Traditional Culture Encyclopedia - Traditional culture - What are the advantages and disadvantages of plastic packaging containers?
What are the advantages and disadvantages of plastic packaging containers?
Advantages: ① Plastic has low density, light weight, transparency or opacity; (2) It is easy to form and process, and different kinds of containers can be obtained by changing the mold, which is easy to form mass production. Disadvantages, such as plastic deformation at high temperature, low surface hardness and easy wear; It will degrade and become brittle under photooxidation and thermal oxidation; Poor conductivity, easy to produce electrostatic accumulation, etc. Dear, according to the "Measures for On-site Verification of Food Plastic Packaging, Containers and Tools Licensing Enterprises", we will focus on checking system documents, recycled materials, external inspection reports, production records, raw material supplier qualifications and reports, and so on! ① Low plastic density; (2) easy forming and processing; ③ Good packaging effect; ④ Good corrosion resistance, acid and alkali resistance, oil resistance and impact resistance; And has good mechanical strength. Plastic packaging containers also have their disadvantages: for example, plastic is easy to deform at high temperature, and the surface hardness of containers is low; Degradation, embrittlement, performance degradation and other aging phenomena are a little bit, and the investment is small. Intuition.
Shortcomings are fragile,
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