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Carbon Fiber Reinforced Aerogel Composite WedGel CAC350 are Carbon fiber-reinforced carbon aerogel composites for thermal insulation, incorporating oxidized polyacrylonitrile (PAN) fiber felts. These are advanced materials designed to provide exceptional thermal insulating properties.  It is a flexible, insulation material manufactured from oxidized polyacrylonitrile fibers and SiO2 aerogel. It is manufactured through an innovative, high technology nano‐composite process. This composite thermal barrier has ultra‐low thermal conductivity, excellent hydrophobicity, is environmentally safe, flame‐resistant, easy to cut and easy to use in thermally protective applications. It is the most effective thermally insulative material, that is also easily processed in the end use application, to effectively insulate against fire and high heat, while maintaining minimum thickness. Carbon aerogel composites refer to materials that combine carbon aerogels with other substances to create new materials with enhanced properties.

 

Features and Benefits

Carbon fiber-reinforced carbon aerogel composites (C/CAs) for thermal insulators were prepared by copyrolysis of resorcinol-formaldehyde (RF) aerogels reinforced by oxidized polyacrylonitrile (PAN) fiber felts. The RF aerogel composites were obtained by impregnating PAN fiber felts with RF sols, then aging, ethanol exchanging, and drying at ambient pressure. Upon carbonization, the PAN fibers shrink with the RF aerogels, thus reducing the difference of shrinkage rates between the fiber reinforcements and the aerogel matrices, and resulting in C/CAs without any obvious cracks. The three point bend strength of the C/CAs is 7.1 ± 1.7 MPa, and the thermal conductivity is 0.328 W m(-1) K(-1) at 300 °C in air. These composites can be used as high-temperature thermal insulators (in inert atmospheres or vacuum) or supports for phase change materials in thermal protection system.

  • Low Density: Carbon aerogels have an incredibly low density due to their high porosity. As a result, composites incorporating carbon aerogels will generally be lightweight.
  • High Surface Area: The porous nature of carbon aerogels results in a large surface area, which can be advantageous for certain applications.
  • Good Thermal Insulation: Carbon aerogels are known for their excellent thermal insulating properties, making them useful in applications where heat resistance is essential.
  • Mechanical Strength: While carbon aerogels are generally fragile, their mechanical strength can be improved when used as part of composites.

 

Applications of Carbon Fiber Reinforced Aerogel Composite | WedGel CAC350

  • EV Batteries Insulation and Fire Protection.
  • High strength Insulation application.
  • Automotive Noise, Heat and Vibration Liners.
  • Welding Drapes and Heat Insulating Blankets.
  • Flame and Electric Arc Resistant Apparel.
  • Acoustical, Heat and Flame Resistant Insulation.
  • Heat and Thermal Protective Apparel.
  • Runaway Thermal Barriers for Electric Vehicle Batteries.
  • Heat and fire protection in Electric Vehicle Batteries.
  • High performance Insulation gaskets.
  • Cold Box, Shipping Boxes, Cold Rooms.
  • Cold chain transportation vehicles.
  • Cold storage, shipping containers.
  • Heat insulation protection between battery cells.
  • Industrial containers, pipes, and for the shell.
  • Phase change materials in thermal protection system.

 

Technical Properties

QualityWedGel CAC350
TypeRoll, Sheet
Service temperature, ºC350
ColourBlack
Thickness, mmJan-25
Short term Temperature Resistance, ºC1200
Density, kg/m3150 - 210
Compression Strength, MPa1.75
Thermal conductivity 
W/m.K at 25°C0.021
W/m.K at 100°C0.023
W/m.K at 200°C0.028
W/m.K at 300°C0.035
W/m.K at 350°C<0.04
Hydrophobicity GB/T 10299‐2011 %>93
Complies with ROHS regulationComplies
Banned Substances in VehiclesNone
Flammability Rating, UL 94‐2013UL94‐V0
Halogen ContentNone
Coverings OptionsAs required
Flashover without breakdown, Leakage current ≤1mA3820V DC, 60s
Insulation Resistance 2500V DC, 60s ≥500MΩ

Carbon Fiber Reinforced Aerogel Composite | WedGel CAC350

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