Introduction to the advantages and materials of plastic bags
The plastic bag is a bag made of plastic as the main raw material. It is an indispensable item in people’s daily life. It is often used to hold other items. It is widely used because of its cheapness, extremely lightweight, large capacity, and easy storage.
The plastic usually used is not a pure substance, it is made up of many materials. Among them, high molecular polymers (or synthetic resins) are the main components of plastics;
In addition, in order to improve the performance of plastics, various auxiliary materials such as fillers, plasticizers, lubricants, stabilizers, colorants, etc. must be added to the polymer to become a plastic with good performance.