How to know whether the preservative wood purchased is environmentally friendly? The so-called outsider watching the fun, as an outsider, consumers can only prove through the inspection certificate.
Preservative wood is a kind of common wood which is artificially added with chemical preservatives, which makes it have the characteristics of anti-corrosion, moisture-proof, fungi, insects, ants, mildew and water-proof.
The use of wood preservatives should aim at the right object, treat at the right time, select the effective preservative products, use the appropriate concentration, adopt the appropriate treatment methods, so that the wood can reach the correct pesticide retention, and the use environment of preservative treatment of wood products is correct.
At present, there are two kinds of antiseptic treatment technology in antiseptic wood processing. One is CCA antiseptic treatment, CCA. Its main chemical component is chromized copper arsenate. Because CCA contains trace arsenic element and heavy metal chromium, people have been worried about its harm to health in recent years. The United States and European Union have stopped using CCA at the beginning of this century; For the treated wood, CCA preservative is still dominant in China.
ACQ is the abbreviation of quaternary ammonium copper. It is mainly composed of copper oxide and quaternary ammonium salt. It does not contain arsenic and chromium. It is an environmental friendly wood preservative with low toxicity to human and livestock. This new type of environmental protection preservative will not cause harm to human, livestock, fish and plants, but also has good anti-corrosion performance. This treatment is considered to be an effective alternative to CCA. With the continuous improvement of related technologies, ACQ will probably become one of the main methods of preservative wood treatment in the long run.