Effect of Polyethylene Glycol in Nanocellulose/PLA Composites
| Autor: | Peerapan Dittanet, Thipjak Na Lampang, Wanasorn Somphol, Paweena Prapainainar, Surapich Loykulnant, Pongdhorn Sae-Oui, Anusorn Seubsai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Poly ethylene glycol
Materials science Nanocomposite Mechanical Engineering technology industry and agriculture macromolecular substances 02 engineering and technology Polyethylene glycol respiratory system 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Nanocellulose chemistry.chemical_compound stomatognathic system chemistry Chemical engineering Mechanics of Materials lipids (amino acids peptides and proteins) General Materials Science 0210 nano-technology |
| Zdroj: | Key Engineering Materials. 821:89-95 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.821.89 |
| Popis: | Poly (lactic acid) or PLA was reinforced by nanocellulose and polyethylene glycol (PEG), which were introduced into PLA matrix from 0 to 3 wt.% to enhance compatibility and strength of the PLA. The nanocellulose was prepared by TEMPO-mediated oxidation from microcrystalline cellulose (MCC) powder and characterized by TEM, AFM, and XRD to reveal rod-like shaped nanocellulose with nanosized dimensions, high aspect ratio and high crystallinity. Films of nanocellulose/PEG/PLA nanocomposites were prepared by solvent casting method to evaluate the mechanical performance. It was found that the addition of PEG in nanocellulose-containing PLA films resulted in an increase in tensile modulus with only 1 wt% of PEG, where higher PEG concentrations negatively impacted the tensile strength. Furthermore, the tensile strength and modulus of nanocellulose/PEG/PLA nanocomposites were higher than the PLA/PEG composites due to the existence of nanocellulose chains. Visual traces of crazing were detailed to describe the deformation mechanism. |
| Databáze: | OpenAIRE |
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