Table 6 Statistical data on the percentage change of viscosity enhancement of HNLs
HNL | \(\mathrm{SR}\)(s−1) | T (°C) | \((\frac{{{\varvec{\mu}}}_{{\varvec{n}}{\varvec{f}}}-{{\varvec{\mu}}}_{{\varvec{b}}{\varvec{f}}}}{{{\varvec{\mu}}}_{{\varvec{b}}{\varvec{f}}}})\) % | |||
|---|---|---|---|---|---|---|
\(SVF=0.05\mathrm{\%}\) | \(0.1\mathrm{\%}\) | \(0.75\mathrm{\%}\) | \(1\mathrm{\%}\) | |||
MWCNT-Al2O3 (25–75%)/10W40 | 3999 (300 rpm) | 5 | − 1.85 | 3.86 | 15.56 | 25 |
15 | 0.29 | 5.44 | 16.91 | 24.93 | ||
25 | 0.91 | 6.17 | 18.45 | 23.71 | ||
35 | 2.79 | 7.71 | 18.90 | 24.83 | ||
6665 (500 rpm) | 15 | − 1.15 | 4.67 | 16.20 | 24.39 | |
25 | 0.29 | 5.30 | 16.50 | 22.70 | ||
35 | 1.77 | 5.33 | 16.35 | 23.57 | ||
45 | 1.96 | 9.30 | 18.06 | 22.71 | ||
55 | 8.80 | 6.99 | 24.35 | 25.38 | ||
MWCNT-Al2O3 (30–70%)/10W40 | 3999 (300 rpm) | 5 | 2.85 | 8.86 | 22.14 | 31.29 |
15 | 4.44 | 8.85 | 21.57 | 30.13 | ||
25 | 5.26 | 8.77 | 20.63 | 28.91 | ||
35 | 6.93 | 9.73 | 21.58 | 30.08 | ||
6665 (500 rpm) | 15 | 3.69 | 8.37 | 21.05 | 30.05 | |
25 | 4.18 | 8.66 | 19.86 | 28.52 | ||
35 | 5.33 | 9.71 | 21.32 | 28.43 | ||
45 | 6.61 | 11.27 | 21.46 | 29.51 | ||
55 | 5.95 | 11.65 | 26.42 | 34.97 | ||