Wood Protective - Protects against fungal decay and insect attacks What is the principle of wood preservation?

In nature, wood is a widely used building material, and its unique texture and good physical properties are deeply loved by people. However, the natural properties of wood also make it vulnerable to the threat of fungal decay and insect attacks, especially the attack of pests such as termites, which greatly reduces the service life of many wooden products. In order to meet this challenge, wood preservation technology came into being and became an important means to protect wood from damage.

The principle of wood preservation is to change the internal structure and external environment of wood through a series of physical, chemical or biological methods to enhance its resistance to fungal decay and insect attacks. The core of these methods is to destroy or inhibit the living conditions of fungi and pests that cause wood decay, so that it cannot colonize or reproduce on wood.

Chemical preservation is one of the main ways of wood preservation. It uses the toxicity or special properties of chemical agents to soak, spray or pressurize the wood, so that the agent can penetrate into the cell tissue of the wood. These chemical agents can destroy the physiological functions of fungi and insects, preventing them from growing and reproducing on wood. The copper ions in some copper-based preservatives can combine with lignin in wood to form stable compounds, thereby blocking the nutritional sources of fungi and insects; while some organic preservatives can destroy the nervous system of insects, causing their death.

Physical preservation achieves the purpose of preservation by changing the external environment of wood. By heating, drying or freezing, the moisture content in wood can be reduced, destroying the living conditions of fungi and insects. A protective film such as paint, coating or anti-corrosion paint can also be covered on the surface of wood to isolate moisture and oxygen in the external environment, thereby preventing the invasion of fungi and insects.

Biological preservation is an emerging technology that uses microorganisms or their metabolites to inhibit or kill fungi and pests in wood. Some bacteria can produce metabolites with antibacterial activity, which can destroy the cell wall or cell membrane of fungi, thereby killing fungi; while some fungi can combine with cellulose in wood to form a protective layer to prevent the invasion of other fungi and insects.

The principle of wood preservation is to change the internal structure and external environment of wood through physical, chemical or biological methods, thereby destroying or inhibiting the living conditions of fungi and insects. The implementation of these methods needs to be selected and optimized according to factors such as the type, purpose and use environment of wood to ensure the good anti-corrosion effect. Through the application of wood anti-corrosion technology, we can effectively extend the service life of wood and improve the durability and safety of wood products.