Preparation method for boric acid/pyrolytic oil co-modified thermosetting phenolic resin applied to artificial boards

The invention relates to a preparation method for boric acid/pyrolytic oil co-modified thermosetting phenolic resin applied to artificial boards, belonging to the field of preparation technologies for adhesives. The method comprises the following steps: pouring boric acid into pyrolytic oil and carrying out mixing under stirring so as to form boric acid/pyrolytic oil mixed liquor; adding a sodium hydroxide solution into the boric acid/pyrolytic oil mixed liquor drop by drop under continuous stirring so as to form boric acid/pyrolytic oil co-modification liquid; adding phenol and another sodium hydroxide solution into a reaction vessel, starting stirring, carrying out heating and adding a formaldehyde solution after heating; then successively carrying out heating, heat preservation and cooling and adding another formaldehyde solution and another sodium hydroxide solution; carrying out heating again, adding the boric acid/pyrolytic oil co-modification liquid and maintaining the temperature; and detecting the vi