Cnsl Oil - Viscous Cashew Nut Shell Liquid, Versatile Applications In Adhesives, Coatings, Rubber Compounding, Phenolic Resins

Cnsl Oil is a versatile by product of the Cashew industry. The nut has a shell of about 1/8 inch thickness inside which is a soft honey comb structure containing a dark reddish brown viscous liquid. It is called cashew nut shell liquid or cnsl oil. Which is the pericap fluid of the Cashew Nut. It is often considered as the better and cheaper material for unsaturated phenols.

cnsl oil has innumerable applications, such as friction linings, paints, laminating resins, rubber compounding resins, cashew cements, polyurethane based polymers, surfactants, epoxy resins, foundry chemicals, and intermediates for chemical industry. It offers much scope and varied opportunities for the development of other tailor-made polymers.

cnsl oil undergoes all the conventional reactions of phenols, CNSL aldehyde condensation products and cnsl oil based phenolic Resins are used in applications such as surface coatings, adhesives. Various polyamines synthesised from cnsl oil are used s curing agents for epoxy resins. cnsl oil and its derivatives have been used as antioxidants, plasticizers and processing aids for rubber compounds, modifiers for plastic materials and used to provide oxidative resistance sulphur-cured natural rubber products. It is also added to rubber gum stock or nit rile rubber to improve the processability, mechanical properties and resistance to crack and cut properties of the vulcanisates.