Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/52588
Título: | Green synthesis of novel biocomposites from treated cellulosic fibers and recycled bio-plastic polylactic acid |
Autor(es): | Laadila, Mohamed Amine Hegde, Krishnamoorthy Rouissi, Tarek Brar, Satinder Kaur Galvez, Rosa Sorelli, Luca Cheikh, R. B. Paiva, M. C. Abokitse, Kofi |
Palavras-chave: | Biocomposite Cellulosic fiber Microwave treatment Enzymatic treatment Mechanical test Polylactic acid |
Data: | 2017 |
Editora: | Elsevier 1 |
Revista: | Journal of Cleaner Production |
Resumo(s): | This study investigated mechanical properties of biocomposites developed from recycled polylactic acid (PLA) from packaging industry and treated cellulosic fibers from pulp and paper solid waste. Microwave and enzymatic treatments were used for extraction and surface modification of hydrophilic cellulosic fibers. Enzymatic treatment was specifically performed for activation of hydroxyl groups and improvement of adhesion between matrix and fibers including controlling the length of cellulosic fibers with size reduction of around 50% (142 and 127 mm for primary and mixed biosolids, respectively) as compared to microwave treatment. Microwave treatment produced cellulosic fibers of 293 and 341 mm, for primary and mixed biosolids, respectively. Mechanical properties of biocomposites with 2% (w/w) of treated cellulosic fibers (Young's Modulus 887.83 MPa with tensile strain at breakpoint of 7.22%, tensile stress at yield 41.35 MPa) was enhanced in comparison to the recycled PLA (Young's Modulus 644.47 ± 30.086 MPa with tensile strain at breakpoint of 6.01 ± 0.83%, tensile stress at yield of 29.49 ± 3.64 MPa). Scanning electron microscopy revealed size reduction of cellulosic fibers. X-ray diffraction and Fourier transform infrared spectroscopy confirmed strong mechanical properties of novel biocomposites. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/52588 |
DOI: | 10.1016/j.jclepro.2017.06.235 |
ISSN: | 0959-6526 |
e-ISSN: | 1879-1786 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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J Cleaner Production _2017.pdf | 2,71 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons