Degummed cashew nut shell liquid
Degummed Cashew Nut Shell Liquid (CNSL) is a versatile, non-edible byproduct of the cashew processing industry. While raw CNSL contains high levels of gums and impurities, the degumming process refines the liquid, making it a valuable industrial raw material, particularly in the green chemical sector.
Applications
- Friction Materials. Used to manufacture brake linings and clutch facings due to its excellent heat resistance.
- Surface Coatings. Acts as a base for anti-corrosive paints, especially in marine environments.
- Laminating Resins. Provides flexibility and chemical resistance to industrial laminates.
- Insulating Varnishes. Utilised in electrical components for its high dielectric strength.
- Foundry Chemicals. It serves as a core oil in foundry operations, helping to bind sand moulds that require high thermal stability.
Characteristics
- Appearance. A dark reddish-brown, viscous liquid.
- Odour. Characteristic phenolic, slightly acrid scent.
- Solubility. Soluble in most organic solvents; insoluble in water.
- Specific gravity. Typically ranges between 0.950 and 0.970 at 25°C.
- Viscosity. Significantly lower than raw CNSL, improving its flow and “pumpability” in industrial settings.
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