Composite Protective Coating for UV Blocking and Crack Resistance
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Solution Overview
Problem
Fiber-reinforced composite materials used in vehicles and platforms are susceptible to degradation from exposure to electromagnetic radiation, moisture, and heat, necessitating protection without increasing weight or violating regulatory standards.
Innovation Solution
A coating system with a light-blocking layer using titanium dioxide and chemical blockers to prevent transmission of UV and visible light, while reflecting infrared components, maintaining desired solar absorptivity and avoiding thick layers that could crack or violate EME standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thick coating layer is applied to block UV and visible light, then protection against light degradation is improved, but the coating may crack and exceed EME standards
Solution Approach 1:
The patent changes the chemical composition parameters of the coating by incorporating specific blockers (UV absorbers, quenchers, and HALS) at controlled concentrations. This allows achieving adequate light blocking protection while maintaining coating flexibility and preventing cracks, thus resolving the contradiction between protection effectiveness and crack resistance.
Solution Approach 2:
The patent creates a composite coating system combining multiple functional components: titanium dioxide for UV scattering, chemical blockers for UV absorption, quenchers for energy dissipation, and HALS for radical scavenging. This multi-component composite approach provides comprehensive protection while maintaining coating integrity and flexibility.
2Reliability
If a thick coating layer is applied to block UV and visible light, then protection against light degradation is improved, but the coating may violate EME standards
Solution Approach 1:
The patent optimizes the thickness and composition parameters of the coating to achieve the minimum effective protection level that complies with EME standards. By using highly effective blockers and optimally formulating the coating, adequate UV and visible light protection is achieved without excessive thickness that would violate EME regulations.
3Use of energy by moving object
If titanium dioxide is used to reflect infrared components and provide solar absorptivity, then solar absorptivity is improved, but weight and complexity increase
Solution Approach 1:
The patent employs titanium dioxide to perform multiple functions simultaneously: it scatters and blocks UV radiation, reflects visible light, and provides infrared reflection for solar absorptivity control. This multi-functionality approach achieves comprehensive solar management without requiring separate layers for each function, thereby reducing overall coating complexity.
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 coating system effectively protects composite materials from UV and visible light degradation, meeting regulatory standards for solar absorptivity and weight, while ensuring flexibility and crack resistance.
Implementation Method 1
configured to reflect infrared components of sunlight using a colorant
Implementation Method 2
configured to prevent transmission of at least one of ultraviolet light or visible light within desired wavelengths using a chemical blocker
Data Source
AI summary
Coating systems are presented. A coating system for a composite component comprises a light blocking layer configured to prevent transmission of at least one of ultraviolet light or visible light within desired wavelengths and configured to reflect infrared components of sunlight using a colorant.