1.Product Core
Reinforced Corrugated Graphite Tape is a high-performance composite material, which takes high-purity flake graphite (purity ≥ 99.9%) as the base material, and is compounded with high-strength reinforcing layers (such as glass fiber cloth, nickel foil, or stainless steel mesh) through rolling, corrugated forming, and high-temperature bonding. Its core value lies in "retaining the excellent thermal conductivity and sealing performance of graphite while significantly improving mechanical strength and anti-tearing ability", solving the pain points of traditional corrugated graphite tape such as low tensile strength and easy damage under high pressure/vibration, and suitable for harsh working conditions like high-pressure sealing and heavy-duty thermal conduction.
2.Technical Parameters
|
Parameter Item |
Indicator Range |
Test Standard |
|
Graphite Purity |
≥ 99.9% |
GB/T 3521-2021 |
|
Reinforcing Layer Type |
Glass fiber cloth / Nickel foil (0.01-0.03 mm) / Stainless steel mesh (304/316L) |
ASTM D3775 |
|
Thickness Range |
0.2-6.0 mm (customizable) |
ISO 4593 |
|
Width Range |
8-1200 mm (customizable) |
ISO 4593 |
|
Density |
1.9-2.3 g/cm³ |
GB/T 20495-2021 |
|
Tensile Strength |
≥ 25 MPa |
GB/T 1040.4-2006 |
|
Tear Resistance |
≥ 8 kN/m |
ASTM D1004 |
|
Compression Ratio (3 MPa) |
18%-45% |
ASTM F36 |
|
Rebound Rate (after unloading) |
≥ 82% |
ASTM F36 |
|
Longitudinal Thermal Conductivity |
140-280 W/(m·K) |
ASTM D5470 |
|
Transverse Thermal Conductivity |
45-95 W/(m·K) |
ASTM D5470 |
|
Temperature Resistance Range (Inert Environment) |
-200℃~650℃ |
IEC 60068-2-14 |
|
Corrosion Resistance (48h Immersion in 30% H₂SO₄) |
Mass Loss ≤ 0.6% |
GB/T 1033.1-2008 |
|
Adhesion Strength (Reinforcing Layer-Graphite) |
≥ 1.2 N/mm |
ASTM D3359 |
3.Core Features
Superior Mechanical Strength
The embedded reinforcing layer enhances the product's tensile strength to ≥ 25 MPa (30% higher than ordinary corrugated graphite tape) and tear resistance to ≥ 8 kN/m, effectively preventing cracking or deformation during installation and long-term use, and adapting to high-pressure working environments (up to 10 MPa).
Outstanding Thermal Conductivity & Sealing Stability
Reinforced Corrugated Graphite Tape maintains graphite's excellent thermal performance: longitudinal thermal conductivity 140-280 W/(m·K), transverse thermal conductivity 45-95 W/(m·K); the corrugated structure ensures a compression rate of 18%-45% (under 3 MPa) and rebound rate ≥ 82%, which can stably maintain sealing contact and thermal conduction efficiency even under alternating temperature and pressure.
Wide Temperature Resistance & Corrosion Resistance
It can work stably in the temperature range of -200℃~650℃ (inert environment) and -160℃~480℃ (air environment); it is resistant to most acids (concentration ≤ 35% HCl, ≤ 40% H₂SO₄), alkalis (concentration ≤ 25% NaOH), and organic solvents (methanol, ethylene glycol, etc.), and is not easy to be corroded and degraded in chemical industrial environments.
Structural Stability & Easy Processing
The reinforcing layer and graphite base material are tightly bonded (adhesion strength ≥ 1.2 N/mm), without delamination; it can be cut into any size (width 8-1200 mm, thickness 0.2-6.0 mm) according to needs, and supports stamping into special-shaped parts to fit irregular sealing/thermal conduction interfaces (such as flange grooves, battery pack gaps).
4.Main Applications
|
Application Field |
Specific Scenarios |
|
High-Pressure Sealing Field |
High-pressure valves/flanges in oil and gas pipelines, seals for high-pressure pumps and compressors, and sealing of pressure vessels in chemical plants |
|
New Energy Industry |
Thermal conduction and sealing of large-scale energy storage battery packs, sealing of hydrogen fuel cell bipolar plates (high-pressure hydrogen environment), and thermal management of heavy-duty EV battery packs |
|
Industrial Thermal Management |
Thermal conduction between thick-walled industrial furnaces and heat exchangers, gap filling for high-power motor heat dissipation components, and thermal insulation/sealing of aerospace equipment thermal control systems |
|
Chemical & Petrochemical Industry |
Sealing of acid-base transport pipelines, seals for reactor manholes, and thermal conduction interfaces of corrosion-resistant heat exchange equipment |
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