Conference Paper

High Performance Thin Films for Aerospace Applications

June 2012

Conference: Aeromat 23 Conference and Exposition American Society for Metals

Authors:

The usefulness of polymer-based materials and coatings in aircraft components is two-fold. First, weight reductions are highly desirable to decrease fuel consumption and second, polymer-based materials are usually less expensive and convenient to manufacture. However, when used in applications with strict optical requirements, these polymeric surfaces can be susceptible to erosion which results in increased haze and decreased clarity. For example, when staple materials such as polycarbonate or stretched acrylic are used in windows, windshields, and canopies, one of the drawbacks is the tendency to scratch and craze. Polymeric windows have been historically coated with polysiloxane or polyurethane based coatings to overcome this limitation by improving the surface resistance to scratches. Still, improvements to the processes involved can decrease the required long drying times and can offer long term solutions in which the resistance to erosion is maintained overtime. Advanced thin film coatings based on Plasma Deposition Technologies can improve the durability of many components on aircrafts. These technologies can be exploited to generate materials with high performance, which are also environmentally friendly and produced with waste free processes. We are currently focusing our efforts in the development and study of thin films to improve the resistance to material erosion on polymeric substrates with applications in the aerospace industry and defense.

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Article

Plasma-polymerization-deposited transparent protective coating for plastic display window

September 1996 · Proceedings of SPIE - The International Society for Optical Engineering

The technique of mid-frequency plasma polymerization was employed to deposit scratch-resistant and anti-fogging films on transparent polycarbonate substrates. The input monomer used for depositing scratch-resistant coatings was tetramethyldisiloxane (TMDSO). Variation of oxygen-to-TMDSO ratio study indicated that the hardest film was formed using equal amount of oxygen and TMDSO. The typical ... [Show full abstract] deposition rate was about 3 micrometers /hr. Typical operation pressure, TMDSO flow and oxygen flow were 2 X 10-2 Torr, 30 sccm and 30 sccm, respectively. The deposited polysiloxane layer was characterized as a hard, highly transparent and durable against scratching and abrasion film. Further depositing a thin hydrophilic film on top of the polysiloxane layer significantly improved the surface wettability and therefore dramatically increased the anti-fogging capability. The monomer used for polymerization deposition of the anti- fogging film was vinyl acetate, and the typical flow for vinyl acetate monomer and oxygen were 15 sccm and 10 sccm, respectively.

Conference Paper

269945 Advanced Thin Films for Aerospace Applications

October 2012

vi A. Matos

Conference: American Institute of Chemical Engineers Annual Meeting Date of the conference: October 28th - November 2nd, 2012 Title: High Performance Thin Film Based Coatings in Aircraft Applications Author: Alpana N. Ranade, PhD, Marvi A. Matos, PhD Organization: The Boeing Company Abstract The use polymer-based materials and coatings in aircraft components is two-fold, first, the ... [Show full abstract] weight reductions are highly desirable to decrease fuel consumption and second, polymer-based materials are usually less expensive and convenient to manufacture. However when used in exterior aerospace applications, these polymeric surfaces can be susceptible to erosion which results in poor appearance and the loss of optical clarity for transparent materials. For example, when staple materials such as polycarbonate or stretched acrylic are used in windows, windshields and canopies, one of the drawbacks is the tendency to scratch. Polymeric windows have been historically coated with polysiloxane or polyurethane based coatings to overcome this limitation by improving the surface resistance to scratches. Still, improvements to the processes involved can decrease the required long drying times and can offer long term solutions in which the resistance to erosion is maintained overtime. The Advanced Thin Films team at the Boeing Company has made tremendous progress in the use of Atmospheric Plasma for the deposition of durable films for a variety of applications. This technology offers a great advantage over other plasma deposition techniques due to the potential high quality of the films produced, the portability of the equipment and low initial capital investment required. This technology can be exploited to generate materials with high performance, which are also environmentally friendly and produced with waste free processes. The Advanced Thin Films team currently focuses in the development and study of thin films to improve the resistance to material erosion on polymeric and composite substrates with applications in the aerospace industry.

Conference Paper

High Performance Thin Film Based Coatings for In Aircraft Applications

October 2011

Marvi A. Matos

Conference: American Institute of Chemical Engineers Annual Meeting Date of the conference: October 16-21st, 2011 Title: High Performance Thin Film Based Coatings in Aircraft Applications Author: Marvi A. Matos, PhD Organization: The Boeing Company Abstract The use polymer-based materials and coatings in aircraft components is two-fold, first, the weight reductions are highly ... [Show full abstract] desirable to decrease fuel consumption and second, polymer-based materials are usually less expensive and convenient to manufacture. However when used in applications with strict optical requirements, these polymeric surfaces can be susceptible to erosion which results in increased haze and decreased clarity. For example, when staple materials such as polycarbonate or stretched acrylic are used in windows, windshields and canopies, one of the drawbacks is the tendency to scratch and craze. Polymeric windows have been historically coated with polysiloxane or polyurethane based coatings to overcome this limitation by improving the surface resistance to scratches. Still, improvements to the processes involved can decrease the required long drying times and can offer long term solutions in which the resistance to erosion is maintained overtime. Advanced thin film coatings based on Open Air Plasma Deposition Technologies can improve the durability of many components on aircrafts. These technologies can be exploited to generate materials with high performance, which are also environmentally friendly and produced with waste free processes. We are currently focusing our efforts in the development and study of thin films to improve the resistance to material erosion on polymeric substrates with applications in the aerospace industry and defense.