Bubble electrospinning (BE) is a recently-invented simple needleless concept to produce nanofibres. The bubble electrospinning method is not yet well established and there is a need to study the effects of different parameters on the fibre morphology. In the present work, ethylcellulose (EC) was successfully electrospun from 15% EC solution in toluene:ethanol (60:40) by bubble electrospinning. The effects of different parameters such as solution surface to collector distance and applied voltage on the morphology of bubble electrospun EC nanofibres were studied and are discussed below. Bubble electrospun EC fibres showed an increase in diameter as the distance between solution surface and collector increased. However, when the applied voltage was increased, the EC fibre diameter was initially reduced but then increased. The results are discussed in detail in the paper. FTIR analysis of EC powder, solution and fibres were also studied.
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