The raw material of polyester PET medical plastic bottle is mainly PET. PET bottle refers to a plastic material called polyethylene terephthalate (PET), or PET for short, which is a polymer formed by the combination of terephthalic acid and ethylene glycol.
Polyester PET medical plastic bottle material features: colorless, transparent, harmless, odorless, tasteless, good chemical stability, good resistance to oxygen and water vapor, good odor resistance, high tensile strength, and good low-temperature resistance. It is used as the pricing packaging material for medical plastic bottles.
Advantages of polyester PET medical plastic bottle material: light weight, high transparency, impact resistance, not easy to break and other characteristics, it can also prevent carbon dioxide gas and keep the steam and water aerated. PET chemical name is polyethylene terephthalate, which is a thermoplastic material. Generally, polyethylene terephthalate and ethylene glycol are esterified to form PET monomer, and then polymerized to form polymer.
Polyester PET medical plastic bottle material is very suitable for liquid and solid drug packaging. The processed bottle body has the advantages of stable size, smooth surface and good transparency. The molding of polyester PET medical plastic bottle mainly adopts the injection stretch blow molding process. After the PET raw materials are uniform in the barrel, they are injected into the preform injection mold to stretch the preform longitudinally through the stretching rod, and then the bottle body is inflated with compressed air to achieve horizontal stretching. In this way, the plastic bottle made has high strength, and the size accuracy of the bottle mouth and thread is high.