Groove-shaped polypropylene/polyester micro/nanofibrous nonwoven with enhanced oil wetting capability for high oil/water separation

Tailoring the softness performance of polyethylene/polypropylene micro‐nanofibrous fabrics for skin contacts

“…Moreover, Figure 3(a) shows that the complex viscosity of the blended PE/PP melts increased with increasing PE mass ratio, at the same shear rate and melt temperature. This result could be attributed to two main reasons: (1) the incompatibility between PP and PE 24 and (2) the continuous phase and the dispersed phase hardly produce entanglements in the high-viscosity PE/PP blend molecularmatrix, and they both exist in the melt with their own characteristics. 22 Figure 3(b) shows that for the blended melt with the same PE mass ratio, the higher the melt temperature, the smaller the shear rate required to stabilize the viscosity.…”

“…19 Adding elastic polymers to create the blend, for example, propylene-based elastomer 20 and thermoplastic polyurethane, 21 can improve the elasticity performance of PP fabrics. Immiscible polymers, for example, polystyrene, 22 polyethylene glycol, 23 and polyester, 24 can improve the distribution of blend fiber diameters. Meanwhile, polyethylene (PE) is a commercial polymer with chemical resistance and low cost and has been reported in melt blending processes for soft-feeling handles.…”

Characterisation of electrospun PS/PU polymer blend fibre mat for oil sorption

“…In addition, the interfibre void spaces between the polymer blend fibres appears less compacted in comparison to the PU1 fibre mat. These are significant observations, as the structure of a porous material is known to play a key role in its hydrophobicity [32,33]. Similarly, there are strong differences in the mat morphology.…”

Recent Developments and Advancements in Graphene-Based Technologies for Oil Spill Cleanup and Oil–Water Separation Processes

“…Recently, a wide variety of advanced and novel absorbent materials possessing oleophilic and hydrophobic surfaces with excellent adsorption performance have been synthesized for the separation and recovery of oil from water. Among such absorbents are fiber sheets [ 25 , 26 , 27 , 28 , 29 ], alumina [ 30 , 31 ], zeolites [ 32 , 33 , 34 ], silica [ 35 ], polypropylene [ 36 , 37 , 38 , 39 ], and polystyrene [ 40 , 41 , 42 , 43 ]. Such sorbents have certain disadvantages that limit their absorption efficiency, including their low sorption capacities, low recovery efficiencies, production of toxic wastes, and poor buoyancy characteristics.…”