Compound preservative for wood or wood products and preparation method and processing method thereof

Abstract

The invention discloses a compound preservative for wood materials, which is prepared by the following raw materials by weight percent: 60-90% of nano-carrier, 5-25% of boron type compound and 5-15% of quaternary ammonium salt; the preparation method comprises the following steps: preparing the nano-sol carrier, preparing water solution of the boron type compound and the quaternary ammonium salt and preparing a finished product; when in use, wood or a wood product is placed in a treatment tank for vacuum pumping, the compound preservative is injected at normal temperature, then the vacuum pumping is further performed on the treatment tank, the vacuum is finally removed, and the treatment is performed once to three times for getting the antiseptic wood or the wood product. The preparation method of the preservative for the wood materials is simple, and the operation is easy; furthermore, the preservative is harmless to people and animals, does not pollute the environment during the production process and the using process, is strong in fixation and anti-loss performance, does not affect the appearance, the mechanical properties and the processing performance of the wood material to be processed, and can be used for antiseptic and anti-insect protection of the wood and building wood structures for indoor and outdoor decoration.

Description

technical field [0001] The invention relates to a nano-carrier composite capable of preservative wood materials, and also relates to a preparation method of the composite preservative and a method for treating wood and wood products with the preservative. Background technique [0002] Timber is one of the important raw materials for national construction and people's daily necessities. It is widely used in the manufacture of construction, decoration materials and furniture. Since wood is a natural organic material with obvious biological characteristics, it is easy to be attacked and decayed by bacteria, insects and other organisms, which limits its application. Wood preservative technology can improve the service life and use efficiency of wood, and is one of the most effective ways to save wood resources. However, the anti-mildew and anti-corrosion of wood has always been a difficult problem in the process of wood processing, and many scholars have studied the theory and ...

AI Technical Summary

Problems solved by technology

Water-borne wood preservatives use water as a solvent, low cost, clean treatment, no pungent smell, and no increase in flammability, but they are easy to lose during the use of preservative wood, and have poor fixation and loss resistance. Resources are polluted; and copper salt series anti-mildew preservatives are colored, which affects the appearance of wood, so they are more and more restricted in application

In addition, after the existing water-borne preservatives treat wood, the dimensional stability of the wood is reduced because the hygroscopicity of the agent itself is stronger than that of untreated wood.