Generally, the plastics we use can be divided into thermoplastic and thermosetting. Waste plastics are not only a variety of varieties, but also novel and strange. This is mainly because they come from various industries and can be recycled and utilized in China. It is a thermoplastic because it is soluble and plastic.

       Waste plastics because of the many sources of the industry, which also leads to different levels of material utilization, the price is not the same, first the color is generally shallower (even colorless and transparent), the scope of use is more, it can also pass later Adding other colors to make the modulation, you can also directly make a white product, then the price of recycling will be higher.

    Nowadays, the content of CaC03 in the main stone powder in China's market determines the utilization value of waste plastics. If the content of CaC03 is too much, the price will be lower. People can look at it with the eyes. If the product is bright and lustrous, then there will be more CaC03. These products are often heavy. After the fire is burned, the part will appear red and finally gray. In addition, waste plastics should also pay attention to the enhancement (referring to glass fiber) products. At present, only PA, PBT, PP, etc. can be used to enhance the products, and the price is not high.

(Gray plastic box official website) teach you how to identify waste plastics by the following methods:

1. By smelling, the taste of various plastics is different, including the composition of the flame retardant;

2. Observe by color;

3, drawing, if the product CaC03 too much then the product is definitely not good, the enhanced can not pull the wire.

4, look at the gloss of the product (note that if the product is transparent then this step can be removed);

5, feel the weight and smoothness;

6, can be ignited with a small fire, observe whether the flame color smoke, whether the product contains burning from the fire or not at all.