0引言近年来,随着人们生态意识的不断增强,开发环保型包装材料已成为现代包装行业的热门研究方向之一。包装可分为三大类:初级包装(接触商品并随商品一并销售的包装)、二级包装(用于携带大量的初级包装商品的较大包装,例如盒子)、三级包装(用于协助大批量货物运输的包装,例如木托盘和塑料包装)。通常,二级包装和三级包装材料容易收集和清理回收。但是对 0 Introduction In recent years, as people’s ecological awareness continues to increase, the development of environmentally friendly packaging materials has become one of the hot research directions in the modern packaging industry. Packaging can be divided into three broad categories: primary packaging (packaging that comes in contact with and is sold with the product), secondary packaging (larger packaging for carrying large quantities of primary packaging such as boxes), tertiary packaging Packages that assist in the transport of large quantities of goods, such as wooden pallets and plastic packages. In general, secondary and tertiary packaging materials are easy to collect and clean and recycle. But yes