Forum for Science, Industry and Business

DuPont fluoropolymers for electrical insulation

A new foam grade, Teflon® FEP TE 9810, produces smaller, better dispersed and more homogenous voids compared to previous Teflon® foam grades for enhanced electrical properties in wires with melt extruded fluoropolymer insulations. Depending on the construction, this grade, Teflon® FEP TE 9810, has the ability to be self skinning, offering production of cost-effective, high-performance foam insulation for data cables.

Photo: DuPont
New Teflon® FEP TE 9810 (left) produces smaller, better dispersed and more homogenous voids compared to previous Teflon® foam grades (right) for enhanced electrical properties in wires with melt extruded fluoropolymer insulations.

It enables the extrusion of all three sections of a skin-foam-skin construction – an inner-skin to ensure mechanical adhesion of the foam to the copper conductor, the foam itself and an outer, protective skin – in a single shot without the need for a second extruder and without the need for a multi-layer crosshead.

Meanwhile a new, licensable extrusion technology from DuPont incorporates air into the extruded Teflon® PTFE insulation for higher performance, low-loss data cables.

DuPont™ Teflon® and DuPont™ Tefzel® fluoropolymers are commonly used for their insulating capabilities under harsh environmental conditions including high temperatures up to 260oC. Whereas Teflon® PTFE, PFA and FEP are chosen for their thermal and chemical resistance in combination with electrical and low-friction properties, Tefzel® ETFE is chosen for its mechanical toughness, ease of processing and high-energy radiation resistance. Both Tefzel® and Teflon® have low dielectric constants and high volume resistivity as well as approved thermal class ratings (SAE, ISO) for wire insulation.

DuPont Fluoropolymer Solutions is a leading producer of fluoropolymer resins, additives, films, finishes and dispersions, PTFE (polytetrafluoro¬ethylene), PFA (perfluoroalkoxy), FEP (fluorinated ethylene propylene), ETFE (ethylene-tetrafluoroethylene) and PVF (polivinylfluoride), marketed under the registered trademarks DuPont™ Teflon®, DuPont™ Tefzel®, DuPont™ Tedlar® and DuPont™ Zonyl®. Major markets for these fluoropolymer products include the automotive, chemical processing, semiconductor, oil exploration, chemical handling, data communication, aerospace, electronics, housewares and building industries.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

The DuPont Oval, DuPont™, The miracles of science™, and Teflon® and Tefzel® are registered trademarks or trademarks of E.I. du Pont de Nemours and Company or its affiliates.

Horst Ulrich Reimer | Du Pont
Further information:
http://www.dupont.com

Im Focus: Nonstop Tranport of Cargo in Nanomachines

Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.

Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.