5 documents found, page 1 of 1
Novel copolymer for SiO2 nanoparticles dispersion
Gowri, S.; Almeida, Luís de; Amorim, M. T. Pessoa de; Carneiro, Noémia; Souto, A. Pedro; Esteves, M. de FátimaHigh performance polymers exhibiting multifunctional characteristics can be achieved by the introduction of inorganic nanoparticles like SiO2 into the functional polymers. In the present work a copolymer epoxy poly(dimethylacrylamide) was synthesized to disperse the SiO2 nanoparticles. The aim of the work is to develop a new method/process/material for the dispersion of nanoparticles and evaluating the performa...
UV protection of polyamide fabrics with polymeric nanocomposites
Carneiro, Noémia; Souto, A. Pedro; Gowri, S.; Ventura, SandraSun protective textiles are highly important regarding health problems, not only for children, but also for people who spend a lot of time outdoors in their line of work. The present study shows results for UV protection with thin and thick polyamide textile fabrics treated with different polymeric nanocomposites. Tests with different concentrations of ZnO, Al2O3, SiO2 and TiO2 nanoparticles, dispersed in PMMA,...
Durable functionalities in polyamide 6.6 with ZnO-PMMA nanocomposites
Carneiro, Noémia; Souto, A. Pedro; Gowri, S.; Ventura, SandraHydrophobicity and hydrophility functionalities imparted in polyamide 6.6 fabrics were tested aiming their permanency facing conditions of wearable common use as domestic washing. High improvement in functional behavior is obtained for well dispersed ZnO nanoparticles in a polymeric matrix applied in polyamide 6.6 fabrics. UV protection has been assigned as very effective for the PA fabric finished with ZnO-PMM...
Functional finishing of polyamide fabrics using ZnO-PMMA nanocomposites
Gowri, S.; Almeida, Luís de; Amorim, M. T. Pessoa de; Carneiro, Noémia; Souto, A. Pedro; Esteves, M. de Fátima; Kumar, S.Polymer nanocomposites offer possibility of developing a new class of nanofinishing materials for textiles with their own manifold of structure property relationship. Approaches to modify the polymer nanocomposites by various inorganic substances can lead to a huge number of additional functionalities which are increasingly demanded by the textile industries. In the present work, zinc oxide nanoparticles were p...
Polymer nanocomposites for multifunctional finishing of textiles: a review
Gowri, S.; Almeida, Luís de; Amorim, M. T. Pessoa de; Carneiro, Noémia; Souto, A. Pedro; Esteves, M. de FátimaImprovement of existing properties and the creation of new material properties are the most important reasons for the functionalization of textiles. Polymer nanocomposites offer the possibility of developing a new class of nanofinishing materials for textiles with their own manifold of structure property relationship only indirectly related to their components and their micron and macro-scale composite counterp...