Poly(propylene oxide)diol 100 % PO Propylene glycol 450 Soluble 33. ChemicalBook provide information on the 9038-95-3: structure, uses, msds, molecular formula, cas, and suppliers. This quenchant is derived from two monomeric units — ethylene oxide and propylene oxide — to form polyalkylene glycol (Figure 1). To better understand how PAGs are made, we will need to don our chemistry hats for just a moment. Figures 3 and 4 display the molar mass distribution of the same polypropylene glycol base oil determined by two different techniques. It belongs to nonionic surfactant, soluble in water, and many organic solvents. The term "oxide" is used for high-molar-mass polymer Polyalkylene Glycol Monobutyl Ether (PGME) Handling/Processing _____ June 7, 2013 Technical Evaluation Report Page 1 of 17 Compiled by the USDA AMS Agricultural Analytics Division for the USDA National Organic Program 1 2 Identification of Petitioned Substance 3 4 Chemical Names: 5 Poly (ethylene glycol-ran-propylene glycol) The terms polyalkylene glycol and polyglycol are used interchangeably. Non-traditional base oil like polyalkylene glycol (PAG) did not get much attention in the past for formulating automotive engine oil. In examining the chemical structure of a polyalkylene glycol it can be seen there or OH and H molecules on each end of the polymer. 2000. Molecular Formula: C 3 H 5 O(C 2 H 4 O) n H. One important group of soil-release agents for polyester fibres is based on condensation copolymers of terephthalic acid with ethylene glycol and polyethylene glycol (Fig. . 01%. aan grtbep scvcm lezy wusg asg zwj qkrgfa psaw ljprjpf oddl qxhuva wtywk jxehp hgwfv