Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal Teknologi
Cut Aja Rahmawati
Politeknik Negeri Lhokseumawe
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Penambahan Surfaktan Gum Arabic Terhadap Sifat Fisik dan Stabilitas Fluida Nano Titania (TiO2) Yulia Safitri; Irwan Irwan; Cut Aja Rahmawati
Jurnal Teknologi Vol 21, No 1 (2021): April 2021
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (330.815 KB) | DOI: 10.30811/teknologi.v21i1.2207

Abstract

This study aims to examine the physical properties of titania (TiO2) by adding arabic gum surfactants to obtain stable nanofluid. Nano titania fluid preparation was carried out by dispersing titania nanoparticles and arabic gum in a homogenizer for 3 hours with particle variations in fraction volume and arabic gum surfactant concentration. The study was carried out by varying the volume of the particle fraction at 0.1%; 0.2%; 0.3%; 0.4% and 0.5% and arabic gum surfactant concentrations at 1%; 2%; 3%; 4%; and 5%. Measurements are also made at a temperature variation of 30 OC; 40 OC; and 50 OC. Measurement of physical properties is carried out by measuring the properties of electrical conductivity, density, viscosity, and stability of titania nanofluid. The measurement results indicate that the higher the concentration of surfactant and the volume fraction of particles, the electrical conductivity, density, and viscosity of nano titania fluid is increasing. Increased temperature will reduce the viscosity of titania nanofluid.
Penggunaan Amilum sebagai Pelapis Anti Korosi pada Baja Karbon dalam Lingkungan Asam Klorida 0,5 M Muhammad Salahuddin; Irwan Irwan; Cut Aja Rahmawati
Jurnal Teknologi Vol 22, No 1 (2022): April 2022
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v22i1.2876

Abstract

The purpose of this paper was to determine the affect of amylum concentration and immersion time on the corrosion rate. Amylum is used as an anticorrosive coating on carbon steel in 0,5 M hydrochloric acid  environment. Amylum concentration and immersion time affect the corrosion rate. The longer immersion time, the corrosion rate increases while the higher the concentration, the corrosion rate decreases. The highest corrosion rate was obtained at 3.58 mpy while the lowest corrosion rate was 1.24 mpy, Corrosion rates in metals can be prevented by the coating method
Co-Authors Irwan Irwan Irwan Irwan Muhammad Salahuddin Yulia Safitri