2002a. The combination of a growing desire in the fluid market for biodegradability as well as renewable, less-costly alternatives suggests that this canola oil-based product can serve as a practical replacement for synthetic polyol esters, especially in applications where fire resistance is a paramount concern. More double bonds makes a material more prone to rapid oxidation. They are polyglycols, polyol esters and naturally occurring triglycerides (known more widely as vegetable oils). Oil viscosity is typically measured and de ned in two ways, either based on its absolute viscosity or its kinematic viscosity. These 4-component fluids consist of glycol, polyglycol polymer, additives, and 35 to 50% water. Water glycol fluids offer maximum fire resistance and low price, but have only moderate lubricity. Mineral oils have VIs below 100, PAO synthetic oils around 150, while high-oleic canola oil has a VI of 220. The legacy product portfolios of both Quaker and Houghton can now be offered to the combined, complementary customer base, where 14,000 of the 15,000 total customers are unique to one company or the other. Quaker Chemical was founded in 1918 and Houghton in 1865. Fully compounded vegetable oil fluids are over 90% biodegradable. Ring and vane loss was less than 12 mg for both the synthetic polyol ester and properly formulated canola oil. Anhydrous or non-water containing products, on the other hand, provide lubrication much like mineral oil. Oxidation stability - The Rotating Bomb Oxidation Test was applied with these results: bomb life ranged from 55 to 180 minutes for several synthetic polyol esters that were evaluated. Corn oil viscosity showed the greatest increase over 36 h and the highest correlation between viscosity and heat transfer coefficient (−0.959). Tests have now demonstrated that additive technology can further be applied to enable vegetable oils to perform like polyol esters. Polyglycols were the first base stocks to be formulated into biodegradable fluids. Where fire resistance is a primary concern, synthetic polyol esters have performed well in extreme operations for over 25 years. Naturally occurring triglycerides, or vegetable oils, while favored for their inherent biodegradability and low environmental impact, traditionally have exhibited low oxidative stability. This goal can be achieved. A study was carried out to determine the effect of higher shear rates (64.5 to 4835 s −1 ) on the absolute viscosities of different vegetable oils at different temperatures (26 to 90°C). Modelling the Temperature Dependence of Kinematic Viscosity for Refined Canola Oil. Quaker Chemical Corp., Conshohocken, Pa. and Houghton International, Valley Forge, Pa. have combined to create Quaker Houghton. An industry goal has been to develop a vegetable-oil-based (or naturally occurring-ester) fire-resistant fluid that can equal the performance properties found in synthetic esters while reducing fluid costs in the process. These results equate with high-performance hydraulic oil. However, by combining specially formulated additive packages with selected vegetable-oil base stocks, these known deficiencies can be overcome. The absolute viscosities of the different vegetable oils were determined using a Lamy … Polyol esters feature a viscosity index above 150; a flash point between 530° and 550° F; and a fire point between 600° and 615° F. As an anhydrous fire-resistant fluid, synthetic polyol esters have proven ideal for applications such as high-performance mill equipment operating at pressures above 3000 psi (as high as 5000 psi). By optimizing additive packages and using selected base stocks, naturally occurring ester fluids can have oxidation stability and lubricity performance on a par with synthetic polyol ester fluids. A viscosity index below 100 is considered low, while a VI higher than 200 is considered very high. The hydraulic fluid also should be fire-resistant. The standard test procedure requires that the same charge of fluid be tested with satisfactory results in three successive 50-hour test runs. e absolute viscosity of oil is its resistance to ow ... canola oil, grape seed oil, macadamia nut oil (cold pressed), olive oil (mixture of cold pressed and re ned), peanut oil, rapeseed oil … Canola oil is a vegetable oil derived from a variety of rapeseed that is low in erucic acid, as opposed to colza oil.There are both edible and industrial forms produced from the seed of any of several cultivars of the plant family Brassicaceae.. But they are the highest priced biodegradable fluids. soybean, and palm oils were chosen .