I. Characteristics and Applications of Sealed Plastics
Plastic seals offer excellent sealing properties, completely encapsulating packaged items to prevent the intrusion of foreign substances such as gas and moisture, thereby maintaining freshness, preventing moisture, and preventing corrosion. Common plastic seals include fresh-keeping bags, vacuum bags, sealed boxes, and sealed bottles. These seals are widely used in the food, pharmaceutical, and daily chemical industries, effectively extending the shelf life of products.
II. Characteristics and Applications of Non-Sealed Plastics
Non-sealed plastic products primarily refer to plastic products that lack a sealing function. These products are generally made from processed plastic raw materials and possess characteristics such as good plasticity, strong toughness, and resistance to deformation under heat. Non-sealed plastic products are also widely used in everyday life, such as plastic cups, plastic bowls, plastic buckets, and plastic chairs.
III. The Difference Between the Two
The biggest difference between sealed and non-sealed plastics lies in their primary use cases and functions. Sealed plastics are suitable for packaging products that require high requirements for freshness preservation, moisture resistance, and corrosion resistance, while non-sealed plastics are suitable for packaging common household items and light-load items. Furthermore, because plastic seals must exhibit certain sealing properties, they differ from non-sealed plastics in terms of material selection and processing.
In summary, plastic seals and non-sealed plastics are two common plastic products in everyday life, differing in material selection, processing, and usage scenarios. Understanding these differences will help you better select the plastic product that best suits your needs.
