STUDI EKSPERIMENTAL PEMBUATAN MATERIAL BIOFOAM BERBAHAN DASAR PATI SINGKONG D…

Environmental pollution caused by styrofoam has prompted researchers to develop environmentally friendly packaging. Biofoam, which is made from starch and natural fibers, is an option because it is easily decomposed, safe for health, and made from natural ingredients. This study aims to analyze the effect of varying concentrations of glycerol and polyvinyl alcohol (PVA) on the manufacture of bi…

PENGARUH RAGI TEMPE (RHIZOPUS OLIGOSPORUS) PADA PEMBUATAN MATERIAL BIOFOAM DA…

Biodegradable packaging such as bioplastics and biofoam is becoming an interesting subject and continues to be deepened due to the environmental impact resulting from the abundant use of environmentally unfriendly packaging such as plastic and styrofoam. Biofoam or Biodegradable foam is a packaging that is able to decompose naturally due to the activity of microorganisms, because the main ingre…

ANALISIS SIFAT DIELEKTRIK PADA MATERIAL ISOLASI EPOXY RESIN BERPENGISI SILICO…

This paper aims to analyze the effect of adding silicone dioxide (SiO₂) as a filler on the dielectric properties of epoxy resin. The samples were prepared using Bisphenol A–Epichlorohydrin epoxy resin with SiO₂ filler concentrations of 1; 2; 3; 4; 5 wt%. The tests were conducted using a plate-plate electrode system at a frequency of 50 Hz to measure the relative permittivity, dissipation …

PENGARUH PENGGUNAAN NOZEL 0,6 MM DAN LAYER THICKNESS 0,3 MM TERHADAP KEKUATAN…

Mengolah limbah PET menjadi filamen untuk pencetakan 3D merupakan inovasi yang memberikan dampak besar pada keberlanjutan lingkungan. Prosesnya diawali dengan pengumpulan botol plastik PET bekas, yang kemudian dibersihkan dan dipecah menjadi potongan kecil. Potongan-potongan ini dilelehkan dan diekstrusi menjadi filamen yang dapat digunakan pada printer 3D. Penelitian ini menyoroti isu utama da…

PENGARUH FRAKSI VOLUME KOMPOSIT ALUMINIUM/GRAFIT/ABU TERBANG TERHADAP DENSITA…

Composite materials consist of two or more different materials combined, with the matrix serving as the base material and the reinforcement strengthening the matrix. This study explores the fabrication of composite materials using an aluminum matrix reinforced with graphite and fly ash through powder metallurgy. The goal is to analyze density, porosity, and hardness using the Vickers method, as…

PENGARUH FRAKSI VOLUME SIC–FLY ASH PADA KOMPOSIT ALUMINIUM TERHADAP SIFAT K…

Aluminum is one that is often used at this time, due to the superior properties of the aluminum material itself. However, aluminum itself still has some shortcomings such as limited strength and stiffness. One of the developments of aluminum to improve its properties is by making composite materials. This study aims to vary the volume fraction to analyze the effect of varying the volume fractio…

FABRIKASI MATERIAL BIOFOAM BERBAHAN DASAR AMPAS TEBU DAN RHIZOPUS OLIGOSPORUS…

Styrofoam as a practical alternative to food packaging is very useful. In addition to its practicality, the use of conventional plastics such as Styrofoam is still suitable for packaging with a relatively long shelf life such as meat. However, Styrofoam has a disadvantage, due to the large number of Styrofoam uses, it causes a buildup of waste that is very difficult to decompose. Biofoam is an …

ANALISA KEKUATAN TARIK DAN STRUKTUR MIKRO FILAMEN POLYETHYLENE TEREPHTHALATE …

This research aims to analyze the tensile strength and microstructure of Polyethylene Terephthalate (PET) filaments with variations in infill and speed at a nozzle diameter of 0.4 mm and a layer thickness of 0.2 mm. The research method involves making test specimens using a 3D printing machine, followed by tensile strength testing using a Zwick Roell Z020 tensile tester and microstructure analy…

STUDI FABRIKASI KOMPOSIT HA/KAOLIN BERPORI MENGGUNAKAN SPACE HOLDER MELALUI P…

Salah satu isu lingkungan yang banyak mendapatkan sorotan dari berbagai kalangan adalah isu pemanasan global (global warming). Sejumlah langkah telah diambil untuk mengurangi emisi karbon, seperti adsorpsi oleh bahan penjerap padat. Metode adsorpsi oleh bahan penjerap padat menarik minat penelitian karena mudah diaplikasikan dan ramah lingkungan. Penelitian ini bertujuan untuk menganalisis peng…

PERILAKU KEKUATAN TARIK ENGINEERED CEMENTITIOUS COMPOSITE YANG DIPERKUAT SERA…

Concrete has its characteristic as compressive strength but brittle due to its low tensile and flexural strength. Engineered cementitious composite (ECC) could overcome the shortcomings of conventional concrete by adding a type of synthetic microfibers, namely polypropylene fibers. This study analyzing the effect of adding polypropylene microfibers on the tensile and flexural strength and behav…

PENGARUH CAMPURAN MATERIAL KOMPOSIT PCL-MG-HA TERHADAP KEKUATAN CANGKOK TULAN…

This study investigates the impact of composite materials consisting of Polycaprolactone (PCL), Magnesium (Mg), and Hydroxyapatite (HA) on the strength and degradation ability of synthetic bone grafts. These materials are mixed in various proportions, namely 90% PCL, 70% PCL 50% PCL, using chloroform as a solvent. The primary aim is to produce artificial bone grafts that closely mimic the chara…

PENGARUH TIPE SUBSTRAT TERHADAP SIMPANAN KARBON DI PERAIRAN MUARA SUNGAI BANY…

The Banyuasin River Estuary is formed by the confluence of two rivers, the Banyuasin and Lalan Rivers, located in South Sumatra Province. This estuarine area also serves as a discharge site for industrial and domestic waste and is influenced by various human activities in the surrounding area. This study aims to analyze the sediment characteristics and organic carbon content in the waters of th…

PENGARUH VARIASI TEMPERATUR NORMALIZING TERHADAP NILAI KEKERASAN MATERIAL PAD…

Penelitian ini bertujuan untuk mengetahui pengaruh variasi temperatur terhadap nilai kekerasan material menggunakan mesin uji Vickers pada baja ST 42 yang telah diberi perlakuan Normalizing. Metode penelitian yang digunakan adalah metode penelitian eksperimental dengan tujuan mengetahui sebab akibat berdasarkan percobaan yang dilakukan secara langsung atas perlakuan yang diberikan. Variasi temp…

ANALISIS STRUKTUR MIKRO DAN KEKERASAN HASIL PENGELASAN SHIELDED METAL ARC WEL…

This study aims to analyse the impact of speed and polishing time variations on the microstructure and hardness of AISI 1020 steel produced by Shielded Metal Arc Welding (SMAW). Steel specimens were welded using E7016 electrodes, then polished at speeds of 570 rpm, 750 rpm, and 1043 rpm for 5, 10, and 15 minutes. Evaluation was carried out by observing the microstructure using an optical micros…

ANALISIS STRUKTUR MIKRO DAN KEKERASAN HASIL PENGELASAN SHIELDED METAL ARC WEL…

This study aims to determine the effect of polishing speed and time on the microstructure and hardness of AISI 304 type stainless steel material that has gone through the Shielded Metal Arc Welding (SMAW) method welding process. The main focus of this research is to evaluate how polishing parameters affect surface quality, microstructure appearzmce, and hardness values in the fusion zone, fusio…

ANALISIS PENGARUH KONDISI PENYIMPANAN ELEKTRODA LOW HIDROGEN E7018 TERHADAP C…

This study aims to (1) determine the effect of electrode storage conditions on the resulting welding defects, (2) determine the effect of different electrode storage locations on welding results, and (3) determine what types of welding defects are produced by E7018 electrodes that have been given several treatments. The method used in this study is an experiment, the number of samples made as m…

ANALISA PENGARUH FRAKSI VOLUME SERAT ENCENG GONDOK (EICHORNIA CRASSIPES SOLMS…

Penggunaan dan pemanfaatan serat alam pada saat ini sudah semakin berkembang, khususnya material komposit. Material komposit sendiri tersusun atas dua material atau lebih yang berbeda sehingga perpaduan dari material tersebut diharapkan dapat membentuk material baru yang memiliki sifat-sifat khusus, dimana salah satu dari material gabungan tersebut dinamakan penguat dan material lainnya disebut…

ANALISIS PENGARUH VARIASI FRAKSI VOLUME TERHADAP SIFAT MEKANIK DAN FISIK KOMP…

Composite is a combination of two or more different materials to obtain materials with physical properties and mechanical properties better than any of its constituent components. This study aims to analyze the mechanical properties and physical properties of the composite polyester reinforced silica carbides particles are included in the Composite particles mechanical properties and physical p…

PENGARUH PENGGUNAAN MOLASE DAN TAPIOKA SEBAGAI SUMBER KARBON DALAM PEMBENTUKA…

Biofloc technology is a system of utilizing inorganic nitrogen waste with probiotic bacteria so that it can be eaten by fish. One important component in biofloc is a carbon source such as molasses. However, the use of molasses as a carbon source is difficult to obtain. Therefore, alternative carbon sources are needed, one of which is tapioca starch. This study aims to determine the effect of th…

PENDUGAAN KARBON TUMBUHAN BAWAH DAN SERASAH PADA TANAMAN SAWIT UMUR 14 TAHUN …

Oil palm (Elaeis guineensis Jacq.) is an annual crop that has the potential to absorb carbon emissions. In oil palm plantations, it is common to find weeds of various species that grow under stands of oil palm trees (understory). Undergrowth in oil palm plantations can be a land cover plant as well as a significant carbon store in addition to oil palm plants themselves. This study aims to deter…

PENDUGAAN PENAMBATAN KARBON PADA TANAMAN KELAPA SAWIT UMUR 10 TAHUN DI LAHAN …

Peatlands have great potential for carbon storage but are vulnerable to degradation due to land conversion and fires, which increase carbon emissions into the atmosphere. Oil palm (Elaeis guineensis Jacq.) Can absorb carbon through photosynthesis and store it in biomass. This study aims to estimate the amount of carbon stored in 10 years old oil palm trees in the peatlands of PT. Waimusi Agroin…

PEMBUATAN KOMPOSIT MENGGUNAKAN MATRIK RESIN POLYESTER DIPERKUAT DENGAN LIMBAH…

Fly ash is a solid waste generated from the coal combustion at the electrical generator. Commonly, the waste of the coal combustion was indulged floating in the atmosphere and disposed of as a pile. This problem causes bad effect for the environment and the human health as well. Fly ash is found in a quite large amount so that it causes environmental problems such as air or water pollution and …

KOMPOSIT POLYESTER BERPENGUAT SERAT KULIT KAYU GELAM

Gelam(melaleuca leucandendra) is one plant that is widely available in South Sumatra potential into cellulose extraction. His plant is widely used for building materials and wood products processed the rest of the powder timber furniture industry. While, the skin of this plant is not used for anything. In fact, from the structure of the skin that have fiber, skin of gelam has the potential to b…

Craig's RESTORATIVE DENTAL MATERIALS, FOURTEENTH EDITION

Edition

14

ISBN/ISSN

978-0-323-47821-2

Collation

xii, 340 p.; ill.; 26 cm

Series Title

-

Call Number

617.695 Cra c

STUDI PERHITUNGAN CADANGAN SISA MINYAK BERDASARKAN KURVA PENURUNAN PRODUKSI D…

Untuk menentukan cadangan hidrokarbon suatu reservoir dapat dilakukan dengan metode kurva penurunan produksi (decline curve). Berdasarkan hasil evaluasinya, maka metode kurva penurunan produksi hanya menggunakan data laju produksi, data kumulatif produksi dan waktu produksi. Metode kurva penurunan produksi ini digunakan untuk menentukan Ultimale Recovery, Remaining Reserves, dan Remaining Life.…

NANOMATERIAL ANORGANIK

Edition

-

ISBN/ISSN

978-623-02-5769-8

Collation

viii, 127 hlm. ; 23 cm

Series Title

-

Call Number

620.115 Adl n

MATERIAL KOMPOSIT POLIMER: BERPENGUAT SERAT

Edition

-

ISBN/ISSN

978-623-02-5474-1

Collation

x, 144 hlm.: ilus.; 23 cm.

Series Title

-

Call Number

620.118 Bal m

ILMU DAN TEKNOLOGI BAHAN: Kayu, Batu dan Atap

Edition

-

ISBN/ISSN

978-623-02-2177-4

Collation

x, 209 hlm.; 25 cm

Series Title

-

Call Number

620.11 Apr i

Material Teknik

Edition

-

ISBN/ISSN

978-623-8075-25-6

Collation

xiv, 138 hlm.; 24 cm

Series Title

-

Call Number

620.11 Sul m

PENGEMBANGAN BAHAN AJAR KIMIA HIJAU MATERI PELARUT HIJAU BERBASIS STEM PROBLE…

This research is a development research that aims to produce teaching materials for Green Chemistry Green Solvent Materials based on STEM Problem Based Learning based on steps from Amy Abbot that meet valid and practical criteria for chemistry education students. The development model used is the ADDIE development model combined with Tessmer's formative evaluation. The steps of using ADDIE star…