中国塑料 ›› 2008, Vol. 22 ›› Issue (08): 68-73 .DOI: 10.19491/j.issn.1001-9278.2008.08.015

• 加工与应用 • 上一篇    下一篇

稀土复合光敏剂在可焚烧可降解聚乙烯中的应用研究

肖荔人
  

  1. 福建师范大学化学与材料学院,福建省改性塑料技术开发基地,福建福州350007
  • 收稿日期:2008-04-23 修回日期:1900-01-01 出版日期:2008-08-26 发布日期:2008-08-26

Application of Rare Rarth Compound Photosensitizer in Incinerable and Degradable PE

XIAO Li一ren   

  1. College of Chemistry and Materials Science>Fujian Normal University, The Institute of Fujian Modified Plastic Research and Development Technology, Fuzhou 350007, China
  • Received:2008-04-23 Revised:1900-01-01 Online:2008-08-26 Published:2008-08-26
  • Contact: XIAO Li一ren

摘要: 采用人工加速老化实验箱、户外曝晒、自然环境土壤填埋等方法对含稀土复合光敏剂、碳酸钙和生物活性剂的不同配方的聚乙烯(PE)薄膜进行了老化降解实验,通过扫描电镜、热重红外联用仪、乌式薪度计等进行了分析表征。结果表明,稀土复合光敏剂可促进PE薄膜光诱导后避光继续氧化降解,可焚烧可降解PE薄膜具有光降解、生物降解、可焚烧等可环境消纳功能。

关键词: 稀土复合光敏剂, 可焚烧, 可降解, 聚乙烯薄膜, 配方设计, 避光氧化降解

Abstract: The experimental methods such as artificial accelerated weathering, outdoor exposure, andlandfill in natural soil were conducted to test the aging and degradation properties of PE film containingrarer earth photosensitizer, CaC03,and a biologically activating agent. Characterizations with SEM,
TG-IR,and Ubbclhode viscometer showed that the rare-earth photosensitizer promoted the light-induced oxidative degradation of the PE film. The incinerable and degradable PE film possessed thecnvi ronmcntal-,photo-,and biological-degradability.

Key words: rare earth compound photosensitizer, incineration, degradability, polyethylene film, formula design, oxidative degradation in darkness