Polymers Textiles

Applied methodologies in polymer research and technology by Abbas Hamrang, Devrim Balkose

By Abbas Hamrang, Devrim Balkose

This publication covers a vast diversity of polymeric fabrics and offers execs and researchers in polymer technological know-how and expertise with a unmarried, finished e-book summarizing all points serious about the practical fabrics creation chain.

This quantity offers the newest advancements and traits in complicated polymer fabrics and buildings. It discusses the advancements of complicated polymers and respective instruments to signify and are expecting the fabric homes and behaviour. This publication has a huge position in advancing polymer fabrics in macro and nanoscale. Its goal is to supply unique, theoretical, and significant experimental effects that use non-routine methodologies. it's also chapters on novel functions of extra standard experimental suggestions and analyses of composite difficulties that point out the necessity for brand new experimental approaches.

This new book:

• presents a set of articles that spotlight a few vital parts of present curiosity in key polymeric fabrics and technology

• offers an up to date and thorough exposition of the current cutting-edge of key polymeric fabrics and technology

• Describes the kinds of strategies now on hand to the engineers and technicians and discusses their services, barriers, and applications

• presents a stability among fabrics technological know-how and chemical points, uncomplicated and utilized research

• makes a speciality of subject matters with extra complicated methods

• Emphasizes particular mathematical improvement and real experimental details

• Explains amendment equipment for altering of alternative fabrics properties

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In the polymer solution, a force is induced due to mutual charge repulsion that is directly opposite to the surface tension of the polymer solution. ” [50, 64]. The electric potential is increased to overcome the surface tension forces to cause the formation of a jet, ejects from the tip of the Taylor cone. Due to elongation and solvent evaporation, charged jet instable and gradually thins in air primarily [62, 65–67]. The charged jet forms randomly oriented nanofibers that can be collected on a stationary or rotating grounded metallic collector [50].

In this chapter, we will introduce electrospinning as a potential technology for use as a platform for multifunctional, hierarchically organized nanostructures. Electrospinning is a method of producing superfine fibers with diameters ranging from 10 nm to 100 nm. Electrospinning occurs when the electrical forces at the surface of a polymer solution overcome the surface tension and cause an electrically charged jet of polymer solution to be ejected. 3. The electrically charged jet undergoes a series of electrically induced instabilities during its passage to the collection surface, which results in complicated stretching and looping of the jet [50, 60].

A) Polymer solution parameters (1) Molecular weight and solution viscosity The higher the molecular weight of the polymer increases molecular entanglement in the solution, the higher the increase in viscosity. The electrospun jet eject with high viscosity during it is stretched to a collector electrode leading to formation of continuous fiber with higher diameter, but very high viscosity makes difficult to pump the solution and also lead to the drying of the solution at the needle tip. As a very low viscosity lead in bead formation in the resultant electrospun fiber; therefore, the molecular weight and viscosity should be acceptable to form nanofiber [48, 80].

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