磷酸双酚酯盐成核剂的合成及在PP中的应用

Synthesis of Diaryl Phosphate Metal Salts Nucleating Agents and Its Application to Polypropylene

通过新技术路线合成磷酸双酚酯盐成核剂,并将其应用于聚丙烯(PP)。结果表明,新方法合成的磷酸双酚酯盐成核剂的产率明显提高,达到98%。通过亚磷酸双酚酯和羧酸盐复配助剂就地形成的芳基磷酸脂盐具有明显的成核效应,促使PP的结晶温度由111.0℃提高到126.3℃。成核剂的加入使复合材料拉伸和弯曲强度得到不同程度提高,其中拉伸强度提高了9%,弯曲强度提高了20%,但冲击强度下降了20%左右,维卡软化点比纯PP的提高8.5℃。

Diaryl phosphate metal salts were synthesized by a new synthesis method and used as nucleating agents in polypropylene （PP）. The results show the yield of diaryl phosphate metal salts reaches 98 % by new method. The nucleating efficiency of diaryl phosphate metal salts forming in-situ by diaryl phosphite and carboxylate is very distinct. The crystallization temperature of PP increases from 111. 0℃ to 126. 3 ℃ The tensile and flexural strength of PP modified with nucleating agent improves by 9% and 20% respectively,impact strength decreases by 20% , but Vicar temperature increases by 8.5℃ compared with that of PPo