Preparation method and application of rigid-tough balanced nucleating agent

The invention relates to the technical field of nucleating agents, and particularly discloses a preparation method and application of a rigid-tough balanced nucleating agent. According to the nucleating agent, norbornene dianhydride reacts with amines to generate norbornene amic acid with amide groups, the norbornene amic acid reacts with salts of first main group metal elements to generate norbornene amic acid salt, and beta crystals generated through induction of the amide groups and alpha crystals generated through induction of dicarboxylic acid monovalent metal groups have a synergistic effect; the impact strength, the bending modulus and the thermal deformation temperature of the polypropylene are effectively improved. 本发明涉及成核剂技术领域，具体公开一种刚韧平衡成核剂的制备方法及其应用。所述成核剂以降冰片烯二酸酐和胺类反应生成带有酰胺基团的降冰片烯酰胺酸，再与第一主族金属元素的盐类反应生成降冰片烯酰胺酸盐，酰胺基团诱导生成的β晶和二元羧酸一价金属基团能够诱导生成的α晶协同作用，有效提升聚丙烯的冲击强度、弯曲模量和热变形温度。