文献类型：期刊文献

中文题名：固载型亚磷酸酯抗氧剂在聚丙烯中的抗氧性能研究

英文题名：Study on the Antioxidant Properties of Immobilized Phosphite Antioxidants in Polypropylene

作者：李向阳[1,2];公维光[3];孟鑫[4]

机构：[1]山西职业技术学院材料与化工系,山西太原030006;[2]山西化工研究所(有限公司),煤基聚合物改性技术国家地方联合工程实验室,山西晋中030600;[3]华东理工大学运动材料研究所,上海200237;[4]华东理工大学化工学院,上海市多相结构材料化学工程重点实验室,上海200237

年份：2026

卷号：54

期号：3

起止页码：58

中文期刊名：塑料工业

外文期刊名：China Plastics Industry

收录：;北大核心:【北大核心2023】；

语种：中文

中文关键词：聚丙烯;抗氧剂;亚磷酸酯;固载

外文关键词：Polypropylene;Antioxidant;Phosphite;Immobilization

摘要：分别采用旋转流变测试的复数黏度和差示扫描量热仪测试的氧化诱导温度对固载前后的亚磷酸酯抗氧剂的抗氧性能进行评价,以确定亚磷酸酯抗氧剂的固载对其与主抗氧剂1010组成的协同体系综合抗氧性能的影响。结果表明,双2,2′-亚甲基双(4,6-二叔丁基苯酚)亚磷酸酯(BB)在聚硅氧烷上的固载,有效提升了其抗氧剂性,聚硅氧烷固载亚磷酸酯抗氧剂(PPSQ)与抗氧剂1010体现出更优良的协同抗氧作用,更有效保证了聚丙烯熔体黏度和氧化诱导温度的稳定性,进而使得其所稳定的聚丙烯具有较高的氧化降解活化能。此外,抗氧剂PPSQ还具有更为优良的耐水解性能,其与抗氧剂1010所稳定的聚丙烯经过144 h的水解之后,熔体平衡复数黏度下降不足10%,氧化诱导温度下降不到4℃。相对于抗氧剂BB与抗氧剂1010的协同体系,抗氧剂PPSQ和抗氧剂1010的协同体系呈现出更为优良的抗氧性能,即亚磷酸酯抗氧剂的固载有效提升了此类抗氧剂与1010抗氧剂在聚丙烯中的协同抗氧性能。
The antioxidant properties of the phosphite antioxidant before and after immobilization were evaluated using the complex viscosity measured by rotational rheology and the oxidation induced temperature measured by differential scanning calorimetry,respectively.The effects of immobilization of the phosphite antioxidant on the comprehensive antioxidant performances of the synergistic system composed of it and the main antioxidant 1010 were determined.The results show that the immobilization of bis 2,2′-methylenebis(4,6-di-tert-butylphenol)phosphite(BB)on the polydimethylsiloxane effectively improves its antioxidant performances.Therefore,the polydimethylsiloxane immobilized phosphite antioxidant(PPSQ)and antioxidant 1010 exhibit better synergistic antioxidant effects,effectively ensuring the stability of the viscosity and oxidation induction temperature of polypropylene,resulting in the stabilized polypropylene with the high oxidative degradation activation energy.In addition,PPSQ antioxidant also has better hydrolysis resistance.After 144 h of hydrolysis,the melt equilibrium complex viscosity of the polypropylene stabilized by PPSQ antioxidant and antioxidant 1010 decreases by less than 10%and the oxidation induction temperature decreases by less than 4℃.Compared with the system of antioxidant BB and antioxidant 1010,the synergistic system of antioxidant PPSQ and antioxidant 1010 exhibits better antioxidant performances.In an another word,the immobilization of phosphite antioxidant effectively enhances the synergistic antioxidant performances of this type of antioxidant and antioxidant 1010 in polypropylene.