Repo Dosen ULM
Search
Login
Repo Dosen
→
Universitas Lambung Mangkurat
→
Artikel / Jurnal
→
Search
JavaScript is disabled for your browser. Some features of this site may not work without it.
Search
Filters
Use filters to refine the search results.
Current Filters:
Title
Author
Subject
Date issued
Has File(s)
Filename
File description
Contains
Equals
ID
Not Contains
Not Equals
Not ID
Title
Author
Subject
Date issued
Has File(s)
Filename
File description
Contains
Equals
ID
Not Contains
Not Equals
Not ID
Title
Author
Subject
Date issued
Has File(s)
Filename
File description
Contains
Equals
ID
Not Contains
Not Equals
Not ID
New Filters:
Title
Author
Subject
Date issued
Has File(s)
Filename
File description
Contains
Equals
ID
Not Contains
Not Equals
Not ID
Showing 2 out of a total of 2 results for collection: Artikel / Jurnal.
(0.004 seconds)
Now showing items 1-2 of 2
1
Sort Options:
Relevance
Title Asc
Title Desc
Issue Date Asc
Issue Date Desc
Results Per Page:
5
10
20
40
60
80
100
MODELING ANALYSIS OF THE EFFECT OF THE MAIN ROLLHOOP LENGTH ON THE STRENGTH OF FORMULA STUDENT CHASSIS
Siswanto, Rudi
;
Subagyo, Rachmat
;
Isworo, Hajar
;
Gapsari, Femiana
(
Eastern-European Journal of Enterprise Technologies
,
2019-08-15
)
Physical and chemical mechanisms of hydrophobicity of nanoparticle membranes (Mg+Al2 O 3 ) Wahyudia , R. Subagyob,*, F. Gapsaric a Department of Mechanical Engineering, Faculty of Engineering,Universitas Muhammadiyah Yogyakarta, Brawijaya street, Kasihan, Bantul, Yogyakarta, 55183, Indonesia b Mechanical Engineering Department, Engineering Faculty, University Lambung Mangkurat, Jenderal Achmad Yani Street KM 35.5, Banjarbaru, South Kalimantan, 70714, Indonesia c Mechanical Engineering Department, Engineering Faculty, University Brawijaya, Veteran street No. 16, Malang, East Java, 65145, Indonesia * Corresponding e-mail address: rachmatsubagyo@ulm.ac.id ABSTRACT Purpose: Investigate the hydrophobic, superhydrophobic and hydrophilic properties of Alumina (Al2 O 3 ) and Magnesium (Mg) nanoparticles. Design/methodology/approach: This research was conducted by SEM-EDX analysis of Magnesium and Alumina nanoparticles, observation of gas bubbles when droplets of water contact with membrane surfaces, measurement of surface roughness and detection of Hydrogen gas production using Gas Chromatography. There are eleven compositions (Al2 O 3 :Mg) membranes used in this study, namely: (0:100; 10:90; 20:80; 30:70; 40:60; 50:50; 60:40; 70:30; 80:20; 90:10; and 100:0). Findings: Successfully found an alloy membrane between Alumina (Al2 O 3 ) and Magnesium (Mg) nanoparticles in the composition of Mg:Al2 O 3 (0:100%) having Hydrophobic properties; Mg:Al2 O 3 (50:50%) has Superhydrophobic properties and Mg:Al2 O 3 (100:0%) has hydrophilic properties. Three conditions occur when H2 O droplets come in contact with the membrane layer, namely: hydrophobic conditions when the trapped gas pressure is smaller than the droplet pressure. Superhydrophobic conditions when the trapped gas pressure is equal to the droplet pressure. Hydrophilic conditions occur when the trapped gas pressure is greater than the droplet pressure. Research limitations/implications: This research is limited to the hydrophobic nature of Nano Alumina (Al2 O 3 ) and Magnesium (Mg) membrane particles. Practical implications: Superhydrophobic properties are very suitable to be applied to membranes that are useful for destiny. Originality/value: The novelty of this study is to find the right mixture of nanoparticles of Alumina and Magnesium in a composition that is capable of creating hydrophobic, superhydrophobic and hydrophilic properties. Keywords: Hydrophobic, Superhydrophobic, Hydr
Wahyudi
;
Subagyo, Rachmat
;
Gapsari, Femiana
(
Journal of Achievement in Material and Manufacturing Engineering
,
2019-10-02
)
Now showing items 1-2 of 2
1
Sort Options:
Relevance
Title Asc
Title Desc
Issue Date Asc
Issue Date Desc
Results Per Page:
5
10
20
40
60
80
100
Browse
All of DSpace
Communities & Collections
By Issue Date
Authors
Titles
Subjects
This Collection
By Issue Date
Authors
Titles
Subjects
My Account
Login
Register
Discover
Author
Gapsari, Femiana (2)
Subagyo, Rachmat (2)
Isworo, Hajar (1)
Siswanto, Rudi (1)
Wahyudi (1)
Subject
Hydrophobic, Superhydrophobic, Hydrophilic, SEM-EDX, Gas bubbles, Nanoparticles, Membranes (1)
шасі, проектування та аналіз шасі, моделювання в Autodesk Inventor, зміна дов- жини дуги безпеки, механічні властивості (1)
... View More
Date Issued
2019 (2)
Has File(s)
Yes (2)