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13. Jan 2022 | Application Areas

Different colour at the touch of a button

BMW has presented an electric model at the Consumer Electronics Show in Las Vegas that can change its colour.

At the CES in Las Vegas, BMW has presented a car that can change its colour with a special foiling.
Image source: BMW

At the CES in Las Vegas, BMW caused a stir with its "BMW iX Flow featuring E Ink". With this model, the driver can change the colour of his vehicle at the touch of a button. This is made possible by special bodywork foiling. Stimulated by electrical signals, the electrophoretic paint brings different colour pigments to the surface, through which the car body takes on the desired colouring.

Known from e-readers

This technology is mainly known from e-readers. The coating of the vehicle contains several million microcapsules that contain negatively charged white pigments and positively charged black pigments. Depending on the setting, either the white or the black pigments are deposited on the surface of the microcapsule by stimulation with an electric field, thus giving the body the desired colour.

According to the manufacturer, in addition to design aspects, matching the vehicle colour should also help to reduce cooling and heating requirements of the vehicle air conditioning system.

EC Library Automotive Coatings Formulation

Books

Automotive Coatings Formulation

The automobile industry and the varnish manufacturers use a considerable expenditure to produce particularly appealing surfaces. The main focus in the painting industry is on the protection against corrosion, weathering, chemical and mechanical influences as well as obtainment of appealing surfaces. Several manufacturers specialize exclusively in automobile lacquers. This book deals with the composition and the production of the most difficult components as well as their physical and application technology characteristics. Application technology characteristics describe the application behaviour, the task of protection and the responding appearance. Ulrich Poth approaches the people who are entrusted with raw materials, systems and application procedures. Furthermore, Automotive Coatings Formulation is addressed to all chemists, physicists, engineers and other technically interested persons.

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