Common knowledge of paint: the harm of lead paint

Core tip: the U.S Environmental Protection Agency (EPA), the standard for lead based paints, considers paints with a lead content of 0.5% or more, or 10 mg or more per square centimeter, as lead based paints According to the limit of harmful substances in interior wall coating of interior decoration materials in China, the soluble lead in interior wall coating shall not be higher than 90 mg / kg The harm of lead paint once lead in the paint enters the human body through respiratory tract, digestive tract, skin and other ways, it will continue to accumulate in the blood, causing anemia, memory decline, high blood pressure, joint pain and other toxic reactions According to the test, paint chips of nail size Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: the standard of lead paint the U.S Environmental Protection Agency regards paint with lead content of 0.5% or more, or 10 mg / cm2 or more as lead paint According to the limit of harmful substances in interior wall coating of interior decoration materials in China, the soluble lead in interior wall coating shall not be higher than 90 mg / kg The harm of lead paint once lead in the paint enters the human body through respiratory tract, digestive tract, skin and other ways, it will continue to accumulate in the blood, causing anemia, memory decline, high blood pressure, joint pain and other toxic reactions It was determined that paint chips the size of nails contained 50 mg of lead Studies have found that infants and young children are the main victims of lead pollution According to the survey of China Center for Disease Control and prevention, 1 / 3 of children in China still consume excessive lead, and the pollution of home decoration products is the most common source of lead pollution for children According to the survey, the lead concentration in the air is 16 times higher than that at 1.5m from the ground, and the height of children is just in this range Infants often touch the wall with their hands, plus they have the habit of sucking their fingers, which is easy to absorb a lot of lead In addition, the absorption rate of lead in infants is as high as 53%, about 5 times that of adults The toxic sources of lead paint are mainly caused by the lead compounds contained in paint pigments, such as yellow lead, red lead and lead white Because it can keep the paint color bright for a long time, the more colorful the paint, the more likely it is to contain a lot of lead There are some simple ways to prevent lead poisoning, such as cleaning the floor and windowsill regularly every week, inhaling the carpet (carpet decoration effect picture), urging children to wash their hands frequently, especially before eating, to ensure that children's diet with high content of iron and calcium and low fat can make children absorb less lead in the environment At present, in China's building materials market, many of the components of the paint include organic pigments, and some brands have made the signboard of "environmental protection paint" According to professionals, "bright colored lead paint still has a large market share in China Although the lead content of white paint is very low, people prefer bright colors " Therefore, consumers should try their best to choose environmentally friendly paint, that is, ordinary paint, but also to choose a lighter color, in order to minimize lead pollution Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,