Sample
Name
Embedded/polished cellulose pellet pyrolyzed at 400°C
Date
1997-01-01
Surface roughness
polished
Substrate material
epoxide resin (epofix)
Substrate comments
sample rear side embedded in resin (25mm diam.) for handling during polishing and measurement
Comments
original pellet diameter was 13mm, pellet mass 0.06g, volume loss 50-80% during pyrolysis
Temperature
300.0 $\pm$ 5.0 $K$
Temperature max
673.0 $\pm$ 5.0 $K$
Time at Tmax
120.0 $min$
Type
ambient air
Fluid temperature
300.0 $\pm$ 5.0 $K$
Fluid pressure
1.0 $bar$
Title
Pyrolysis of cellulose pellets

Precursors

Matters

Produced sample

Sample
Embedded/polished cellulose pellet pyrolyzed at 400°C (this sample)
Processing steps
Step Chronology Date Type Process Changes
#1 during layer formation pressure 0.06g of cellulose powder are pressed in a pressing tool of 13mm diameter under 2 tons load
#2 after layer formation pressure pellets were outgassed in vacuum (pressure 0.01 mbar) for 3 hours
#3 after layer formation thermal pellets were heated (180K/h) to 400°C under Ar atmosphere, kept for 2 hours at reaction temperature, cool-down at 180K/h release of volatile elements and groups
#4 after layer formation mechanical pellet rear side was embedded in epoxy resin (25mm diam.), after that the front side was polished