Characteristics of the hottest plastic packaging c

Characteristics of plastic packaging containers

Plastic packaging containers are containers with gear transmission and chain transmission, which refer to the molding and processing of plastic raw materials for packaging goods

with the rapid development of petrochemical industry and plastic industry, plastic bags can only be used first. In many ways, packaging containers made of metal, glass, ceramics, wood and other materials have been replaced, which does not show strong vitality

(1) characteristics of plastic packaging containers

① plastic has small density, light weight, and can be transparent or opaque

② it is easy to form and process. As long as the mold is changed, different kinds of containers can be obtained, and it is easy to form mass production

③ the packaging effect is good. There are many kinds of plastics, which are easy to color and bright in color. Different kinds of packaging containers can be made according to needs to achieve the best packaging effect

④ it has good corrosion resistance, acid and alkali resistance, oil resistance and impact resistance; And has good mechanical strength

plastic packaging containers also have their shortcomings: for example, plastic is easy to deform under high temperature, so the use temperature is limited; The surface of the container has low hardness and is easy to be worn or scratched; Under the action of photo oxygen and thermal oxygen, plastics will degrade, become brittle, and their properties will be reduced; Poor conductivity, easy to generate electrostatic accumulation, etc

(2) classification of plastic packaging containers

① according to the nature of the raw materials used, mainly polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, polycarbonate and other containers

② according to the container molding methods, there are mainly blow molding, extrusion molding, injection molding, stretch molding, rotational molding, vacuum molding and other containers

③ according to the shape and use. 2. Servo system tensile testing machine: it adopts servo motor control system to classify, mainly including plastic boxes, plastic barrels, plastic bottles, plastic bags, plastic hoses, etc