Ionic Liquid Antistatic Floor Coatings
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Solution Overview
Problem
Existing thick floor coatings struggle with electrostatic charging due to high surface resistivity, leading to undesirable effects such as dust attraction, component destruction, and safety hazards, and require expensive and sensitive thin-layer systems for effective antistatic properties.
Innovation Solution
A thick floor coating system utilizing solutions of metal salts in ionic liquids as an antistatic component, which avoids layer thickness sensitivity and expensive top layers by achieving conductivity and ESD properties in a single layer, using ionic liquids as solvents for metal salts with added organic solvents for high conductive salt content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If thick floor coatings are used, then durability and coverage are improved, but electrostatic charging increases due to high surface resistivity
Solution Approach 1:
The patent introduces ionic liquids as an intermediary substance that mediates between the thick coating matrix and the metal salt antistatic agents. The ionic liquid serves as a specialized solvent that dissolves metal salts effectively and facilitates their migration to the surface, enabling thick coatings to achieve antistatic properties without compromising durability
Solution Approach 2:
The patent changes the physical-chemical parameters of the coating system by incorporating ionic liquids with specific properties (low viscosity, high conductivity, thermal stability). This parameter change enables the coating to maintain both thick-layer durability and low surface resistance, transforming the electrical properties of the coating system
2Reliability
If metal salts are dissolved in common solvents, then antistatic properties are achieved, but solubility is low requiring large amounts of solvent
Solution Approach 1:
The patent changes the solvent parameter from common organic solvents to ionic liquids, which have fundamentally different solvation properties. This parameter change dramatically improves metal salt solubility, allowing effective antistatic concentrations to be achieved with much smaller solvent volumes
Solution Approach 2:
The patent creates a composite solvent system combining ionic liquids with metal salts, where the ionic liquid component provides superior dissolving capacity. This composite approach enables high concentrations of conductive salt to be incorporated without requiring excessive solvent amounts
3Stability of the object's composition
If metal salts are dissolved in formulation components like polyols, then homogeneous distribution is achieved, but the proportion of these components is limited changing physical properties
Solution Approach 1:
The ionic liquid acts as a dedicated intermediary solvent specifically for metal salts, separating this function from the formulation components like polyols. This allows the formulation components to maintain their primary functions while the ionic liquid handles metal salt dissolution and distribution, preventing unwanted side reactions
Solution Approach 2:
The patent segments the solvent functions by introducing ionic liquids as a separate, specialized component. Instead of relying on formulation components to serve dual purposes (reactive component + metal salt solvent), the ionic liquid is dedicated to metal salt solvation, allowing greater formulation flexibility
4Reliability
If external antistatic agents are applied to the surface, then initial antistatic effect is achieved, but the effect is easily removed by friction or liquid
Solution Approach 1:
The patent applies preliminary action by incorporating metal salts into the coating material before application. These antistatic agents are pre-distributed throughout the coating matrix and will continuously migrate to the surface during service, providing long-term effectiveness rather than just initial protection
Solution Approach 2:
The coating system performs self-service through the continuous migration of metal salt ions from the bulk coating to the surface. This self-replenishing mechanism maintains antistatic properties over time without requiring external reapplication, as the coating itself supplies the antistatic agents needed at the surface
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 system effectively reduces surface resistance to below 10^10 ohms, minimizing electrostatic charging and avoiding 'dead spots' with selected layer thickness, enabling cost-effective production of durable coatings suitable for areas previously limited to thin-layer systems.
Implementation Method 1
the molecules migrate continuously to the surfaces of the coating materials due to their inherent incompatibility and accumulate there
Implementation Method 2
forms a conductive layer, which can conduct charges into the atmosphere at just tens or hundreds of volts
Data Source
AI summary
Disclosed is a novel thick floor coating that has antistatic properties and contains metal salt solutions in ionic liquids as an antistatic component. Such thick floor coatings are suitable especially for the chemical construction sector and particularly for commercial buildings occupied by the electronics and electrical industry, which are prone to risks caused by electrostatic charges. The inventive thick coatings can be applied at a maximum thickness of 2.0 cm, the antistatic component being provided at an amount ranging from 0.1 to 30 percent by weight relative to the thick coating formulation.