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Press

PCIM Europe Nuremberg 2015

Thermally conductive pad: Thermipad TP 22715 with 15 W/mK

SPIE Smart Structures/NDE conference

Electronics & Components Hong Kong

Imports and exports of the electrical industry

Pertinax

InnoTrans Berlin

World Energy Engineering Congress Washington

Enova Paris

International Electric & Automation Show Bucharest

CFRP profiles

Energie Impulse Aachen

Water-jet cutting

 CWIEME in Berlin 2013

Coil Winding 2013

Thermiglue TL 23010

Coil Winding 2012

CWIEME Berlin 2012

Italian bobbin manufacturer

Working hours

NEC Birmingham UK

Advanced Engineering UK 2011

Clean Energy Expo Asia 2011

Contract 4S iPhone protectors

COMPOSITES EUROPE 2011

Electric Drives Production Conference

MOTEK 2011 and Bondexpo

IAA 2011

Norton TH

ArpaxX-Aramid Paper

Slot insulation material

Bern and public transport

Germany with great opportunities in the field of electric cars

Stamp parts from Valox for the lighting industry

Thermal management for LED – Applications

APTIV films are available as a new high performance materials

ArpaxX - push up the heat: Dr. Dietrich Müller GmbH

ZVEI: The Electrical Industry expects that the boom will continue in 2012

Lectures at the CWIEME Berlin 2011

CWIEME Berlin 2011: Dr. Dietrich Müller GmbH with a large product range

Increased Growth Forecast for the German Electrical Industry

Hannover Messe CoilTechnica:  A Good and Positive Response for Dr. Dietrich Müller

Delivery situation in Japan

FIEE: A resounding success for Dr. Dietrich Müller

FIEE ELÉTRICA 2011

Dr. Dietrich Müller: Punched parts made ​​of 3M VHB Tape

Dr. Dietrich Müller: Nomex® parts in self-adhesive version.

Dr. Müller GmbH CoilTechnica, Hannover.

MT in different varieties and Thermiflex

Dr. Müller GmbH: New product for the solar industry

Dr. Dietrich Müller registered as a UL – „Repackaged Recognized Components“ Company.

CWIEME Berlin 2010: Dr. Mueller in Ahlhorn

Dr. Mueller: High technology and innovation at one time in one venue

Dr. Müller GmbH continues its leadership as a supplier of Ultem films

Dr. Müller GmbH: New product line for films release

Dr. Müller proud of the opening of the Germany's first offshore wind park

Müller and Temac: Distribution agreement sealing materials

Get involved with the latest insulation product offerings at the Coil Winding 2010 – Dr. Müller GmbH

Pertinax®

Direct request:

Enquiries from the United Kingdom:

Dr. Dietrich Mueller UK Limited

Tel    +44 7549 834830
Fax   +44 2476 996466

info.uk@~No~Spam~mueller-ahlhorn.com

 

Enquiries from all other countries:

Tel: +49 4435 971010
Fax: +49 4435 971011
E-Mail: info@~No~Spam~mueller-ahlhorn.com

Let us know, which product you are
looking for and we will give you the
adress of the right distributor.

 

 

Chemical resistance

Generally GE films make up with most chemical materials which are met in the typical living- and office environment, when there are normal temperatures and a low stress level. Films under tension – like cold-formed, bended or embossed applications – tend to tension cracks in contact with certain substances.

Increased temperatures can pander or accelerate this kind of defects.

Some chemicals, like acetone, toluol and halogenised hydrocarbons act soluble to GE films. Because of that dichloromethane is used as a solvent adhesive for GE films.

Whenever influences of potential aggressive or incompatible materials are possible, only covered films should be used.

Chart 18 states relevant information about the general chemical compatibility of GE films. Generally the concrete resistance against specific substances during processing and/or using should be pre-tested under practical conditions in every individual case.

In case of doubt please do not hesitate in contacting our application engineering.

Behaviour after immersion in water

During laboratory tests no notable changes in tensile- and stretch behaviour at the films have been determined after the immersion in water for several weeks. But the immersion in boiling water has a significant and rapid influence to the elongation of Lexan® films. The values of the tensile strength up to the liquid and elastic limit change insignificantly. Long-term immersion in seawater at normal temperatures also has insignificantly influences to Lexan® films. Valox® and Ultem® films are even more resistant under the same conditions.

Gas- and vapour permeability

The specific gas- and vapour permeability of polymer films can play a major role in packaging applications. The particular permeability depends on the diffusion rate or the solubility of the gas in the barriers and their wall thicknesses.
Chart 20 states typical values for Lexan® and Ultem® films with a wall thickness of 0.025mm at 23°C.

Chart 20: Gas- and vapour permeability in controlled atmosphere

 

 

Weather resistance

Permanent direct solar radiation on unprotected GE films leads to a (removable) chalky covering and yellow colour. The time till a visible change depends on the intensity of the radiation as well as on the film thickness and can vary between months and years. Because of this unprotected GE films should not be used for outdoor applications at which good appearance and mechanical properties are essential. Generally GE films are well-resistant against temporary outdoor weathering or constant lightning with fluorescent lamps.

UV stability

The Lexan® film HP92W has a GE developed special covering for protecting against yellowness and turbidity so that graphics behind the films remain well-readable. Lexan® HP92W is a common choice for special ambitious outdoor applications because of its yellow value of <0.25 after 1,000 hours of accelerated UV lightning.

Diagram 8: accelerated UV lightning (ASTM G53 – UV313 BB)

 

 

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