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The new electronic textile fiber wire has great potential

Time : 2021-06-28 Hits : 7

According to foreign media New Atlas, due to the material and the progress of electronic technology, we are starting to see clothes might not be in order to keep warm or one day


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Sozan Darabi, PhD student in the Department of Chemistry and Chemical Engineering, Chalmers University of Technology, said: "Tiny, wearable, electronic gadgets are becoming increasingly common in our daily lives, but currently, they tend to rely on rare, or in some cases toxic, materials. This has led to a mountain of e-waste accumulating. At the moment, there is a real need for organic, renewable materials for e-textiles."


Darabi and his team had previously had some success developing electrically conductive fibers made from silk, but now they are looking at cellulose, which they see as having great potential. The technology dyes lignocellulosic threads with an ink based on a conductive biocompatible polymer called PEDOT:PSS. This roll-to-roll coating process turns the wire into a conductive wire, so much so that the team claims to have created a cellulose wire with a record high electrical conductivity, which can be improved even further by adding silver nanowires.


The resulting thread can be sewn into fabric on a household sewing machine to produce thermoelectric textiles that generate electricity when heated on one side. For example, the team says that at a temperature difference of 37 ° C (assuming a person is standing in an icy environment), the textile can generate about 0.2μW of power.


Sozan Darab said: "This cellulose thread enables clothing with built-in electronic and intelligent functions made from non-toxic, renewable and natural materials."


Such clothing could be useful in a range of areas, but scientists see particular potential in healthcare, where it could be used to monitor different health indicators. The use of cellulose improves the recyclability of the finished product, although currently the threads can only withstand five machine washes without losing their electrical conductivity.


"Cellulose is an amazing material that can be sustainably extracted and recycled, and we'll see more and more of it in the future, and when products are made from a uniform material, or as few materials as possible, the recycling process becomes easier and more efficient. On the other hand, the use of cellulose thread in electronic textiles is very promising." Christian Muller, who led the study.

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