中华医学超声杂志

应用化学 ›› 1997, Vol. 0 ›› Issue (3): 12-15.

• 研究论文 • 上一篇    下一篇

淀粉接枝丙烯酸乙酯及其增容性

于九皋, 李新蕊   

  1. 天津大学化学系, 天津 300072
  • 收稿日期:1996-10-08 修回日期:1997-01-04 出版日期:1997-06-10 发布日期:1997-06-10

The Starch Grafted with Ethyl Acrylate and Its Compatibility for the Blend System of Starch and Polyethylene

Yu Jiugao, Li Xinrui   

  1. Department of Chemistry, Tianjin University, Tianjin 300072
  • Received:1996-10-08 Revised:1997-01-04 Published:1997-06-10 Online:1997-06-10

PDF

439

被引次数

2

摘要： 研究了在挤出机中采用高温和剪切力的作用直接引发淀粉与丙烯酸乙酯的接枝共聚合反应。讨论了反应条件对接枝反应的影响,研究了接枝物在淀粉与聚乙烯共混物中的增容作用。实验结果表明,高温和剪切力可以引发淀粉与丙烯酸乙酯的接枝共聚合反应。接枝物作为增容剂,可以明显地改善淀粉与聚乙烯共混物的力学性能和流变性能。

关键词: 淀粉, 丙烯酸乙酯, 接枝共聚, 相容性

Abstract: Using the high temperature and shearing stress of the extruder, we synthesized the graft copolymer of starch with ethyl acrylate by a simple dry method. The effects of reaction conditions on graft copolymerization were discussed. Grafted starch used as a compatibilizer for the blend system of starch and polyethylene was further investigated. The results indicated that grafted starch as a compatibilizer can improve the mechanical properties of the blend of starch and polyethylene.

Key words: starch, ethyl acrylate, graft copolymerization, compatibility

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