Development in the Modification of Phenolic Resin by Renewable Resources: (A-Review)

Abstract

Furfural and cashew nut shell liquid are both renewable resources that can be used for the manufacture of a multitude of useful products. Herein this review is studied to be made concerning the replacement of phenol and aldehyde compounds in the phenolic resin. Cardanol is a phenol-based by-product having an unsaturated alkyl chain and is thus a promising renewable substitute for the development of phenolic resin. This review focuses on the synthesis process of modified phenolic resin by renewable resources, which is further modified by epoxidation, esterification, urea-melamine modification etc. which improved thermal and adhesive and anti-corrosive properties. Mainly phenolic resin is used with natural and synthetic fiber reinforcement and hybrid fiber-reinforced composite, which promote improvements in mechanical properties.