Ice Mitigation Coatings with Molecular Flexibility
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Solution Overview
Problem
Current anti-icing technologies for aircraft surfaces require external energy and increase complexity, weight, and maintenance, while existing coatings lack durability and scalability for commercial aviation needs.
Innovation Solution
Development of ice adhesion mitigating surface coatings with monomeric species exhibiting molecular flexibility through aliphatic or heteroaliphatic chains within the polymer backbone or as pendant groups, used in epoxy coatings to reduce ice adhesion strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heated surfaces or pneumatic boots are used for ice prevention, then ice adhesion is effectively prevented, but energy consumption increases and system complexity increases
Solution Approach 1:
The coating enables the surface to actively prevent ice adhesion through molecular flexibility without requiring external energy input. The monomeric species with aliphatic chains autonomously mitigate ice adhesion strength, allowing the surface to protect itself rather than requiring powered heating systems or pneumatic boots
Solution Approach 2:
The patent replaces mechanical/thermal active systems (heated surfaces, pneumatic boots) with a passive chemical coating system. The molecular flexibility of the coating substitutes for mechanical de-icing systems, eliminating the need for complex powered equipment while maintaining ice prevention effectiveness
2Reliability
If heated surfaces or pneumatic boots are used for ice prevention, then ice adhesion is effectively prevented, but device complexity increases
Solution Approach 1:
The coating enables the surface to actively prevent ice adhesion through molecular flexibility without requiring external energy input. The monomeric species with aliphatic chains autonomously mitigate ice adhesion strength, allowing the surface to protect itself rather than requiring powered heating systems or pneumatic boots
Solution Approach 2:
The patent replaces mechanical/thermal active systems (heated surfaces, pneumatic boots) with a passive chemical coating system. The molecular flexibility of the coating substitutes for mechanical de-icing systems, eliminating the need for complex powered equipment while maintaining ice prevention effectiveness
3Reliability
If heated surfaces or pneumatic boots are used for ice prevention, then ice adhesion is effectively prevented, but weight increases
Solution Approach 1:
The coating enables the surface to actively prevent ice adhesion through molecular flexibility without requiring external energy input. The monomeric species with aliphatic chains autonomously mitigate ice adhesion strength, allowing the surface to protect itself rather than requiring powered heating systems or pneumatic boots
Solution Approach 2:
The patent replaces mechanical/thermal active systems (heated surfaces, pneumatic boots) with a passive chemical coating system. The molecular flexibility of the coating substitutes for mechanical de-icing systems, eliminating the need for complex powered equipment while maintaining ice prevention effectiveness
4Ease of manufacture
If conventional coatings are used, then manufacturing is simpler, but durability and scalability are insufficient for commercial aviation
Solution Approach 1:
The patent modifies the chemical parameters of the coating by incorporating monomeric species with specific aliphatic chain structures. This changes the molecular flexibility parameter of the coating, enabling it to achieve both durability and scalability required for commercial aviation while maintaining manufacturability through standard epoxy coating processes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The coatings significantly reduce ice adhesion strength, offering a passive or supplementary solution to active strategies, potentially decreasing energy requirements and eliminating the need for active systems, with demonstrated reductions in ice adhesion strength exceeding 50% compared to uncoated surfaces.
Implementation Method 1
The molecular flexibility in the monomeric species may reduce the interaction energy and, ultimately, the ice adhesion strength of ice accreted on the surface through the impact of fluid, such as super-cooled water droplets
Data Source
AI summary
Embodiments provide ice adhesion mitigating surface coatings and methods for generating the same. Embodiments may provide anti-icing coating with at least one monomeric species exhibiting molecular flexibility. The molecular flexibility in the monomeric species may be imparted through an aliphatic or heteroaliphatic chain that may exist as a portion of the monomer backbone, as a pendant group, or as both the portion of the monomer backbone and the pendant group. In various embodiments epoxy coatings including an epoxy resin and an amine-terminated hardener may be generated. At least a portion of the amine-terminated hardener may include at least a monomeric species that exhibits molecular flexibility arising from an aliphatic chain or heteroaliphatic chain that may be within the polymer backbone and/or may persist as a pendant group.