Why carpet can cause indoor environment formaldehyde pollution?
The backing material of the carpet is bonded with water soluble rubber, such as styrene butadiene rubber latex and natural latex, which is strong in cementation force. The pollution of the synthetic adhesive to the surrounding air is serious. These adhesives can emit large amounts of organic pollutants in use, the main types are: phenol, cresol, formaldehyde, acetaldehyde, styrene, toluene, ethyl benzene, acetone, two isocyanate, vinyl acetate, epichlorohydrin, including benzene, benzene pollution.
The carpet is a long history of interior decoration, the traditional carpet is a former animal hair material, hand woven. At present, carpets are usually made of chemical fiber as raw material. The chemical fibers used for the preparation of carpets include polyacrylic acid amine fiber (Jin Guan), polyester fiber (polyester fiber), polypropylene fiber (polypropylene fiber), polyacrylonitrile fiber (acrylic fiber) and viscose fiber, etc.. Carpet in use, will have adverse effects on indoor air: (1) release and breeding of harmful gases and substances. Chemical fiber carpet can release formaldehyde in air and some other organic chemicals such as acrylonitrile and propylene. The carpet in a hazard is its strong adsorption capacity, can absorb many harmful gases such as formaldehyde, dust and pathogenic microorganisms, especially pure wool carpet is the ideal place to hide and breed dust mites. A foreign scholar found that indoor carpet and residents of tumor occurrence have a certain relationship, after investigation confirmed that this is mainly adsorbed by adhesive and carpet shoelace is related to the carcinogenic polycyclic aromatic hydrocarbons.
Carpet causes skin allergy. The fine wool carpet is a kind of sensitization source. In the process of use, the fine wool has reached a certain degree of destruction due to constant friction. The fine lint released can cause skin allergy and even cause asthma.
