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软硬包装通过涂层获得高阻隔性能有各种形式:①共挤②溶融涂层③水化涂层④金属涂层。重点是目前欧洲市场塑料容器上使用的特殊配方的PVDC(聚编二氯乙烯)涂层技术的应用。因为PVDC容易形成晶体结构,因而具有优等的抗水汽与气体性能。PVDC是最佳的阻隔聚合物,它还能极好地抵抗许多非有
Hard and soft packaging through the coating to obtain high barrier performance in various forms: ① co-extruded ② melt coating ③ hydration coating ④ metal coating. The focus is on the use of specially formulated PVDC (Poly Vinylidene Dichromate) coating technology currently used on plastic containers in the European market. Because PVDC is easy to form a crystal structure, it has excellent resistance to moisture and gas. PVDC is the best barrier polymer, it also excellent resistance to many non-existent