Paint is poisonous? Do the painter good or bad
TDI (toluene diisocyanate): TDI has a low vapor pressure, the human body cornea has a strong stimulating effect, causing eye swelling. TDI steam after inhalation by the human body, will damage the human liver, kidney function, long-term exposure to high concentrations of TDI vapor can cause cancer. In the polyurethane (PU) class paint, only free TDI less than 0.5 ‰, only the human body will not cause toxic effects. Because at low concentrations, free TDI is not easy to escape from the system, not the body to produce toxic TDI vapor. In the current national standard, the free TDI provisions for the paint after the deployment of less than 0.7%, then the curing agent component alone is still in the highly toxic level, because the domestic TDI polymerization industry level, the current gap with the developed countries Very large, so from the perspective of the protection of national industry, the country developed a wide range of standards.
Glycol ethers and glycol ethers are metabolized in the body to form highly toxic compounds that cause permanent damage to the human blood circulation system and the nervous system. Long-term exposure to high concentrations of glycol ethers Solvent can cause cancer. In addition, glycol ethers can cause permanent damage to the female reproductive system, resulting in female infertility.
Benzene: a highly toxic solvent, a small amount of inhalation will cause long-term damage to the human body. Benzene in the nervous system and bone marrow accumulation, the nervous system and hematopoietic tissue damage, causing blood leukocytes, platelet count decreased, long-term exposure can cause leukemia.
Toluene, xylene: In the solvent classification is a moderate toxic solvent, the human body has anesthesia, stimulation, high concentrations of toxic effects on the nervous system, but in the human body is low, generally can be excreted by metabolism. The maximum allowable concentration in air is 100mg / m. Long-term exposure to toluene, xylene people should not drink liquor, not to drink too high a high degree of liquor, because alcohol will extend its retention time in the body, the health is extremely unfavorable. Workplace should keep air flowing to reduce its concentration in the air According to the latest research data show that toluene, xylene into the atmosphere will produce a certain photochemical reaction, the ozone layer has a certain destructive effect.
Of course, unless you do a good job of protective measures Paint on the human body is inevitable, but do not mind too, the same painters. To say what harm, the biggest harm is to kill red blood cells caused by stupid poisoning, and inhalation of dust caused by pneumoconiosis. The general hazard directly to the skin. Often cause dry, itch, from the red pox. There is no effective way to prevent and cure the paint, the best way is to strengthen the nutritional supplement. Pay attention to protection
