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Home / Carbon Allotropes / Graphene Nanoplatelets | conductive and reinforced composites

Graphene Nanoplatelets | conductive and reinforced composites

Few-layer graphene| high aspect ratio, surface area, carbon-based functionality

Introduction

Graphene Nanoplatelets (GNPs| Platelet-Based Electrical and Thermal Percolation

Direct Answer

Graphene nanoplatelets (GNPs) are few-layer graphene platelets used to create electrically and thermally conductive networks in polymers, coatings, and composites through planar percolation rather than bulk conduction.

What it is

A multilayer graphene material consisting of stacked graphene sheets with high in-plane conductivity and large surface area.

What it is NOT

Not single-layer graphene, not carbon black, and not a fully exfoliated or molecularly dispersed nanomaterial.

Where it fits

Used as a conductive and reinforcement filler in polymers, coatings, adhesives, battery components, and EMI shielding materials.

Boundary

Performance depends on dispersion quality, platelet aspect ratio, orientation, and interfacial compatibility.

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Product Parameter

Product feature

Material Identity

Primary name: Graphene Nanoplatelets (GNPs)

CAS number: 1034343-98-0(graphene)

Synonyms: Few-layer graphene, graphene platelets, FLG

Material class: Graphitic carbon nanomaterial

Generalized formula: C

Physical form: Black platelet powder

Mechanism of Action

Electrical conduction via platelet–platelet percolation
Thermal transport dominated by in-plane phonon transfer
Barrier enhancement through layered tortuous pathways

Functional Role

Electrical conductivity enhancement
Thermal conductivity improvement
Mechanical reinforcement
EMI shielding contribution

Application Windows
Compatible with thermoplastics, thermosets, elastomers, inks, coatings, and battery electrodes.

When to Use

When planar conductivity is required
When moderate loading is acceptable
When thermal spreading is needed

When NOT to Use

When optical transparency is required
When ultra-low percolation threshold is needed
When dispersion control is unavailable

Limitations & Failure Modes

Agglomeration reduces conductivity
Orientation sensitivity affects isotropy
Lower efficiency than CNTs at ultra-low loadings

Alternatives & Trade-offs

SWCNT – lower percolation, higher cost
BCHP – laser absorption, not conductive
ATO – antistatic, lower conductivity
rGO – higher defect density

FAQ

Are graphene nanoplatelets the same as graphene?

No. GNPs consist of multiple stacked graphene layers rather than a single atomic sheet.

Do GNPs require dispersion aids?

Yes. Proper dispersion techniques are required to prevent agglomeration and maintain conductivity.

Application area

Last updated: 2026-01-22

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