Preservative manufacturers share four properties of preservatives
The properties of preservatives include persistence, economy, safety and effectiveness. The specific analysis is as follows]
1. [Persistence]
On request, the preservatives remain in the wood for many years. There are many factors that affect the persistence of preservatives, however, two important factors are the physical and chemical properties of the preservative, and the way it is retained in the wood.
If the preservative can be chemically decomposed or volatilized at room temperature, its antiseptic effect will not last. If the treated wood is used in a humid place, the active ingredients of the preservative will not be dissolved and lost by rainwater.
The loss resistance of preservatives comes from their own water insolubility, such as creosote, oil-borne preservatives, etc., or after entering the wood, water-insoluble substances such as CCA and ACQ are formed in the wood. In addition, some active ingredients of wood preservatives will be decomposed by some organisms, which will also affect the persistence of preservatives.
2. [Economy]
Price is an important factor that must not be forgotten, which is very important for producers of preservatives, owners of processing plants, and marketers and users of processed wood.
If the raw material of a preservative is cheaper and the preparation and manufacturing process is simpler and easier, then the cost of this preservative will be lower and the more competitive it will be in the market.
3. [Security]
Preservatives and their treated wood are poisoned to humans and animals, and the possibility of environmental pollution and fire is small. The safety of preservatives is not only related to the preservatives themselves, but also to the rational and scientific use.
In addition, the preservative solution should not have a corrosive effect on metal or plastic containers and equipment, because corrosion can cause leakage and cause pollution to the environment.
The handling, processing and other treatments of the treated wood should also be safe, and should not emit toxic gases when burning, and will not increase the risk of fire.
4. [Effectiveness]
Preservatives can effectively prevent the damage of wood-destroying organisms to wood, and its effect can be measured through laboratory, field and in-use tests.
However, effective wood preservatives can only be effective when they are deeply and evenly distributed into the wood, so the penetration of preservatives is very important. The penetration of preservatives is closely related to the formulation and quality of preservatives, and preservatives strictly control the quality of processing solutions and products.
