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liquid diffusion table
The figures shown are a small selection of the available experimental figures. If you are interested in an industrial application of the tabled figures, go to "cases on diffusion" in the upper menu bar.

Process Conditions
System Temperature:
37 degrees Celsius
System Pressure:
1 Bar
Activity of Permeant:
100%
 
Polymer
Permeant
(liquid)
Solubility
(liquid)
D0*

D|**
Permeability
[-]
[-]
m3 / m3
m2 / s
m2 / s
[m3 / m3] x [m2/s]
gram / m s
Thermosets
 
Unsaturated Polyester Resin
100% amorphous
Water
0.011
4 10-12
4 10-12
4 10-14
4 10-8
Methanol
0.12
1 10-13
6 10-13
8 10-14
6 10-8
Toluene
0.21
3 10-15
1 10-13
2 10-14
2 10-8
Gasoline
0.17
5 10-15
8 10-14
1 10-14
1 10-8
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|
|
|
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Novolac Vinyl
Ester Resin
100% amorphous
read case on methanol in
VE Resin
Water
0.013
1 10-12
1 10-12
1 10-14
1 10-8
Methanol
0.16
4 10-14
5 10-13
8 10-14
6 10-8
Toluene
0.12
1 10-15
6 10-15
7 10-16
6 10-10
Gasoline
0.10
2 10-15
9 10-15
9 10-16
7 10-10
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|
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Bisphenol-A
Epoxy Resin
100% amorphous
read case on
gasoline in
Epoxy Resin

Water
0.015
9 10-13
9 10-13
1 10-14
1 10-8
Methanol
0.16
2 10-14
3 10-13
5 10-14
4 10-8
Toluene
0.15
1 10-15
5 10-15
8 10-16
7 10-10
Gasoline
0.05
1 10-15
2 10-15
1 10-16
9 10-11
Thermoplast
HDPE
77% crystalline
read case on
gasoline in
HDPE
Water
0.0002
1 10-11
1 10-11
2 10-15
2 10-9
Benzene
0.10
7 10-13
9 10-12
1 10-12
9 10-7
Toluene
0.11
6 10-13
1 10-11
1 10-12
1 10-6
Styrene
0.10
4 10-13
5 10-12
6 10-13
5 10-7
Gasoline
0.09
6 10-13
6 10-12
5 10-13
4 10-7
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*.. D0 is the "zero concentration" mutual diffusion coefficient interpreted on basis of Fick's 1st & 2nd Laws.
** D| is the "weighted average" mutual diffusion coefficient interpreted on basis of Fick's 1st & 2nd Laws.
 
   

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