Polyamide 12 Filled with Cross-Linked Polyethylene Waste: Processing, Compatibilization, and Properties

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dc.contributor.advisorOrcidhttps://orcid.org/0000-0002-2536-5183
dc.contributor.authorMORAES, W. G. B.
dc.contributor.authorBONSE, B. C
dc.date.accessioned2023-08-01T06:03:08Z
dc.date.available2023-08-01T06:03:08Z
dc.date.issued2023-06-05
dc.description.abstract© 2023 Universidade Federal de Sao Carlos. All rights reserved.Cross-linked polyethylene (XLPE) is primarily used as a coating and insulator for electrical wires and cables. The cross-links render recycling through remelting unfeasible, and XLPE waste is usually incinerated or sent to landfills. Previous investigations showed that XLPE increased the impact strength of commodity thermoplastics. Hence, incorporating XLPE in polyamide 12, an engineering thermoplastic, was studied using maleic anhydride grafted polyethylene (PE-g-MA). Formulations were prepared using a co-rotating twin-screw extruder containing 20 wt% XLPE with 0, 2, 4, and 8 wt% compatibilizer. Test specimens were injection-molded. DSC results showed that adding XLPE and compatibilizer reduced PA12 crystallinity but affected little melt and crystallization temperatures. Morphological analyses revealed poor adhesion between polyamide 12 and XLPE, which improved when adding PE-g-MA. The lack of adhesion when XLPE is added strongly reduces the mechanical properties, except for impact strength, which increased by ca.120% compared to the formulation without XLPE; while using 4 wt% compatibilizer this increase was ca. 140%. When adding PE-g-MA as a compatibilizer, some recovery was achieved in tensile strength and strain at break, and impact strength increased furthermore. Flexure and HDT tests showed a decrease in stiffness after adding XLPE. Stiffness was further reduced in compositions containing compatibilizer.
dc.description.volume26
dc.identifier.citationMORAES, W. G. B.; BONSE, B. C. Polyamide 12 filled with cross-linked polyethylene waste: processing, compatibilization, and properties. Materials Research, v. 26, jun. 2023.
dc.identifier.doi10.1590/1980-5373-MR-2023-0031
dc.identifier.issn1980-5373
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4867
dc.relation.ispartofMaterials Research
dc.rightsAcesso Aberto
dc.rights.licenseCreative Commons "Este é um artigo publicado em acesso aberto sob uma licença" Creative commons (CC BY 4.0). Fonte: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85165154327&origin=inward. Acesso em : 14 agosto 2023.
dc.subject.otherlanguageCompatibilization
dc.subject.otherlanguagePolyamide 12
dc.subject.otherlanguageReuse
dc.subject.otherlanguageWaste
dc.subject.otherlanguageXLPE
dc.titlePolyamide 12 Filled with Cross-Linked Polyethylene Waste: Processing, Compatibilization, and Properties
dc.typeArtigo
fei.scopus.citations0
fei.scopus.eid2-s2.0-85165154327
fei.scopus.subjectCrosslinked polyethylene
fei.scopus.subjectElectrical cables
fei.scopus.subjectElectrical wires
fei.scopus.subjectPoly-amide 12
fei.scopus.subjectPolyethylene wastes
fei.scopus.subjectProperty
fei.scopus.subjectReuse
fei.scopus.subjectWaste processing
fei.scopus.subjectWires and cables
fei.scopus.subjectXLPE
fei.scopus.updated2024-07-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85165154327&origin=inward
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