Method for manufacturing three-layer solid wood composite floor through microporous treatment of hardwood surface board

Abstract

The invention discloses a method for manufacturing a three-layer solid wood composite floor through microporous treatment of a hardwood surface board. The method includes preparing of the hardwood surface board, microporous treatment of the hardwood surface board, core bar gluing, assembling of the hardwood surface board obtained after microporous treatment, a glued core bar and a back board, hotpressing gluing and subsequent machining. The method is characterized in that hardwood is adopted for preparing the surface board according to technological requirements; the prepared surface board issteeped in a modifying agent with the certain mass fraction and then is dried; and the dried surface board is subjected to high-temperature microporous treatment under the shield of water vapor or nitrogen, and then the three-layer solid wood composite floor where the hardwood surface board is subjected to microporous treatment is manufactured. The adsorbability of the hardwood surface board obtained after microporous treatment is used for adsorbing harmful gases generated by using adhesives and coatings in the production process of the three-layer solid wood composite floor, nanometer titania contained in the surface board obtained after microporous treatment is used for gradually decomposing the adsorbed harmful gases such as formaldehyde and VOC into carbon dioxide and water, and therefore the surface board can have a lasting effect for adsorbing the harmful gases.

Description

technical field [0001] The invention belongs to indoor and outdoor decoration materials, which is a kind of hard miscellaneous wood as the main raw material, through the microporous treatment of the hard miscellaneous wood surface plate, using modified API adhesive, modified urea-formaldehyde resin adhesive, phenolic formaldehyde Resin adhesives, etc., are glued together with solid wood core strips and rotary-cut veneers. It has a certain degree of adsorption of harmful gases and stable dimensions. Microporous three-layer solid wood composite flooring. Background technique [0002] During the growth and processing of wood, it is prone to uneven stress or shrinkage and swelling due to drying, which reduces its processing utilization rate. The heat treatment modification technology of wood is not only a functional improvement of wood, but also one of the ways to alleviate the scarcity of wood resources. The application of wood heat treatment modification process can improve t...

AI Technical Summary

Problems solved by technology

It aims to improve defects such as shrinkage, swelling, perishability, etc. under the premise of ensuring mechanical properties by impregnating thermosetting resin, but it will bring corresponding problems such as formaldehyde pollution