As a part of the CLiCAM project, we are actively driving advancements in Surface Engineering to integrate High-Performance Low Emissivity (Low-E) functionality into textile materials. The core technical hurdle lies in depositing uniform, highly adherent thin-film coatings onto the complex topography and thermally sensitive substrates, such as polyester and Nylon 6,6 fabrics, without compromising the material integrity. To overcome this, our strategic approach leverages state-of-the-art, low-temperature vacuum deposition techniques, particularly PVD combined with PECVD surface pretreatment. This method is crucial for ensuring the structural stability and uniformity of the low E coatings.

Our work focuses on engineering a robust coating hierarchy:

• Critical Surface Activation: Vacuum based pre-treatment to maximize coating adhesion on the textile material
• Functional Layer Deposition (PVD/PECVD): Depositing the Low-E metallic layer with plasma pre-treatment
• Protective Topcoat: Applying a final layer to enhance durability and ensure the entire system can withstand harsh environmental conditions

The comprehensive surface engineering techniques being utilized to deposit highly functional Low-E coatings on textile fabrics have been presented by Dr. Rajesh Mundotia. Further strategic directions were discussed during a highly productive planning session with Dr. Hansjörg Weis and Dr. Rebeca Correia to define our next phase of research.