Composition with isotactic polybutylene-1 and dibasic acid metal salt nucleating agent and preparation of composition

The invention discloses a composition. The composition comprises 0.01-5 parts of the dibasic acid metal salt nucleating agent and 100 parts of the isotactic polybutylene-1. Dibasic acid metal salt is used as the nucleating agent, so that transformation of the isotactic polybutylene-1 in a crystal form II into isotactic polybutylene-1 in a crystal form I can be effectively accelerated. The composition has the advantages that the isotactic polybutylene-1 in the crystal form II can be quickly transformed into the isotactic polybutylene-1 in the crystal form I by means of preparation by the aid of equipment such as an extruding machine, an injection molding machine, an internal mixer, an open mill and a torque rheometer or conventional rubber and plastic processing technologies, and accordingly the composition with the isotactic polybutylene-1 in the stable crystal form I can be obtained and has important significance in the industry and business. 本发明公开了种由0.01-5份二元酸金属盐类成核剂和100份等规聚丁烯-1的组合物，二元酸金属盐作为成核剂，有效的加速了等规聚丁烯-