阅读说明：本技术 一种竹材防霉防腐方法 (Mildew-proof and corrosion-proof method for bamboo wood ) 是由 潘炘 庄晓伟 蒋应梯 于海霞 张文福 王进 于 2019-11-04 设计创作，主要内容包括：本发明提供了一种竹材防霉防腐方法,属于防霉防腐领域。本发明具有以下优点和效果：(1)与过热水蒸气处理竹材相比,本发明在密闭容器中使水变为亚临界水,亚临界水可以提取竹材中淀粉、糖类、蛋白质,且提取效率高于传统的水和乙醇,进而可以大大降低竹材中淀粉、糖类、蛋白质等含量,提高竹材的防霉防腐。(2)与超临界二氧化碳处理工艺相比较,反应条件更为温和。(3)处理原料为水,处理工艺简单,生产成本低。(4)本发明的效果稳定,处理后竹材无化学药剂残留,对人体无毒无害。(The invention provides a mildew-proof and corrosion-proof method for bamboo wood, and belongs to the field of mildew-proof and corrosion-proof. The invention has the following advantages and effects: (1) compared with the superheated steam treatment of the bamboo wood, the method changes water into subcritical water in the closed container, the subcritical water can extract starch, saccharides and proteins in the bamboo wood, the extraction efficiency is higher than that of the traditional water and ethanol, the contents of the starch, the saccharides and the proteins in the bamboo wood can be greatly reduced, and the mildew and corrosion resistance of the bamboo wood is improved. (2) Compared with the supercritical carbon dioxide treatment process, the reaction condition is milder. (3) The raw material for treatment is water, the treatment process is simple, and the production cost is low. (4) The invention has stable effect, and the treated bamboo has no chemical agent residue and is nontoxic and harmless to human body.)

1. The method for preventing mildew and corrosion of bamboo wood is characterized by comprising the following steps:

mixing bamboo wood with water, performing heat treatment in a closed container, and then drying, wherein the temperature of the heat treatment is 170-240 ℃.

2. The bamboo mildew-proof and corrosion-proof method according to claim 1, wherein the using amount ratio of the bamboo to the water is 1kg: 10-20L.

3. The bamboo wood mildew-proof and corrosion-proof method as claimed in claim 1, wherein the temperature of the heat treatment is 180-220 ℃.

4. The bamboo mildew-proof and corrosion-proof method according to claim 1 or 3, wherein the heat treatment time is 30-120 min.

5. The bamboo material mildew and corrosion prevention method as claimed in claim 4, wherein the heat treatment time is 60 min.

6. The method for bamboo wood mildew and corrosion prevention according to claim 1, wherein the closed container is a pressure-resistant digestion reaction kettle.

7. The bamboo wood mildew-proof and corrosion-proof method according to claim 1, wherein the drying temperature is 50-85 ℃.

8. The method for preventing bamboo wood from mildew and corrosion according to claim 1 or 7, wherein the drying temperature is 65 ℃.

9. A method of bamboo mildew and corrosion protection according to claim 1, 7 or 8, characterized in that the drying is carried out in an oven.

Technical Field

The invention relates to the technical field of mildew prevention and corrosion prevention, in particular to a mildew prevention and corrosion prevention method for bamboo wood.

Background

China is a country with poor wood resources, so that bamboo wood as a good substitute for wood is more and more valued by people. The large-scale utilization of the bamboo wood effectively relieves the contradiction between supply and demand of the wood, and plays a positive role in economic development and ecological protection of China. However, in practical application of bamboo wood, the bamboo wood is found to be more susceptible to decay and mildew than wood, and the bamboo wood is a material which is difficult to treat, and a lot of research is carried out at home and abroad in order to improve the mildew-proof and corrosion-proof performance of the bamboo wood. However, most of the existing researches apply wood mildew-proof and corrosion-proof technologies, so that the application effect of the wood mildew-proof and corrosion-proof technologies on bamboo materials is not satisfactory. The existing methods generally have three categories, one category is a chemical method, and the method mainly adopts various antibacterial agents to carry out mildew-proof and corrosion-proof treatment on bamboo, but the problem of poor anti-leaching performance of the antibacterial agents exists generally, and the application of the chemical agents has a step of evaluating the safety of human bodies. The second kind is physical method, including radiation, steaming, solarization, smoking, etc., and has certain raised mildew and corrosion preventing performance. The third type is bamboo modification, mainly polymerization after various resins permeate into bamboo, the mildew-proof and corrosion-resistant performance of the processed bamboo is improved well, the modification steps are complex, and the cost is high.

Bamboo is easy to go mouldy and decay because it contains a lot of starch, sugar, protein, etc. Therefore, if the nutrient substances for saprophytic bacteria in the bamboo wood can be greatly reduced, the mildew-proof and corrosion-proof performance of the bamboo wood can be effectively improved. The prior art discloses that the wood is treated by using supercritical carbon dioxide, so that the mildew and corrosion resistance of the wood is greatly improved. However, the supercritical carbon dioxide treatment process conditions are harsh, and the carbon dioxide consumption is also large. Therefore, it is necessary to develop a physical method for effectively reducing the nutrient substances in the bamboo wood to improve the mildew resistance and corrosion resistance of the bamboo wood.

Disclosure of Invention

In view of the above, the invention aims to provide a bamboo mildew-proof and corrosion-proof method. The method for preventing mildew and corrosion of bamboo wood provided by the invention can greatly reduce the content of starch, sugar and protein in the bamboo wood, and has excellent mildew and corrosion prevention effect.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a mildew-proof and corrosion-proof method for bamboo wood, which comprises the following steps:

mixing bamboo wood with water, performing heat treatment in a closed container, and then drying, wherein the temperature of the heat treatment is 170-240 ℃.

Preferably, the using amount ratio of the bamboo wood to the water is 1kg: 10-20L.

Preferably, the temperature of the heat treatment is 180-220 ℃.

Preferably, the time of the heat treatment is 30-120 min.

Preferably, the time of the heat treatment is 60 min.

Preferably, the closed container is a pressure-resistant digestion reaction kettle.

Preferably, the drying temperature is 50-85 ℃.

Preferably, the temperature of the drying is 65 ℃.

Preferably, the drying is performed in an oven.

The invention provides a mildew-proof and corrosion-proof method for bamboo wood, which comprises the following steps: mixing bamboo wood with water, performing heat treatment in a closed container, and then drying, wherein the temperature of the heat treatment is 170-240 ℃. Compared with the prior art, the invention has the following advantages and effects: (1) compared with the bamboo processed by superheated steam, the bamboo processing method has similar disinfection effect, the invention changes water into subcritical water in the closed container, the subcritical water can extract starch, saccharide and protein in the bamboo, the extraction efficiency is higher than that of the traditional water and ethanol, the contents of the starch, saccharide, protein and the like in the bamboo can be greatly reduced, and the mildew and corrosion resistance of the bamboo is improved. (2) Compared with the supercritical carbon dioxide treatment process, the reaction condition is milder. (3) The raw material for treatment is water, the treatment process is simple, and the production cost is low. (4) The invention has stable effect, and the treated bamboo has no chemical agent residue and is nontoxic and harmless to human body. The data of the embodiment show that after the mildew-proof and corrosion-proof method provided by the invention is adopted to treat the bamboo, the control efficiency of the bamboo on the mildew and the discoloring bacteria reaches 100%, the mildew-proof and corrosion-proof effects are excellent, and the corrosion resistance is strong.

Detailed Description

The invention provides a mildew-proof and corrosion-proof method for bamboo wood, which comprises the following steps:

mixing bamboo wood with water, performing heat treatment in a closed container, and then drying, wherein the temperature of the heat treatment is 170-240 ℃.

In the invention, the using amount ratio of the bamboo wood to the water is preferably 1kg: 10-20L, and more preferably 1kg: 10-12L.

In the invention, the temperature of the heat treatment is preferably 180-220 ℃.

In the present invention, the heat treatment time is preferably 30 to 120min, and more preferably 60 min.

In the present invention, the closed vessel is preferably a pressure-resistant digestion reactor.

In the invention, the drying temperature is preferably 50-85 ℃, and more preferably 65 ℃. In the present invention, the drying time is not particularly limited, and the moisture can be completely removed.

In the present invention, the drying is preferably performed in an oven.

In order to further illustrate the present invention, the following describes the method for preventing mildew and corrosion of bamboo material provided by the present invention in detail with reference to examples, but they should not be construed as limiting the scope of the present invention.