Protective Composite Fabric for Corrosion Control in Wet Environments
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Solution Overview
Problem
Existing protective fabrics fail to effectively prevent corrosion and damage from environmental factors while maintaining structural integrity, particularly in humid and wet conditions, and lack integrated corrosion inhibition and shielding capabilities.
Innovation Solution
A composite fabric structure comprising multiple layers, including films, fibrous layers, and retaining members, with integrated vapor and contact corrosion inhibitors, and optional electromagnetic shielding, designed to maintain adhesion and prevent corrosion by vaporizing inhibitors and forming pockets for collection, while providing secure fit and shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective fabrics are used to prevent corrosion and damage, then protection capability is improved, but structural integrity deteriorates in humid and wet conditions
Solution Approach 1:
The patent employs a composite fabric structure comprising multiple layers including a liquid-resistant breathable fabric layer, a corrosion-inhibiting layer, and an electromagnetic shielding layer. Each layer contributes specific properties that collectively enhance both protection capability and structural integrity, with the composite structure preventing moisture penetration while maintaining fabric strength in harsh environments.
Solution Approach 2:
The patent utilizes phase change materials, specifically vapor corrosion inhibitors that transition from solid to vapor state, to provide corrosion protection. The retaining members are configured to facilitate this phase change and collect the vaporized inhibitor, allowing the system to adapt to environmental conditions while maintaining protective function and structural stability.
2Reliability
If vapor corrosion inhibitors are used to prevent corrosion, then corrosion protection is improved, but loss of substance increases due to vaporization
Solution Approach 1:
The patent incorporates retaining members configured to collect and retain the vaporized corrosion inhibitor after it performs its protective function. This allows the inhibitor to be recovered and reused, reducing substance loss while maintaining continuous corrosion protection. The retaining members essentially recycle the vaporized inhibitor back into the protective system.
Solution Approach 2:
The patent utilizes the phase transition of the vapor corrosion inhibitor from solid to vapor state for delivery, then relies on the retaining members to facilitate condensation or collection of the vaporized form. This phase change mechanism enables effective corrosion protection through vapor delivery while the retention system prevents complete loss of the inhibitor substance.
3Reliability
If multiple layers are added to provide integrated shielding capabilities, then protection capability is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple protective functions into a single integrated fabric structure. The liquid-resistant breathable fabric layer, corrosion-inhibiting layer with vapor corrosion inhibitors and retaining members, and electromagnetic shielding layer are merged into one composite material system. This integration provides comprehensive protection (corrosion, moisture, electromagnetic interference) while maintaining a manageable single-fabric form factor rather than separate components.
Solution Approach 2:
The composite fabric structure is designed to perform multiple functions simultaneously: the fabric layer provides liquid resistance and breathability, the corrosion-inhibiting layer with vapor inhibitors prevents corrosion, and the electromagnetic shielding layer blocks electromagnetic interference. Each layer serves multiple purposes, such as the corrosion-inhibiting layer that also contributes to the overall composite structure integrity, thereby reducing overall system complexity despite the multi-functional 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 fabric effectively prevents corrosion and damage by maintaining adhesion and integrity in harsh environments, while ensuring corrosion inhibitors are retained and released as needed, and offers integrated shielding against electromagnetic interference.
Implementation Method 1
the retaining members include a first vapor corrosion inhibitor within the plurality of retaining members configured to vaporize and collect between the surface and the portion of the second side of the second fibrous layer spaced from the surface
Implementation Method 2
the plurality of retaining members and the second side of the second fibrous layer are configured to cooperate with the surface to form at least one pocket configured to retain the vaporized first vapor corrosion inhibitor therein
Data Source
AI summary
A composite fabric includes a film, a first fibrous layer, a fabric layer, and a second fibrous layer and one or more retaining members. The film has a first side and a second side. The first fibrous layer has a first side connected to the second side of the film and a second side. The fabric layer has a first side connected to the second side of the first fibrous layer and a second side. The second fibrous layer has a first side connected to the second side of the fabric layer and a second side. The film can be a non-heat shrinking film. The retaining members may be configured to contact a surface on which the composite fabric is placed and resist movement of the composite fabric relative to the surface where the retaining members include a corrosion inhibitor.