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

这项实验工作涉及测量由相变材料（PCM）OM 08和多壁碳纳米管（MWCNTs）制成的纳米复合材料的接触角，其中体积浓度分别为0.05％，0.1％，0.3％，0.5％ 。本研究使用两种不同类型的铜基板，即带有和不带有喷砂处理的铜板。可以确定，随着体积浓度的增加，纳米复合材料的液滴接触角增加。同样，在较高的MWCNT体积浓度下，液滴接触角的增加更为明显。MWCNT的体积百分比为0.5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°。