A kind of method that utilizes environment-friendly low-molecular organic agent to prepare preservative wood

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 prone to decay by microorganisms and insects. In particular, the use of wood products outdoors has higher requirements for wood corrosion resistance. Preservative treatment of wood through physical or chemical methods is an effective way to improve the preservative performance of wood. Wood preservatives mainly include oil preservatives (such as creosote and scallion oil) and oil-borne preservatives (such as pentachloro Phenol, naphthenate, etc.) and water-borne preservatives (chromium arsenate, inorganic metals and inorganic peng) three categories. At present, the most widely used water-borne preservatives, but the technical problems that exist are the poor resistance to loss of preservatives and the uneven distribution of preservatives in wood. Creosote is a traditional oil-based preservative, but creosot...

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