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Evaluation of tensile properties in in-plane auxetic carbon/epoxy and carbon-gl...

Veloso, Cristiano; Mota, Carlos; Cunha, Fernando; Sousa, Jose; Dias, Gustavo; Uribe, Braian Esneider Buitrago; Fangueiro, Raúl

Auxetic laminates, i.e. with a negative Poisson’s ratio (NPR), show great engineering promise, with enhancements in shear resistance, fracture toughness, energy absorption, and delamination and damage extension limitation. This study focuses on the tensile properties of in-plane (IP) NPR fibre-reinforced polymer (FRP) laminates, namely carbon/epoxy (C/E) and carbon-glass/epoxy (C-G/E) laminates, with lay-up seq...


The development of technical yarns containing recycled textile fibres and natur...

Azevedo, Tiago Jorge Mendonça Pinto; Silva, Ana Catarina; Brás, Duarte Rodrigues; Guimarães, Renato Filipe Costa Rodrigues; Ferreira, Diana P.

The textile industry is one of the most polluting sectors globally. In 2023, the global production and consumption of textiles reached approximately 100 million tonnes, with most of these textiles being disposed of in landfills or incinerated. In response to the increasingly demanding EU regulations, the mitigation and valorisation of textile industry waste has become imperative. Recycling technologies can be r...


Production of nonwoven structures from novel natural fibers: innovation and sus...

Marinho, Elina Margarida Ribeiro; Araújo, Joana Carolina Carvalho; Chaves, Diego Morais; Azevedo, Tiago Jorge Mendonça Pinto; Alves, Diana Isabel Sousa


Natural fibers and nanomaterials: developing multifunctional textiles for perso...

Araújo, Joana Carolina Carvalho; Fangueiro, Raúl; Ferreira, Diana P.


Innovative natural fibers from leaves and stems: Explorinf cordyline australis,...

Ferreira, Diana P.; Alves, Diana Isabel Sousa; Chaves, Diego Morais; Marinho, Elina Margarida Ribeiro; Araújo, Joana Carolina Carvalho


Functionalization of 3D-printed gyroid structures with active agents for enhanc...

Pinto, Ângela; Moreira, Maria João; Gonçalves, Afonso; Rua, Ricardo F.; Arruda, Luisa Mendes; Gomes, Fernanda; Antunes, Joana; Bessa, João

The textile industry is a major consumer of water, contributing significantly to global water pollution due to the discharge of untreated wastewater containing dyes and chemicals. Consequently, water contamination in this sector is a pressing issue that demands immediate attention. Hence, the present studies alternative filtration solutions using strategically designed gyroid structures for Plate and Frame filt...


The influence of particle size on mechanical and thermal properties of 100% rec...

Guimarães, Renato Filipe Costa Rodrigues; Alves, Diana Isabel Sousa; Fangueiro, Raúl; Ferreira, Diana P.

The footwear industry is one of the most relevant sectors of the global industry. More than 23 billion pairs of shoes are produced annually, which represents a footwear consumption of 2.7 kg per person annually in Europe. Many materials used in the manufacture of shoes, such as EVA (ethylene vinyl acetate), plastics, leather, and rubber, are non-biodegradable and can take between 40 and 1000 years to decompose ...


Algae-powered innovation: A critical review of sustainable textile dyeing and f...

Rocha, Verónica; Ferreira, Diana; Fangueiro, Raúl; Costa, Sofia; Pontes, Vasco Filipe Ferreira

The textile industry is under increasing scrutiny for its environmental impact, standing out as one of the largest contributors to pollution. In response, pursuing sustainable production practices, through the adoption of eco-friendly materials and sustainable processes, is essential for shaping a more sustainable future. Marine algae have emerged as promising natural alternatives for textile dyeing and functio...


Finishing of natural-based textiles using microalgae

Rocha, Verónica Patrícia Moreira; Pontes, Vasco Filipe Ferreira; Böttcher, Rita Barros; Costa, Sofia Maria Soares; Fangueiro, Raúl; Ferreira, Diana P.

[Excert] Introduction: The application of natural-based textiles combined with algae-based solutions represents a promising and sustainable strategy. Marine algae pose promising potential as natural alternatives for textile dyeing and functionalization, contributing to the development of more sustainable textile solutions. Microalgae are a sustainable and versatile source of valuable bioactive compounds that ha...


An innovative solution for post-consumer footwear waste: Nonwoven fibrous struc...

Alves, Diana Isabel Sousa; Guimarães, Renato Filipe Costa Rodrigues; Costa, Sofia Maria Soares; Fernandes, Nuno Alexandre Tavares Campos

With 23.4 billion pairs made and 22 billion discarded in 2023, post-consumer footwear waste is a major environmental challenge, demanding a shift toward circular economy practices. In this work, post-consumer footwear waste is repurposed into thermal/acoustic insulation materials for building construction, producing four needle-punched nonwovens (two of them compressed) composed of a post-consumer leather (30%)...


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