Cashew nut shell liquid (CNSL) resins have been used extensively in the manufacture of friction-resistant components in applications such as brake and clutch linings. These resins are used as binders for friction ingredients and also as friction ingredients themselves in the form of fine dusts obtained from the completely cured resins.
Cashew nut shell liquid (CNSL)-aldehyde condensation products and Cashew nut shell liquid (CNSL)-based phenolic resins are used in applications such as surface coatings, adhesives, varnishes and paints. Various polyamines synthesised from CNSL or cardanol are used as curing agents for epoxy resins. Cashew nut shell liquid (CNSL) and its derivatives have been used as antioxidants, plasticisers and processing aids for rubber compounds and modifiers for plastic materials.
Resins based on the reaction products of cardanol phenol and formaldehyde are used to improve the resistance of rubber articles to cracking and ozone. Cashew nut shell liquid (CNSL), cardanol and cardol are all used to provide oxidative resistance to sulfur-cured natural rubber products. Cardanol, Cashew nut shell liquid (CNSL) or sulfurated Cashew nut shell liquid (CNSL) is added to rubber gum stock or nitrile rubber to improve the processability, mechanical properties and resistance to crack and cut properties of the vulcanisates.
A number of products based on Cashew nut shell liquid (CNSL) are used as antioxidants, stabilisers and demulsifiers for petroleum products. Metal xanthates of partially hydrogenated, sulfurised cardanol is used to lower the pour point of lubricating oils as well as acting as antioxidant and anticorrosive properties. Soluble metal derivatives of Cashew nut shell liquid (CNSL) are used to improve the resistance to oxidation and sludge formation of lubricating oils. Oxidised Cashew nut shell liquid (CNSL) and its derivatives are used as demulsifying agents for water in oil type petroleum emulsions.
Application of Cashew nut shell liquid (CNSL)
Cashew nut shell liquid (CNSL) Formaldehyde resins are used for brake liner binding preparation
Above resin dissolved in aromatic solvent provide weather proof heat and fire resistant dark color paint
A rubbery gel formaldehyde condensation product of cnsl is used in cementing of floors
Adhesive for wood particle
Resole type Cashew nut shell liquid (CNSL) formaldehyde resin in adhesive in the preparation of composite wood,medium density particle board etc..
proven material in the formation of foundry core