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All Journal Jurnal Kimia dan Kemasan Jurnal Teknik Mesin
Rohmad Salam, Rohmad
Pusat Teknologi Bahan Industri Nuklit-BATAN Kawasan PUSPIPTEK Serpong, Tangerang 15314, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Mechanical Engineering

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Pembuatan Bahan Polimer Elektrolit Padat Berbasis Nanokomposit Kitosan Montmorillonite Untuk Aplikasi Baterai Yulianti, Evi; Saputri, Rosiana Dwi; Sudaryanto, Sudaryanto; Jodi, Heri; Salam, Rohmad
Jurnal Kimia dan Kemasan Vol. 35 No. 2 Oktober 2013
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (937.378 KB)

Abstract

Telah dilakukan pembuatan bahan polimer elektrolit padat berbasis nanokomposit kitosan montmorillonite yang diaplikasikan dalam sistem baterai. Penelitian ini dilakukan dengan tujuan untuk menentukan komposisi optimal antara kitosan, montmorillonite dan LiClO4 sehingga diperoleh membran dengan karakteristik yang paling baik. Teknik pembuatan membran dilakukan menggunakan metode casting. Terdapat dua seri sampel yang akan di uji, yaitu membran dengan variasi komposisi montmorillonite dan variasi komposisi LiClO4. Komposisi kitosan dan montmorillonite yang digunakan pada sampel seri kedua diperoleh dari komposisi optimal membran kitosan-montmorillonite pada sampel seri pertama. Karakterisasi yang dilakukan meliputi uji tarik, pengukuran konduktivitas ionik dan identifikasi menggunakan difraksi sinar X. Penambahan montmorillonite meningkatkan kuat tarik membran dan konduktivitas ionik setelah ditambah LiClO4. Pada kondisi optimal diperoleh konduktivitas ionik 2,383 x 10-5 S/cm dan kuat tarik 15,19 Mpa pada komposisi montmorillonit 5% b/b dan LiClO4 40%. Hasil analisis difraksi sinar X menunjukkan terjadi proses interkalasi polimer kitosan ke dalam montmorillonite. 
EFFECT OF SINTERING TEMPERATURE ON TUNGSTEN CARBIDE DENSITIES AND POROSITY Ade, Ade Saputra; Hidayat, Imam; Prijono, Kusdi; Dimyati, Arbi; Salam, Rohmad; Rohmat, Nur; Suhendi, Suhendi
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 13, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v13i2.23016

Abstract

The manufacture of tungsten carbide begins with mixing WC with Co in the milling process and then the compaction process is carried out using a compacting machine. After that, the sintering process is carried out to increase the strength of the material. From various studies it was found that the sintering temperature had an effect on the density of the tungsten carbide produced. The problem is what is the best sintering temperature for WC (Tungsten carbide). This study was intended to analyze the effect of temperature on the density and porosity of tungsten carbide. The research was carried out with a compaction press load of 20 tons with 4 variations of sintering temperature and heating electric current strength, namely 50A -600°C, 60A -800°C, 70A -1000°C and 80A -1200°C. The results of this study prove that the WC sintering temperature has a significant effect on density and porosity. The highest average density of 9.4763 g/ml was achieved by specimens with a sintering temperature of 1.000°C and a current of 70A. Microstructural observations using SEM-EDX also proved that this specimen had the best density compared to other specimens.
Co-Authors Ade, Ade Saputra Arbi Dimyati Evi Yulianti Heri Jodi, Heri Kusdi Prijono Nur Rohmat Rosiana Dwi Saputri, Rosiana Dwi RR. Ella Evrita Hestiandari Suhendi Suhendi Zulham Zulham