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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (04): 358-362. 上一篇    下一篇

研究论文

聚丙烯中抗氧剂和成核剂同时定性定量分析及实际工艺添加量的确定

张鑫1，王小群*,1，赵臻璐1，李志远1，孙宗花1，夏洁2，周豪2   

  1. (1北京航空航天大学 材料科学与工程学院 北京 100191)
    (2中国石油独山子石化研究院 新疆 833600)
  • 投稿日期:2009-12-24 修回日期:2010-01-21 发布日期:2010-02-28
  • 通讯作者: 王小群 E-mail:wangxiaoqunn@163.com

The Quantitative Analysis and Actually Processing Addition Determination of Antioxidant and Nucleating Agent in PP

Zhang Xin1 Wang Xiaoqun*,1 Zhao Zhenlu1 Li Zhiyuan1 Sun Zonghua1 Xia Jie2 Zhou Hao2   

  1. (1 School of Material Science and Engineering, Beihang University, Beijing 100191, China)
    (2 Dushanzi Petrochemical Research Institute, Petrochina, Xinjiang 833600, China)
  • Received:2009-12-24 Revised:2010-01-21 Published:2010-02-28
  • Contact: xiaoqun wang E-mail:wangxiaoqunn@163.com

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1899

被引次数

2

采用HPLC-UV法对聚丙烯(PP)中抗氧剂1010和168以及成核剂NA11三种添加剂同时进行快速定性、定量分析. 通过对现有的索氏提取器进行改进, 提高了萃取效率; 通过优化洗脱条件, 确保了三个色谱峰的完全分离, 三种添加剂标准曲线相关系数分别为0.9979, 0.9975和0.9975. 建立了上述三种添加剂在PP中剩余量测试值与实际工艺添加量的关系曲线, 并用这些关系曲线结合对剩余添加剂的定量分析结果确定某种PP产品中这三种添加剂的实际工艺添加量. 研究结果表明: 上述关系曲线的相关系数(r)均大于0.95, 采用本文方法确定的某种PP产品中抗氧剂1010、抗氧剂168和成核剂NA11的工艺添加量与实际工艺添加量之间的相对误差分别为－5.46%, －3.00%和－4.27%.

关键词: 抗氧剂, 成核剂, 定量分析, 工艺添加量

The qualitative and quantitative analysis of three additives (antioxidant 1010, antioxidant 168 and nucleating agent NA11) in PP were carried out by HPLC-UV simultaneously. Especially, the soxhlet extractor equipment was improved in order to increase the extract efficiency. Through optimizing elution conditions, three chromatographic peaks were totally separated, and correlation coefficients (r) of calibration curves were 0.9979, 0.9975 and 0.9975, respectively, for antioxidant 1010, antioxidant 168 and nucleating agent NA11. Further, the curves of relationship between testing value of three additives left in PP value with actually processing addition were established. Based on quantitative analysis results and these relationship curves, the amount added actually in process in PP could be estimated. The results showed that the correlation coefficient (r) of the relationship curve was higher than 0.95, and the deviations of estimated actual addition were －5.46%, －3.00% and －4.27%, respectively, for antioxidant 1010, antioxidant 168 and nucleating agent NA11.

Key words: antioxidant, nucleating agent, quantitative analysis, actually processing addition