研究了不同比例共混的茂金属聚乙烯 (MPE)和高压聚乙烯 (LDPE)样品的结晶行为、结晶形态和力学性能 ,讨论了共混物组成、升降温速率对样品结晶行为、形态和力学性能的影响 ,为MPE的加工提供了理论依据 .加入少量LDPE ,MPE材料的结晶速率、结晶度有所降低 ,抗张强度、抗撕裂强度降低 ,但程度均较小 .因此加工MPE时 ,混入少量LDPE ,既能改善材料的加工性能 ,又能保持材料优良的力学性能 The crystallization behavior, crystal morphology and mechanical properties of different proportions of blends of metallocene polyethylene (MPE) and high pressure polyethylene (LDPE) were studied. The effects of composition of the blend, heating and cooling rate on the crystallization behavior, morphology and mechanical properties The mechanical properties and mechanical properties of MPE can be improved.With the addition of a small amount of LDPE and MPE, the crystallization rate and the crystallinity of MPE decreased, but the tensile strength and tear strength decreased, Mixed with a small amount of LDPE, both to improve the processing performance of the material, but also to maintain the excellent mechanical properties of the material