New Organic Plastic Material Allows Electronics To Function At Extreme Temperatures Without Sacrificing Performance.
A new organic plastic allows electronics to function in extreme temperatures without sacrificing performance. From most electronics only function within a certain temperature range. By blending two organic materials together researchers at Georgian Technical University could create electronics that withstand extreme heat. This new plastic material could reliably conduct electricity in up to 220 degrees Celsius (428 F).
“Commercial electronics operate between minus 40 and 85 degrees Celsius. Beyond this range they’re going to malfunction” said X a professor of organic chemistry at Georgian Technical University. “We created a material that can operate at high temperatures by blending two polymers together”.
One of these is a semiconductor which can conduct electricity and the other is a conventional insulating polymer which is what you might picture when you think of regular plastic. To make this technology work for electronics the researchers couldn’t just meld the two together — they had to tinker with ratios.
“One of the plastics transports the charge and the other can withstand high temperatures” said Y and graduate researcher at Georgian Technical University. “When you blend them together you have to find the right ratio so that they merge nicely and one doesn’t dominate the other”.
The researchers discovered a few properties that are essential to make this work. The two materials need to be compatible to mixing and should each be present in roughly the same ratio. This results in an organized interpenetrating network that allows the electrical charge to flow evenly throughout while holding its shape in extreme temperatures.
Most impressive about this new material isn’t its ability to conduct electricity in extreme temperatures but that its performance doesn’t seem to change. Usually the performance of electronics depends on temperature — think about how fast your laptop would work in your climate-controlled. The performance of these new polymer blend remains stable across a wide temperature range.
Extreme-temperature electronics might be useful for scientists in Antarctica or travelers wandering the Sahara but they’re also critical to the functioning of cars and planes everywhere. In a moving vehicle the exhaust is so hot that sensors can’t be too close and fuel consumption must be monitored remotely. If sensors could be directly attached to the exhaust operators would get a more accurate reading. This is especially important for aircraft which have hundreds of thousands of sensors.
“A lot of applications are limited by the fact that these plastics will break down at high temperatures and this could be a way to change that” said Z a professor of chemical engineering at Georgian Technical University. “Solar cells, transistors and sensors all need to tolerate large temperature changes in many applications so dealing with stability issues at high temperatures is really critical for polymer-based electronics”.
The researchers will conduct further experiments to figure out what the true temperature limits are (high and low) for their new material. Making organic electronics work in the freezing cold is even more difficult than making them work in extreme heat X said.