应用化学 ›› 1998, Vol. 0 ›› Issue (6): 86-88.

• 研究论文 • 上一篇    下一篇

淀粉/聚乙烯共混物的降解

于九皋, 黎汉生, 高建平, 林通   

  1. 天津大学化学系 天津300072
  • 收稿日期:1998-03-25 修回日期:1998-09-02 出版日期:1998-12-10 发布日期:1998-12-10

On the Degradation of Starch/Polyethylene Blends

Yu Jiugao, Li Hansheng, Gao Jianping, Lin Tong   

  1. Department of Chemistry, Tianjin University, Tianjin 300072
  • Received:1998-03-25 Revised:1998-09-02 Published:1998-12-10 Online:1998-12-10

摘要: 淀粉和聚乙烯二者极性差别很大,如何提高淀粉/聚乙烯共混物降解塑料中两相的相容性是此项研究的技术关键。采用添加增容剂[1],或进行淀粉疏水改性[2],或对聚乙烯进行亲水改性[3]的办法均取得了一定的进展。本文在提高相容性研究的基础上,又添加油酸和有机铁化合物作为降解助剂,研究降解助剂对淀粉与聚乙烯共混物降解性能的影响.

关键词: 淀粉, 聚乙烯, 共混, 降解

Abstract: The influences of environmental temperature, humidity and oxygen concentration on the mechanical properties, viscosity-average molecular weight, hydroperoxide concentration and micrograph of starch/polyethylene blends have been investigated. The results revealed an acceleration effect of starch on the degradation of polyethylene.

Key words: starch, polyethylene, blend, degradation