Preparation method of mould proof heat treatment wood and application thereof

Abstract

The invention discloses a preparation method of mould proof heat treatment wood and an application thereof. According to the preparation method of mould proof heat treatment wood, copper containing compound impregnation solution manufactured by copper hydroxide, diethanol amine, polyethylene glycol 200 and water to carry out vacuum compression treatment to masson pine wood, traditional wood heat treatment method is combined, and nano-copper is obtained in wood in situ, and the preparation method of mould proof heat treatment wood is economical. The preparation method can avoid human body to directly contact with nanometer materials, and the harm to the human body caused by breathing in is avoided. The copper containing compound impregnation solution is heat-treated over 3h at high temperature of being 220 DEG C, and copper with a particle size being 100nm is produced in wood in situ. The nano copper particle is adsorbed on the surface of a mold cell wall due to charge interaction between cell walls and Cu<2+> is dissolved, the reduction reaction of the mold cell wall is caused, and the purpose of inhibiting mold is achieved. The heat-treated masson pine wood soaked by the copper containing compound impregnation solution can reach more than 90% of the mould proof and preventing efficiency, and therefore better mould proof and preventing efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of wood protection, in particular to a preparation method and application of mildew-resistant heat-treated wood. Background technique [0002] Heat-treated wood refers to the material obtained by modification treatment in an oxygen-deficient manner within the range of 160°C to 260°C. It is a new type of environmentally friendly material and is widely used in wall panel decoration and other occasions. Heat-treated wood can be roughly divided into three methods: nitrogen, water vapor and oil according to different treatment media. Heat treatment improves the visual performance of wood, improves the dimensional stability and corrosion resistance of wood, but heat-treated wood is more prone to mildew than untreated materials , Preventing mildew can improve the quality and commodity value of materials. [0003] Many experts have conducted research on the mildew resistance of heat-treated wood. Gu Lianbai heat-t...

AI Technical Summary

Problems solved by technology

O. Theander found that heat treatment caused oligosaccharides and carbohydrates in pine wood and spruce wood to accumulate and correlate with the nitrogen content on the wood surface, causing wood yellowing, although Penicillium brevicompactum Growth is closely related to nitrogen content and low-molecular-weight polysaccharide content, but chemical reactions triggered by heat treatment can also produce antibacterial components, such as inhibiting the growth of Aspergillus spp.

However, none of these studies have well addressed the problem of mildew in heat-treated wood

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