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PET bottle material feature

Carrie Jul 23,2019 Share this post:

PET bottles are mainly used for oral solids. The preparations are mainly PET, PET, which has good odor barrier properties, and has large tensile strength and low temperature resistance. It is used as a packaging material for medicinal plastic bottles.


PET medicine bottle

A PET bottle is a plastic material called polyethylene terephthalate (PET) or PET, which is a combination of Terephthalic acid and Ethylene glycol. The resulting polymer. PET plastic has the characteristics of light weight, high transparency, impact resistance and non-fragmentation, and can also prevent carbon dioxide gas and keep the soda water. PET chemical name polyethylene terephthalate is a thermoplastic material, which is generally obtained by esterification of terephthalic acid with ethylene glycol to form a PET monomer, which is then polymerized to form a polymer.

The forming of the medicinal PET bottle mainly adopts the injection stretch blow molding process. After the PET raw material is uniform in the barrel, the preform is injected into the preform injection mold, and the preform is longitudinally stretched by the stretching rod, and then the bottle body is subjected to compressed air. Inflating realizes transverse stretching, so that the obtained plastic bottle has high strength, high precision of bottle mouth and thread size, stable bottle size, smooth surface and good transparency, and is particularly suitable for liquid and solid pharmaceutical packaging.

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