Оценочный EVOH F171B

EVOH (ethylene/vinyl alcohol copolymer) EVOH has been the most widely used high barrier material. In addition to the non-stretching type, the film types of this material include biaxially oriented, aluminum vapor deposition, and adhesive-coated types. Among the biaxially oriented types, there are heat-resistant types for aseptic packaging products. The barrier properties of EVOH depend on the ethylene content. Generally speaking, when the ethylene content increases, the gas barrier properties decrease, but it is easy to process. The remarkable feature of EVOH is that it has excellent gas barrier properties and excellent processability. In addition, it has excellent transparency, gloss, mechanical strength, stretchability, abrasion resistance, cold resistance and surface strength. In the field of packaging, EVOH is made into a composite film intermediate barrier, which is used in all rigid and flexible packaging