Polyethylene film as well as preparation method and application thereof

The invention provides a polyethylene film as well as a preparation method and an application thereof. The preparation method comprises the following steps: adding an ethylene homopolymer, an ethyleneand olefin copolymer and polyacrylate to a mixer in a mass ratio being 44:37-44:32-41:28 and performing a mixed reaction at 175-182 DEG C for 2-5 min, and performing blow molding by an extruder at 179-187 DEG C under the conditions of the blow-up ratio being 2.5-3.0 and the draw ratio being 4-6 to obtain the polyethylene film. The polyethylene film prepared with the method can effectively convertsunlight energy into heat, thereby changing temperature of ambient environment and inhibiting pollutant growth. 本发明提供了一种聚乙烯膜及其制备方法和应用。制备方法包括：将乙烯均聚物、乙烯与烯烃的共聚物、聚丙烯酸酯按照质量比为44：37～44：32～41：28加入到混合机中，在175～182℃的温度下混合反应2～5min，用挤出机在温度为179～187℃、吹胀比为2.5～3.0、牵引比为4～6的条件下吹塑，即得到聚乙烯膜。根据本发明的方法制备的聚乙烯膜，可有效将太阳光能转化为热量，从而改变周围环境的温度，达到抑制污染物生长的目的。