KARAKTERISASI SIFAT PERLINDUNGAN KEAUSAN PELUMAS SAE 10W-30 DENGAN PENAMBAHAN NANO ADITIF MoS2SEBAGAI
PEMODIFIKASI GESEKAN
ABSTRAK
Telah dilakukan penelitian karakterisasi minyak pelumas SAE 10W-30 dengan penambahan nano aditifMolibdenum Disulfida (MoS2)sebagai pemodifikasi gesekan. Penelitian ini menggunakan surfaktan sodium dodesil sulfat (SDS) untuk mencegah terjadinya endapan atau aglomerasi partikel MoS2 ketika mesin dingin.Konsentrasi optimum MoS2 0,1% berat dan SDS 0,2% berat, didapatkan dari memvariasikan konsentrasi sebanyak 12 variasi. Pengujian menggunakan 2 instrumen uji yaitu four-ball scar diameter dan HFRR(High-Frequency Reciprocating Rig).Hasil pengujianfour-ball scar diametertanpa nano aditif sebesar 0,31 mm dan dengannano aditif sebesar 0,26 mm, atau 16% memperkecil
scar diameter. Hasil uji HFRRwearscartanpanano aditif sebesar 167,5 µm dan dengannano aditifsebesar 96 µm, atau 42,7% memperkecil wear scar. Sedangkan hasil uji HFRR frictiontanpa nano aditif sebesar 0,124 dan dengannano aditifsebesar 0,122 atau 1,61% menurunkan koefisiengesekan.
Kata kunci : SAE 10W-30, nano aditif, surfaktan, molybdenum disulfide, sodium dodesil sulfat,four-ball scar diameter, HFRR(High-Frequency Reciprocating Rig).
CHARACTERIZATION WEAR PROTECTION of LUBRICATINGOIL SAE 10W-30 with NANOPARTICLE ADDITIVE MoS2as FRICTION
MODIFIER
ABSTRACT
Had been done research of characterization wear protection of lubricating oil SAE 10W-30 with nanoparticle additive Molybdenum disulfide (MoS2) as friction
modifier. The research used surfactant sodium dodesil sulfate (SDS) to prevent sedimentation or agglomeration nanoparticle MoS2 when the engine is cold. The
most optimal composition of nano additive MoS2 0.1%weight andSDS 0.2
%weight (wt%), obtained with varying the samples with 12 diffrent samples composition. The test used with 2 instruments test, fourball scar diameter and HFRR(High-Frequency Reciprocating Rig). The results of Fourball scar diameter test: without nano additive 0.31 mm and with nano additives 0.26 mm, or 16% increase protection scar diameter. The results of HFRR(High-Frequency Reciprocating Rig) wear scar test: without nano additive 167.5 µm and with nano additives 96 µm, or 42.7% reduce the value of wear scar. The results of HFRR friction test: without nano additive 0.124 andwith nano additives MoS20.122, or
1.61% reduce the value of friction.
Keywords: SAE 10W-30, nano additives, molybdenum disulfide (MoS2), sodium dodesil sulfate (SDS), Four-Ball, HFRR.
