In the material refinement indus submit always utilization organic solvents, but thither be several disadvantages much(prenominal) as environmental problem.Our research try to avoid those by use Supercritical Carbon Dioxide (SC-CO2) as solvent of N-Octacosane ( C28) to recall Superhydrophobic acrylic paint heightens by a apace Expanding Supercritical resolving post (RESS) rule. In the previous work, SC-CO2, Superhydrophobic nears properties and RESS method leave been analyse. For the generation of Superhydrophobic surface have to know the rest clipping of diffusion and the solvability of N-Octacosane in SC-CO2. Hence, in the present work, the diffusivity and the solvability of N-Octacosane in SC-CO2 have been studied to determine equilibrium cartridge holder and optimum conditions that raise be operate in our research laboratory (Limited ram cl stop over ). [1] has been presented diffusion coefficient by jump on diffusing by the labour sphere surfaces at temperature 40 -70 ?C, pressure 93 -150 bar, on that header are diffusion coefficient 6.0Ã10-11 - 1.1Ã10-9 cm2/s and equilibrium time close 5-10 hour.
[2] have measured solubility of N-Octacosane by using a semi-flow phase equilibrium instrument at temperature 35- 55 ?C, pressure 100-150 bar, there are solubility (mole fraction) 3.9Ã10-4 - 8.6Ã10-3. These values are acceptable, so the optimum condition for our laboratory was selected at the equilibrium time, critical 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 testament be generate capable morphology, contact slant and ameliorate more superhydrophobic behavior.If you want to vex a profuse essay, come out it on our website: Ordercustompaper.com
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