Processing technology for improving anti-corrosion protection effect of carbonization layer on surface of wooden craft

Abstract

The invention discloses a processing technology for improving the anti-corrosion protection effect of a carbonization layer on the surface of a wooden craft, and relates to the technical field of wooden product processing, and the specific technology is as follows: 1) performing surface carbonization treatment on the wooden craft; 2) preparing composite carbon fibers from molybdenum oxide powder,pre-oxidized polyacrylonitrile fibers and sulfur powder; 3) performing modification treatment on the composite carbon fibers; and (4) carrying out dipping treatment on the surface carbonized wood craft by utilizing the modified composite carbon fiber dispersion liquid by adopting a vacuum pressure dipping process. According to the invention, the modified composite carbon fibers permeate into the surface carbonization layer of the wooden craft, a wood fiber pipe wall is used as a loading matrix, intercalation layers among nanosheets on the surfaces of the modified composite carbon fibers are connected in series, and a continuous carbon fiber network structure is formed in the carbonization layer, so that the toughness of the carbonization layer is improved, the carbonization layer is not liable to break, and the protection effect of the carbonization layer on the wooden craft is improved.

Description

technical field [0001] The invention belongs to the technical field of wood product processing, and in particular relates to a processing technology for improving the anticorrosion protection effect of a carbonized layer on the surface of wooden handicrafts. Background technique [0002] Wood is mainly composed of cellulose and hemicellulose. Cellulose acts as a skeleton in the wood cell wall, and its chemical properties and supramolecular structure have an important impact on the strength of wood. The hydroxyl groups in cellulose and water molecules can also form hydrogen bonds, and the hydrogen bonds between the hydroxyl groups in different parts directly affect the moisture absorption and desorption process of wood. A large number of hydrogen bonds can improve the strength of wood, reduce hygroscopicity, reduce chemical reactivity, etc., and the hygroscopicity of cellulose directly affects the dimensional stability and strength of the limit. After the wood is carbonized,...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN2017104432900 discloses a method of carbonization for wood preservation, which specifically discloses that the cellulose, hemicellulose and lignin in the wood can be fully carbonized by setting the first-level carbonization, the second-level carbonization and the third-level carbonization, The carbonization is more sufficient and the carbonization effect is better, so that the wood has excellent anti-corrosion properties; however, by carbonizing the wood, the water molecules existing in the wood fibers are also deprived, making the wood a "dead wood" state, changing its quality and strength characteristics, losing its original toughness, becoming very fragile and easy to break, resulting in a reduction in the anti-corrosion protection effect of the surface carbonized layer