According to statistical data, the consumption of thermoplastics for auto parts is still increasing at an average annual rate of over 6%, and due to the low price and superior performance of EPP, the development of automotive interior and exterior parts will be mainly EPP, which is now used in the market EPP parts accounted for 42% of the market share, and is expected to grow at an annual rate of 8%, especially in automotive interiors. At present, each car uses an average of 100-300kg of plastic, of which about 6-10kg of EPP plastic is used. Therefore, EPP materials have a wide range of applications in automobile bumpers, side anti-vibration cores, door anti-vibration cores, advanced safety car seats, tool boxes, trunks, armrests, bottom pads, sun visors, dashboards, etc.