Nurcahyo, Bayu Iman (2015) THE INFLUENCE OF ADDITION CONCENTRATION OF SURFACTANT ABS (ALKYLBENZENE SUFONATE) ON SURFACE TENSION VALUES OF 4 STROKE ENDURO LUBRICANTS. S1 thesis, Universitas Negeri Yogyakarta.
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Abstract
The aim of this research is to determine the effect of ABS (Alkybenzene Sulfonate) surfactant molarity on the surface tension of the lubricant 4 stroke Enduro, and to determine the effect of ABS surfactant volume fractions on the 4 stroke enduro lubricant surface tension. To determine the value of the surface tension of the lubricant 4 stroke Enduro used Du Nouy ring method. The surfactant used is ABS with a concentration of 0.5 M, 0.75 M and 1 M at each concentration in the input into the lubricants with volume fractions is 2%, 4%, 6%, 8%, 10 %, 15%, 20%, 25%, and 30%. The results show that the smaller the surfactant molarity the higher the surface tension of Enduro 4 stroke lubricant. However there are some mismatches.This may be due to the creation of small agregates or posibly inverse micelles. The motion of these agregates causes the concentration of surfactant moleculs around the surface to fluctuative. This fluctuation of concentration of surfactant molecules also causes the surface tension to fluctuate. The same reason goes to surface tension fluctuation due to the additional of volume fraction.
| Item Type: | Thesis (S1) |
|---|---|
| Uncontrolled Keywords: | 4 stroke engine lubricants, surfactants, and Surface Tension |
| Subjects: | Matematika dan Ilmu Pengetahuan Alam > Fisika |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Pendidikan Fisika > Pendidikan Fisika |
| Depositing User: | Admin Fisika FMIPA |
| Date Deposited: | 06 Apr 2015 00:45 |
| Last Modified: | 29 Jan 2019 19:26 |
| URI: | http://eprints.uny.ac.id/id/eprint/13954 |
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