2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

Partnering Events:

TechConnect Summit
Clean Technology 2008

Novel Nanostructured High Performance Elastomeric Filaments

M. Joshi, B.L. Deopura, G.V. Raghunath Reddy
Indian Institute of Technology, IN

Keywords:
nanocomposite fibers, elastomeric fiber, polyurethane- nanoclay composite fiber

Abstract:
Polyurethane (popularly known as Spandex/ Lycra) as a fiber is largely employed in stretch garments, because of its excellent elastic recovery and high extensibility. However, these fibers also have some disadvantages, such as low thermal stability, low weatherability, low modulus, susceptibility to chlorine and hypochlorite attack,dyeability problems and tackiness. The incorporation of organophilic nanoclays, commonly montmorillonite into fiber forming polymers has the potential of modifying the fibre and textile performance. The approach we have tried, to overcome some of these limitations of Polyurethane fibers is to incorporate layered silicate nanoclay to make a PU/clay nanocomposite fiber. These novel elastomeric nanocomposite fibre have superior properties in terms of dyeability, weathering resistance, thermal stability, tensile properties and reduced tackiness. The issues and challenges in nanocomposite fibre research with an overview of the work done by our group on other clay-based nanocomposite fibres will also be briefly discussed.


Nanotech 2008 Conference Program Abstract