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Comparison of zinc oxide nanoparticle integration into non-woven fabrics using ...
Ferreira, Tânia; Vale, Ana Catarina; Pinto, Alexandra C.; Costa, Rita V.; Pais, Vânia; Sousa, Diana; Gomes, Fernanda Isabel Antunes; Pinto, GraçaThe development of advanced facemasks stands out as a paramount priority in enhancing healthcare preparedness. In this work, different polypropylene non-woven fabrics (NWF) were characterised regarding their structural, physicochemical and comfort-related properties. The selected NWF for the intermediate layer was functionalised with zinc oxide nanoparticles (ZnO NPs) 0.3 and 1.2wt% using three different method...
Low-velocity impact response of auxetic seamless knits combined with non-newton...
Pais, Vânia; Silva, Pedro; Bessa, João; Dias, Hernâni; Duarte, Maria Helena; Cunha, Fernando; Fangueiro, RaúlLow-velocity impact can cause serious damage to the person or structure that is hit. The development of barriers that can absorb the energy of the impact and, therefore, protect the other side of the impact is the ideal solution for the pointed situation. Auxetic materials and shear thickening fluids are two types of technologies that have great capabilities to absorb high levels of energy when an impact happen...
Influence of the addition of fibers in different phases of the spinning process...
Pais, Vânia; Navarro, Miguel; Silva, Pedro; Guise, Catarina; Martins, Rui; Fangueiro, Raúl