Article 1 Castor Oil Dimethylformamide 1 Elasticity 1 Electrospinning 1 Kraft lignin 1 Lignin 1 Lubricants 1 Molecular Structure 1 Nanofiber 1 Nanofibers 1 Oil structuring 1 Oleogel 1 Organic Chemicals 1 Particle Size 1 Povidone 1 Rheology 1 Solutions 1 Viscosity 1 castor oil 1 chemical structure 1 chemistry 1 concentration (parameter) 1 elasticity 1 electric conductivity 1 flow kinetics 1 lignin 1 lubricating agent 1 morphology 1 n,n dimethylformamide 1