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Table 14 Permeability and permeance and associated relative humidity of the coatings I5 (S + T + H + Pr + Pa + O + V) from the I-series calculated from the measured g

From: Hygro-mechanical short-term behaviour of selected coatings: experiments and material modelling on vapour permeability and mechanical properties

Climate

 

\({t}_{tot} [\mu \mathrm{m}]\)

\(RH [\%]\)

\(\delta \left[\frac{\mathrm{kg}\cdot \mathrm{m}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\right]\)

\(W \left[\frac{\mathrm{kg}}{\mathrm{Pa}\cdot {\mathrm{m}}^{2}\cdot \mathrm{s}}\right]\)

RH 0% / 50%

58

930

25.4

\(4.59\cdot {10}^{-14}\)

\(4.94\cdot {10}^{-11}\)

59

820

25.3

\(3.35\cdot {10}^{-14}\)

\(4.09\cdot {10}^{-11}\)

60

790

25.3

\(3.50\cdot {10}^{-14}\)

\(4.43\cdot {10}^{-11}\)

RH 85% / 50%

64

870

66.6

\(2.23\cdot {10}^{-13}\)

\(2.56\cdot {10}^{-10}\)

65

800

66.7

\(1.84\cdot {10}^{-13}\)

\(2.30\cdot {10}^{-10}\)

67

890

66.5

\(2.61\cdot {10}^{-13}\)

\(2.94\cdot {10}^{-10}\)

RH 95% / 50%

61

880

70.3

\(5.93\cdot {10}^{-13}\)

\(6.74\cdot {10}^{-10}\)

62

690

70.8

\(3.68\cdot {10}^{-13}\)

\(5.34\cdot {10}^{-10}\)

63

970

71.0

\(4.26\cdot {10}^{-13}\)

\(4.40\cdot {10}^{-10}\)