1.2.3.2.1.2 Downward stationary spinnerets

1.2.3.2.1.1 Horizontal stationary spinnerets

Nanorods and Nanocomposites

Table 5.

A. 2009

B. 2009

C. 2013

D. 2014

below [47].

Table 6.

240

Zhou et al.

Wang Xin et al.

Zheng et al.

In horizontal stationary spinnerets, polymer jets are formed in horizontal direction. Nanofibers are collected on vertical mounted plates. Some of these are given in

Li et al. Polypropylene

A. In this electrospinning setup, a flat spinneret was connected to the positive point of high-voltage power supply. Polymer solution was pumped by syringe to the hollow cylindrical metallic cavity. There was a hole in the flat end surface where the solution was ejected and formed nanofibers. Nanofibers were collected on the sheet placed

collected on the metal plate placed below the conical wire coil [25].

used to melt polypropylene, and a cylinder collector was used to collect nanofibers [49].

repulsion during nanofiber production [48].

Downward stationary spinnerets methods.

B. In this novel electrospinning setup, a conical wire coil was used as spinneret. PVA solution was filled in this conical wire coil; when high voltage was applied to this cone, jets were produced from the surface of wire coil. Nanofibers were

C. Multi-hole spinneret was used that contained electrode and thick plastic plate. This plastic plate has 19 holes which produce more uniform electric filed during electrospinning process. The polymer solution was placed between the plastic plate and electrode. Polymer was pumped by syringe. It was found that electric field lines play leading role in jet

D. Variable high-voltage power supply was used that is supplied to needleless inner-cone nozzle. Heating device was

bundling/ polymer

Polyethylene oxide was used as polymer with water as a solvent. With four holes, production is 1.68 g/h with flow rate 28 ml/

PVA solution was used, and production of dry nanofibers was found to be 0.86 and 2.75 g/ h at 45 and 70 kV, respectively

Polyethylene oxide solution with water is used in this setup. Flow rate was 9.5 ml/h

was used that melted before electrospinning

h

Year Author Setup Morphology Fiber

In downward stationary spinnerets, nanofibers are made in downward direction. Polymer solution is placed in shower-like spinnerets, polymer jets are stretched downward due to high voltage, and nanofibers are collected on the plate that was placed in the bottom. Some of these types of spinnerets are described in Table 6.
