Engineering plastics have excellent comprehensive properties, high rigidity, small creep, high mechanical strength, good heat resistance, good electrical insulation, and can be used in harsh chemicals and physics. It long-term use in the environment, can replace metal as an engineering structural material, occupying an important position in the field of materials. Compared with general-purpose plastics, engineering plastics can achieve higher requirements in terms of mechanical properties, durability, corrosion resistance, heat resistance, etc., and are more convenient to process and can replace metal materials.   Engineering plastics are widely used in electrical and electronic, automotive, construction, office equipment, machinery, aerospace and other industries. With the improvement of materials technology and design technology, the application of engineering plastics instead of metal materials is increasing, and plastics are used to replace steel.   Engineering plastics has become the fastest growing field in the plastics industry in the world. Its development not only supports the national pillar industries and modern high-tech industries, but also promotes the transformation of traditional industries and product structure. Engineering plastics are increasingly used in the automotive field, mainly for interiors such as bumpers, fenders, fuel tanks, instrument panels, body panels, doors, lampshades, fuel pipes, radiators, and engine-related components. In the field of machinery, engineering plastics can be used for mechanical parts such as bearings, gears, screw nuts, seals and other mechanical parts such as housings, covers, handwheels, handles, fasteners and pipe joints. In the field of electronic appliances, engineering plastics can be used for wire and cable coating, printed circuit boards, insulating films and other insulating materials and electrical equipment structural parts.  

According to statistics, the apparent consumption of plastics is around 80 million tons, and the apparent consumption of plastic products is around 60 million tons. Plastic products are closely related to people's lives, and their impact on plastic raw materials is also extremely significant. It can be seen from the growth data of China's plastic product output from 2008 to the present that China's plastic product industry maintained a stable growth from 2008 to 2018, and there was a significant decline in 2018. This is also related to the introduction of domestic industry policies to a certain extent. For example, strict environmental protection inspections. Since 2017, environmental protection inspections have been carried out. Small downstream factories and non-compliant enterprises have been banned and shut down one after another, restricting the increase in the output of plastic products. Let's take a look at the import and export of plastic products. The import volume of plastic products in China is relatively small, which has a great relationship with the situation that my country is a big country of plastic products. Most of the import dependence is less than 1%. In terms of exports of plastic products, the export situation continues to be optimistic. It has remained at the left side of 15% all year round. In 2018, the export reached 19%, and the export volume was 13.163 million tons.