| Journal: | Polimeros (Sao Carlos) |
| Database: | PERIÓDICA |
| System number: | 000314219 |
| ISSN: | 1678-5169 |
| Authors: | Belgacem, Mohamed Naceur1 Gandini, Alessandro2 |
| Institutions: | 1Ecole Francaise de Papeterie et des Industries Graphiques, Grenoble, Isere. Francia 2Universidade de Sao Paulo, Instituto de Quimica de Sao Carlos, Sao Carlos, Sao Paulo. Brasil |
| Year: | 2005 |
| Season: | Abr-Jun |
| Volumen: | 15 |
| Number: | 2 |
| Pages: | 114-121 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Several approaches to the modification of cellulose fibres are described, namely: (i) physical treatments such as corona or plasma treatments under different atmospheres; (ii) grafting with hydrophobic molecules using well-known sizing compounds; (iii) grafting with bi-functional molecules, leaving one of the functions available for further exploitation; and (iv) grafting with organometallic compounds. The modified surfaces were characterized by elemental analysis, contact angle measurements, inverse gas chromatography, X-ray photoelectron and infrared spectroscopy, wettability, etc. These different tools provided clear-cut evidence of the occurrence of chemical reactions between the grafting agent used and the hydroxy functions of the cellulose surface, as well as of the existence of covalent bonding in the ensuing composite materials between the matrix and the fibres through the use of doubly reactive coupling agents |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería química, Celulosa, Fibras, Tratamiento de superficies, Injertado químico |
| Keyword: | Engineering, Chemical engineering, Cellulose, Fibers, Surface treatment, Chemical grafting |
| Full text: | Texto completo (Ver HTML) |
