一种促进超高分子量线性聚合物解缠结的方法,其特征在于,包括如下步骤：将超高分子量线性聚合物与含氟聚合物助剂于转矩流变仪中密炼,密炼温度为200℃,转速为20~55rpm,填充率为80%,密炼10min；于硫化机中模压成型,选择模具分别为1mm,2mm,3mm,4mm,于17MPa的压力下,热压温度为200℃,时间为20min；室温冷压20min,将模压板材机械制备成拉伸样条和直径为8mm的圆片；在旋转流变仪中,选择小角振荡剪切模式,直径为8mm的平板,定性地表征聚合物的流变性能,定量地表征聚合物的缠结密度；在万能电子试验机中,表征聚合物的力学性能,测试标准符合GB/T#1040.2-2006,拉伸速度为50mm/min,拉力为10KN。

The invention discloses a method for promoting disentangling of an ultra-high molecular weight linear polymer. The method comprises the following steps: internally mixing the ultra-high molecular weight linear polymer with a fluorine-containing polymer aid in a torque rheometer, carrying out compression molding forming in a vulcanizing machine, and mechanically preparing a stretching sample strip and a wafer with a diameter of 8mm from a compression molding plate; selecting a small angle vibration shear mode and a panel with a diameter of 8mm to qualitatively represent rheological performance of the polymer and quantitatively represent entangling density of the polymer in a rotational rheometer; and representing mechanical performance of the polymer in a universal electronic testing machine, wherein test standards meet GB/T 1040.2-2006, the stretching velocity is 50mm/min, and the tensile force is 10KN. By introducing the fluorine-containing polymer aid so as to promote disentangling of molecular chains of the ultra-high molecular weight linear polymer, the flowing performance of the polymer is improved, and meanwhile, the mechanical performance of the polymer is obviously improved.