Superhydrophobic

In the material coating industry always practice organic solvents, but in that respect be several disadvantages much(prenominal) as environmental problem.Our research try to avoid those by utilize Supercritical Carbon Dioxide (SC-CO2) as solvent of N-Octacosane ( C28) to recall Superhydrophobic acrylic paint heightens by a Rapidly Expanding Supercritical resolving strength (RESS) method. In the previous work, SC-CO2, Superhydrophobic finds properties and RESS method leave been analyze. For the generation of Superhydrophobic surface have to know the residue clipping of diffusion and the solvability of N-Octacosane in SC-CO2. Hence, in the present work, the diffusivity and the solubility of N-Octacosane in SC-CO2 have been studied to determine equilibrium time and optimum conditions that raise be operate in our laboratory (Limited wardrobe cl impede ). [1] has been presented diffusion coefficient by wax diffusing by the fag sphere surfaces at temperature 40 - 70 ?C, pressure 93 -150 bar, there are diffusion coefficient 6.0×10-11 - 1.1×10-9 cm2/s and equilibrium time somewhat 5-10 hour.

[2] have measured solubility of N-Octacosane by using a semi-flow phase equilibrium apparatus at temperature 35- 55 ?C, pressure 100-150 bar, there are solubility (mole fraction) 3.9×10-4 - 8.6×10-3. These values are acceptable, so the optimum condition for our laboratory was selected at the equilibrium time, supercritical conditions of SC-CO2 and below melting point of N-Octacosane are 40 - 55 ?C and 100 -150 bar. We are expected that at those conditions provide be generate suit able morphology, contact slant and mitigate! more superhydrophobic behavior.If you want to get a profuse essay, sight it on our website: BestEssayCheap.com

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