| Autor: |
Wei Tieng Owi, Ong Hui Lin, Sung Ting Sam, Chin Hua Chia, Sarani Zakaria, Muhammad Safwan Mohaiyiddin, Al Rey VillagraciaGil Nonato Santos, Gil Nonato Santos, Hazizan Md Akil |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
BioResources, Vol 11, Iss 2, Pp 3453-3465 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1930-2126 |
| DOI: |
10.15376/biores.11.2.3453-3465 |
| Popis: |
Microcelluloses (MCs) were chemically isolated from two different biomass sources, empty fruit bunches (EFB) and sugarcane bagasse (SCB). The resulting MCs were compared to the commercially available cellulose (MC-Sigma) that was used as a standard. Structural, crystalline, morphological, and thermal properties of all specimens were characterized and compared by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). FTIR analysis verified that the chemical treatments removed non-cellulosic constituents including hemicelluloses and lignin. XRD patterns revealed the crystallinity increment from 43.1% to 52.1% for MC-EFB and 38.9% to 52.4% for MC-SCB. SEM images demonstrated the fibrillar structure of both MC-EFB and MC-SCB, and their surfaces were smoother compared with MC-Sigma. From the TG curves, MC-EFB provided the highest thermal stability, as it had the highest maximum degradation temperature at 345 °C. DSC results showed only one endothermic peak for all specimens. Taken together, these results reasonably confirmed that the MCs from EFB and SCB are comparable to standard MC-Sigma. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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