Method for preparing hydrophobic light-aging-resistant composite wood loaded with titanium dioxide

Abstract

The invention discloses a method for preparing hydrophobic light-aging-resistant composite wood loaded with titanium dioxide. The method is characterized by comprising the following steps: ultrasonically cleaning a wood sample, and then drying the cleaned wood sample to reach the constant weight; dropwise adding absolute ethyl alcohol into tetra-n-butyl titanate for uniform stirring and mixing, dropwise adding a sodium dodecyl sulfate aqueous solution, adjusting the pH value, continuing to stir till titanium dioxide sol is obtained, and equally diving the titanium dioxide sol into two parts; putting the pretreated wood sample into a hydrothermal reaction kettle, adding one part of the titanium dioxide sol, enclosing the hydrothermal reaction kettle, putting the enclosed hydrothermal reaction kettle into an oven, raising the temperature, keeping the constant temperature, cooling to the room temperature, taking out the treated wood ample for ultrasonic cleaning, and drying in the vacuumstate so as to obtain a titanium dioxide / wood composite material; and adding ethanol into the other part of the titanium dioxide sol to prepare a titanium dioxide ethanol solution, putting the composite material into the titanium dioxide ethanol solution for sufficient immersion, drying the immersed composite material, immersing the dried composite material into a low-surface-energy solution for treatment, and then drying so as to obtain the composite wood.

Description

technical field [0001] The invention relates to the field of wood modification, in particular to a method for preparing a titanium dioxide-loaded hydrophobic and light-resistant composite wood. Background technique [0002] Timber is a kind of natural resource. Antiseptic treatment of wood can prolong the service life of wood, which is of great significance to save wood and protect forest resources. The plywood made of wood is easily attacked by insects and bacteria, which limits the use of plywood. The plywood treated with anti-corrosion can effectively solve the above problems, achieve anti-corrosion, insect-proof, and mildew-proof effects, and prolong the service life of the plywood. Traditional wood preservative treatment methods have many disadvantages, and a green, safe and pollution-free wood preservative technology should be studied. Wood is prone to moisture and mildew in a humid environment, and it is easy to burn when exposed to an open flame. This not only reduc...

AI Technical Summary

Problems solved by technology

Traditional wood preservative treatment methods have many disadvantages, and a green, safe and pollution-free wood preservative technology should be studied

Wood is prone to moisture and mildew in a humid environment, and it is easy to burn when exposed to an open flame. This not only reduces the utilization rate of wood, but also hinders the application of wood in production and life.