Article Per Year (5 Year)
p-Index From 2021 - 2026
0.92
P-Index
This Author published in this journals
All Journal Jurnal Teknoin Jurnal Sains Materi Indonesia IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Journal of Innovation and Applied Technology Martabe : Jurnal Pengabdian Kepada Masyarakat International Journal of Industrial Research and Applied Engineering Jurnal Kedaymas Prosiding Seminar Nasional Program Pengabdian Masyarakat Sewagati
Rohmannudin, Tubagus Noor
Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : IPTEK Journal of Proceedings Series

 1 
Study of Organic Substance (Myrmecodia pendans) Extraction Using Soxhletation Method as an Organic Inhibitor Rohmannudin, Tubagus Noor; Sulistijono, Sulistijono; Adiyaksa, Muhammad; Chusururi, Mochamad Alvan Mifta
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i4.3848

Abstract

Extract of natural substance is currently being developed as an organic inhibitor. Organic inhibitor can be used to inhibit corrosion rate of metallic material especially steel. The purpose of this study is to analyze the effectiveness of soxhletation extraction methods and the quality of inhibitor of Sarang Semut (Myrmecodia pendans) extract. The variations implemented in this research were the composition of the solvent-material and the content comparison of flavonoid compounds.  The results of Sarang Semut (Myrmecodia pendans) extract inhibitor using soxhletation extraction method was observed qualitatively and quantitatively This research used soxhletation extraction method, simplicia Sarang Semut (Myrmecodia pendans) powder as the organic substance, and a mixture of acetone and distilled water as the solvent. Ratio variation of the solvent-substance composition used are 1:10, 1:15, and 1:20. Tests used in this study were Extract Parameters, FTIR, TLC and UV-Vis Spectrophotometry and weight loss. The highest yield was shown when using 1:10 ratio which was 13.943%, the total ash content and the lowest extracted water content shown at a ratio of 1:10 with amount of 4.26% and 4.2483%. FTIR test results indicated functional groups of flavonoids compounds and TLC test showed positive results of Flavonoid compounds which were characterized by blackish discoloration. The highest percentage of flavonoid compounds of 0.22025% found at the 1:10 ratio. The highest efficiency inhibition happened when weight loss testing showed 500ppm with the result of 84.3%.
Scratch Area Effect in Coating to Protection Current Needing in ICCP System for AISI 1045 Steel in Sea Water Environment Dewanti Dewanti; Tubagus Noor Rohmannudin; Sigit Tri Wicaksono
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.288

Abstract

Every metal always going back to its oxide form. Steel which are oxidized having lower quality than steel which are not. Oxidizing steel will going faster if it is placed in corrosive environment. Sea water is one of the environment that support the oxidizing process. Coats are using to protect the steel in sea water. But sometimes there is some failure in coating process so the coat will have scratch damage area. The objective of this experiment is to know how much current needed to protect AISI 1045 steel which have been coated with polyethylene and given scratch area with shape variations, in sea water environment. This experiments is the continuation from the past experiences which is using sacrifice anode, on the other hand, this experiences using Impressed Current Cathodic Protection. Data which are taken from this experiment is the differentiation of potential that measured with electrode reference Cu/CuSO4, and the current measured by avometer. With ICCP system, we know that the corrosion rate in rectangular-shape scratch is faster than circle-shape scratch, and the larger the area of scratch, the larger current needed to protect the coated steel.
Co-Authors Adiyaksa, Muhammad Agung Budi Kurniawan Agung Purniawan Ahada Kuswara, Muhammad Faiq Ridho Alfanda, Benedicta Dian Ardhyananta, Hosta Arini Arini Bintang Ayu Nuraeni Chusururi, Mochamad Alvan Mifta Dewanti Dewanti Diah Susanti Elok Amaylia Swasthika Candra Fakhreza Abdul Faris Putra Ardiansyah Haniffudin Nurdiansah Haniffudin Nurdiansyah Haniffudin Nurdiansyah Hariyati Purwaningsih Kusuma, George Endri Lukman Noerochiem Lukman Noerochim Mavindra Ramadhani Moh. Farid Sulistijono . Sulistijono Sulistijono Sulistijono Sulistijono Sungging Pintowantoro Tua Silaen, Yohannes Marudut Wicaksono, Sigit Tri Widodo, Mochamad Puji Willy Deviet Kusuma Yeny Widya Rakhmawati Yuli Setiyorini Zaid Sulaiman