Welcome to the Extrusion section. The latest articles for this section are displayed below:

Starve-fed single-screw extrusion of polymer blends

Krzysztof J. Wilczyński, Adrian Lewandowski, and Krysztof Wilcyński
21 November 2016
In contrast to flood-fed extrusion, two distinct stages of melting are observed during starve-fed extrusion and a novel melting mechanism is thus proposed.

Frictional heating of extruded polymer melts

José Pérez-González, Héctor S. Zamora-López, and Benjamí-n M. Marí-n-Santibáñez
8 June 2016
Rheo-particle image velocimetry and thermal imaging results show that frictional and viscous heating act synergistically to produce significant temperature increases when a melt is extruded under slip conditions.

Predicting the extent of resin infiltration in pin-assisted pultrusion

Thanasis D. Papathanasiou and Nickolas D. Polychronopoulos
8 March 2016
A simple explicit model is proposed, based on analysis of computational results that show the extent of resin infiltration in a pin-assisted pultrusion process scales with a novel dimensionless group.

Ultrasonic twin-screw extrusion for polypropylene/carbon nanotube nanocomposites

Jing Zhong and Avraam I. Isayev
19 February 2016
An innovative ultrasonic twin-screw extruder with different screw designs is applied to improve the dispersion efficiency of carbon nanotubes in polypropylene.

Integrated computer model for intermeshing counter-rotating twin-screw extrusion

Krzysztof Wilczyński, Adrian Lewandowski, Andrzej Nastaj, and Krzysztof J. Wilczyński
29 December 2015
Metering, melting, and solid conveying are considered in an experimentally verified simulation approach for the calculation of melting, pressure, temperature, and fill factor profiles.

Investigating two electrospinning mass transfer mechanisms

Danny J. Y. S. Pagé, Jennifer Scott, and Siavash Sarabi-Mianeji
12 October 2015
Whipping and splitting—favored by separate processing conditions—result in different fiber diameters and diameter distributions, and can be identified by the measured current during processing.

Keratin-containing nanofibers for cell growth and tissue scaffolds

Duygu Yüksel Deniz and Memet Vezir Kahraman
7 October 2015
A polymer solution that includes human hair is used in a UV-electrospinning technique to fabricate non-toxic fibers with diameters of less 350nm.

Combinatorial effects of kneading elements on twin-screw compounding

Graeme Fukuda, David Bigio, Ben Dryer, Jake Webb, Paul Andersen, and Mark Wetzel
2 October 2015
An inline residence-stress-distribution methodology enables characterization of the effect of unique screw geometries on dispersive mixing.

Investigating agricultural waste-reinforced polyurethane elastomer green composites

Erdal Bayramli, Umit Tayfun, and Mehmet Dogan
3 June 2015
Enhancing interfacial interactions between natural filler and polymer matrix by modifying the surface of rice straw results in stronger thermoplastic polyurethane-based eco-composites.

Flow simulation software to optimize coextrusion die design

Mahesh Gupta and Kim Ryckebosch
1 June 2015
Virtual fine-tuning of coextrusion dies using a flow simulation software reduced the lead time and the number of fine-tuning cycles in experiments by 35  significantly cutting the cost of designing a die.