Mechanical performance, heat transfer and conduction of ultrasonication treated polyaniline bio-based blends
| Autor: | Dalila Shahdan, Sahrim Ahmad, Ruey Shan Chen, Farrah Diyana Zailan, Afiqah Omar, Nur Adilah Abu Hassan |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Scanning electron microscope 020209 energy General Chemical Engineering Sonication 02 engineering and technology Polymer Condensed Matter Physics 01 natural sciences Biodegradable polymer Atomic and Molecular Physics and Optics 010406 physical chemistry 0104 chemical sciences chemistry.chemical_compound Natural rubber chemistry Polylactic acid visual_art Ultimate tensile strength Polyaniline 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium Composite material |
| Zdroj: | International Communications in Heat and Mass Transfer. 117:104742 |
| ISSN: | 0735-1933 |
| DOI: | 10.1016/j.icheatmasstransfer.2020.104742 |
| Popis: | The thermally and electrically conductive biodegradable polymer blends of polylactic acid (PLA), modified natural rubber (mNR) and polyaniline (PANi) were mixed by ultrasonication-assisted melt compounding method. The effects of ultrasonic treatment times from 0.5 to 3.0 h and different PLA-mNR/PANi compositions (99.97/0.03 to 99.89/0.11) were studied. The incorporation of PANi led to the enhancement in mechanical properties of the PLA-mNR samples. The highest tensile property was obtained at the ultrasonic treatment of 1.0 h. An improvement of 17% in the tensile strength was achieved at 99.91/0.09 as the optimum PLA-mNR/PANi composition as compared to neat PLA-mNR. Beyond the optimum loading, the inclusion of PANi retarded the heat transfer which resulted in the reduced thermal stabilities but introduced better heat and electrical conduction to the insulating PLA-mNR matrix. The scanning electron microscopy micrographs for PLA-mNR/PANi showed the good dispersion of PANi within PLA-mNR and strong interaction networks among the polymer components. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect