Polyester chips usually mean that the polyester raw materials obtained by polymerization are generally processed into flake particles of about 4*5*2 mm. The process route of polyester production has direct esterification method (pta method) and transesterification method (dmt method).
The pta method has the advantages of low raw material consumption and short reaction time. Since the 1980s,Pharmaceutical Bottle it has become the main process and preferred technical route for polyester. The large-scale production line is a continuous production process,Pharmaceutical Bottle and the semi-continuous and intermittent production processes are suitable for medium and small production devices.
The uses of polyester now include fiber, various containers,Pharmaceutical Bottle packaging materials, films, films, engineering plastics and other fields, mainly used in bottle-grade polyester,Pharmaceutical Bottle polyester film (mainly used in packaging materials, film and tape, etc.) and chemical fiber For polyester,Pharmaceutical Bottle the existing bottle-grade polyester chip production is relatively more complicated due to the increased requirements,Pharmaceutical Bottle which results in high manufacturing costs.
