| abstract |
The invention discloses a preparation method of an environment-friendly multifunctional polyester film, wherein an infrared reflection medium is added into a polyester raw material in a middle layer of a base film; the surface layer and the bottom layer of the base film are prepared by uniformly blending PET polyester raw material with environment-friendly anti-ultraviolet absorbent, ultraviolet screening agent, infrared reflection medium, antibacterial agent, anti-reflection agent, antistatic agent and antifogging agent to prepare composite polyester raw material; and then, preparing the environment-friendly multifunctional polyester film with the thickness of 20-100 mu m by adopting a biaxial stretching three-layer co-extrusion process and using polyester raw materials of the middle layer, the surface layer and the bottom layer of the base film. The polyester film prepared by the method has antibacterial property, antistatic property, antifogging property and high transparency, and also has the effects of energy conservation, environmental protection and high weather resistance for preventing infrared rays and ultraviolet rays; it can be used for food show window display or other glass surfaces with high environmental protection requirements, and can also be used for glass surfaces of airplanes, automobiles, trains, ships and common building windows. |