Preparation method of bamboo wood anti-mold and preservative

Abstract

The invention discloses a preparation method of a bamboo wood anti-mildew preservative: weighing 60-150 parts by weight of tetraethyl orthosilicate, sodium silicate solution or n-butyl titanate at room temperature, slowly dripping into 40-75 parts by weight Parts of absolute ethanol and 30-60 parts by weight of deionized water in the mixed solution, while the mixed solution is subjected to 40-80 ° C water bath, stirring; then add an appropriate amount of acid to adjust the pH to 3-4, after the reaction is carried out for 30-45min, that is A homogeneous sol is obtained; under the conditions of 40-80°C water bath and stirring of the sol, slowly add 3-12 parts by weight of an aqueous solution of a copper-containing compound into the sol, and then add 5-15 parts by weight of an aminosilane coupling agent as a guide The agent is fully stirred to make it react, and the bamboo wood anti-mildew preservative is prepared. The anti-mildew preservative for bamboo and wood prepared by the invention has excellent anti-loss performance, simple components, simple preparation method, relatively low production cost, friendly environment and little harm to human health.

Description

technical field [0001] The invention belongs to the field of preservatives, and in particular relates to a preparation method of a bamboo and wood anti-mildew preservative. Background technique [0002] There are many kinds of anti-mildew preservatives for bamboo and wood, and copper anti-mold preservatives are the most widely used one. Copper anti-mildew preservatives have been widely used for a century due to their broad-spectrum bactericidal properties, low harm to humans and animals, and environmental friendliness. As we all know, in addition to micronized copper and other nano anti-mold preservatives, copper anti-mold preservatives are a typical type of water-soluble anti-mold preservatives, and their fatal flaw is poor anti-loss performance. [0003] How to improve the loss resistance of copper-containing bamboo wood antifungal preservatives has become a research hotspot and difficulty. Studies have shown that in copper chromium arsenic preservatives (CCA), chromium ...

AI Technical Summary

Problems solved by technology

However, these methods have the disadvantages that the anti-mildew and anti-corrosion effects are not durable, and the physical and mechanical properties of the treated materials are affected.

Some studies have attempted to combine copper with boron compounds and octanoic acid to improve the fixation performance of copper in the treated material. The addition of synergistic additives has reduced the loss of copper anti-mold and preservatives in the treated material, but the effect of improving the fixation of copper is not obvious

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