Carbon Nanomaterial Composite Sheet for Aerospace Shielding
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Solution Overview
Problem
Aerospace vehicles with composite components face challenges in weight increase and production costs due to the need for additional materials for lightning strike protection and electromagnetic interference shielding, which existing composite materials fail to address effectively.
Innovation Solution
A carbon nanomaterial composite sheet is developed, comprising a layer of carbon nanomaterial structure bonded to a porous metalized nonwoven carrier layer, providing both lightweight strength and effective shielding against electromagnetic interference and lightning strikes without the need for additional materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If additional materials are applied for lightning strike protection and electromagnetic interference shielding, then shielding effectiveness is improved, but weight increases
Solution Approach 1:
The patent combines lightning strike protection and electromagnetic interference shielding functions into a single integrated layer. The carbon nanomaterial composite sheet incorporates conductive carbon nanotubes or graphene within a polymer matrix, creating one multifunctional layer that simultaneously provides both shielding capabilities, eliminating the need for separate protective layers and reducing overall weight.
Solution Approach 2:
The carbon nanomaterial composite sheet is designed to perform multiple functions simultaneously: it provides lightning strike protection through its conductive properties, electromagnetic interference shielding through its conductive network, and maintains mechanical strength as part of the composite structure. This multifunctional approach allows a single material to replace multiple specialized materials.
2Object-affected harmful factors
If additional materials are applied for lightning strike protection and electromagnetic interference shielding, then shielding effectiveness is improved, but production cost increases
Solution Approach 1:
By merging multiple protective functions into a single composite layer, the patent reduces the number of manufacturing steps required. Instead of applying separate coatings or layers for lightning protection and EMI shielding, the multifunctional carbon nanomaterial composite provides both protections in one integration, simplifying the production process and reducing labor and material handling costs.
Solution Approach 2:
The universal applicability of the carbon nanomaterial composite sheet across multiple protection needs reduces overall material costs. By using a single multifunctional material instead of multiple specialized materials, the patent eliminates the need to source, store, and process several different materials, thereby reducing production complexity and cost.
3Object-affected harmful factors
If additional materials are applied for lightning strike protection and electromagnetic interference shielding, then shielding effectiveness is improved, but production time increases
Solution Approach 1:
The patent integrates multiple protective functions into a single composite sheet that can be applied in one step during composite manufacturing. The carbon nanomaterial composite layer is incorporated directly into the composite structure formation process, eliminating the need for subsequent application steps for separate protective layers, thereby reducing production time.
Data Source
AI summary
A carbon nanomaterial composite sheet and a method for making a carbon nanomaterial composite sheet may include a layer of a carbon nanomaterial structure being bonded to a carrier layer, the carrier layer being fabricated from a porous metalized nonwoven material.