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Plastic spray painting – a potentially game changing technology

Posted In Technology Reviews - By Techtiplib on Thursday, January 16th, 2014 With No Comments »

Spray paint is a liquid type of paint that is delivered on a surface area through a spray nozzle. Available in various types and colors, spray paint comes in portable aerosol cans. A research group at the Wake Forest University in the US managed to come up with an ingenious explanation to one of the most significant technological hurdles linked to the organic semi-conductor industry of today.

Plastic spray painting - a potentially game changing technology

Spray painting on plastic can become a game changing technology

Assistant physics Professor Oana Jurchescu and her team developed an advanced organic semi-conducting ‘spray paint’ meant to be applied on large surfaces without shedding away its electric conductivity. This newly-discovered technology is potentially a game changer for various reasons. Thin film transistors that are organic are currently being deposited by a single method out of three. Spin coating and drop casting conduct electricity extremely well; unfortunately, they’re limited to reduced area applications. They can’t be employed on a video screen with the size of a wall for example. Spray-on techniques that are organic can easily be applied on larger areas, yet their performance is poor when compared to small-area counterparts.

The work of Professor Oana Jurchescu offers the best of both worlds. She developed the spray-deposition technology in her laboratory and managed to produce high performance thin film transistors that are organic. As a matter of fact, her discovery is pretty groundbreaking and might completely change the way people use spray paint in general. As opposite to spin coating and drop casting, the spray-deposition technology can easily be applied on larger surfaces.

Published in the Advanced Materials Journal in April 2013, this revolutionary spray painting technique on plastic materials showcased superb performance. The beauty of the pain lies in the fact that it is easy to apply over larger areas extremely fast (it’s also affordable to process in comparison with materials that are inorganic like silicon) and it has great potential of being produced in commercial quantities.

Plastic spray painting - a potentially game changing technology 1

The spray painting technology can be a huge step in the making of futuristic devices like solar cells on bus stations, building windows and car roofs mainly because of the lightweight, thin and conformal nature of the organic plastic.

The evolution of plastic painting technology

Painting plastic items is not that simple, and anyone can attest that the whole process can be daunting. Specialty paints are needed to achieve the right type of finish and make sure the paint bonds well with the plastic surfaces. Innovative plastic painting techniques have changed a lot in the recent years, and the good news is that today there are many different techniques by which plastic items can be painted in order to meet the needs of the manufacturer.

  • Wet coat painting

Similar to spray painting, wet coat painting is an excellent technique to paint plastic. That’s because powder coating plastic, although feasible, demands special planning to be manufactured. If powder coating will be used, using a resistant, high temperature type of plastic in combination with a standard thermostat powder coating is of the utmost importance. The whole process demands pre-heating and intense preparation.

  • Robotic painting

Using robotics is one of the best ways of proving how much the spray painting industry has evolved. Making use of robotic painters allows companies to complete their goals in a limited amount of time. The process is speeded, not to mention that the end result has greater precision than skilled human painters. Furthermore, robotic painters are created with numerous axes contained in the head paint, which allows perfect coating irrespective of the angle upon which the surface was set.

The painting industry, especially the type focused on plastic painting, has evolved a lot in the recent decades. Starting from air gun spraying, high-volume low pressure painting, to electrostatic spray painting and numerous other types, there’s no doubt that the industry has changed. With the discovery of this new technology that claims to be organic and cover larger, uniform surfaces, we’re currently witnessing a game changer in the whole industry. Out of so many ways to paint plastic, it’s up to manufacturing companies and factories in general to find the best techniques. While some might consider robotic painting a time-efficient alternative, others would rather stick to automated linear systems because they’re more convenient.

Author Bio:

This article is drawn by a regular blogger and tech writer Michael Clark. He loves to talk, discuss and spread awareness about anything interesting going on around us. Also he writes for a site http://www.fimark.co.uk/ which provides laser marking and etching services.

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