Pollution theory: foam ware is difficult to degrade and can cause "white pollution" and freon damages the ozone layer.
In theory, a plastic disposable foam lunch box buried in a hundred years to degrade will cause contamination of soil and groundwater. And it can not be reused in food grade materials after recycling, it can only be converted into high quality industrial raw materials. But because the food box will be attached to the edible oil, and the oil is not easy to clean, it is difficult to clean. This technical problem is not a major breakthrough, lunch boxes can not be processed after recycling. Therefore, according to the point of view of current technology, the recycling of polystyrene foam is difficult.
The kitchen agent of the lunchbox is freon, and environmental pollution still exists. Nowadays, although the use of butane as a foaming agent, compared to Freon, is expensive, there may be illegal factories that use a cheaper but harmful environment for the foaming agent.
The foam crockery first appeared on the train, due to the waste of plastic waste that caused serious damage to the railway landscape, the Ministry of Railways announced the prohibition of the use of the toilet of the railway station and replaced it with a tableware degradable
Theory of recycling: the new technology can reuse foam crockery.
Experts believe that the first PS foam dish for freon that produces foaming agent, the ozone layer is harmful, but the current freon is an alternative to butane, which will not cause damage to the atmosphere. To reduce the polystyrene foam box to produce "white pollution", recycling is the key point.
Recycling plastic foam boxes such as Recycling of polystyrene foam It is very necessary to protect our environment. And then we can reuse it to make some other products.