Preparation method and application of hyperbranched polyethylene

The invention relates to application of a supergravity technology in the field of coordination polymerization reaction, and discloses a preparation method and application of hyperbranched polyethylene. The method comprises the following steps: (1) carrying out coordination polymerization reaction on an ethylene monomer, a solvent, a catalyst solution and an auxiliary catalyst solution under a supergravity condition; and (2) carrying out monomer removal, washing, separation and drying on the reaction product obtained in the step (1). The high-quality hyperbranched polyethylene product with the number-average molecular weight of 1000-1500000 and the molecular weight distribution index of 1.2-2.5 can be obtained by controlling the conditions such as the supergravity level, the dosage ratio of the reaction materials, the reaction temperature and the pressure, and compared with a reaction in a common polymerization kettle, the production efficiency is greatly improved, and the production cost is reduced. And the p