The invention discloses a high-
mildew-resistance and water-resistance
soybean meal protein adhesive and a preparation method thereof, and particularly relates to the technical field of adhesives. Thehigh-
mildew-resistance and water-resistant
soybean meal protein adhesive is prepared from the following components in parts by
mass: 10-50 parts of degreased
soybean meal powder, 80-120 parts of water, 1-20 parts of a cross-linking agent, 0.2-6 part of a natural
mildew inhibitor and 0.5-8 part of a
viscosity regulator. The preparation method of the high-mildew-resistance and water-resistance soybean
meal protein adhesive comprises the following steps: S102, uniformly mixing degreased soybean
meal powder, water and a cross-linking agent to prepare
viscous liquid; S104, adding a natural mildew preventive into the
viscous liquid obtained in the S102, and carrying out dispersion treatment by using mechanical dispersion equipment until the temperature of the
viscous liquid does not exceed 50 DEG C in the dispersion process; and S106, adding a
viscosity regulator into the viscous liquid obtained in S104, and controlling the temperature
not to exceed 70 DEG C in the stirring process to finally prepare the adhesive. According to the technical scheme, the problems that an existing soybean
meal protein adhesive is prone to mildewing and poor in
viscosity are solved, and the soybean meal protein adhesive can be used for improving the adhesion performance of artificial boards.