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Bio-high density polyethylene films embedded with organoclay and zinc pyrithione

Polímeros, 2024, Vol.34 (1)

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1678-5169 ;EISSN: 1678-5169 ;DOI: 10.1590/0104-1428.20230100

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  • Title:
    Bio-high density polyethylene films embedded with organoclay and zinc pyrithione
  • Author: Mesquita, Priscylla Jordânia Pereira de ; Braz, Cristiano José de Farias ; Alves, Tatianny Soares ; Barbosa, Renata
  • Subjects: cloisite 20a ; flat films ; microbial activity ; POLYMER SCIENCE
  • Is Part Of: Polímeros, 2024, Vol.34 (1)
  • Description: Abstract Bio-high density polyethylene (BHDPE) films with organoclay and antimicrobial additives (zinc pyrithione) were evaluated. The composites were prepared in a single-screw extruder using the melt intercalation technique, and the films were obtained by flat extrusion. The diffractograms indicated the formation of an intercalated nanocomposite (BHDPE/6 wt% of clay). Infrared spectra suggested that the polymer predominates over the antimicrobial agent bands. Thermal stability was slightly reduced by up to 3°C. The clay and antimicrobial agent reduced the melting point and crystallinity of BHDPE by up to 12 °C and 13.3%, respectively. In addition, the presence of clay and antimicrobial agent significantly (p < 0.05) affected all mechanical properties. Proliferation of Staphylococcus aureus demonstrated that both evaluated additives did not significantly (p > 0.05) inhibit microbial growth. The results emphasize a promising application of the films for packaging that does not require antimicrobial control, with films highlighted by 6 wt% of clay.
  • Publisher: Associação Brasileira de Polímeros
  • Language: Portuguese;English
  • Identifier: ISSN: 1678-5169
    EISSN: 1678-5169
    DOI: 10.1590/0104-1428.20230100
  • Source: DOAJ Directory of Open Access Journals
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