Show simple item record

dc.contributor.advisor Madkour, Tarek Moustafa, Sara 2016-05-23T08:24:04Z 2017-05-23T22:00:15Z Spring 2015 en_US 2016-05-23
dc.description.abstract The discovery of biopolymers, several years ago have received great interest as biodegradable-biocompatible material for several applications. Cellulose acetate, poly (lactic acid) and polyurethane, are widely employed biopolymers owing to their interesting characteristics. However, CA and PLA exhibit poor mechanical properties. Nanoreinforcement is incorporated into CA/PLA and CA/PU matrices in order to overcome their brittle nature and to improve their properties. This research focused studying the effect of blending PLA and PU with CA at different ratios to form new CA/PLA and CA/PU blend using solvent casting method. The second aspect of this study is studying the incorporation of nanoreinforcement material, functionalized graphene nanoplatelets, at different ratios to form new CA/PLA/0.5wt%GNPS-COOH and CA/PU/0.5wt%GNPS-COOH nanocomposites using solvent casting method. All prepared samples were investigated through stress- strain measurements, FT-IR, DSC, TGA, SEM and dry thermal degradation. GNPS- COOH nanocomposites exhibited the best mechanical behavior for all samples. TGA analysis revealed a slight improvement in the thermal stability. DSC analysis showed no effect on thermal stability. SEM showed uniform distribution of the nanofiller in the matrices. The biodegradation of the nanocomposites when placed in an oven at 100C investigated and it was observed that complete degradation occur at day 14. en_US
dc.format.extent 77 p. en_US
dc.format.medium theses en_US
dc.language.iso en en_US
dc.rights Author retains all rights with regard to copyright. en
dc.subject Polymers, nanocomposites, en_US
dc.subject.lcsh Thesis (M.S.)--American University in Cairo en_US
dc.title Development and characterization of nnvironmentally friendly high performance polymeric nanocomposite blends of Cellulose Acetate, Poly(Lactic acid) and Polyurethane en_US
dc.type Text en_US
dc.subject.discipline Nanotechnology en_US
dc.rights.access This item is restricted for 1 year from the date issued en_US
dc.contributor.department American University in Cairo. Dept. of Chemistry en_US
dc.description.irb American University in Cairo Institutional Review Board approval is not necessary for this item, since the research is not concerned with living human beings or bodily tissue samples. en_US
dc.contributor.committeeMember Zikry, Amina
dc.contributor.committeeMember El Gendy, Ahmed
dc.contributor.committeeMember El Sayed, Mayyada

Files in this item


This item appears in the following Collection(s)

  • Theses and Dissertations [1841]
    This collection includes theses and dissertations authored by American University in Cairo graduate students.

Show simple item record