Adjustable IR Composite Materials for Dynamic Thermal Regulation
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Solution Overview
Problem
Current thermal management technologies face a trade-off between cost, ease of implementation, and dynamic control capabilities, with passive systems being static and inexpensive but unresponsive, and active systems being expensive and energy inefficient.
Innovation Solution
Development of composite materials with adjustable spectral properties, comprising an IR-transparent elastomeric matrix and IR-reflecting micro-domains anchored by nanostructures, allowing for dynamic adjustment of spacings between micro-domains via mechanical manipulation to control IR radiation transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If passive thermal management systems are used, then cost is reduced and implementation is simplified, but dynamic control capability is lost
Solution Approach 1:
The patent applies the dynamics principle by creating a composite material where the spacing between micro-domains can be dynamically adjusted through mechanical manipulation of the elastomeric matrix. This allows the material to transition between different thermal states (heat trapping vs. heat dissipation) in response to external stimuli, combining the simplicity of passive materials with the adaptability of active systems. The material structure evolves from static to dynamic, enabling real-time thermal regulation without complex active components.
2Adaptability or versatility
If active thermal management systems are used, then dynamic control capability is improved, but cost increases and energy efficiency deteriorates
Solution Approach 1:
The patent implements the self-service principle by designing a material that autonomously regulates heat transfer in response to environmental conditions or applied stimuli. The composite material self-adjusts its thermal properties through mechanical manipulation, eliminating the need for external power sources or complex control systems. The material serves its own thermal regulation function, achieving energy efficiency by leveraging passive mechanical actuation rather than active energy-consuming components.
3Use of energy by moving object
If the spacing between micro-domains is increased, then IR radiation transmission is improved, but thermal regulation capability is reduced
Solution Approach 1:
The patent resolves this contradiction by making the spacing between micro-domains dynamically adjustable rather than fixed. By mechanically manipulating the elastomeric matrix, the spacing can be varied to achieve different thermal states: larger spacing allows IR transmission for cooling, while smaller spacing enhances heat trapping. This dynamic configurability ensures that thermal regulation capability is maintained across varying operational requirements.
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 composite materials achieve efficient and reversible control of IR radiation transmission with low energy input, combining the benefits of passive and active systems by being cost-effective, easy to implement, and user-controllable, while maintaining thermal regulation capabilities.
Implementation Method 1
a plurality of micro-domains overlaying the elastomeric matrix, the plurality of micro-domains being characterized by a micro-domain thickness and comprising an IR-reflecting material
Implementation Method 2
an elastomeric matrix characterized by an elastomer thickness and comprising an IR-transparent, flexible, and stretchable material
Data Source
AI summary
Composite materials with adjustable spectral properties comprised of IR-reflecting micro-domains overlaying an IR-transparent elastomeric matrix, and capable of dynamically controlling IR radiation transmission are described, as well as methods of fabrication thereof. Systems with capabilities to regulate IR radiation (including heat) transmission based thereon, and methods of regulating IR radiation transmission (including thermal regulation) using the same are also provided.


