Method for wet preparation of PE (polyethylene) plastic polymers

The invention discloses a method for wet preparation of PE (polyethylene) plastic polymers and belongs to the field of preparation of plastic polymers. Scindapsus aureus leaves and Japanese creeper leaves are cleaned and mashed, an extraction liquid is obtained through extraction by the aid of ethyl acetate and mixed with PE powder with the ultra-high molecular weight to be steamed, ferric hydroxide particles are added after cooling, the mixture is stirred to be evenly mixed, left to stand for precipitation, filtered, extruded into a cake, dried and squeezed into filaments, the filaments are rinsed with concentrated sulfuric acid, washed with deionized water, rinsed with a sodium hydroxide solution and washed with deionized water sequentially and are rinsed with a plant extraction liquid repeatedly, and the PE plastic polymers are prepared through drawing and natural air-drying. The method has the benefits as follows: the preparation method is simple, and extraction by the aid of an extraction agent is not required during preparation, so that no pollution is caused to the environment; the production cost is low, and the obtained product is good in quality and excellent in performance.