The Synthesis And Properties Of Biomass Modified Phenol-Formaldehyde Resin

In order to search for renewable resources to replace the raw materials of phenol-formaldehyde resin and obtain the excellent performance of the modified phenol-formaldehyde resin, the effects of biomass on properties of phenol-formaldehyde resin are examed. By using DMTA, FT-IR, TG and other advanced analytical tools to explore mechanism of action in different amount of plant polyphenols, rare earth metal compounds, oil tea meal and oil tea shell on properties and cost reduction of phenol-formaldehyde resin. The results show that, plant polyphenol not only improve bonding strength of phenol-formaldehyde resin, but also toughness. Rare earth metal compounds can improve bonding strength of phenol-formaldehyde resin and plant polyphenols modified phenolic resin. Under present study condition, structure of rare earth metal compounds impact their effect, and RE-a is the best. Oil tea meal and oil tea shell after modification and extraction can replace more than 20% phenol and formaldehydein in synthesis of phenol-formaldehyde resins and they can improve bonding strength. Oil tea meal and oil tea shell not only improve environmental protection, reduce production costs of phenol-formaldehyde resins, but also opened up a new way of high-value use for rich resources of oil tea processing residues.