Method for preparing preservative-treated wood by using environmental protection low molecular weight organic pharmaceutical agent

Abstract

The invention provides a method for preparing a preservative-treated wood by using an environmental protection low molecular weight organic pharmaceutical agent, and relates to a preservative-treated wood preparation method. In the prior art, the existing wood preservative has characteristics of harm on environment and easy loss, the wood treated by separately adopting furfuryl alcohol with a characteristic of no environment pollution or a nitrogen hydroxymethyl resin with a characteristic of no environment pollution as a treatment pharmaceutical liquid can not concurrently have characteristics of excellent loss rate resistance and excellent preservation effect, and the treatment pharmaceutical liquid prepared by simply compounding the furfuryl alcohol and the nitrogen hydroxymethyl resin has problems of poor synergy between the furfuryl alcohol and the nitrogen hydroxymethyl resin, instability and treated wood shrinkage deformation. A purpose of the present invention is to solve the problems in the prior art. The method comprises: 1, carrying out an air dry treatment on wood; 2, preparing a treatment pharmaceutical liquid; 3, carrying out a vacuum pressurization impregnation treatment on the wood; and 4, drying to obtain the high size stability preservative-treated wood prepared by using the environmental protection low molecular weight organic pharmaceutical agent. The present invention relates to the method for preparing the preservative-treated wood by using the environmental protection low molecular weight organic pharmaceutical agent.

Description

technical field [0001] The invention relates to a method for preparing anticorrosive wood. Background technique [0002] Wood is a kind of biomass porous material, which is easily decayed by microorganisms and insects. In particular, using wood products outdoors requires higher requirements for wood preservative properties. Preserving wood through physical or chemical methods is an effective way to improve wood preservative properties. Wood preservatives mainly include oil preservatives (such as creosote and scallion oil), oil-borne preservatives (such as pentachlor phenols, naphthenic acid ketones, etc.) and waterborne preservatives (chromium arsenic acid ketones, inorganic metals and inorganic Pengs). Water-borne preservatives are the most widely used at present, but the existing technical problems are poor anti-loss resistance of preservatives and uneven distribution of preservatives in wood. Creosote is a traditional oil preservative, but in addition to its toxicity, ...

AI Technical Summary

Problems solved by technology

[0008] The present invention solves the problem that the existing wood preservative method has a chemical solution that is harmful to the environment and is easy to be lost, but using only furfuryl alcohol and nitrogen hydroxymethyl resin, which do not pollute the environment, as the treatment solution, the treated wood cannot have an excellent anti-loss rate at the same time. and anti-corrosion effect. If furfuryl alcohol and nitrogen hydroxymethyl resin are simply compounded to prepare the treatment solution, there will be problems such as poor synergy between furfuryl alcohol and nitrogen hydroxymethyl resin, instability of the solution and easy deformation of the treated wood. , so as to provide a method for treating wood with environmentally friendly low-molecular organic agents and preparing preservative wood