During the 2009 FINAWorld Aquatics Championships high-tech swimsuitswere used to add buoyancy, stability, speed and endurance. The design of a material must meet several requirements. In particular, it is of crucial importance the in-depth investigation of the chemical and physical characteristics of the material itself. Data relating to the mobility of water molecules adsorbed by polymer network is a key element in view of properties in understanding the material since they are related to inter-relationship between the fluid medium and macromolecules. In the presentwork, thewater in interactionwith the polymer network of fabrics for competition swimsuit has been studied by TimeDomainNMR(TDNMR) in order to better understand the molecularmotions of polymer chains and solvent molecules inside the structure. Commercial materials, consisting of polyamide and elastane in different ratios, have been examined by NMR relaxometry. Results showed the presence of several types of water, each one characterized by its mobility. Using qualitative and quantitative analyses of NMR, data have been evaluated on the mechanical characteristics of the examined materials. The developed methodology in this paper is a general approach that opens up new perspectives for the study of swim wear fabric
Study of interaction of water with advanced materials for swimming pool sportswear by NMR spectroscopy
Giampaoli S;Magini V;Romano Spica V;
2014-01-01
Abstract
During the 2009 FINAWorld Aquatics Championships high-tech swimsuitswere used to add buoyancy, stability, speed and endurance. The design of a material must meet several requirements. In particular, it is of crucial importance the in-depth investigation of the chemical and physical characteristics of the material itself. Data relating to the mobility of water molecules adsorbed by polymer network is a key element in view of properties in understanding the material since they are related to inter-relationship between the fluid medium and macromolecules. In the presentwork, thewater in interactionwith the polymer network of fabrics for competition swimsuit has been studied by TimeDomainNMR(TDNMR) in order to better understand the molecularmotions of polymer chains and solvent molecules inside the structure. Commercial materials, consisting of polyamide and elastane in different ratios, have been examined by NMR relaxometry. Results showed the presence of several types of water, each one characterized by its mobility. Using qualitative and quantitative analyses of NMR, data have been evaluated on the mechanical characteristics of the examined materials. The developed methodology in this paper is a general approach that opens up new perspectives for the study of swim wear fabricI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
