CASHEW NUT SHELL LIQUID (CNSL)
CASHEW NUT SHELL LIQUID (CNSL) is a versatile raw material for the production of number of commercially important products specially for Surface Coatings because of its special composition. Considerable amount of work has been done with great success in various Research Laboratories and Industries both in
Products from CNSL
CNSL polymerises because of the unsaturation in the side chain of cardinal, when heated in the presence of some metals like copper, aluminium, lead or their oxides. This forms good media for paints when further cooked with drying oils.
Phenol Formaldehyde Resins of the Novolac or Resole types are well known. Similar reactions also take place with CNSL, but due to the presence of the long hydrocarbon chain the condensates are more flexible than the conventional Phenolic Resins. These resins can be used for Surface Coatings with or without oil modification when high chemical resistance is desired. CNSL Aldehyde condensation products have also been used for other purposes like insulating Varnishes, Moulding Powders, Brake Lining Compositions, etc.
Other Derivatives from CNSL
Other derivatives of CNSL are used in the preparation of surface-active agents by:
Properties of CNSL
The physical and chemical characteristics of CNSL are as follows: