Compared with PVC, EVA, butyl rubber and other plastic materials, TPU not only has environmental protection, non-toxic, mildew and antibacterial, wear and corrosion resistance, biological compatibility and other excellent properties, but also tortuous tear resistance, acid and alkali oil resistance, aging and oxidation resistance, broad weather resistance and other properties are very excellent. TPU membrane with its incomparable advantages will become one of the mainstream environmental materials in the 21st century.