Erik Khranovskyy | Grafren AB: Why do current conductive fabrics feel like stiff metal or suffocating plastic instead of real clothing?
03:00 - 05:10
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Summary of the clip:
Why do current conductive fabrics feel like stiff metal or suffocating plastic instead of real clothing?
Traditional smart textiles rely on heavy, corrosive metal wires or thick conductive paints laden with polymer binders. These legacy approaches compromise the very nature of apparel, resulting in heavy, non-breathable, and stiff garments. Even advanced projects like Google's Jacquard, which weave metallic threads directly into fabrics, fail to replicate the tactile feel and comfort of genuine textiles.
Grafren AB bypasses these limitations by coating individual fabric fibers on the nanoscale with overlapping graphene flakes. This unique liquid-phase technique leaves the original textile microstructure completely unaltered, preserving its inherent porosity, lightweight nature, and breathability.
By eliminating the need for insulating polymer binders and heavy metal components, this nano-coating process integrates seamlessly with traditional textile manufacturing. The result is a highly conductive, breathable e-textile that feels completely identical to ordinary fabric.
In this short video, you can learn:
* Why metal wires and conductive silver inks fail to preserve fabric breathability and comfort.
* How Grafren coats individual fibers on a nanoscale with overlapping graphene flakes without using binders.
* The manufacturing advantages of maintaining the original microstructure, porosity, and feel of the textile.
📋 **Clip Abstract** This clip contrasts the limitations of traditional e-textile approaches, such as metallic wires and conductive paints, with Grafren's nanoscale graphene fiber-coating technology. It explains how the company achieves high electrical conductivity while fully preserving the natural breathability, lightness, and softness of the original textile.
#GrapheneNanocoating, #BinderFreeGraphene, #FiberLevelCoating, #ConductiveTextiles, #SmartTextiles, #WearableElectronics
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05:13 - 07:44
Can a single layer of graphene transform ordinary fabric into an ultra-fast heater and tactile sensor?
Can a single layer of graphene transform ordinary fabric into an ultra-fast heater and tactile sensor?
Controlling the resistance of smart fabrics is the key to unlocking multi-functional e-textiles. By precisely adjusting the quantity of deposited graphene flakes, manufacturers can tune the material's resistivity for distinct applications, ranging from low-resistance power transmission to high-resistance thermal generation.
This precision enables the creation of ultra-lightweight textile heaters containing only two grams of graphene per square meter. These systems can ramp up to 100°C in just eight seconds, providing rapid, highly efficient thermal management without adding bulk or rigid elements to the garment.
Furthermore, the mechanical deformation of these coated fibers alters their local conductivity, allowing the fabric to function as highly sensitive pressure and strain sensors. This opens new frontiers for seamless biometric tracking, haptic feedback, and gesture recognition interfaces.
In this short video, you can learn:
* How tuning graphene deposition levels allows the same fabric to be optimized for heating, power, or signal transmission.
* The performance metrics of a record-breaking textile heater achieving 100°C in eight seconds using only 2g/m² of graphene.
* How local conductivity shifts enable knitted and woven graphene fabrics to function as stable pressure and strain sensors.
📋 **Clip Abstract** The speaker details how modifying graphene concentration allows precise control over fabric resistivity to enable heating, power routing, and signal transmission. He demonstrates a rapid-response textile heater and explains how mechanical deformation allows these materials to act as highly responsive pressure and strain sensors.
#GrapheneETextiles, #TextileHeaters, #PiezoresistiveSensors, #ResistivityTuning, #SmartTextiles, #FlexibleElectronics
10:58 - 12:28
Can graphene-coated smart textiles scale to high-volume manufacturing without prohibitive material costs?
The scalability of conductive coatings on textiles depends on transitioning from batch prototyping to continuous roll-to-roll processing. While initial material characterization and presentation samples are constrained to discrete, smaller formats, achieving commercial viability requires high-throughput manufacturing. Scaling to wide-width, continuous roll-to-roll production lines is the critical step toward meeting industrial demand for smart fabrics and wearable electronics.
In functionalizing fabrics, the deposition cost of the nanomaterial is directly tied to the target sheet resistance required for the specific application. For instance, standard biopotential monitoring applications, such as electrocardiogram (EKG) electrodes, operate efficiently at a sheet resistance of several hundred ohms per square. Achieving this electrical performance requires optimizing the mass loading of graphene per square meter of the substrate.
The total volume of nanomaterial required is also governed by the structural morphology of the host textile. Fabrics with higher fiber density and greater surface area demand a higher consumption of graphene to ensure a continuous, conductive network across all individual fibers. While current low-volume deposition remains costly, optimizing these coating parameters suggests that long-term production costs can eventually align with conventional carbon black treatments.
In this short video, you can learn:
* The transition from small-scale presentation samples to high-width, continuous roll-to-roll production.
* How target sheet resistance and mass loading dictate the material cost of graphene-coated fabrics.
* The impact of textile fiber density and surface area on nanomaterial consumption during deposition.
📋 **Clip Abstract** The speaker discusses the scalability of their graphene coating process, detailing the transition from small presentation samples to large-scale roll-to-roll production. He also explains how the cost of graphene deposition depends on the target sheet resistance for applications like EKG electrodes and the structural fiber density of the host fabric.
🎤 Speaker: Erik Khranovskyy
🏢 Company: Grafren AB
📅 Event: Graphene & 2D Materials 2021: End Users, Applications, Major Producers & Start Up 2021
📍 Location: TechBlick Platform Online
🌐 Learn more at the next TechBlick event: https://www.techblick.com
#PerovskiteQuantumDots, #MicroLEDLightEngines, #DiffractiveWaveguides, #AdditivePrintedElectronics, #AugmentedRealityDisplays, #FlexibleOptoelectronics