Wood is the artificial addition of chemical preservatives to ordinary wood, which has the characteristics of anti-corrosion, moisture-proof, fungus-proof, insect-proof, ant-proof, mildew-proof and waterproof. It has direct contact with soil and moist environments. So are preservative wood products and engineering harmful to the human body? Is wood toxic?
The use of wood preservatives should be treated at the appropriate time (before decay) according to the appropriate object (wood or wood-based panels or engineered wood), effective preservative products should be selected, and appropriate concentrations and treatment methods should be used to achieve the correct wood. Dosage, preservation of wood products are used in the correct environment (correct application).
At present, there are two main anti-corrosion treatment technologies for wood processing. One is CCA anti-corrosion treatment. The main chemical constituent of CCA is chromic copper arsenate. In recent years, concerns have arisen about the psychological harm of CCA to health due to its trace amounts of arsenic and the heavy metal chromium. In the early 2000s, the United States and the European Union stopped using CCA; treated wood (except for industrial and special environments) still holds an important place in China.
ACQ is the abbreviation of quaternary ammonium copper, which is mainly composed of copper oxide and quaternary ammonium salt. It is free of arsenic and chromium and is a low toxicity and environmentally friendly wood preservative. No adverse effects on the environment. This new type of environmentally friendly preservative will not harm humans, animals, fish and plants, and has good preservative properties. This treatment method is considered an effective alternative to CCA. With the continuous advancement of related technologies, ACQ will become one of the main methods of wood treatment in the future. Finnish wood is processed with ACQ preservatives. It can be said that the preservative wood products treated with ACQ preservatives are safe and environmentally friendly products.