There are a number of types of electrospinning machines. Some machines can be divided into two groups, High-voltage electrospinning and Melt electrospinning. Listed below are the features and advantages of each machine. This article will explain what these two categories are, as well as what these machines can do for you. Once you've mastered one type, you're ready to find the perfect machine for your research.
High-voltage electrospinning
A high-voltage nanofiber electrospinning device is a tool for the production of nanofibers. It utilizes an electrical force to draw charged threads from a polymer solution. This technique is similar to electrospraying and conventional solution dry spinning, but does not require high temperatures or coagulation chemistry. Moreover, this process is well-suited for the production of large molecules, such as polyvinyl pyrrolidone (PVP) and polyethylene. The process of electrospinning from a molten precursor guarantees no solvent is carried over to the final product.
To perform the process of creating ultra-fine fibers, the machine needs a reliable high-voltage power supply. The process relies on an intense electric field that is generated between the sample and the grounded collector assembly. LabMate is an excellent benchtop power supply with a front-panel interface that makes controlling the high-voltage output easy. It can produce up to 10kV with a capacity of 2mA.
Melt electrospinning
The MES machine is a new invention that was developed by scientists to produce high-quality patterned nanofibers. The process does not require high-voltage electricity, making it highly portable. Moreover, MES can be used to prepare regular patterned fibers without having to use organic solvents. This invention has several advantages:
The device uses an electrical field to stretch the melt polymer S2. The applied voltage reduces the diameter of the polymer jet and increases the stretching force. This increases the production rate. In addition, a higher applied voltage increases the probability of partial discharge, which is bad for the production of nanofibers. But the high-voltage machine can also increase the production of nanofibers with smaller diameters. It is also possible to increase the voltage of the machine to achieve high-quality fibers.
The melting temperature of the polymer melt is high enough to cause electrospinning. The temperature profile of the melt electrospinning setup was obtained using thermal images. The fibres were then examined by scanning electron microscopy (SEM) using an SCD50 sputter coater. The images were taken at 10 kV. The diameter of the fibres was measured using Image ProPlus 4.5 software. The intensity of the electric field was calculated using Comsol Multiphysics 3.5a.
Coaxial electrospinning
The Coaxial nanofiber electrospinning machine is one of the latest advances in the field of materials science. This machine is capable of producing hollow tubes that are composed of multi-channel fibers. In addition to producing nanofibers, this machine is also capable of making hollow tubes of other materials, including composites. Coaxial nanofibers are useful for the manufacture of composites. They can also be used for the production of bio-based materials.
The Coaxial nanofiber electrospinning machine has a rotating mandrel assembly and features an independent PID controller for precise temperature regulation. The HOLMARC Fume Hood is designed with a transparent front door shield and transparent side walls for clear visibility of the nanofibers. The halogen light illuminates the nanofibers as they make their way to their target. Its hood can be easily cleaned and features an automatic temperature control.
Fiber drawing
A nanofiber electrospinning machine is a device that uses a charge to spin fibers. Fibers formed in this process approach their theoretical maximum strength. It is a promising technique for high-performance composite materials. There are several factors that influence the performance of this machine. Below are some of them:
The syringe pump and needle are basic electrospinning components. The needle is inserted into the polymer solution. The syringe pump pushes the polymer solution into the needle's tip. The sheath fluid acts as a carrier for the inner fluid. Immiscible solutions form a shell structure while miscible solutions have distinct phases. A more advanced setup uses a triaxial or quadaxial spinneret for multiple solutions.
Unlike traditional spinning machines, a nanofiber electrospinning machine for fiber drawing can transition from large-area to high-precision near-field applications. It can produce aligned fibers, 3-D microstructures, and multi-layered thin films. It is also designed for use with polyvinyl alcohol, which is often used in food research. In addition to large-area electrospinning, it can also be used for the fabrication of fibrous membranes.
