2.5. Porosity Measurement

MF Mark D. Francisco
CP Cheng-Tang Pan
BL Bo-Hao Liao
MW Mao-Sung Wu
RY Ru-Yuan Yang
JC Jay CJ Chu
ZW Zhi-Hong Wen
CL Chien-Feng Liao
YS Yow-Ling Shiue
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The porosity measurement was undertaken using the n-butanol impregnation method [16]. The membrane was first immersed in n-butanol for one hour. Subsequently, porosity was calculated using the porosity equation shown in Equation (1), where ma is the mass of n-butanol; ρa is the density of n-butanol; mb is the mass of the membrane; and ρb is the density of the membrane.

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