Polyethylene composite material and preparation method thereof

The present invention relates to a polyethylene composite material, which comprises 40-70 wt% of linear low density polyethylene, 5-20 wt% of high density polyethylene, 10-20 wt% of a reinforcing agent, 5-10 wt% of a compatibilizer, 0.03-0.2 wt% of an antioxidant, and 2-10 wt% of a surfactant. The present invention further provides a method for preparing the polyethylene composite material. According to the present invention, the polyethylene composite material can meet the requirements of the European standard BS EN13598-2:2009 on various indexes of raw materials, can meet the requirements of the MOHURD standard CJ/T233-2006 centric axial load, and can be used for preparation of rotational molding inspection wells, such that the disadvantage of insufficient strength of the rotational molding inspection well in the prior art is overcome, and the production cost is significantly reduced. 本发明涉及供种聚乙烯复合材料。该聚乙烯复合材料包含：40-70wt％的线性低密度聚乙烯、5-20wt％的高密度聚乙烯、10-20wt％的补强剂、5-10wt％的相容剂、0.03-0.2wt％的抗氧剂以及2-10wt％的表面活性剂。本发明还提供了种制