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All Journal Jurnal Teknik Industri Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Prosiding Seminar Nasional Teknoka Logic : Jurnal Rancang Bangun dan Teknologi International Journal of Engineering and Emerging Technology
NPG Suardana
Program Studi Teknik Mesin, Fakultas Teknik Universitas Udayana
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics

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Pemanfaatan Limbah Serbuk Kayu Sebagai Penguat Pada Matriks Getah Pinus-Epoxy Dan Dengan Dan Tanpa Perlakukan NaOH putri kusuma kencanawati; NPG Suardana; I Ketut Gede Sugita
Jurnal Energi Dan Manufaktur Vol 6 No 01 (2023): April 2023
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2023.v16.i01.p02

Abstract

The use of wood as the main material for making furniture is one of the causes of the increasing amount of sawdust waste. Efforts that can be made to reduce the amount of wood waste is to use it as a raw material for the manufacture of particleboard/composite material. The manufacture of particleboard is currently still using synthetic materials that are difficult to degrade by nature (non-biodegradable). Therefore, in this study using materials that can be naturally degraded (biodegradable), namely using sawdust waste which is treated with immersion with variations of NaOH (5%, 7.5% and 10%) for 1 hour first to remove dirt on the soil. powder, then mixed with pine resin/epoxy matrix with a composition of wood powder (10%, 15%, and 20%). Furthermore, physical tests will be carried out, namely density and water absorption as well as bending tests in accordance with ASTM D790-03. Manufacture of composite wood powder/pine sap/epoxy hand lay up method in the process. The results of the bending test showed that the highest bending stress was in the composition of sawdust: matrix (15:85) immersed in 5% NaOH, which was 79.22 MPa. The highest strain value in the composition of sawdust: matrix (20:80) without NaOH immersion was 0.088 and the highest modulus of elasticity was in the composition 15:85 with 5% NaOH immersion which was 744 MPa. Density test showed that the highest density value was found in the composition of 20;80 5% NaOH immersion with a density value of 1.088 gr/cm3, the smallest density value was in the composition of 10;90 10% NaOH immersion of 1.021 gr/cm3. In the water absorption test, the highest value was shown in the composition of 20:80 immersion in 10% NaOH with a value of 17.59% and the lowest value was shown in the composition of 10:90 without immersion in NaOH with a value of 6.81%. The results of this study indicate that the increase in the value of stress, strain and modulus of elasticity from the bending test is influenced by the concentration of alkaline solution, where the more concentrated the NaOH content, the bending strength and density will decrease but inversely proportional to water absorption.
Efek gaya tekan pembuatan hibrid komposit berpenguat SiCw/Al2O3 dengan wetting agent Mg terhadap sifat fisik dan mekanik Suarsana, K.; Suardana, N.P.G.; Negara, D.N.K.P.; Sunu, P.W.; Triadi, A.A.A.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 11, No 1 (2021): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.243 KB) | DOI: 10.29303/dtm.v11i1.368

Abstract

The growing demand for metal-based materials in the manufacturing industry has prompted the development of composite materials that have better mechanical and physical properties than single materials. The development be done in order to obtain new materials that have better properties. The research was conducted using a powder metallurgy process, by varying the compressive force and holding time in order to determine the effect of the combination of compression and holding time on the mechanical and physical properties of composites. The variations in the compressive force are 20, 25, and 30 kN, with a holding time of 15, 30 and 45 minutes for each force. Research includes tests of density, porosity, hardness, wear and Scanning Electronic Microscope. The results of the density test showed that the highest density value was 2.982 gr/cm3 and the lowest porosity value was 13.074% at a compressive force of 25 kN, holding time of 45 minutes. The results of the highest hardness value 53.455  kg/mm2 at 30 kN, 45 minutes and the lowest wear value 2.15455E-05 gr at a pressure of 20 kN, 15 minutes. Based on the test results, the characteristics of the density are inversely proportional to the porosity, while the hardness and wear are influenced by the length of holding time in the moldof a composite using aluminum as a matrix needs too.
Co-Authors A.A.A. Triadi, A.A.A. Aldri Frinaldi Cok Istri Putri Kusuma Kencanawati I Gede Putu Agus Suryawan I Ketut Adi Atmika I Ketut Adi Sugita I Ketut Jaya Lagawa I Ketut Suarsana I Made Gatot Karohika I Made Widiyarta I Made Widyarta I Nyoman Budiarsa . I Nyoman Suarsana I Nyoman Suprapta Winaya I W BUDIARSA SUYASA I W. Y. Swara I Wayan Gede Arthana I Wayan Surata IWY Swara l Gusti Ngurah Janardana Nanda - Negara, D.N.K.P. Ni Made Dwidiani putri kusuma kencanawati Putu Lokantara Rizki Andika Putra Robby GDS Steven FS Suarsana, K. Sunu, P.W. Yustinus Hendro Mudiyarto