Combination of corn pith fiber and biobased flame retardant: a novel method toward flame retardancy, thermal stability, and mechanical properties of polylactide
Some crop by-products are considered to be promising materials for the development of novel biobased products for industrial applications. The flammability of these alternatives to conventional materials is a constraint to expanded applications. Polylactide (PLA) composites containing a combination...
| Autores: | , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2021 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositório: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglês |
| OAI Identifier: | oai:upcommons.upc.edu:2117/351899 |
| Acesso em linha: | https://hdl.handle.net/2117/351899 https://dx.doi.org/10.3390/polym13101562 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Materials -- Thermal properties Fire testing Biobased material Corn pith fiber Polylactide Flame retardancy Thermal stability Materials -- Propietats tèrmiques Assaigs de comportament davant el foc Àrees temàtiques de la UPC::Edificació::Instal·lacions i acondicionament d'edificis |
| Resumo: | Some crop by-products are considered to be promising materials for the development of novel biobased products for industrial applications. The flammability of these alternatives to conventional materials is a constraint to expanded applications. Polylactide (PLA) composites containing a combination of oxidized corn pith fiber (OCC) and a biobased flame retardant (PA-THAM) have been prepared via an in situ modification method. SEM/EDS, FTIR and TGA were performed to establish that PA-THAM was coated onto the surface of OCC. The mechanical properties, thermal stability and fire behavior of PLA-based biocomposites were investigated. The incorporation of 5 phr PA-THAM imparted biocomposite good interfacial adhesion and increased decomposition temperature at 10% mass loss by 50 °C. The flame retardant properties were also improved, as reflected by an increased LOI value, a UL-94 V-2 rating, reduction of PHRR, and increased formation of char residue. Therefore, the introduction of 5 phr PA-THAM can maintain a good balance between flame retardancy and mechanical properties of this PLA/OCC system. |
|---|