A kind of resin type silicate wood modifier and preparation method of modified material thereof

Abstract

The invention belongs to a resin type silicate wood modifier and a preparation method of a modified material of the modifier. According to the preparation method, the resin type silicate wood modifier is prepared by taking melamine, formaldehyde, urea and soluble sodium silicate as main raw materials as well as respectively taking polyvinyl alcohol and diethylene glycol as a toughening agent and a stabilizer; the resin type silicate wood modifier can be stably stored for a long time and can be repeatedly recycled. The modifier has the advantages that the dimensional stability, the density, the surface hardness, the anti-bending strength, the anti-bending elastic modulus, the impact toughness and the wear resistance of artificial forest wood processed by virtue of the modifier are substantially improved, the modifier has the advantages that the flame retardance and environment-friendly effect are achieved, no pollution is caused to a human body and the environment, the leachability resistance of the modifier in the processed wood is improved, and the application value of the artificial forest wood is improved.

Description

technical field

[0001] The invention belongs to a resin type silicate wood modifier and a preparation method of the modified material. Background technique

[0002] Over the years, the area of ​​my country's plantation forest resources has been ranking first in the world. However, due to the short growth cycle and large variability of plantation wood, it is often soft, low-density, and low-strength (such as poplar, fir, etc.), its application range is greatly limited, and the added value of the product is low. Impregnation treatment of wood with water-soluble low molecular weight melamine-formaldehyde resin solution can greatly improve its physical and mechanical properties such as density, dimensional stability, flexural strength and elastic modulus, and is an effective wood modification method. However, this resin modifier also has defects or problems such as poor stability, difficulty in long-term storage, reduced wood toughness, relatively single function, and high cost...