Superhydrophobic

In the material coating industry always make use of organic solvents, but in that location 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 acrylate resin heightens by a Rapidly Expanding Supercritical resolving force-out (RESS) method. In the previous work, SC-CO2, Superhydrophobic grows 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 constrict cl lug ). [1] has been presented diffusion coefficient by wax diffusing by the pickle sphere surfaces at temperature 4 0 -70 ?C, pressure 93 -150 bar, there are diffusion coefficient 6.0×10-11 - 1.1×10-9 cm2/s and equilibrium time approximately 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, 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 ordain be generate suitable morphology, contact slant and make better more superhydrophobic behavior.If you want to get a profuse essay, narrate it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay