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Characteristics and classification of plastic packaging containers
by：Lisson
2021-04-07
①Plastic has low density, light weight, and can be transparent or opaque.
②It is easy to form and process, as long as the mold is changed, you can get different kinds of containers with technetium, and it is easy to form mass production.
③The packaging effect is good, there are many kinds of plastics, it is easy to be colored, and the color is bright. Various types of packaging containers can be made according to the needs to achieve a good 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, plastics are easily deformed at high temperatures, so the use temperature is limited; the surface of the container has low hardness and is easy to wear or scratch; under the action of photooxygen and hot oxygen, plastics will degrade and change Brittleness, performance degradation and other aging phenomena; poor conductivity, easy to generate static electricity accumulation, etc.
Classification of plastic packaging containers:
① According to the nature of the raw materials used, there are mainly polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, polycarbonate and other containers.
② According to the classification of container molding methods, there are mainly blow molding, extrusion molding, injection molding, stretch molding, rotational molding, vacuum molding and other containers.
③ Classified by shape and purpose, there are mainly plastic boxes, plastic barrels, cosmetic packaging hoses, plastic bags, plastic hoses, etc.
②It is easy to form and process, as long as the mold is changed, you can get different kinds of containers with technetium, and it is easy to form mass production.
③The packaging effect is good, there are many kinds of plastics, it is easy to be colored, and the color is bright. Various types of packaging containers can be made according to the needs to achieve a good 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, plastics are easily deformed at high temperatures, so the use temperature is limited; the surface of the container has low hardness and is easy to wear or scratch; under the action of photooxygen and hot oxygen, plastics will degrade and change Brittleness, performance degradation and other aging phenomena; poor conductivity, easy to generate static electricity accumulation, etc.
Classification of plastic packaging containers:
① According to the nature of the raw materials used, there are mainly polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, polycarbonate and other containers.
② According to the classification of container molding methods, there are mainly blow molding, extrusion molding, injection molding, stretch molding, rotational molding, vacuum molding and other containers.
③ Classified by shape and purpose, there are mainly plastic boxes, plastic barrels, cosmetic packaging hoses, plastic bags, plastic hoses, etc.
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