Fabrication of Superhydrophobic High Density Polyethylebe (HDPE) Using Scraping, Bonding, and Peeling Method
Superhydrophobic surface is one of natural phenomena, which can be found on lotus leaf and water strider’s leg. Superhydrophobic surface is defined as surface with static liquid contact angle of 150° or more. Superhydrophobic surface can be used as self-cleaning material, water repellent, and an...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/33511 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Superhydrophobic surface is one of natural phenomena, which can be found on
lotus leaf and water strider’s leg. Superhydrophobic surface is defined as surface
with static liquid contact angle of 150° or more. Superhydrophobic surface can
be used as self-cleaning material, water repellent, and anti-corrosive.
Superhydrophobic surface commonly fabricated using coating method, but
simple and cheap method such as scraping, bonding, and peeling method can
produce the same result. Scraping, bonding, and peeling method can be applied
on material with intrinsic hydrophobicity, such as High Density Polyethylene
(HDPE). HDPE is commonly used as household chemical container, such as
detergent and bleach. Scraping, bonding, and peeling on HDPE surface can
increase hydrophobicity of HDPE, which can extend its lifetime as household
chemical container.
Scraping, bonding, and peeling methods are used to produce HDPE surface witsuperhydrophobic property. These methods will increase roughness of HDPsurface. According to Wenzel and Cassie-Baxter theories, surface with high
roughness will have high static contact angle between the surface and liquid.
HDPE surface produced from these methods has static contact angle of 94.777°to 118.209°. Those numbers show increase of 4° to 28° compared to untreated
HDPE surface.
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