Application and preparation method of green lasting anticorrosion and mildew proof phenolic resin on reconstituted bamboo

Abstract

The invention relates to application of environmental-friendly, durable, corrosion-resistant and mildew-proof phenolic resin on recombination bamboo timber and a preparation method. Resol condensed by phenol and formaldehyde is a water-soluble preparation with low molecule and low viscosity and has good penetrability to bamboo wood. The resol is impregnated with the bamboo wood and subjected to heat treatment, a macromolecular compound which is insoluble in water can be produced, the macromolecular compound is tasteless and non-toxic, and does not ooze and volatilize, and has durable corrosion-resistant performance. Whether used indoors and outdoors or embedded in soil, the bamboo wood treated by the corrosion-resistant agent is not corroded by fungus, no corrosion-resistant agent is reversely oozed from the bamboo wood, and the corrosion-resistant performance of the corrosion-resistant agent is better than that of bamboo wood treated by a common corrosion-resistant agent. The resin material has the characteristics that mildew does not occur, corrosion resistance is achieved, and expansion does not occur when the resin material meets water.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an insoluble and infusible adhesive that uses phenolic resin as an adhesive to remove nutrients on which molds in bamboo fibers depend for survival. Background technique [0002] Bamboo is rich in nutrients. About 40% of bamboo parenchyma cells are rich in starch. However, starch is the food of borers and cyanobacteria, which makes bamboo easy to rot, which makes bamboo anti-corrosion particularly important. In addition to a large amount of starch, bamboo also contains a lot of other nutrients, including 1.5% to 6.0% of protein, about 2% of soluble sugar, and 2.18% to 3.55% of fat and wax. These substances also make bamboo Bamboo and bamboo products are easily invaded and destroyed by bacteria, fungi and insects when they are preserved and used; mildew and decay of bamboo are mainly caused by fungi except for bacteria; according to the biochemical process of fungi o...

AI Technical Summary

Problems solved by technology

[0004] At present, most phenolic resins cannot meet the requirements of anti-corrosion and anti-mildew. As a compromise method, deep carbonized bamboo has to be used, but in any case, it is impossible to completely remove the nutrients that various types of mold rely on for survival; Helpless, we can only keep a considerable amount of free components; in this way, a large amount of VOC will be volatilized when the impregnated bamboo threads and bamboo bundles are dried, so the processing process has brought serious air pollution