FRP Composites with Integrated Electrostatic Dissipation
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Solution Overview
Problem
Structural systems, such as walls and pillars, in environments with potential static electricity risks lack the ability to dissipate static electricity, which can lead to ignition of combustible dusts and asset damage, as current electrostatic dissipative (ESD) solutions are primarily applied to non-structural systems.
Innovation Solution
Integration of a conductive filler material within fiber reinforced polymer (FRP) composites, coupled with a conductive network and grounding component, to create a non-welded repair solution that dissipates static electricity to a grounding source, reducing the risk of ignition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive coatings with ESD capabilities are applied to non-structural systems, then static electricity dissipation is achieved, but structural reinforcement capability is not provided
Solution Approach 1:
The patent merges two previously separate functions into a single integrated system: structural reinforcement and electrostatic dissipation. The FRP composite structure incorporates conductive elements (carbon fibers, conductive fillers, or conductive networks) that provide both mechanical strengthening and static electricity dissipation pathways, eliminating the need for separate ESD coatings on structural components.
Solution Approach 2:
The FRP composite system is designed to perform multiple functions simultaneously: it provides structural reinforcement to strengthen walls and pillars, while also serving as an electrostatic dissipation system through its conductive components. This multi-functional design allows a single system to address both structural integrity and explosion prevention requirements.
2Strength
If composite repair systems are used for structural reinforcement, then structural strength is improved, but electrostatic dissipation capability is lost due to insulating properties
Solution Approach 1:
The patent applies local quality by incorporating conductive elements specifically within the FRP composite structure where needed for electrostatic dissipation. Rather than making the entire composite conductive, conductive fillers are dispersed in the resin matrix, carbon fibers are embedded in specific orientations, or conductive networks are integrated at strategic locations, providing ESD capability while maintaining the overall insulating properties where not needed.
Solution Approach 2:
The invention uses composite materials by combining insulating FRP materials (fiberglass, carbon fiber reinforced polymer) with conductive components (carbon black fillers, metallic fibers, conductive polymers, or separate conductive networks). This creates a hybrid composite system that exhibits both mechanical strength from the FRP and electrostatic dissipation from the conductive additives.
3Reliability
If ESD coatings are applied as secondary coatings, then electrostatic dissipation is achieved, but device complexity and application steps increase
Solution Approach 1:
The patent eliminates the need for secondary ESD coatings by integrating electrostatic dissipation functionality directly into the FRP composite material itself. The conductive elements are incorporated during FRP manufacturing, creating a monolithic structure that provides both structural and ESD functions without requiring additional coating layers or complex multi-step application 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 solution effectively reinforces structures while ensuring NFPA 69 compliance, providing a means to safely dissipate static electricity and prevent asset damage and potential explosions, with a resistivity range suitable for static dissipation.
Implementation Method 1
a conductive filler material disposed in the FRP composite... a conductive network in contact with or disposed within the FRP composite... allowing for static to dissipate to ground via the ESD properties
Data Source
AI summary
Systems and methods of forming fiber reinforced polymer (FRP) composites with electrostatic dissipative properties are described herein. The FRP composite is bonded to a surface and integrates a grounding system to dissipate electro-static energy, thus eliminating the potential risk of explosion. The system can be used for structures that require reinforcement and that are susceptible to electro-static explosions.