Experimental Investigation on Thermophysical Performance of BN/EG Nanofluids Influenced by Dispersant

Boron nitride/ethylene alcohol (BN/EG) nanofluid was synthesized by two-step method. The effect of dispersant on stability, viscosity and thermal conductivity enhancement was investigated. The experimental results indicated that the addition of anionic dispersant (SHMP) and catioic dispersant (CTAB) will induce the severe deterioration of stability of BN/EG nanofluids. PVP, which belonging to non-ionic dispersant, can improve the stability and fluidity obviously besides keeping the enhancement of thermal conductivity.