Phenolic (PF) resin was prepared and applied to enhance the mechanical strength of aramid paper in this paper. Effects of mol ration of formaldehyde to phenol and the molecularity of the prepared phenolic resin on the mechanical properties of the strengthened aramid paper were studied. The chemical structure and the molecular mass of prepared PF resin were characterized. The comprehensive performances of aramid paper before and after being strengthened by PF resin were tested. The Micro-morphology of aramid paper was observed by Scanning Electron Microscopy (SEM). The results shows that the comprehensive performances of aramid paper were greatly enhanced after being strengthened by PF resin. It is expected that the prepared PF resin has a promising application in the aramid paper industry.
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