Ulrich Trog | Joanneum Research: Why does this revolutionary reversible silicone inhibition technology only work on platinum-cured systems?
00:07:08 - 00:08:23
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Why does this revolutionary reversible silicone inhibition technology only work on platinum-cured systems?
Implementing reversible inhibition requires a clear understanding of the curing chemistry involved. This chemical stabilization method is strictly compatible with platinum-catalyzed addition-cure systems, meaning standard condensation or peroxide-cured silicones cannot leverage this specific volatile inhibitor pathway.
The technology is ideally optimized for Liquid Silicone Rubbers (LSR) and high-consistency formulations processed at room temperature. It allows high-value, reactive formulations to transition from challenging two-part on-site mixing into pre-mixed, single-component delivery formats.
For high-temperature curing systems, conventional thermal inhibitors already perform adequately, making this volatile-phase inhibition approach most commercially disruptive for room-temperature processes. By maintaining a highly stable processing window, it streamlines automation and simplifies quality control.
In this short video, you can learn:
* Why this reversible inhibition chemistry is exclusively restricted to platinum-catalyzed addition systems.
* The applicability of the technology across Liquid Silicone Rubbers (LSR) and high-consistency elastomers.
* How this method converts traditional 2K processes into highly simplified 1K-style workflows.
📋 **Clip Abstract** This clip defines the technical boundaries and material requirements for applying reversible silicone inhibition. It outlines why the technology targets room-temperature, platinum-cured liquid silicone rubbers to maximize process reliability.
#PlatinumCuredSilicone, #LiquidSiliconeRubber, #ReversibleInhibition, #OneComponentSilicone, #FlexibleElectronics, #PrintedElectronics
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00:04:15 - 00:07:08
How can you mix a two-part platinum-cured silicone and store it on the shelf for weeks without it curing?
How can you mix a two-part platinum-cured silicone and store it on the shelf for weeks without it curing?
Two-part addition-cured silicones conventionally suffer from a severely restricted pot life once component A and component B are combined. This immediate onset of hydrosilylation causes progressive viscosity changes during processing, reducing process reproducibility, increasing manufacturing scrap, and forcing operators to prepare fresh batches constantly.
Joanneum Research resolves this commercial bottleneck through a patented reversible chemical inhibition process. By introducing a highly volatile inhibitor into the blended formulation, the platinum catalyst is temporarily inactivated, allowing the mixed, ready-to-use silicone to remain entirely stable at room temperature on the shelf for weeks.
Once the formulation is deployed into production, the volatile inhibitor evaporates from the applied material. This traceless escape enables the hydrosilylation reaction to resume instantly, yielding the original cured elastomer with unchanged physical, chemical, and mechanical properties.
In this short video, you can learn:
* How volatile inhibitors temporarily deactivate the platinum catalyst to block premature hydrosilylation.
* The rheological behavior of modified silicones showing stable low viscosity over several weeks.
* The process benefits of transforming a classic 2-component system into a shelf-stable 1-component mix.
📋 **Clip Abstract** This clip introduces a patented chemical method to achieve shelf-stable mixed silicones using volatile inhibitors. By temporarily blocking the platinum catalyst, manufacturers can mix, store, and process silicones without early curing or material waste.
#PlatinumCuredSilicone, #HydrosilylationInhibition, #VolatileInhibitors, #ShelfStableSilicone, #PrintedElectronics, #AdditiveManufacturing
00:10:24 - 00:12:50
Can you 3D-print high-precision silicone structures through an inkjet nozzle without instantly clogging the system?
Can you 3D-print high-precision silicone structures through an inkjet nozzle without instantly clogging the system?
Industrial inkjet printing of highly viscous elastomers like silicones has historically been limited by severe nozzle clogging and premature gelation within the fluid delivery lines. When component A and component B are mixed prior to printing, the continuous viscosity buildup quickly renders micro-nozzles inoperative.
By integrating volatile inhibitors into the formulation, the mixed silicone behaves as a stable, low-viscosity fluid inside the inkjet printhead. As the droplet is jetted onto a heated substrate, the inhibitor rapidly volatilizes, triggering localized gelation and allowing precise deposition of subsequent layers.
This phase-change behavior enables the additive manufacturing of complex 2.5D structures, such as 350-micrometer tall silicone gaskets built up from sequential 10-micrometer thick passes. The method offers an agile, tool-less alternative for low-volume production of micro-seals and structured substrates without wasting expensive raw materials.
In this short video, you can learn:
* The mechanism preventing nozzle clogging during continuous inkjet printing of reactive two-part silicones.
* How rapid evaporation of the volatile inhibitor allows layer-by-layer 2.5D structural build-up.
* The performance metrics of depositing 10-micrometer thick silicone layers to form precise micro-gaskets.
📋 **Clip Abstract** This clip showcases a digital inkjet printing case study enabled by reversible silicone inhibition. By preventing premature curing in the printhead, it achieves high-resolution 2.5D additive manufacturing of micro-elastomers.
#SiliconeInkjetPrinting, #VolatileInhibitors, #MicroGaskets, #ReactiveInkjet, #PrintedElectronics, #FlexibleElectronics