Three-Dimensional Graphene Foam-Polymer Composite with Superior Deicing Efficiency and Strength

Area of Science:

• Materials Science
• Aerospace Engineering
• Polymer Science

Background:

• Ice adhesion on aircraft surfaces degrades aerodynamic performance in cold conditions.
• Existing deicing systems often require high power consumption.
• Need for efficient and robust deicing solutions in aviation.

Purpose of the Study:

• To fabricate and characterize a graphene foam (GrF) reinforced polydimethylsiloxane (PDMS) composite for aircraft deicing.
• To evaluate the deicing efficiency, electrical conductivity, and electrothermal stability of the composite.
• To assess the mechanical properties and potential for multifunctional applications.

Main Methods:

• Fabrication of graphene foam (GrF) and polydimethylsiloxane (PDMS) composite.
• Measurement of deicing efficiency and electrical conductivity.
• Testing of electrothermal stability through cyclic current loading.
• Evaluation of mechanical properties including elastic modulus and tensile strength.

Main Results:

• The GrF-PDMS composite demonstrated a superior deicing efficiency of 477% compared to other nanocarbon systems.
• Achieved high electrical conductivity of 500 S m^-1 with only 0.1 vol % GrF addition.
• Exhibited excellent electrothermal stability over 100 dc loading-unloading cycles.
• Showcased simultaneous mechanical reinforcement, increasing elastic modulus by 23% and tensile strength by 18%.

Conclusions:

• The developed GrF-PDMS composite is a highly efficient and low-power deicing material.
• Its superior performance and mechanical enhancement offer a novel alternative to conventional deicing systems.
• The material's multifunctionality presents significant advantages for aerospace applications.