Application of water-soluble phenolic resin in fuel oil filter paper

An environment-friendly modified water-soluble phenolic resin(PF),which had lower free formaldehyde emission(0.92%) and could be used for reinforcing fuel oil filter paper,was prepared.The influences of the processing technique,including PF impregnating and curing,were further discussed on mechanical properties,fuel oil resistance and water resistance of impregnated filter paper.The results showed that the impregnated filter paper had excellent fuel oil resistance and well water resistance because its bursting strength was 342 kPa,stiffness at 15° bending angle was 6.61 mN.m,average tensile strength was 6.37 kN/m and elongation at break was 3.86%(namely better flexible) after the filter paper was impregnated by modified water-soluble PF.The combination property of impregnated filter paper could reach the level of import similar products,so its application in fuel oil filter was feasibility