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Synthesis and thin film deposition of scratch-resistant hybrid silica coatings with an increased flexibility

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Abstract
In recent years, functional window films have gained much interest. These windows films can be used for a wide variety of applications. Some common examples of these applications are UV blocking, window tinting, insulation and shatter resistance. Most of the window films are functionalized by thin layers on a flexible substrate. It is also known that these thin layers are not stable in air and prone to deterioration caused by moisture and abrasion. This drawback can be overcome by the deposition of an additional scratch resistant coating. In this research, a protective silica coating with an increased mechanical strength and flexibility is deposited on a Polyethyleneterephtalate (PET) film. The latter is also functionalized with a thin metal oxide layer through sputtering and is often used for functional window films. Incorporation of hybrid organic-inorganic species inside the silica precursor, results in an increase of mechanical strength and, simultaneously, an increased flexibility and durability of the silica coating. The precursor solution was deposited onto the substrate by reverse gravure roll-coating. The ratio between web speed and application speed was optimized to obtain sufficient wetting of the film. A temperature program for inline drying of the coating is set up. The temperature program is important to transfer the results to industrial setups where the time available for drying is limited. One must keep in mind that the temperature should be high enough to obtain complete drying of the precursor solution while it should be low enough to avoid melting or breakdown of the organic substrate.

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Chicago
Watté, Jonathan, Matthias Van Zele, Isabel Van Driessche, and Klaartje De Buysser. 2017. “Synthesis and Thin Film Deposition of Scratch-resistant Hybrid Silica Coatings with an Increased Flexibility.” In Sol-Gel, 19th International Conference, Abstracts.
APA
Watté, J., Van Zele, M., Van Driessche, I., & De Buysser, K. (2017). Synthesis and thin film deposition of scratch-resistant hybrid silica coatings with an increased flexibility. Sol-Gel, 19th International conference, Abstracts. Presented at the 19th International Sol-Gel conference (Sol-Gel 2017).
Vancouver
1.
Watté J, Van Zele M, Van Driessche I, De Buysser K. Synthesis and thin film deposition of scratch-resistant hybrid silica coatings with an increased flexibility. Sol-Gel, 19th International conference, Abstracts. 2017.
MLA
Watté, Jonathan, Matthias Van Zele, Isabel Van Driessche, et al. “Synthesis and Thin Film Deposition of Scratch-resistant Hybrid Silica Coatings with an Increased Flexibility.” Sol-Gel, 19th International Conference, Abstracts. 2017. Print.
@inproceedings{8533101,
  abstract     = {In recent years, functional window films have gained much interest. These windows films can be used for a wide variety of applications. Some common examples of these applications are UV blocking, window tinting, insulation and shatter resistance. Most of the window films are functionalized by thin layers on a flexible substrate. It is also known that these thin layers are not stable in air and prone to deterioration caused by moisture and abrasion. This drawback can be overcome by the deposition of an additional scratch resistant coating. In this research, a protective silica coating with an increased mechanical strength and flexibility is deposited on a Polyethyleneterephtalate (PET) film. The latter is also functionalized with a thin metal oxide layer through sputtering and is often used for functional window films. Incorporation of hybrid organic-inorganic species inside the silica precursor, results in an increase of mechanical strength and, simultaneously, an increased flexibility and durability of the silica coating. The precursor solution was deposited onto the substrate by reverse gravure roll-coating. The ratio between web speed and application speed was optimized to obtain sufficient wetting of the film. A temperature program for inline drying of the coating is set up. The temperature program is important to transfer the results to industrial setups where the time available for drying is limited. One must keep in mind that the temperature should be high enough to obtain complete drying of the precursor solution while it should be low enough to avoid melting or breakdown of the organic substrate.},
  author       = {Watt{\'e}, Jonathan and Van Zele, Matthias and Van Driessche, Isabel and De Buysser, Klaartje},
  booktitle    = {Sol-Gel, 19th International conference, Abstracts},
  language     = {eng},
  location     = {Li{\`e}ge, Belgium},
  title        = {Synthesis and thin film deposition of scratch-resistant hybrid silica coatings with an increased flexibility},
  year         = {2017},
}