Urea-formaldehyde resin (UF), also known as urea-formaldehyde resin, is formed by polycondensation of urea and formaldehyde under the action of a catalyst (alkaline or acidic catalyst) into an initial urea-formaldehyde resin, and then forms an insoluble and infusible final stage under the action of a curing agent or an auxiliary agent. thermosetting resin. The color of cured urea-formaldehyde resin is lighter than that of phenolic resin, and it is translucent. It is resistant to weak acids and alkalis, has good insulation performance, excellent wear resistance, and is cheap. In the manufacture of various wood-based panels in the wood processing industry, urea-formaldehyde resin and its modified products account for about 90% of the total amount of adhesives used. However, urea-formaldehyde resin is easy to decompose when encountering strong acid and strong alkali, and has poor weather resistance, poor initial viscosity, large shrinkage, high brittleness, water resistance, and easy aging. There is formaldehyde release in the manufacture and use of wood-based panels produced with urea-formaldehyde resin.