Polymer processing and characterization of LLDPE films loaded with α-Tocopherol, quercetin, and their cyclodextrin inclusion complexes

John L. Koontz, Joseph E. Marcy, Sean F. O'Keefe, Susan E. Duncan, Timothy Edward Long, Ronald D. Moffitt

研究成果: Article査読

59 被引用数 (Scopus)

抄録

Natural antioxidant additives were compounded into linear low-density polyethylene (LLDPE) using a twin-screw counter-rotating mixer and compression molded into films. Manufactured LLDPE films contained 2715 mg kg-1 α-tocopherol in its free and β-cyclodextrin complexed form and 1950 mg kg-1 quercetin in its free and γ-cyclodextrin complexed form. Both cyclodextrin complexes were loaded into films at 1.5% by weight. These natural antioxidants were incorporated into LLDPE resins with two different catalyst types, Ziegler-Natta and metallocene. Films were characterized by optical microscopy, oxidation induction time (OIT), oxygen transmission rate, contact angle analysis, and atomic force microscopy (AFM). All antioxidant additives increased the oxidative stability of LLDPE as measured by increased OIT, particularly quercetin. Natural antioxidants and their cyclodextrin inclusion complexes may provide a dual function in packaging to protect the polymer from oxidative degradation during melt processing and to delay the onset of oxidation of the packaged food during storage.

本文言語English
ページ(範囲)2299-2309
ページ数11
ジャーナルJournal of Applied Polymer Science
117
4
DOI
出版ステータスPublished - 2010 8月 15
外部発表はい

ASJC Scopus subject areas

  • 材料化学
  • ポリマーおよびプラスチック
  • 表面、皮膜および薄膜
  • 化学 (全般)

フィンガープリント

「Polymer processing and characterization of LLDPE films loaded with α-Tocopherol, quercetin, and their cyclodextrin inclusion complexes」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル