With the development of animal husbandry, the state has continuously strengthened its supervision of the veterinary medicine industry. As an important part of the veterinary medicine industry, veterinary medicine plastic bottle packaging is also booming. The main materials of veterinary medicine plastic bottles are polyethylene (PE), polypropylene (PP), and polyester (PET).
Main features of polyethylene:
It is mainly divided into high-density polyethylene (HDPE) and low-density polyethylene (LDPE). It has a waxy appearance, is opaque, has good toughness, and is resistant to low temperatures but not high temperatures.
Main features of polypropylene:
It is generally divided into two types, ordinary type and high-transparency type, which have high hardness and are resistant to high temperatures and high pressures.
Main features of polyester:
It is a general term for polymers obtained by polycondensation of polyols and polyacids, mainly referring to polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and polyarylate. Its main features are: good transparency and glossiness, the bottles produced are beautiful and generous in appearance, the main production processes are injection blowing and two-step method, and it has good barrier properties.
