Mechanical Performance and Transparency of Nanocellulose Reinforced Polymer Nanocomposites

被引：96

作者：

Boufi, Sami ^{[1
]}

Kaddami, Hamid ^{[3
]}

Dufresne, Alain ^{[2
]}

机构：

[1] Univ Sfax, Fac Sci Sfax, LMSE, Sfax 3018, Tunisia

[2] Grenoble Inst Technol, Int Sch Paper Print Media & Biomat Pagora, F-38402 St Martin Dheres, France

[3] Cadi Ayyad Univ, Fac Sci & Technol Marrakesh, Lab Chim Organometall & Macromol Mat Composites, Marrakech, Morocco

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2014年 / 299卷 / 05期

关键词：

mechanical properties; nanocellulose; nanocomposites; optical properties; transparency; CELLULOSE; COMPOSITES; WHISKERS; ALPHA;

D O I：

10.1002/mame.201300232

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cellulosic nanofibers in the form of nanofibrillated cellulose (NFC) and cellulose nanocrystals (CNCs) have been prepared from alfa and rachis of date palm tree. Nanocomposites were prepared by casting/evaporation from these materials using an acrylic polymer in the form of latex as the matrix. Dynamic mechanical properties of the nanocomposites were investigated and the rubbery modulus was found to depend mainly on the aspect ratio of the cellulosic nanoparticles. Higher aspect ratio resulted in higher reinforcing capability. However, surprisingly the transparency of the films decreased for a given nanofiller content when the diameter of the nanoparticle decreased. Percolation of the nanofiller was suggested as being responsible for these two observations.

引用

页码：560 / 568

页数：9

共 27 条

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