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用小角Ｘ－射线散射，广角Ｘ－射线衍射，差示扫描量热法，研究了ＨＥ－１型钛系催化剂异相聚合超高分子量聚乙烯的稀溶液的结晶和熔融结晶的熔点，熔化热，结晶度，长周期，晶区厚度和非昌区厚度随分子量与结晶温度的关系．并着重讨论了熔融结晶和初生态结晶的不同过程机理．结果表明：ＵＨＭＷＰＥ稀溶液结晶的结晶度（Ｘｃ％），长周期（Ｌ）和晶区厚度（Ｌｃ）与分子量Ｍｗ无关，随结晶温度升高而增加，非晶区厚度（Ｌａ）与分子量和结晶温度均无关，熔点Ｔｍ随分子量增大稍有升高．熔融结晶样品长周期与分子量无关，却和结晶温度和时间有关．其结晶度和晶区厚度随分子量增大而下降，非昌区厚度和熔点均随分子量增大而增大，初生态粉末中没发现长周期，却发现有较高熔点．
X-ray diffraction, wide-angle X-ray diffraction and differential scanning calorimetry were used to study the crystallization and melt crystallization temperature of HE-1 titanium-based catalysts heterogeneous polymerization of ultra-high molecular weight polyethylene. The heat of fusion , Crystallinity, long period, crystal thickness and thickness of non-Chang District with the molecular weight and crystallization temperature. The different process mechanisms of melt crystallization and nascent crystallization are emphatically discussed. The results show that the crystallinity (Xc%), long period (L) and crystal thickness (Lc) of the UHMWPE dilute solution are independent of the molecular weight Mw and increase with the increase of the crystallization temperature. The relationship between the amorphous thickness The crystallization temperature has nothing to do, the melting point Tm slightly increased with the increase of molecular weight. The long period of the melt crystallization sample has nothing to do with the molecular weight, but with the crystallization temperature and time. The crystallinity and grain thickness decreased with the increase of molecular weight. The thickness and melting point of non-Chang district increased with the increase of molecular weight. No long period was found in the nascent powder, but higher melting point was found.