目前,聚酯瓶(PET)已逐渐成为饮料包装领域的首选材料,由于其具有透明性好、化学性质稳定、阻隔性相对较好、质轻价廉和可回收再利用等优点,因而应用十分广泛。但作为啤酒包装,PET瓶的气体阻隔性仍不符合要求。因此,不断提高聚酯瓶的气体阻隔性是当前的主要研究方向。我国是世界 At present, polyester bottle (PET) has gradually become the preferred material in the field of beverage packaging. Due to its advantages of good transparency, stable chemical property, relatively good barrier property, low cost and recyclability, the PET widely. However, as a beer packaging, PET bottles of gas barrier still does not meet the requirements. Therefore, the continuous improvement of gas barrier properties of polyester bottles is the current main research direction. My country is the world