The drawing behavior of polyvinylalcohol fibers

Drawing of Hollow Multilayered All-Polymer Fibers

We present a fluid dynamics model for the drawing of hollow multilayer polymer optical fiber. A newtonian model is considered assuming slender geometries. Hollow core collapse during drawing and layer thickness non-uniformity are investigated as a function of draw temperature, draw ratio, feeding speed, core pressurization and mismatch of material properties in a multilayer.

Drawing Behavior of Ultrahigh Molecular Weight Polyethylene (uhmwpe) Fibers in Supercritical C02

Modeling the Fabrication of Hollow Fibers: Capillary Drawing

A method for modeling the fabrication of small-scale hollow glass capillaries is developed. The model is based on an asymptotic analysis of the Navier-Stokes equations, which yields a simple closed-form solution for this problem. We demonstrate the validity of this approach using experimental data and use it to make predictions for a range of regimes of interest for the development of microstru...

an inverstigation into the shrinkage behavior (kinetics) of microfilled hybrid and nano dental composites

چکیده ندارد.

Investigation on the Effect of Microwave Field on the Rheological Behavior of Polyaniline: Polyvinylalcohol Blends