Preparation method of intelligent temperature-responsive superhydrophobic-hydrophilic wood

Abstract

The invention relates to a preparation method of super-hydrophobic-hydrophilic wood with intelligent temperature response and belongs to the field of super-hydrophobic wood. The super-hydrophobic wood prepared by the method has the hydrophilic reversible characteristic which is not owned by the previous super-hydrophilic wood. A contact angle between the super-hydrophobic wood and water is greater than 150 degrees; a rolling angle is smaller than 10 degrees; the super-hydrophobic-hydrophilic wood is excellent in super-hydrophobic performance and good in self-cleaning performance. The preparation method of the super-hydrophobic-hydrophilic wood with the intelligent temperature response comprises the following steps: soaking the wood in a silicon dioxide aqueous solution, drying, then uniformly and dropwise coating the surface of the wood with polycaprolactone dissolved in a mixed solution of methyl alcohol and chloroform, and finally drying in vacuum. The wood shows the intelligent temperature response in the cross section. The method is simple in process, low in cost, short in period, low in energy consumption and free of special complicated equipment; the prepared super-hydrophobic-hydrophilic wood with the intelligent temperature response is capable of converting the wettability for hundreds of times under high and low temperatures; the prepared super-hydrophobic-hydrophilic wood has a great application prospect in the future.

Description

technical field [0001] The invention belongs to the technical field of wood; in particular, it relates to a preparation method of intelligent temperature-responsive superhydrophobic-hydrophilic wood. Background technique [0002] Wood is a traditional material that plays an extremely important role in production and life. For example, in the construction industry, wood, as an excellent natural material, has an indispensable position in ancient Chinese palace buildings; in the furniture industry, wood, as a non-toxic and harmless material with natural texture, often appears in some high-end furniture supplies. However, due to the obvious hygroscopic phenomenon of traditional wood, if it is placed in an environment with high humidity for a long time, mildew and corrosion will occur. At the same time, its dimensional stability cannot be guaranteed, which greatly reduces the durability of wood. service life. Therefore, the research on wood with superhydrophobic properties is ...

AI Technical Summary

Problems solved by technology

The existing superhydrophobic wood preparation method is generally to add inorganic particles to the wood, followed by beeswax treatment, etc. The prepared superhydrophobic wood only has a single superhydrophobic property, which cannot meet the needs of daily life. Therefore, how to improve the superhydrophobic wood? The intelligent responsiveness of hydrophobic wood has become a research hotspot for current researchers

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