| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 671977 | Particuology | 2015 | 8 Pages |
Abstract
Hyperbranched polyethylenimine (PEI)-functionalized mesoporous silica (MCM@PEI) was synthesized and used to produce poly(vinyl alcohol) (PVA) nanocomposites. The modified nanofiller was characterized with infrared spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption. When compared with pure mesoporous silica (MCM), the MCM@PEI nanoparticles exhibited better dispersion in the PVA matrix. The effects of MCM@PEI on the thermal and flame properties of PVA nanocomposites were also studied. Improvement in the thermal properties was confirmed by enhanced thermal stability and char yield. Incorporation of MCM@PEI in PVA led to a significant drop in the heat release rate and the total heat release.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Meisam Shabanian, Mehdi Khoobi, Farideh Hemati, Hossein Ali Khonakdar, Khalil Faghihi, Udo Wagenknecht, Seyed esmaeil Sadat ebrahimi, Abbas Shafiee,