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VGCF
  VGCNF
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   

   

   
 
 
 

Catalytic Chemical Vapor Deposition (CCVD) or simply Chemical Vapor Deposition (CVD) with variants like thermal and plasma-assisted is the dominant commercial technique for the fabrication of VGCF and VGCNF. Here, gas-phase molecules are decomposed at high temperatures and carbon is deposited in the presence of a transition metal catalyst on a substrate where subsequent growth of the fiber around the catalyst particles is realized. In general, this process involves separate stages such as gas decomposition, carbon deposition, fiber growth, fiber thickening, graphitization, and purification and results in hollow fibers. The nanofiber diameter depends on the catalyst size. The CVD process for the fabrication of VGCF generally falls into two categories: 1) fixed-catalyst process (batch), and 2) floating-catalyst process (continuous).


Ultra long Vapor-grown Carbon Fiber

Shortened form VGCF
Diameter: 40nm~1μm
Length: 1~10 cm
Length-diameter Ratio(L
/D): 5x104~5x105
Total carbon content: 99%
True density: 2.0 g
/
cm3  
BET specific surface area: 10 g
/
cm3  
Electrical resistivity: 1*10-4Ω. Cm

Application: Carbon fiber is easy to get equably pre-mixed matters before modeling, which is applicable for a variety of thermoplastic and thermoset resinic lubricants and a variety of carbon fiber enhanced plastic granule and products with different capabilities such as paper making, plastic field, heat preservation, architecture, enhanced concrete and etc.

 
Fracture Toughness of Vapor Grown Carbon Nanofiber-Reinforced Polyethylene Composites
Production and characterisation of vapour grown carbon fiber/polypropylene composites
Mechanical Strength of Pyrolytically Stripped and Functionalized Heat Treated Vapor Grown Carbon Nanofibers
 


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