SYNTHESIS, CHARACTERIZATION AND APPLICATION OF PHENOL-FORMALDEHYDE RESIN BLENDED WITH SULPHONATED SAPINDUS MUKOROSSI KAERTN CARBON

摘要

Phenol-Formaldehyde Resin (PFR) is blended with Sapindus mukorossi KAERTN Carbon (SSMC) in various proportions by weight percentage (0-50%w/w). A few composite cation-exchangers were prepared by varying the amount of SSMC (a source of cheap and renewable plant material) in the blends from 10 to 50% (w/w). Reaction conditions for the preparation of blends were optimized. IR spectra, TGA traces, and SEM photos were taken for the characterization of resins. Physico-chemical, properties of the composite resins have been determined. The composites are insoluble in various solvents and reagents and stable towards heat. Cation exchange capacity (CEC) of the composite resins, decreased with the increasing percentage of SSMC in the blend. The composites up to 20% (w/w) blending retains all the essential properties of the original PFR, since the Sapindus mukorossi KAERTN, is the low cost, freely available plant material. Therefore, the composites could be used as low cost ion-exchangers, when SSMC partly replaces the original PFR up to 20% (w/w) blending without affecting the properties of PFR.