Fabrication of superhydrophobic coating for polystyrene foam using nano silica | |
| Author | Maurya, Aujaswi Kumar |
| Call Number | AIT RSPR no.ISE-20-01 |
| Subject(s) | Silica fume Hydrophobic surfaces Polystyrene--Additives Wetting |
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Nanotechnology, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. ISE-20-01 |
| Abstract | Extruded polystyrene foam is a widely used material in floating solar cells farms due to its buoyancy property. The problem arises when it is used in a wet environment, the water seeps into the air pockets and degrades the material. The aim of this research was to make the extruded polystyrene foam water repellent thereby increasing the mechanical stability. This was achieved by spray coating the material with nano silica which was modified and then sprayed to achieve a rough, low energy surface. The key findings of the research were that nano silica when coated on acrylic primed surface behaves as super hydrophilic but exhibits super hydrophobicity when coated on Styrofoam directly. The superhydrophobic surface on Styrofoam was only exhibited when the concentration of nano silica reaches to 2% wtlwt. SEM was done to characterize the . surface morphology which showed the roughness and density of nano silica on the surface at different concentrations. The nano silica coated non- primed Styrofoam absorbed the least amount of water with the highest compressive strength when submerged for 8 days underwater. Exposure of the samples to light caused increase in water absorption and decrease in the compressive strengths of all the samples. |
| Year | 2020 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. ISE-20-01 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Bora, Tanujjal; |
| Examination Committee(s) | Hornyak, Gabriel Louis;Loc Thai Nguyen; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Research report (M. Eng.) - Asian Institute of Technology, 2020 |