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Wasir Nuri
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Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Pemanfaatan Lumpur Lapindo sebagai Bahan Baku Pembuatan Genteng Keramik dengan Variasi Suhu Pembakaran Wasir Nuri; Dyah Tri Retno
Eksergi Vol 12, No 1 (2015)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v12i1.664

Abstract

Lapindo mudflow issued a very large volume of mud. The mud flooded rice fields, residential and industrial area to date has not been stopped but the mud bursts untapped yet. Therefore, attempted use Lapindo mud very much it to be made tile. Sludge containing 55.4% silica oxide, alumina 16.1% and 8.9% iron with the composition of the possibility of mud can be created tile roof. Dried mud that has been mashed into the grain size of 80 mesh, then water added until plastic. Mud that has plastic printed with size 6 x 3 x 3 cm and then dried using ambient air. After the dried samples were burned using a furnace at temperatures varying from 500 to 900oC, after chilling the samples tested compressive strength, fracture modulus and water absorption. The results showed that the higher the combustion temperature obtained greater compressive strength and less water absorption. Most compressive strength is 142 kg/cm2and smallest water absorption is 0.06 g/cm2at a temperature of 900oC. At combustion temperatures of 500 to 700oC fracture modulus down from 72.78 to 41.81 kg/cm2 while at 700 to 900oC fracture modulus rose to 126.7 kg/cm2. The best results obtained on the combustion temperature at 800oC with fracture modulus 103.18 kg/cm2 and water absorption 0.08 g/cm2.   These results satisfy roof tile as type I according SII.0027 UDC-81. 666.74.
Modulus Patah dan Penyerapan Air pada Genteng Beton dari Tbas, Batu Apung dan Kapur Padam dengan Variasi Wasir Nuri
Eksergi Vol 9, No 1 (2008): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7556

Abstract

Di Indonesiaîerdapat sumber dryø alamyang cakup baryak antara lain tras, batu apung danbatu kapun bahan tersebut dapat digunakan sebagaí bahan bangunan, jika ketiga bahan tersebatdicampur dan dítambah air maka akan menjadi keras dan cuhrp htat dígunakon sebagai bahan bongunan.Penelitían ini bertujuan mencari modulrc patah dan penyerapan air yang memenuhí Standard InùtstriIndonesia pada genteng beton dari campuran tras, batu apung dan kapur padam dengan varíasikomposisi. Campuran tras dan kapur pødamr dengan perbandingan 10 : 4 ditambah batu apung dengankomposisi bemaríasi dari nol sompaí dengan 42,5 prosen berat, dengan ukuran diameter butir lolosayakan 100 mesh dan 200 mesh, campuran ditambah aír sambil diaduk sampaí adonan menjadi plastßhemudíandicetakdenganukuranT,Sx6,6x2cm,sEnplekemudíandiperamselama2l hari,setelahkzringselaniunya dilalwkan uji terhadap modulus pøtah dan penyerapan ain Hasíl uji terhadap modulus pøahmalrsimum adalah 10,2 kg / cm'1 pada ukuran butir 200 mesh sedangkan peresapan terhadap aìr minimumadalah0,l6 gramper cm'padaukuranbutir I00meshdalamwaktu2t hari. Moduluspatah-danperesapanaír masih dibautah standart SII sebagai genteng beton, sehingga perlu penelitian lebih lanjut misalnyawaklu pemeraman atau ditambahkan semen Portland.
Polymerization Styrene dengan Solven Toluena Sri Wahyu Murni; Wasir Nuri; Indriana Lestari; Ani Saraswati
Eksergi Vol 9, No 1 (2009): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7579

Abstract

Polystyrene is the result of free radical-addition polymerization of styrene monomer with the initiator benzoyl peroxide. This research aims to study the effect of variable temperature and ratio of toluene-styrene (T / S) against the conversion and reaction kinetics of polymerization of styrene with toluene solvent and initiator benzoyl peroxide. This research was conducted in two stages, ie preliminary experiments with test FTIR (Fourier Transform Infra-Red) to prove that the manufacture of polystyrene was successful. Manufacture of polystyrene begins with purifying styrene monomer, and then enter a toluene-styrene (5:1 volume ratio, 5:2, 5:3, 5:4) and 0.2 gram of benzoyl peroxide into a three-neck flask and heated to the desired temperature (60, 70, 80, 90 and 100)oC. Samples were taken every 15 minutes. Each sample is added 0.01 grams of hydroquinone in 10 ml of ethanol and shaken gently to precipitate the polystyrene, then wet samples were weighed, put in oven at 200oC for 1.5 hours. Dried sample was cooled in eksikator then weighed to determine the weight of polystyrene formed. From the experimental results at optimum condition of reaction time of 120 minutes, the temperature of 100oC and toluene-styrene ratio of 5:4, obtained by conversion of 58.75%. The global rate reaction according to equation k' = 5963 exp (-8901 / T).
Pemecahan Emulsi Simulasi dengan Variasi Salinitas Air Menggunakan Gelombang Mikro Wasir Nuri
Eksergi Vol 9, No 1 (2009): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7582

Abstract

Pemecahan Emulsi Simulasi dengan Variasi Salinitas Air Menggunakan Gelombang Mikro
Co-Authors Ani Saraswati Dyah Tri Retno Indriana Lestari Sri Wahyu Murni