Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production
Abstract Poly(ethylene-co-vinyl acetate)/organoclay (EVA/OC) systems were prepared by melt mixing in a twin-screw extruder. The potential application of the nanocomposites in the production of blow molding films was analyzed by mechanical, thermal, morphological, X-ray diffraction, water vapor perme...
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Academia Brasileira de Ciências
2025-03-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| author | REINALDO Y. MORITA JULIANA R. KLOSS MARIA IZABEL X. SCAPOLAN RONILSON V. BARBOSA ANA LÚCIA N. DA SILVA |
| author_facet | REINALDO Y. MORITA JULIANA R. KLOSS MARIA IZABEL X. SCAPOLAN RONILSON V. BARBOSA ANA LÚCIA N. DA SILVA |
| author_sort | REINALDO Y. MORITA |
| collection | DOAJ |
| description | Abstract Poly(ethylene-co-vinyl acetate)/organoclay (EVA/OC) systems were prepared by melt mixing in a twin-screw extruder. The potential application of the nanocomposites in the production of blow molding films was analyzed by mechanical, thermal, morphological, X-ray diffraction, water vapor permeability and rheological properties. A modified organoclay (OC) with a non-ionic surfactant, free of ammonium salt (Vulgel-AM), and an organoclay modified with cetyltrimethylammonium bromide (Vulgel-CT) were added in EVA matrix (1.5 wt%). The X-ray diffraction (XRD) showed that EVA/Vulgel-AM presented a partially exfoliated morphology. The EVA/Vulgel-AM when compared to EVA/Vulgel-CT system presented higher toughness property, higher thermal stability, a more pronounced water vapor barrier behavior and appropriate balance of viscoelastic in rheological properties. Finally, the results of the analysis performed in this study it is signaled that EVA/Vulgel-AM is a more viable and interesting candidate to produce a stable blow film when compared to EVA/Vulgel-CT. |
| format | Article |
| id | doaj-art-e3340d425b8746ce9fda653638eb41b5 |
| institution | OA Journals |
| issn | 1678-2690 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj-art-e3340d425b8746ce9fda653638eb41b52025-08-20T01:50:42ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902025-03-0197110.1590/0001-3765202520230781Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film productionREINALDO Y. MORITAhttps://orcid.org/0000-0001-7336-0937JULIANA R. KLOSShttps://orcid.org/0000-0002-3632-6219MARIA IZABEL X. SCAPOLANhttps://orcid.org/0000-0002-5569-5271RONILSON V. BARBOSAhttps://orcid.org/0000-0002-5347-6198ANA LÚCIA N. DA SILVAhttps://orcid.org/0000-0002-7668-2576Abstract Poly(ethylene-co-vinyl acetate)/organoclay (EVA/OC) systems were prepared by melt mixing in a twin-screw extruder. The potential application of the nanocomposites in the production of blow molding films was analyzed by mechanical, thermal, morphological, X-ray diffraction, water vapor permeability and rheological properties. A modified organoclay (OC) with a non-ionic surfactant, free of ammonium salt (Vulgel-AM), and an organoclay modified with cetyltrimethylammonium bromide (Vulgel-CT) were added in EVA matrix (1.5 wt%). The X-ray diffraction (XRD) showed that EVA/Vulgel-AM presented a partially exfoliated morphology. The EVA/Vulgel-AM when compared to EVA/Vulgel-CT system presented higher toughness property, higher thermal stability, a more pronounced water vapor barrier behavior and appropriate balance of viscoelastic in rheological properties. Finally, the results of the analysis performed in this study it is signaled that EVA/Vulgel-AM is a more viable and interesting candidate to produce a stable blow film when compared to EVA/Vulgel-CT.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652025000101703&tlng=enPoly(ethylene-co-vinyl acetate)organoclayblown film extrusionmorphologycetyltrimethylammonium bromiderheology |
| spellingShingle | REINALDO Y. MORITA JULIANA R. KLOSS MARIA IZABEL X. SCAPOLAN RONILSON V. BARBOSA ANA LÚCIA N. DA SILVA Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production Anais da Academia Brasileira de Ciências Poly(ethylene-co-vinyl acetate) organoclay blown film extrusion morphology cetyltrimethylammonium bromide rheology |
| title | Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production |
| title_full | Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production |
| title_fullStr | Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production |
| title_full_unstemmed | Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production |
| title_short | Evaluation of using poly(ethylene-co-vinyl acetate)/organoclays nanocomposites in blown film production |
| title_sort | evaluation of using poly ethylene co vinyl acetate organoclays nanocomposites in blown film production |
| topic | Poly(ethylene-co-vinyl acetate) organoclay blown film extrusion morphology cetyltrimethylammonium bromide rheology |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652025000101703&tlng=en |
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