| Autor: |
de Araújo MJG; Graduate Program in Science and Materials Engineering, Federal University of Paraíba, João Pessoa 58051-900, Brazil., Barbosa FC; Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil., Fook MVL; Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil., Silva SML; Department of Materials Engineering, Federal University of Campina Grande, Campina Grande 58429-900, Brazil., Leite IF; Department of Materials Engineering, Federal University of Paraíba, João Pessoa 58051-900, Brazil. |
| Jazyk: |
angličtina |
| Zdroj: |
Materials (Basel, Switzerland) [Materials (Basel)] 2022 Oct 22; Vol. 15 (21). Date of Electronic Publication: 2022 Oct 22. |
| DOI: |
10.3390/ma15217418 |
| Abstrakt: |
In this study, an antimicrobial packaging material was successfully developed with blends of high-density polyethylene (HDPE) and chitosan (CS) made by melt processing. In the different HDPE/CS composites, the CS content effect (up to 40%), and the addition of quaternary ammonium salt functionalized chitosan (CS-CTAB) as an additive were evaluated by X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analyses (TG), tensile strength, scanning electron microscopy (SEM) and antimicrobial activity. When analyzing the effect of the additive in the different HDPE/CS composites, it was observed that the compositions with 10 and 20 %wt of chitosan showed better elongation values (~13% and 10%) as well as a higher decomposition temperature at 20% mass loss (T20) varying from (321-332 °C and 302-312 °C), respectively, in relation to the other compositions, regardless of the type of additive used, it acted as an antimicrobial agent, promoting inhibition of microbial growth against the strains gram-positive and gram-negative used in this work, making the different HDPE/CS composites suitable candidates for use in food packaging. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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