PVC board is a thicker sheet. In fact, PVC itself is not poisonous! However, due to the toxicity of chemical reagents added in the production process, such as plasticizers, anti-aging agents and other important auxiliary materials, usually the plasticizers added to PVC are mainly phthalic acid, phthalic acid, etc. Chemical reagents almost have certain hazards. The anti-aging agent lead stearate salt of PVC products will cause chemical changes and lead to lead if it encounters ethanol and other organic solvents, so it is also harmful. If PVC containing lead salt is used when food bags meet oily food, the molecular structure of lead will spread into the oil, so PVD packaging bags cannot contain food, especially food with oil. In addition, under the corresponding high temperature of PVC plastic products, the gas that is harmful to the body will slowly dissolve at about 50 degrees: hydrogen chloride, so PVC products cannot be used as food packaging bags.
However, many current PVC products are essentially free of phthalic acid, phthalic acid, and the like. They are often used for packing boxes, daily life, decoration, table mats, door curtains and wooden floors. If the ambient temperature is less than 50 ℃, it is not easy to generate harmful gases, and PVC also has some characteristics: flame retardant, which also promotes its wider application!
