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Key features

Naphthalene-based Mesophase Pitch Specifications:

Softening point (Mettler method): 290 – 310℃Ash content: ≤300ppm
Coking value (ASTM D4715-98(2017), GB/T8727-2008): 85-95%
Toluene insoluble: 55-65%
Quinoline insoluble: 36-46%
Volatile content: 18-24%
Mesophase content: ≥95%

Petroleum-based Mesophase Pitch (>85%) Specifications:

Softening point (Mettler method): 164℃
Ash content: 0.018%
Coking value: 80.36%
Toluene insoluble: 62.2%
Quinoline insoluble: 53.39%
Volatile content: 32.67%
Mesophase content: >85%

Petroleum-based Mesophase Pitch (30%) Specifications:

Softening point (Mettler method): 140℃
Ash content: 0.037%
Coking value: 69.15%
Toluene insoluble: 43.21%
Quinoline insoluble: 7.04%
Volatile content: 44.29%
Mesophase content: 30%

Applications

Naphthalene-based mesophase pitch applications:

Mesophase pitch based carbon/graphite fiber.
High-performance carbon/carbon composites.
High-performance carbon foam.
High specific surface area activated carbon.
Lithium battery cathode material.
Advanced needle coke.
Widely used in national defense and military applications such as aviation and aerospace.

Petroleum-based mesophase pitch applications:

Carbon/graphite fiber
Carbon/carbon composite binders
Carbon foam
Lithium battery cathode material
Impregnation.

Use cases

Customers have used mesophase pitch for a wide variety of applications including:

Matrix densification of carbon-carbon composites.
Production of carbon-carbon components for nuclear power plant applications.
Densification of carbon fiber components through liquid impregnation or chemical vapor disposition.
Infiltration/filler in resins

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