Özet
Polylactide (PLA)/cellulose nanocrystal (CNC) nanocomposites with 1, 3, and 5 wt% CNC contents were prepared through (a) solution casting and (b) dilution of solution-casted PLA/CNC masterbatch though melt mixing in a twin-screw extruder. The effect of preparation method on the CNC dispersion quality and hence the final properties of the nanocomposites were studied. A better CNC dispersion within PLA was obtained when using solution casting method, whereas the formation of CNC agglomerates was observed in the melt-processed nanocomposites. The rheological results confirmed that a solid network was formed at the CNC content of around 3 wt% in the solution-casted samples. The PLA crystallization could also be enhanced differently in the presence of CNC nanoparticles through various preparation routes. Moreover, the CNC incorporation noticeably enhanced the storage modulus of PLA beyond its glass transition temperature. The oxygen permeability of PLA was also remarkably reduced with CNC by employing both methods.
| Orijinal dil | İngilizce |
|---|---|
| Sayfa (başlangıç-bitiş) | 4170-4180 |
| Sayfa sayısı | 11 |
| Dergi | Polymer Composites |
| Hacim | 41 |
| Basın numarası | 10 |
| DOI'lar | |
| Yayın durumu | Yayınlandı - 1 Eki 2020 |
Bibliyografik not
Publisher Copyright:© 2020 Society of Plastics Engineers
Finansman
The author would like to acknowledge the financial supports by the Scientific and Technological Research Council of Turkey (TUBITAK) in the content of 1001 project with the project number of 117M238. The authors would also like to sincerely thank Professor Seniha Fatma Guner, our TUBITAK 1001 project consultant, and Professor Metin Hayri Acar for providing their lab space to, respectively, run rheological and DSC experiments. We also thank Professor Kursat Kazmanli and Dr Selim Ertürk for their helps in running the XRD experiments.
| Finansörler | Finansör numarası |
|---|---|
| TUBITAK | 117M238 |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu |