Abstract
A superhydrophobic coating with excellent water repellence and gamma irradiation resistance was obtained by multi-walled carbon nanotubes (MWCNTs) modification. The effects of MWCNTs on the mechanical behaviour, water contact angle (WCA) and self-cleaning properties of the coatings were investigated. After 1.23×107rad dose of gamma irradiation, WCA of the coating without MWCNTs modification (EPPM0) decreases from 150° to 140° and the adhesion reduces from 5B to 4B, respectively. While the coating (EPPM3) with 3wt% MWCNTs modification remains high WCA (152°), excellent adhesion (5B) and hardness (6H). The results of dust removal test suggest that the coating still maintains self-cleaning property after high dose gamma irradiation.
Highlights
CharacterizationThe adhesion and hardness of the coating were assessed according to EN ISO 2409-2013 and EN ISO 151842012 standards, respectively
The adhesion and hardness of the composite coatings with different amounts of multi-walled carbon nanotubes (MWCNTs) are showed in Figure 1 and Figure 2
The hardness of all composite coatings (EPP0 ~ EPPM3.5) is as high as 6H, indicating that the amount of MWCNTs has no influence on the hardness of the composite coating
Summary
The adhesion and hardness of the coating were assessed according to EN ISO 2409-2013 and EN ISO 151842012 standards, respectively.
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