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When it comes to plastic products, I believe that everyone is familiar, because we can see everywhere in our lives. So what exactly is a plastic product? What are the characteristics of plastic products? Here is a small series by Jiuzhi.com to tell you what plastic products are and what they are.
Definition of plastic products:
Plastic products are collectively referred to as daily necessities and industrial products processed from plastics. It includes all kinds of products such as plastic injection and plastic injection.
Performance characteristics of plastic products:
1. Lightweight plastics are lighter materials with a relative density distribution between 0.90 and 2.2. Can plastic float to the surface? In particular, foamed plastics have a lighter texture and a lighter density with a relative density of only 0.01. This property allows plastics to be used in the production of products that require a reduction in their own weight.
2. Excellent chemical stability Most plastics have good corrosion resistance to acids, alkalis and other chemicals. Especially known as the plastic king of PTFE (F4), its chemical stability is even better than gold, put in "Aqua regia" boiled for more than ten hours will not deteriorate. Due to its excellent chemical stability, F4 is an ideal corrosion resistant material. For example, F4 can be used as a material for conveying corrosive and viscous liquid pipes.
3. Excellent electrical insulation properties Ordinary plastics are poor conductors of electricity, and their surface resistance and volume resistance are very large, which can be represented by numbers up to 109-1018 ohms. The breakdown voltage is large and the dielectric loss tangent is small. Therefore, plastics have a wide range of applications in the electronics and machinery industries.
4. Poor conductor of heat, with the effect of noise reduction and shock absorption Generally speaking, the thermal conductivity of plastic is relatively low, equivalent to 1/75 to 1/25 of steel, and the micropores of foam. Contains gas, which is better in heat insulation and shock resistance. For example, the thermal conductivity of polyvinyl chloride (PVC) is only 1/357 of that of steel and 1/1250 of aluminum.
Jiuzhi Plastics Network
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