Thermally Expanded Graphite (TEG / ТРГ)

Overview

TEG (ТРГ, thermally expanded graphite) is the graphene-like carbon material ARBOK produces in-house by its own process. It behaves as a near-ideal black body: absorption up to 99 % of incident radiation across the full spectrum, from UV through visible to far IR. A photon entering its vermicular porous structure is lost in multiple internal reflections. TEG is the shared material base under a family of ARBOK products rather than a product itself.

Applications

Solar absorbers and full-spectrum panels; direct-absorption nanofluids; thermal blankets and heat spreaders; oil-spill sorbents; concrete and rubber additives; electrode and battery materials; space radiative surfaces.

Users: internal ARBOK product lines.

Operating Principle

Thermal expansion of intercalated graphite produces a vermicular (worm-like) porous morphology with very high specific surface area. Incident radiation entering the pore structure undergoes multiple internal reflections and is almost fully absorbed and converted to heat; high in-plane thermal conductivity then moves that heat away from the absorbing surface.

Key Parameters

Absorption: up to 99 % across the full solar spectrum (UV → far IR).

Specific surface area: 1 g unfolds to roughly the area of a football field.

Thermal conductivity: 100–470 W/(m·K).

Areal density in panel form: 1–3 kg/m² (vs 10–20 kg/m² for a silicon module).

Chemical stability: no oxidation, no photo-degradation over time.

Recycling: ground to powder and regenerated in a furnace back into new product.

Composition: carbon only — no silicon, no rare-earth elements.

Architecture and Components

Raw graphite → intercalation → thermal expansion → vermicular TEG powder → downstream forms: pressed foil/sheet, coating, aqueous dispersion (nanofluid), composite filler.

Advantages

Technical: near-black-body absorption across the whole spectrum; no photo-degradation; stable at extreme temperature; very high specific surface.

Economic: produced in-house; recyclable by grinding and furnace regeneration; light in areal terms, so no reinforced supporting structures.

Strategic: carbon feedstock only — no silicon and no rare earths, therefore no exposure to concentrated foreign supply chains.

Integrations

Base material for: ThermaVolt · eWATT · Arbok Nanofluid Collector · Arbok-BlackBody System (ABBS) · GrapheneVoltaic Collector · TEG-Blanket · OILTRAP · TEG-BETON · ARBOK-RUBBER · LB HEAT

Deployment & Operation

Produced in-house at ARBOK as a base material and supplied to the downstream product lines listed in section 8 rather than deployed as a standalone installation. Production siting, batch size and handling requirements: [требует уточнения из базы].

TRL

TRL 8–9 as a material: TEG is produced at ARBOK today and its optical and stability properties are relied upon by shipped products. TRL of the individual devices built on it is tracked in their own cards and is lower.

Market Potential

Demand inside ARBOK is set by the product lines that consume TEG as their base material — solar, thermal, sorption, storage and shielding. External market sizing for expanded graphite: [требует уточнения из базы].

Typical Project Economics

TEG is an internal base material, not a project. Its cost enters the economics of the downstream products; a standalone project economics figure is not applicable. Production cost per kilogram: [требует уточнения из базы].

Risk Factors

Downstream product claims (efficiency figures in particular) must not be inherited from the material card — the material being real does not make a device figure validated. Dispersion stability and binder compatibility are process know-how and are held per product line.

Related Technologies

ThermaVolt · eWATT · Arbok-BlackBody System (ABBS) · Arbok Nanofluid Collector