Liquid bio-oil converted from renewable biomass is one of the important alternatives to petroleum in the future. In this work

wood creosote with more than 85% enrichment phenolic compounds was obtained by extraction purification of the wood tar. The main ingredients of the creosote include guaiacol

paracresol

etc.

which have good reactivity with formaldehyde. Then

w=50% of the wood creosote was used to substitute phenol for manufacturing wood creosote modified phenolic foam. The optimum conditions for preparing A-stage phenolic resin were determined by orthogonal test. It was found that the amount of NaOH catalyst was a key factor of preparing A-stage phenolic resin

and the curing of the foam plastics needed to use sulfuric acid as the catalyst. The foams-mechanical properties could be tailored by using different foaming processes. The amount of curing agent

foaming agents and foaming time and temperature exerted great influence on the foams properties. Under optimum conditions

a kind of foam with cell diameter of 200 μm

compressive strength of 1 003.8 kPa and modulus of 25.37 MPa was obtained

which satisfied the requirement of phenolic foam plastics of national standards.