Molecular structure

There are basically two types of plastic: the first is a linear structure, a polymer compound having such a structure is called a linear polymer compound; the second body structure, a polymer cosmetic gift box  compound having such a structure is called a high figure molecular compounds. Some polymer having a branched chain, a branched polymer known as belonging to the linear structure. Although some high molecular crosslinking between molecules, but less cross-linking, called reticular structure, the body structure belongs.
Two different structures exhibit wholesale cosmetic bags two opposite properties. Linear structure, heat can be melted, the smaller the hardness and brittleness characteristics. Body structure hardness and brittleness. Polymer plastic then two structures are, by the linear polymer is made ​​of thermoplastic polymer made ​​by the body is a thermosetting plastic.