Biosynthetic Technologies offers a wide variety of Castor Oil Derivatives for metalworking fluid applications. Biosynthetic Technologies currently offers the following Castor Oil Derivatives:
Ricinoleic acid, formally called 12-hydroxy-9-cis-octadecenoic acid is a fatty acid. It is an unsaturated omega-9 fatty acid and a hydroxy acid. It is a major component of the seed oil obtained from mature Castor plant (Ricinus communis L., Euphorbiaceae) seeds or in sclerotium of ergot (Claviceps purpurea Tul., Clavicipitaceae).
Ricinoleic Acid is used as a thickener for silicon grease, as a rubber activator/accelerator and in the manufacture of certain personal care products, among other applications. This product can be used as a sustainable alternative to other emollients and thickeners. 12-hydroxy stearic acid is entirely vegetable-based, and not tested on animals at any part of the manufacturing process. Its GMO-free, and contains no peanuts, tree nuts, wheat, grains, dairy, eggs, fish or gluten. It also contains no residual solvents and is REACH registered for use in the European Union. 12-hydroxystearic acid is nonreactive, nonflammable and not an explosive hazard.
Castor Oil and its Properties
Castor beans are cultivated for their seeds, yielding a viscous, pale yellow nonvolatile and nondrying castor oil.18 The physical properties of castor oil have been studied. Comparative analysis showed that the values of viscosity, density, thermal conductivity, and pour point for castor oil were higher than the values of a standard lubricant (SAE 40 engine oil).
Applications of castor oil and its derivatives
- Polymer materials – Castor oil and its derivatives can be used in the synthesis of renewable monomers and polymers. Biodegradable polyesters are one of the most common applications using castor oil. They are known to be biodegradable and environmental friendly, with a wide array of applications in the biomedical field, as well in the preparation of elastomers and packaging materials.
- Soaps, waxes, and greases – Castor oil has been used to produce soaps in some studies. Some studies also utilize castor oil in waxes. One study by Dwivedi and Sapre utilized castor oil in total vegetable oil greases. Total vegetable oil greases are those in which both the lubricant and gellant are formed from vegetable oil. Their study utilized a simultaneous reaction scheme to form sodium and lithium greases using castor oil.
- Lubricants, hydraulic, and brake fluids – Castor oil has also been used for developing low pour point lubricant base stocks through the synthesis of acyloxy castor polyol esters. The low pour point property helps to provide full lubrication when the equipment is started and is easier to handle in cold weather. An interesting study showed the excellent potential of castor oil-based lubricant as a smoke pollution reducer. In this research, a biodegradable two-stroke (2T) oil, a popular variety of lubricating oil used on two-stroke engines in scooters and motorcycles, was developed from castor oil, which consisted of tolyl monoesters and performance additives, but no miscibility solvent. Their performance evaluations showed that it reduced smoke by 50%–70% at a 1% oil–fuel ratio, and it was on par with standard product specification. In addition to the possible use as a car engine lubricant, a modified version of castor oil lubricant comprising 100 parts of castor oil and 20–110 parts of a chemically and thermally stable, low viscosity blending fluid, soluble in castor oil showed its potential as a lubricant for refrigerator systems.
- Coatings – Coatings and paints are also another application of castor oil.