Síntese da estrutura metal-orgânica HKUST-1 sobre a superfície de lã

Abstract

The textile finishing can be performed by physical, chemical or biological methods. Among these, the chemical method is used when the required properties cannot be accomplished by any other way. However, this method faces many limitations in interactions between chemical products and textile material, mainly when is related to the durability of the finishing. The use of nanotechnology in the finishing field is increasing and, then, surface modifications using nanostructures has been taking more space in order to improve the treated material performance. Metal-organic frameworks (MOFs) are presented as an example of those nanostructures. The MOFs are highly crystalline solid structures that are composed with organic and inorganic compounds.Those crystalline solids have many applications, such as catalysis, drug delivery and gas storage. This paper aims perform the synthesis of MOFs with copper and trimesic acid directly on the textile surfaces of wool. The synthesis was carried out by the solvothermal method, using a laboratory stove. The developed materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TGA), color analysis and were evaluated after one washing cycle. The results of the characterizations showed the presence of the MOFs over the fabric even after the washing test, indicating that is possible to develop those structures over the wool fabric.