Abstract:
PROBLEM TO BE SOLVED: To provide a production method of lyocell-based carbon fiber and carbon cloth, capable of further improving effects of a stabilization step. SOLUTION: There is provided a production method of carbon fiber and carbon cloth, comprising a pretreatment step of soaking treatment in which the lyocell fiber or the lyocell cloth is soaked in a solution containing a silicone polymer and in an aqueous solution containing a flame retardant salt, a stabilizing step, a carbonizing step and a graphitization step. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
Disclosed are a cooling device (200) for high temperature fluid, a flight vehicle (100) having the same and a cooling method for high temperature fluid, the cooling device (200) including a heat exchanger configured such that fluid is introduced therein to be heat-exchanged with a refrigerant, and configured to vaporize the refrigerant by the heat exchange such that the fluid is discharged at temperature close to vaporization temperature of the refrigerant, a compressor connected to the heat exchanger and configured to compress the fluid discharged out of the heat exchanger, a turbine connected to the compressor and configured to expand the fluid compressed in the compressor to lower temperature of the compressed fluid, and a phase change heat exchanger connected to the turbine, storing a phase change material, and configured to cause heat exchange between the phase change material and the fluid discharged out of the turbine so as to control temperature of the discharged fluid, whereby a cooling device (200) capable of minimizing influences by external environments can be achieved.
Abstract:
Disclosed is a method for manufacturing Lyocell based carbon fiber or Lyocell based carbon fabric, and more specifically a method for manufacturing Lyocell based carbon fiber or Lyocell based carbon fabric through the process comprising stabilization, carbonization and graphitization, and a pretreatment step before the stabilization of treating Lyocell fiber or Lyocell fabric by immersing the fiber or the fabric in a solution comprising silicon-based polymer and an aqueous solution comprising flame resistant salt.