Classification of waste plastics in simple ways

The plastic products are widely used in every walk of life and daily necessities,because of their characteristics in light weight,beautiful appearance,easy to process,economical use. But the extensive use of plastics caused serious environment pollution. The most positive way to eliminate plastic pollution is recycling of the waste plastics. There are different kinds of plastics,and their characteristics and usage are also different. The first step of recycling waste plastics is to identify categories. Several simple methods for classification of plastic were describes.