What are the commonly used materials for blister? What are the characteristics of each?
What are the commonly used materials for blister? What are the characteristics of each?
Answer:
The sheet used for blister is called hard sheet or film, and the sheet with a thickness greater than 2mm is called plate,
Commonly used are: PET (polyethylene terephthalate) hard sheet, PVC (polyvinyl chloride) hard sheet, PS (polystyrene) hard sheet, ABS (engineering plastics). PS hard sheet has low density, poor toughness, easy to burn, and will produce styrene gas (a harmful gas) when burning, so it is generally used to produce various industrial plastic pallets. PVC hard sheet has moderate toughness and is not easy to burn. When burning, chlorine gas will be generated, which will have a certain impact on the environment. PVC is easy to heat and seal. Sealing machine and high frequency machine can be used to seal the edge. It is the main raw material for the production of transparent plastic products.
PET hard sheets have good toughness, high transparency, easy combustion, and do not produce harmful gases during combustion. They are environmentally friendly materials, but they are expensive and suitable for high-grade blister products. Blister shells in European and American countries generally require PET hard sheets, but they are not easy to heat seal, which brings great difficulties to packaging. In order to solve this problem, people compound a layer of PVC film on the PET surface, named PETG hard sheets, but the price is higher. The materials used for thick plates are mainly: ABS, acrylic (organic glass),PS,PC,PVC, etc.
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Xiamen Dacheng
2020-11-20
Xiamen Dacheng supplies ASA blister board and ODM & OEM processing service
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