本发明公开了一种具有自修复功能的离子交联超高分子量聚乙烯材料及其制备方法。所述材料按重量份数计包括以下组分：UHMWPE 100份，高密度聚乙烯10～30份，线性低密度聚乙烯5～20份，氧化物1～10份，硬脂酸盐2～8份，过氧化物0.2～1份，功能单体2～10份，第二单体1～4份。本发明所述离子交联超高分子量聚乙烯材料不仅耐磨性能优异，拉伸强度、断裂伸长率、摩擦系数和磨损量均符合标准；而且还具有微裂纹自修复的功能，从而延长UHMWPE在高强度结构件中的使用寿命，极大拓展UHMWPE材料的应用领域；所述离子交联超高分子量聚乙烯材料的制备过程简单，方便操作，便于大规模化工业生产。

The invention discloses an ionic crosslinking ultra-high molecular weight polyethylene material with a self-repairing function and a preparation method of the ionic crosslinking ultra-high molecular weight polyethylene material. The material comprises the following components in parts by weight: 100 parts of UHMWPE, 10-30 parts of high-density polyethylene, 5-20 parts of linear low-density polyethylene, 1-10 parts of an oxide, 2-8 parts of a stearate, 0.2-1 part of a peroxide, 2-10 parts of a functional monomer and 1-4 parts of a second monomer. The ionic crosslinking ultra-high molecular weight polyethylene material is excellent in wear resistance; tensile strength, elongation at break, friction coefficient and abrasion loss all meet the standard; the performance is excellent; and microcrack self-repairing function is also realized, so that the service life of UHMWPE in high-strength structural parts is prolonged, and the application field of the UHMWPE material is greatly expanded; the preparation process of the ionic crosslinking ultra-high molecular weight polyethylene material is simple, convenient to operate and convenient for large-scale industrial production