Why plastic is not environmentally friendly?
Due to the inability of plastics to degrade naturally, it has become the number one enemy of mankind, and has also led to the tragedy of many animal deaths. For example, the monkeys in the zoo, pelicans, dolphins and other animal, are readily lost visitors swallowed 1 plastic bottles, and finally as indigestion and painful death; looked beautiful and pure sea, approaching the look, in fact, filled with various kinds of unable to accommodate the oceans of plastic waste, in more than one die seabirds sample intestines, found all kinds of plastic can not be digested.
3. plastics are made from petroleum refining products, and oil resources are limited.4. plastic buried in the ground for hundreds of years, thousands of years or even tens of thousands of years will not decay.5., the heat resistance of plastic is poor, easy to aging.
Plastics burn easily and produce poisonous gases when they burn. For example, toluene combustion produces a small amount of polystyrene, this substance can cause blindness, vomiting and other symptoms of inhalation, PVC combustion will produce toxic gases, hydrogen chloride in combustion, is a high temperature environment, will lead to plastic decomposition of toxic components, such as benzene etc..
The classification of waste plastics is very difficult and uneconomical.
