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Wood preservative and preparation method and application thereof

A wood preservative and metal salt technology, applied in wood impregnation, wood treatment, impregnated wood, etc., can solve the problems of low permeability and anti-loss, inconvenient use, high cost, and achieve quick effect, convenient use and low price. Effect

Active Publication Date: 2021-08-06
BINZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of low permeability and anti-loss performance, slow effect, high cost and inconvenient use in the prior art, the present invention provides a wood preservative, which has the characteristics of broad spectrum, long-term effect and quick effect, and is convenient to use and low in price. Inexpensive; the present invention also provides a preparation method, the process is simple, and it is easy for industrialized production

Method used

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  • Wood preservative and preparation method and application thereof
  • Wood preservative and preparation method and application thereof
  • Wood preservative and preparation method and application thereof

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experiment example

[0040] 1. Preliminary preparation

[0041] 1. By consulting a large number of relevant literature, understand the current situation and application prospects of wood preservatives, and find out the microbial populations that may exist on wood (mainly poplar and pine). The main microbial populations are Penicillium, Aspergillus niger, and Aspergillus and brown rot fungi. According to reports, sort out and find substances that may inhibit certain bacteria, such as zinc, copper, boron, etc., because zinc has obvious inhibitory effect on microorganisms, can prevent the synthesis of mold, thereby affecting the normal growth of organisms, and inhibiting the reproduction of microorganisms the goal of;

[0042] 2. Summarize and summarize the data through extensive literature review, research and discussion, and preliminarily determine the composition of traditional preservatives:

[0043] (1) Mass fraction 0.05%~0.50% 8-hydroxyquinoline copper (Cu-8) (100% powder), 5.00%~20.00% glac...

Embodiment 1

[0058] The wood preservative consists of component A and component B, wherein component A includes 7.5 parts of zinc carbonate, 30 parts of ammonia, 7.5 parts of oxalic acid, 1 part of hydrogen peroxide, 1 part of formaldehyde and 1 part of phenol, and the pH is adjusted to 11; B The component is sodium hypochlorite; it is obtained by mixing component A and component B at a volume ratio of 1:8.

[0059] Concrete preparation steps are as follows:

[0060] (1) Heat oxalic acid to 80°C to dissolve, add zinc carbonate after cooling to 30°C, wait for CO 2 The reaction is complete;

[0061] (2) Add ammonia water, hydrogen peroxide, formaldehyde and phenol, adjust pH=11, and wait until clarification after stirring;

[0062] (3) Add sodium hypochlorite according to the above ratio, and wait for the solution to become clear and transparent.

Embodiment 2

[0064] The wood preservative consists of component A and component B, wherein component A includes 7.5 parts of zinc chloride, 30 parts of ammonia water, 7.5 parts of oxalic acid, 1 part of hydrogen peroxide, 1 part of formaldehyde, and 1 part of phenol, and the pH is adjusted to 10; Component B is sodium hypochlorite; it is obtained by mixing component A and component B at a volume ratio of 1:2.

[0065] Concrete preparation steps are as follows:

[0066] (1) Heat oxalic acid to 60°C to dissolve, add zinc chloride after cooling to 25°C, wait until CO 2 The reaction is complete;

[0067] (2) Add ammonia water, hydrogen peroxide, formaldehyde and phenol, adjust pH=10, and wait until clarification after stirring;

[0068] (3) Add sodium hypochlorite in proportion, and wait for the solution to become clear and transparent.

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Abstract

The invention relates to a preservative, in particular to a wood preservative and its preparation method and application. It is composed of A component and B component, wherein A component includes metal salt, ammonia water, hydrogen peroxide, phenol, formaldehyde and oxalic acid; B component is sodium hypochlorite; the volume ratio of A component and B component is 1:2‑1 :10 mixed. The wood preservative has the characteristics of broad-spectrum, long-acting, and quick-acting. Spray the agent on the pine wood of 9cm*9cm*9cm. After 15 minutes, it can be observed that the bacteria on the pine wood have all disappeared. The price is low and has broad application potential. development prospects.

Description

technical field [0001] The invention relates to a preservative, in particular to a wood preservative and its preparation method and application. Background technique [0002] At present, my country's wood resources are scarce, and the consumption of wood in various industries continues to grow. The demand for wood shows an expansionary development trend. However, wood is easily eroded by wood-rot fungi during use, resulting in waste of wood and the use of wood. performance degradation. Therefore, it is often necessary to preservatively treat wood before use. There are three main types of wood preservatives on the market: oil-based, oil-borne and water-borne. Water-borne wood preservatives are low in cost, It is not easy to burn and is currently widely used. The first generation of water-borne wood preservatives is represented by CAA (a water-soluble wood preservative composed of three inorganic oxides of copper, chromium, and arsenic or inorganic salts), and the second gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/20B27K3/22B27K3/36B27K3/38B27K3/52
CPCB27K3/20B27K3/22B27K3/36B27K3/38B27K3/52B27K2240/20
Inventor 杨茜李甲亮刑岩魏佳楠郭思钰王明霞
Owner BINZHOU UNIV
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