DEMİREL GÜLTEKİN Nergis Istanbul Technical University

The Effect of Sepiolite Clay on the Properties of Polyacrylonitrile Composite Nanofibers

Co-authors UÇAR Nuray

Sepiolite clay is a naturally occurring layered fibrous hydrated magnesium silicate with a large specific surface area (more than 200 m2/g) and characterized by a needle-like morphology and it has good mechanical strength and thermal stability. Sepiolite as a kind of porous mineral material has many nanometer level micropores and mesopores, which can play an active role as an additive for composite materials in thermal insulation. Electrospinning is a simple method for the production of micro and nanocomposite fibers. Electrospun nanofibers are used in protective clothing, nanocomposites, membranes, thin films, filtration, etc. In this study, polyacrylonitrile (PAN) nanofibers containing sepiolite needle-like nanoparticles were produced with electrospinning method. PAN polymer solution concentration was fixed at 12 wt% and sepiolite nanoparticle concentration was varied. Electrospinning solutions were prepared with sepiolite nanoparticles concentrations of 0, 1, 3 and 10 % of the mass of the PAN polymer. The effect of the sepiolite nanoparticle concentration on thermal, morphological and mechanical properties of nanofibers were studied.

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