ABSTRACT

This experimental work deals with the measurement of the contact angle of the nanocomposites made of phase change material (PCM) OM 08 and multi-wall carbon nanotubes (MWCNTs) with different volume concentrations namely, 0.05%, 0.1%, 0.3%, 0.5%. Two different types of copper substrate, namely copper plate with and without shot blasting, were used in this study. It was identified that the droplet contact angles of the nanocomposites were increased with the increase in volume concentration. Also, an increase in the droplet contact angle was more predominant at the higher volume concentration of MWCNTs. The nanocomposite with 0.5 vol.-% of MWCNT has a maximum droplet contact angle of 42.1° and 40.01° respectively on the normal and SBS copper substrate. The use of the highly roughed SBS effectively reduced the contact angle of the nanocomposite by 2° and 2.3° during the first and second passes respectively.

摘要

本实验工作涉及测量由不同体积浓度即 0.05%、0.1%、0.3%、0.5% 的相变材料 (PCM) OM 08 和多壁碳纳米管 (MWCNT) 制成的纳米复合材料的接触角. 本研究中使用了两种不同类型的铜基板，即带喷丸和不带喷丸的铜板。确定纳米复合材料的液滴接触角随着体积浓度的增加而增加。此外，在 MWCNT 的体积浓度较高时，液滴接触角的增加更为显着。含有 0.5 vol.-% MWCNT 的纳米复合材料在普通和 SBS 铜基板上的最大液滴接触角分别为 42.1° 和 40.01°。