1, glycol ether and its ester solvent coatings have direct killing effect on human body. As long as people are exposed for a long time, blood and lymph will be seriously damaged, and the reproductive system will also be greatly damaged.
2, paint with ammonia-based paint, if you use this paint to brush doors and windows, passers-by can smell it, sometimes the smoked head will faint, eyes can't open, and the harm is obvious.
3. Some anticorrosive coatings sometimes need some extra functions, such as the coatings used on ships, because they need to kill algae, some toxic substances have to be added. For example, adding heavy metals will poison some close-range workers for a long time.
4, paint with solvent toluene, it will not be found in a short period of time, but long-term exposure will slowly accumulate toxins.
Extended data:
The development of coating industry has also brought indoor environmental pollution. Because indoor coatings contain volatile organic solvents, heavy metals such as volatile organic compounds, free formaldehyde, soluble lead, cadmium, chromium and mercury, and harmful substances such as benzene, toluene and xylene will be produced during construction and use, which will lead to the decline of indoor air quality and may affect human health.
Inhalation of organic matter emitted by paint through respiratory tract can cause dizziness, headache, nausea and other symptoms, which can irritate eyes and nose to some extent, and even cause asthma, unconsciousness, vomiting and bronchitis in severe cases.
Formaldehyde is very irritating to the skin, eyes and respiratory tract, causing allergic reactions. The International Center for Research on Cancer has listed it as a suspected carcinogen for human beings.
Lead, cadmium, chromium and mercury are common toxic pollutants, and their soluble substances have obvious harm to human body. Excessive lead will damage the nervous, hematopoietic and reproductive systems, especially for children, which will affect their growth and intellectual development. Long-term inhalation of cadmium dust can damage kidney or lung function, and long-term skin contact with chromium compounds can cause contact dermatitis or eczema. Chronic mercury poisoning mainly affects the central nervous system.
Benzene has been recognized as a highly toxic carcinogen by the International Center for Research on Cancer, which mainly affects the hematopoietic system and nervous system of human body and also stimulates the skin, so its content should be strictly controlled. The harm of toluene and xylene to human body mainly affects the central nervous system and irritates the respiratory tract and skin. Toluene and xylene have similar chemical properties and are often used instead of each other in coatings, which have additive effects on human body.
References:
Interior wall coating-Baidu encyclopedia