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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | de Moraes, Ana Carolina Mazarin Andrade, Patricia Fernanda de Faria, Andreia Fonseca Simões, Mateus Batista Salomão, Francisco Carlos Carneiro Soares Barros, Eduardo Bedê Gonçalves, Maria do Carmo Alves, Oswaldo Luiz |
| Description | Author Affiliation: de Moraes AC ( Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil. Electronic address: anacmmo@gmail.com.); Andrade PF ( Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil.); de Faria AF ( Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil.); Simões MB ( Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil.); Salomão FC ( Department of Physics, Federal University of Ceará, PO Box 6030, 60455-900 Fortaleza, CE, Brazil.); Barros EB ( Department of Physics, Federal University of Ceará, PO Box 6030, 60455-900 Fortaleza, CE, Brazil.); Gonçalves Mdo C ( Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil.); Alves OL ( Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970 Campinas, SP, Brazil. Electronic address: oalves@iqm.unicamp.br.) |
| Abstract | Graphene oxide (GO) has been considered a promising filler material for building polymeric nanocomposites because of its excellent dispersibility and high surface area. In this work, we present the fabrication and characterization of transparent and ultraviolet (UV) shielding composite films based on GO and cellulose acetate (CA). GO sheets were found to be well-dispersed throughout the CA matrix, providing smooth and homogeneous composite films. Moreover, the GO sheets were completely embedded within the CA matrix and no presence of this nanomaterial was found at the surface. Nevertheless, CAGO composite films offered an improved high energy light-shielding capacity when compared to pristine CA films. Particularly for UVC irradiation, the CAGO film containing 0.50wt% GO displayed a UV-shielding capacity of 57%, combined with 79% optical transparency under visible light. These CAGO composite films can be potentially applied as transparent UV-protective coatings for packing biomedical, pharmaceutical, and food products. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 123 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-06-05 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Cellulose Analogs & Derivatives Graphite Chemistry Nanocomposites Ultraviolet Rays Microscopy, Atomic Force Ultrastructure Oxides Spectroscopy, Fourier Transform Infrared Surface Properties Transition Temperature Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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