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Journal of Materials Science

, Volume 40, Issue 14, pp 3607–3614 | Cite as

Isocyanate as a compatibilizing agent on the properties of highly crystalline cellulose/polypropylene composites

  • Wulin Qiu
  • Farao Zhang
  • T. Endo
  • T. Hirotsu
Article

Abstract

Composites of a highly crystalline cellulosic microfibres with polypropylene (PP) as well as with maleic anhydride grafted polypropylene (MAPP) were prepared by using 1,6-diisocyanatohexane (DIC) as a compatibilizing agent, their mechanical properties, morphologies, and thermal properties were investigated. Results show that the tensile strength and young’s modulus of the composites improved intensively by using DIC. The enhancement is proposed to be due to stronger interfacial adhesion caused by the reduction of the polarity and hydrophilicity of cellulose fiber in PP-based composites, while much more chemically bound MAPP chains on cellulose fiber in MAPP-based composites. A maximum on tensile properties of the composite can be obtained by optimizing of the DIC content. Scanning electron microscopy (SEM) indicates that the interfacial adhesion between cellulose fibers and PP or MAPP matrix was improved in DIC coupled composites. Furthermore, DIC yields also some effects on thermal dynamic mechanical properties, as well as melting and crystallization behavior of the composites.

Keywords

Tensile Strength Polypropylene Anhydride Tensile Property Isocyanate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  1. 1.National Institute of Advanced Industrial Science and Technology (AIST)TakamatsuJapan
  2. 2.Department of ChemistryThe University of TennesseeKnoxvilleUSA

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