Preparation method of adhesive for artificial boards

Abstract

The invention discloses a preparation method of an adhesive for artificial boards. The preparation method comprises the following steps: (1) adding talcum powder into a certain amount of water, and stirring to fully dissolve the talcum powder; (2) heating the solution obtained in the step (1), adjusting the pH, then adding starch and polyether polyol in sequence, and heating the solution under stirring; (3) adding sodium meta-borate and sodium benzoate into the solution obtained in the step (2), adjusting the pH, adding urea, and stirring the solution; and (4) adding high molecular weight thermoplastic resin, heating the solution under stirring, and naturally cooling the solution to obtain the adhesive. The adhesive does not release toxic gas, has good environmental coordination, avoids the formaldehyde pollution, has a lower content of VOCs, and is more environment-friendly, compared with the conventional adhesives.

Description

technical field [0001] The invention relates to a board adhesive, in particular to a preparation method of an adhesive for artificial boards. Background technique [0002] With the improvement of people's living standards and the continuous and stable development of construction, decoration, packaging and other industries, the output of wood-based panels in my country has increased rapidly. The adhesives commonly used in the production of wood-based panels are formaldehyde-based synthetic resins, mainly urea-formaldehyde resins and their modifications. product. After years of hard work, the production level of wood-based panel adhesives in my country has been greatly improved, and the environmental protection characteristics of wood-based panels and their products have been greatly improved, but the formaldehyde release of their products cannot be completely eliminated, and many enterprises produce wood-based panels and their products. (Furniture, wood flooring, interior wood...

AI Technical Summary

Problems solved by technology

After years of hard work, the production level of wood-based panel adhesives in my country has been greatly improved, and the environmental protection characteristics of wood-based panels and their products have been greatly improved, but the formaldehyde release of their products cannot be completely eliminated, and many enterprises produce wood-based panels and their products. (furniture, wood flooring, interior wood decoration materials, etc.) still have a relatively serious formaldehyde release problem, which is the main source of formaldehyde pollution in indoor air pollution