Table 3

Surface tension ratio of two kinds of nanofluids to the base fluid

Mass concentration

(wt.%)

Functionalized nanofluid

(20°C)

Functionalized nanofluid

(40°C)

Functionalized nanofluid

(60°C)

Traditional nanofluid

(20°C)


0.5

0.72278

0.71

0.697

0.7858

1

0.71875

0.704

0.686

0.779

1.5

0.71903

0.701

0.684

0.77373

2

0.70833

0.69

0.676

0.765

2.5

0.7125

0.693

0.678

0.759


Yang and Liu Nanoscale Research Letters 2011 6:494   doi:10.1186/1556-276X-6-494

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