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Find equation to express the relation between 3 values?
I have to to estimate the relationship between OTR (cc/m^2/day) & WVTR (g/m^2/day)
WVTR is for water vapor transmission rate
OTR is for oxygen transmission rate
In the two tests, effective surface area of film tested was 10 cm^2
Here is the result I have to find the relation (it's have to include thickness of the plastic film)
plastic 1082 have a thickness of 0.0044 in
WVTR : 4.8
OTR : 120
Plastic 1083 have a thickness of 0.0045 in
WVTR : 0.88
OTR : 2.6
With that, I will find the WVTR value for a plastic of 0.00289 inche and OTR known value
Please show me how to find the relation between thickness, WVTR and OTR
Thanks a lot!
- 1 decade agoFavorite Answer
as thickness increase your WVTR decrease and OTR decrease
Thickness = k 1/ WVTR xOTR ,,k =constant
- Anonymous1 decade ago
Sorry i'm not smart enough for that one!