Original Title: Dry Goods Sharing │ Detailed Interpretation of High Pressure Low Density Polyethylene Production Process Technology Low density polyethylene (LDPE) is a thermoplastic resin obtained by free radical polymerization with polymerization grade ethylene as polymerization monomer and peroxide as initiator. Its molecular weight is generally between 100000 and 500000, and its density is 0.91 ~ 0.93 G/cm3. It is the lightest variety of polyethylene resin. It has good softness, extensibility, electrical insulation, transparency, easy processing and certain air permeability. It has good chemical stability, alkali resistance and general organic solvent resistance, and has a wide range of applications, including extrusion coating, blown film, wire and cable coating, injection molding and blow molding. As the service life of the free radicals generated by the initiator is relatively short, the ethylene is highly compressed by increasing the reaction pressure (110-350MPa), so VA with high vinyl acetate content. Due to the characteristics of different processes, the product of kettle process has more branched chains and better impact strength, which is suitable for d igh-pressure diaphragm pump, jacketed glass reactor ,jacketed glass reactor, and then enters the reactor along with ethylene; And (4) a mode of combining the forward feeding of hot ethylene and the multi-point lateral feeding of cold ethylene in (10min) and a vinyl acetate content of 35%. In China, Levima Group (formerly Shandong Haoda), with a plant capacity of 10 × 104t/a,thin film distillation, and Zhongtian Co-founder, with a plant capacity of 12 × 104t/a, are the main ones to introduce this process. Return to Sohu to see more Responsible Editor:. toptiontech.com
Dry Goods Sharing
