Wood adhesive prepared from bamboo pulp waste liquid and preparation method thereof

The invention belongs to the technical field of adhesive preparation, and provides a wood adhesive prepared from bamboo pulp waste liquid and a preparation method of the wood adhesive. The method comprises the following steps: S1, mixing bamboo pulp waste liquid, phenol and a catalyst, and then carrying out phenolation liquefaction reaction to obtain a liquefied product; and S2, mixing the liquefied product with a formaldehyde solution, and carrying out resinification reaction to obtain the wood adhesive. The wood adhesive with high water resistance is prepared by degrading high-molecular-weight bamboo lignin into small-molecular groups with high reaction activity by utilizing the characteristic that the content of lignin in the bamboo pulp waste liquid is relatively high and through a phenolation and liquefaction method, replacing a petrochemical product phenol and then reacting with formaldehyde. And a new way is provided for the treatment of the bamboo pulp waste liquid. 本发明属于胶黏剂制备技术领域，本发明提供了一种利用竹浆废液制备的木材胶