Air Jet Spinning for Long Staple

Nanofiber assembly by rotary jet-spinning.

High-voltage electrical fields and low production rate limit electrospinning, the electrical charging of polymer liquids, as a means of nanofiber fabrication. Here, we show a facile method of fabrication of aligned three-dimensional nanofiber structures by utilizing high-speed, rotating polymer solution jets to extrude fibers. Termed rotary jet-spinning, fiber morphology, diameter, and web poro...

A simple model for nanofiber formation by rotary jet-spinning

Paula Mellado, Holly A. McIlwee, Mohammad R. Badrossamay, Josue A. Goss, L. Mahadevan, and Kevin Kit Parker School of Engineering and Applied Sciences, Wyss Institute of Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA Kavli Institute for NanoBio Science and Technology, Harvard University, Cambridge, Massachusetts 02138, USA Disease Biophysics Group, Ha...

The Long Staple Weavable Singles Yarn

Tilted Micro Air Jet for Flow Control

In this paper, we present an interesting method to microfabricate a tilted micro air jet generator. We used the well-know deep reactive ion etching (DRIE) technique in order to realize in a silicon substrate a double side etching. For aircraft and cars, micro air jets will take an important place for fluid control. Micro air jets are characterized by their speed, frequency and tilt. Usually, th...

Simulation Model for Weft Yarn Motion in a Single-Nozzle Air-Jet Loom

Air-jet weaving is an advanced weaving method with high efficiency and productivity. It is one of the most widely used methods of weaving in the world. In air-jet filling insertion, the motion of weft yarn is caused by friction between weft yarn and air blown through nozzle. After declamping and subjecting the yarn to air stream, its motion is not active but very complicated and influenced by ...