ResistanceTo Alkali And Acid Solutions,To Mineral And Fatty Oils
Heat DissipationFaster Than Phenol
Fade ReductionConsiderable
CNSL is a reddish brown viscous liquid extracted from a soft honeycomb structure inside the cashew nutshell and is a by-product of the Cashew industry.It is extracted from the cashew nut shell, which is a pericarp fluid of the Shell nut. CNSL is a mixture of four components: all are substituted phenols - anacardic acid (I), cardanol (II), cardol(III) and 2-methyl cardol(IV).
Anacardic Acid and Cardanol are monohydric phenols whereas Cardol and 2-methyl cardol are dihydric phenols. In the nut, CNSL occurs mainly as an anacardic acid (~90%) and cardol around slightly lower than 10%. The dual phenolic/alkenyl nature of CNSL makes it a potential natural raw material for the synthesis of water-resistant resins and polymers.
Properties
CNSL undergoes all typical phenolic reactions. Its versatility in polymerization, chemicals modification and low cost find its application in the polymeric based industries. Its properties have advantages over phenolic in certain applications such as impact resistance, flexibility, faster heat dissipation, anti corrosive, anti- microbial, insecticidal and resistant to alkali and acid solutions as well as mineral and fatty oils and various organic solvents.
Applications
CNSL is primarily used as raw material for CNSL Liquid Resin, PF Resin and Cashew Friction Dust(CFD) for Automobile Brake linings. It is also used for the manufacture of Paint and Varnishes, Epoxy Resins and Oil soluble Resins, Surface Active Agent, Synthetic Rubber & Wax compounding, Foundry Resins, etc...
Low-cost Phenol
Versatility in Polymerization as Chemical Modification
Property advantage over phenolics in application such as impact resistance, flexibility, faster heat dissipation, etc.
Solubility in Organic Solvents
Improved Process ability
Low fade characteristics for friction
Resistance to 'Cold Wear'
Good electrical resistance
Better water repellence
Improved alkali and acid resistance
Compatibility with other polymers
Antimicrobial property
The CNSL-based products not only enhance and improve the quality but also impart distinct performance of the product. They find extensive use in automotive Brake Lining and Clutch facing applications as binders / friction dust. CNSL–Formaldehyde (CF) resins improve impact properties and reduce fade considerably by dissipating heat faster than phenol. Moreover, the cost of CF resins is always lower than that of PF resins.
Post Free Ad
www