Antistatic Coating for Conductive Tile Flooring

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Solution Overview

Problem

Conventional conductive tile flooring materials suffer from limited wear resistance, generating fine wear particles and failing to provide adequate antistatic protection, which can lead to operational failures and electrostatic discharge damage in electronic manufacturing environments.

Innovation Solution

A double-layer laminated conductive tile flooring material with a water-soluble photo-curable antistatic resin composition, containing 5-15% conductive fine particles with carbon nanotubes, 0.1-5% fumed silica, and 10-20% water-soluble epoxy or urethane acrylate, applied as a 3-7 μm thick coating to enhance wear resistance and antistatic properties while maintaining transparency and eco-friendliness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional conductive tile flooring materials (rubber or PVC) are used, then antistatic performance is achieved, but wear resistance is poor and fine wear particles are generated

Engineering Contradiction:
Improveantistatic performanceVSAvoidwear resistance
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The patent applies composite materials by combining conductive fine particles (carbon black, carbon nanotubes, or conductive metal oxide particles) with photo-curable resin components (oligomers, monomers, and photopolymerization initiators) to create a coating composition that simultaneously achieves antistatic performance and improved wear resistance when applied to tile flooring surfaces

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent employs parameter changes by controlling the particle size of conductive fine particles (1-100 nm diameter), adjusting the molecular weight and functional groups of oligomers and monomers, and optimizing the ratio of components to achieve both antistatic properties and enhanced mechanical durability against wearing

Inventive Principle:
Principle #35Parameter changes

2Reliability

If conductive fine particles are added to photo-curable resin composition, then antistatic property is improved, but transparency is reduced

Engineering Contradiction:
Improveantistatic propertyVSAvoidtransparency
Core Design Contradiction:
ReliabilityVSIllumination intensity

Solution Approach 1:

The patent applies local quality by using conductive fine particles with specifically controlled small diameters (1-100 nm) that are sufficiently small to minimize light scattering and maintain coating transparency while still providing effective antistatic properties, thus creating localized conductive pathways without compromising overall optical clarity

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent addresses transparency by carefully selecting and controlling the concentration of conductive fine particles and their optical properties, ensuring that the coating maintains at least 80% transparency of the underlying tile surface while achieving the required antistatic performance

Inventive Principle:
Principle #32Color changes

3Reliability

If carbon black or carbon fiber is used to provide antistatic property, then conductivity is achieved, but wear resistance remains limited and fine particles are generated

Engineering Contradiction:
ImproveconductivityVSAvoidfine wear particles
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent uses composite materials by formulating a coating composition that integrates conductive fine particles within a photo-curable resin matrix, creating a protective layer that provides conductivity while the cured coating structure prevents the generation of fine wear particles during normal use

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies parameter changes by controlling the particle size, concentration, and distribution of conductive fine particles within the coating, optimizing these parameters to achieve sufficient conductivity while minimizing particle generation through wear of the coated surface

Inventive Principle:
Principle #35Parameter changes

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 significantly improves wear resistance and antistatic properties, inhibiting fine particle generation and maintaining at least 80% of the original color, ensuring effective protection against electrostatic discharge and wear, while being harmless to humans and the environment.

Implementation Method 1

photo-polymerization initiator; 0.1 to 5wt.% of photo-polymerization initiator

Methodology Applied
Scientific EffectPhotopolymerisation: Photopolymerisation

Implementation Method 2

conductive fine particles containing carbon nanotubes; 5 to 15% by weight of conductive fine particles

Methodology Applied
Scientific EffectConduction (electrical): Conduction (electrical)

Implementation Method 3

conductive fine particles containing carbon nanotubes

Methodology Applied
Scientific EffectCarbon Nanotubes: Carbon Nanotubes

Implementation Method 4

water soluble epoxy or urethane acrylate; 10 to 20wt.% of water soluble epoxy or urethane acrylate

Methodology Applied
Scientific EffectAdhesive: Adhesive

Implementation Method 5

0.1 to 5wt.% of fumed silica

Methodology Applied
Scientific EffectComposite Materials: Composite Materials

Data Source

PatentEP2080792B1Water soluble photo-curable antistatic composition with improved wear resistance and high transparency, and conductive hard tile flooring material coated with the same
Publication Date: 2018.02.14 KIM CHAE HO

AI summary

Disclosed is a conductive hard tile flooring material coated with water soluble photo-curable antistatic resin composition having improved wear resistance and high transparency, which has double-layer laminated structure and is prepared by applying the water soluble photo-curable antistatic resin composition to surface of a conductive tile flooring made of general rubber and PVC, so that the flooring material has improved wear resistance and antistatic property sufficient to overcome restrictions of conventionally available conductive tile floorings, and express at least 80% of original colors of the floorings.