How to classify waste plastics? Identification methods?
The rapid development of the plastics industry also brings a series of social problems caused by waste plastics, waste plastics and waste plastics which people are unwilling to see. Plastic products have been applied to every corner of society. From industrial production to basic necessities of life, plastic products are everywhere. People began to find that the plastic garbage has quietly come to us, seriously affect our health and living environment, such as agricultural land due to the impact of waste plastic and waste plastic production began, triggered by the "white pollution" to make people headache, not decay decomposition boxes can not be effectively recovered, with plastic life the garbage can not start treatment...... The sharp increase in plastic waste and the social and environmental problems caused by it are placed in front of people and placed in the place where people live and live all over the world.
There are several steps in the identification of waste plastics:1, look at the color;2, look at the brightness (transparent material, this step can be removed);3, feel (weight, sensitivity, smoothness);4, ignition (see whether the flame color smoke, whether or not from fire burning or not burning);5, smell smell (all kinds of plastic taste is not the same, including flame retardants, etc.);6, drawing (CaC03 drawing more certainly not good, and also can not pull out the silk).
In general, transparent plastic bags, such as common use fresh-keeping bag, belonging to recycled plastic bags, and opaque plastic bags, such as markets with color and black plastic bags, garbage bags, transparency, flexibility is poor, belongs to Unrecyclable plastic bags. The reason is that opaque plastic bags are made from waste plastics and have lost the value of recycling.
