Biodegradable hybrid PLA composites incorporating coffee husks and mineral fillers

dc.contributor.author	Silva, Riquelme Gomes da
dc.contributor.author	Barboza, Laysa Silva
dc.contributor.author	Silveira, Pedro Henrique Poubel Mendonça da
dc.contributor.author	Conceição, Marceli do Nascimento da
dc.contributor.author	Ribeiro, Roberto Carlos da Conceição
dc.contributor.author	Bastos, Daniele Cruz
dc.date.accessioned	2024-10-23T22:42:26Z
dc.date.available	2024-10-23T22:42:26Z
dc.date.issued	2024-07-17
dc.identifier.citation	SILVA, Riquelme Gomes da et al. Biodegradable hybrid PLA composites incorporating coffee husks and mineral fillers. Polímeros, São Carlos, 2024, v. 34, n. 3, p. 1-12, 16 sept. 2024.	pt_BR
dc.identifier.issn	1678-5169
dc.identifier.uri	https://doi.org/10.1590/0104-1428.20240020	pt_BR
dc.identifier.uri	http://www.sbicafe.ufv.br/handle/123456789/14676
dc.description.abstract	This article details the development of hybrid composites with a PLA matrix filled with coffee husks, potassium feldspar, and Bahia Beige marble. Comprehensive analysis included FTIR, hardness, contact angle, density tests, SEM for microstructural insights, and XRF for optimizing raw material compositions. Also, variance analysis was applied in all results. The study revealed that these biodegradable composites hold promise for sustainable applications. Density variations were noted due to particle compaction, and hardness slightly decreased with coffee husks, attributed to uneven component distribution. Increased hydrophilicity was observed with filler addition. SEM confirmed strong interfacial adhesion, and color consistency was maintained. Notably, coffee husks significantly enhanced the degradation rate of PLA, achieving a 100% higher rate compared to pure PLA. The presence of calcium and potassium minerals offers additional benefits for soil health. The study suggests that thermoformed, multi-layered composite capsules can be fully biodegradable, promoting environmental sustainability in coffee capsule production.	pt_BR
dc.format	pdf	pt_BR
dc.language.iso	en	pt_BR
dc.publisher	Associação Brasileira de Polímeros	pt_BR
dc.relation.ispartofseries	Polímeros;v. 34, n. 3, p. 1-12, 2024;
dc.rights	Open Access	pt_BR
dc.subject	biodegradability	pt_BR
dc.subject	poly(lactic acid)	pt_BR
dc.subject	polymer composite sustentability	pt_BR
dc.subject.classification	Cafeicultura::Resíduos e subprodutos do café	pt_BR
dc.title	Biodegradable hybrid PLA composites incorporating coffee husks and mineral fillers	pt_BR
dc.type	Artigo	pt_BR