Pet Bottles : Safe Or Dangerous?
Polyethylene terephthalate or PET is a thermoplastic polymer resin that belongs to the polyester family and is mainly used in combination with glass fiber for the manufacture of synthetic fibers, liquid containers,thermoforming applications and engineering resins. It was in the 1970′s that PET bottles came to be rapidly manufactured using blow moulding techniques and thus it became an excellent material for beverage bottles. Some of the outstanding beneficial properties of PET include its lightweight, durability, strong material, extremely good optical properties and sufficient gas barrier performance. PET bottles are made by employing a process called ‘injection stretch blow moulding’ which enhances the properties of PET. Today, PET is used as a raw material for manufacturing bottles and containers for packaging a varied range of food products and consumer goods such as soft drinks, alcoholic beverages, cosmetics, pharmaceutical products etc.
PET bottles can be recycled so as to reuse the material with which they are manufactured and to lessen the amount of waste that goes to landfills. They are also recycled and reused for solar water disinfection in some of the developing nations.
However, environmentalists have raised serious concerns over the indiscriminate use of PET bottles. According to them, PET bottles have the potential to cause significant health hazards for users. Scientists and reserachers at the Goethe University in Frankfurt discovered that estrogenic compounds leach from the plastic in PET bottles into water. There is a strong probability thatcertain unidentified chemicals in these plastics have the extreme potential to interfere with estrogen and other reproductive hormones, causing disastrous health hazards.
Environmentalists and scientists recommend that PET bottles including single-use water, soda and juice bottles must not be reused. The Green Guide reports that such bottles could be safe only for one-time use and reuse should be strictly avoided. Studies reveal that they may leach DEHP(Bis(2-ethylhexyl)phthalate) another possible human carcinogen, into water which could create serious health risks. The Berkeley Ecology Center has come up with a recent discovery that the manufacture of PET bottles uses tremendous amounts of energy and resources and releases toxic pollutants into the atmosphere that ultimately contributes to global warming.
The author is associated with http://www.ipfonline.com . http://www.ipfonline.com allows you to efficiently and quickly search through product profiles of engineering and industrial products from Indian manufacturers.
Article from articlesbase.com
Jackson Browne rants to blogger Beth Terry of Fake Plastic Fish about bottled water after the screening of the film Tapped organized by the Plastic Pollution Coalition. He says bottled water is “inconvenient” and compares albatross chicks that starve from eating plastic to our society in which we are starving for “real food and real information.” Jackson also talks about how he carries his own reusable water bottle through airport security and brings his own water cooler on tour to avoid plastic water bottles. For more information about plastic in the environment, visit: fakeplasticfish.com http For more information about bottled water, arrange for a screening of the movie, Tapped: tappedthemovie.com
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