What is the difference between asphalt damping sheet and butyl rubber?
Polycyclic aromatic hydrocarbons (PAHs) are a class of compounds composed of two or more aromatic rings, distributed and widely distributed in natural environment (two). Because most PAHs have carcinogenicity and teratogenicity, they have received extensive attention. Is a common, highly reactive, indirect carcinogen. 3, 4- benzopyrene released into the atmosphere, and always formed various types of atmospheric aerosol particles together in 8 microns of respirable dust particles, higher ratio of lung inhalation through respiratory tract, lungs, and even into the alveolar blood, leading to lung cancer and cardiovascular disease.
Polycyclic aromatic hydrocarbons among the greatest impact on the human body is benzopyrene, is a mutagen, a carcinogen, is a relatively strong fat soluble substance, it inhaled into the body, can stay in the pulmonary mucosa, in this case, possible cell variation, then the variation to finally, some shadows, or changes in the tumor, is a long time.
In Europe and the United States and other developed countries in the automotive industry, automobile damping film is generally used high polymer resin material, or rubber material. As raw materials, these two raw materials will not volatilize toxic and harmful gases. In China, there is a damping film made of asphalt,Continuous dissemination of odor, leading to air pollution in the car, endangering human health.
