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All Journal Jurnal Teknik Kimia USU Ethos Riau Journal of Empowerment Journal of Saintech Transfer Jurnal Teknik Kimia USU

Fachry Wirathama, Syahrinal Anggi Daulay Halimatuddahliana

Universitas Sumatera Utara

Author-ID : 273261

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

Published : 24 Documents Claim Missing Document

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IbM of Small Medium Enterprise of Coconut Milk and Liquid Smoke from Coconut Shells Yusraini, Era; Halimatuddahliana; Gea, Saharman
Journal of Saintech Transfer Vol 1 No 1 (2018): Journal of Saintech Transfer
Publisher : Talenta Publisher

Community service activities funded by BPPTN 2017 has been implemented with one of the partners, who was a small entrepreneur of coconut milk and liquid smoke from coconut shells, held from August to November 2017. Partnership of community service was Mr. Budi Darmanto, who has has his business for 9 years in Medan. The problems facing by the partner were: marketing of the coconut milk was still through the agent, resulting in the low selling price because the cost must be cut off for agent commission. In addition, liquid smoke product from coconut shells still contained impurity (Tar), classified as grade 3, causing the demand and its selling price became low. Solutions to the problems were 1) opening or enlarging the new commercial market for coconut milk, by assisting them in the handling of halal permits to the MUI of North Sumatra Province and made marketing advertisements through the website; 2) Providing a grant of liquid smoke distillation apparatus, making standard operational procedures (SOPs) to reduce impurities as well as increasing the grade of liquid smoke, to increase the selling price, and also analyzing the quality of distillated liquid smoke. The opening of commercial market of coconut milk and increasing grade of liquid smoke is expected to increase the partner?s income and expand his own business.

DAYA SERAP AIR DAN KANDUNGAN SERAT (FIBER CONTENT) KOMPOSIT POLIESTER TIDAK JENUH (UNSATURATED POLYESTER) BERPENGISI SERAT TANDAN KOSONG SAWIT DAN SELULOSA Michael, Elmer Surya, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 2, No 3 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v2i3.4120

This study was aimed to investigate the effect of empty fruit bunch palm oil and cellulose content as filler in water absorption and fibre volume fraction of the unsaturated polyester composites. The composites were made by hand-lay up method by mixing unsaturated polyester with the composition of each fillers (empty fruit bunch palm oil and cellulose) of 5,10,15,20 wt%. The parameter which was carried on the prepared samples was water absorption for each sample every 24 hours until the composites have constant absorption. It was found that the addition of fillers to the matrix caused the water absorption of composites increased at each of composition of fillers (empty fruit bunch palm oil and cellulose) and the fibre volume fraction increased as the filler content increase.

PENGARUH UKURAN SERBUK TEMPURUNG KELAPA SEBAGAI PENGISI KOMPOSIT POLIESTER TAK JENUH TERHADAP SIFAT MEKANIK DAN PENYERAPAN AIR Falma Irawati Sijabat, Jenmorisdo Saragih, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 2, No 4 (2013)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v2i4.5446

Coconut Shell Powder (CSP) was derived from industrial Making Anti-Mosquito can potentially be used as filler in materials composite. The investigation on the utilization of CSP as filler in a polyester matrix has been done with the purpose to obtain the best CSP fillers size in Unsaturated Polyester (UPR) composites in producing the best mechanical properties such as tensile strength, impact strength and water absorption. In this study, UPR was mixed with CSP at the sizes 50 mesh, 70 mesh and 100 mesh with comparison of CSP: Unsaturated Polyester 20:80 (w/w) by using hand lay-up method. The result of mechanical properties showed that, at a ratio of CSP: PE (20:80), the maximum tensile strength obtained is 42.558 MPa with the size of CSP 70 mesh. The test on impact strength was found that the increasing only occured with the size of CSP 100 mesh at 6083.47 J/m2. For absorption test, the highest water absorption occured at the first day, water absorption increased with increasing the amount of filler and the most CSP absorbed water at 70 mesh.

PENGARUH UKURAN PARTIKEL DAN KOMPOSISI TERHADAP SIFAT KEKUATAN BENTUR KOMPOSIT EPOKSI BERPENGISI SERAT DAUN NANAS Syahrinal Anggi Daulay, Fachry Wirathama, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 3, No 3 (2014)
Publisher : Universitas Sumatera Utara

This research was aimed to investigate the effect of pineapple leafs particle size and pineapple leaf fiber composition of the impact strength of epoxy composites filled with pineapple leaf fibers. The composites were made by hand lay up method by mixing epoxy and pineapple leaf fiber with particle size variation of 30 mesh, 40 mesh, 70 mesh, 100 mesh, and volume fraction ratio between filler and matrix 5/95, 10/90, 15/85 (v/v). Mechanical properties wich tested was impact strength and supported with SEM analysis. The results obtained show that the addition pineapple leaf fiber as filler in epoxy composites generally increase the impact strength of the composites, with best performance shown by 100 mesh particle size variation with ratio 90/10 (v/v) which from SEM analysis show that this variation having better filler distribution.

PENGUJIAN KEKUATAN TARIK DAN KEKUATAN LENTUR KOMPOSIT HIBRID PLASTIK BEKAS KEMASAN GELAS JENIS POLIPROPILENA/ SERBUK KAYU KELAPA TERMODIFIKASI/SERBUK SERAT KACA TIPE E Silvia, Castiqliana, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 4, No 3 (2015)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v4i3.10758

This study was aimed to investigate the effect of modified coconut wood flour and maleic anhydride-g-polypropylene addition in tensile strength and flexural strength of hybrid composite. Modification of coconut wood flour was also done to reduce the polarity. The hybrid composites were prepared by mixing method into an extruder. Glass Fiber Flour and maleic anhydride-g-polypropylene composition were made constant at 10 wt.% and 2 wt.% respectively and modified coconut wood flour composition was varied from 10 - 40 wt.%. Tensile test and flexural test were done. The results showed that addition of 20 wt.% modified coconut wood flour had given maximum tensile strength of 24,1 MPa and addition of 30 wt.% modified coconut wood flour had given maximum flexural strength of 31,2 MPa also inclination of both tensile and flexural strength of hybrid composite using maleic anhydride-g-polypropylene.

PENGARUH PENAMBAHAN MALEAT ANHIDRIDA-GRAFTED-POLIPROPILENA TERHADAP SIFAT KEKUATAN BENTUR DAN PENYERAPAN AIR KOMPOSIT HIBRID PLASTIK BEKAS KEMASAN GELAS BERPENGISI SERBUK SERAT AMPAS TEBU DAN SERBUK SERAT KACA Castiqliana, Silvia, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 5, No 1 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jutek.v5i1.10815

A study on wasted polypropylene/modified bagasse fiber flour/E-type glass fiber flour with maleic anhydride-g-polypropylene addition hybrid composite was performed and its impact properties and water absorption ability was analyzed. Glass fiber flour and maleic anhydride-g-polypropylene compositions were made constant at 10 wt.% and 2 wt.% respectively, and modified bagasse fiber flour composition was varied from 10-40 wt.%. Surface modification on bagasse flour with 1% sodium hydroxide was also conducted. The composites were prepared in an extruder. The result showed that the maximum impact strength of 46,6 J/cm2 was obtained in addition of modified bagasse fiber flour of 30 wt.%. Impact strength result was also supported by Scanning Electron Microscopy analysis. Water absorption test showed that the increase of modified bagasse fiber flour content resulted to the increase of water absorbance and composites with maleic anhydride-g-polypropylene addition had lower ability to absorb water when compared to composite without maleic anhydride-g-polypropylene addition in the same fillers content.

PENGARUH KOMPOSISI DAN UKURAN SERBUK KULIT KERANG DARAH (ANADORA GRANOSA) TERHADAP KEKUATAN TARIK DAN KEKUATAN BENTUR DARI KOMPOSIT EPOKSI-PSSERBUK KULIT KERANG DARAH Addriyanus, Tommy, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 4, No 4 (2015)
Publisher : Universitas Sumatera Utara

This study was aimed to investigate the effect of filler content and particle size of cockle-shell powder in tensile strength and impact strength of epoxy-PS composite. Epoxy resin was used as matrix, polyaminoamide as hardener, cockle-shell powder as reinforcement, polystyrene as toughening agent and chloroform as solvent. Filler content was varied from 10-50% and the macro particle was varied from 50-260 mesh. The composite was prepared by using compression moulding, then tensile test and flexural test were done. The results showed that addition of cockle-shell powder improved both tensile strength and impact strength of the composite. Addition of 30% (wt) reinforcement with 200 mesh particle size had given maximum tensile strength of 5,50 MPa and maximum impact strength of 30044,3 J/m2.

PENGARUH BAHAN PENGISI SILIKA DAN SERBUK TANDAN KOSONG SAWIT (STKS) TERMODIFIKASI TERHADAP KEKUATAN BENTUR DAN DAYA SERAP AIR KOMPOSIT HIBRID POLIESTER TIDAK JENUH Halimatuddahliana, Johan Evander Sirait, Fermadi Sirait
Jurnal Teknik Kimia USU Vol 5, No 2 (2016)
Publisher : Universitas Sumatera Utara

This research aims to determine the effect of palm oil empty fruit bunches (POEFB) powder and silica into the matrix of unsaturated polyester resin (UPR) and the influence of chemical modification OPEFB with using acetic acid 50% (v / v). In this study, (UPR) was mixed with silica and OPEFB to weight ratio (UPR: Silica: OPEFB) 80: 20: 0, 80: 15: 5, 80: 10: 10, 80: 5: 15, 80: 0: 20 by hand lay-up method. Analysis was done by impact test, and analysis of scanning electron microscopy (SEM). Results showed that impact strength at a ratio of 80: 5: 15 was higher than those without modification viz. 3622.5 J / m2. In this case the chemical modification has lowered OPEFB polarity so that the interfacial tencion between the filler with a matrix became low resulting in good interfacial interaction and adhesion between matrix and fille. Impact strength values were supported by the results of SEM. From water adsorption test, composite with chemical modification showed low values as compared without modification indicating that modification has lowered the polarity of OPEFB.

PENGARUH SUHU PIROLISIS DAN JUMLAH KATALIS KARBON AKTIF TERHADAP YIELD DAN KUALITAS BAHAN BAKAR CAIR DARI LIMBAH PLASTIK JENIS POLIPROPILENA Rio Nazif, Erlangga Wicaksana, Halimatuddahliana
Jurnal Teknik Kimia USU Vol 5, No 3 (2016)
Publisher : Universitas Sumatera Utara

The energy usage in Indonesia generally increase by the population growth, the economic growth and technology. Today, national demands of plastic is quite large and it continues to grow by the population growth. Plastics consumption in Indonesia is about 10 kg per capita annualy. One of the methode to reuse the plastic waste is making it to the liquid fuel by pyrolisis process. It is possible to do because the plastic is consist of monomers which will form the polymer. The purpose of this study is to observe the effect of process variable (process temperature and active carbon catalyst) for yield and the quality of liquid fuel from polypropylene packaging glass plastic waste. Quality parameters that have been analyzed consist of density, specific gravity / API gravity, kinematic viscosity, heating value, Fourier Transform Infra-Red (FTIR) characteristic, Gas Chromatography - Mass Spektrofotometer (GC-MS) characteristic, the pyrolisis process was using semi batch stainless steel unstirred reactor. Pyrolysis process was used 500 gram of polypropylene (PP) packaging glass plastic waste. Then carbon active catalyst is added by ratio catalyst : propilene (w/w) were 1 :10; 1,5 : 10 ; 2 : 10 ; 2,5 : 10 ; dan 3 : 10. Temperature variables were 200 °C, 250 °C, 300 °C dan 350 °C and it’s maintained in 2 hours. The last step was condensation, then the quality parameter of liquid product was analysed. From GC-MS analysis, the liquid product of pyrolisis most contains diesel fraction hydrocarbon that is C8 till C21. The pyrolisis temperature which produce the hydrocarbon near the best quality diesel is at 300 °C with ratio active carbon : PP is 10:2, and the analysis to the liquid fuel product claims that the liquid fuel is near to the best quality diesel, which fullfills the standard from commercial diesel.

STUDI PENGOLAHAN AIR BUANGAN DOMESTIK MENGGUNAKAN DIGESTER ANAEROBIK SATU TAHAP DAN DUA TAHAP Tamaria Kesia Hutasoit, Halimatuddahliana, Amir Husin
Jurnal Teknik Kimia USU Vol 7, No 1 (2018)
Publisher : Universitas Sumatera Utara

This research provides an analyzed performance of one and two-stage anaerobic digestion processes. One-stage and two-stage analyzed, individual, from substrate degradation, microbiological, metabolite and biogas production. First, the research initiated by acclimatization in a neutral condition and acid condition. Both one (R1) and two-stage (R2) digesters filled up with domestic wastewater. Into the digesters, it added cow dung as inoculums. pH in R1 maintained at pH 7 for 40 days and pH 5.5 in two-stage anaerobic: first stage (R2-1) for two days. After that, the mixture added with inoculums and then adjusted at pH 7 for the second stage (R2-2) for 38 days. The results showed that the substrate removal efficiency of two-phase is higher one-phase. The highest metabolite production obtained at R2-1: the 2nd day.

Co-Authors Addriyanus Amir Husin Andri Rizki Castiqliana Elisa Julianti Ellsworth Elmer Surya Era Yusraini Ervan Syahputra Fachry Wirathama Falma Irawati Sijabat Fatimah Fatimah Fenny Wijaya Fira Ayu Hasmita Florence T.N. Silalahi Jenmorisdo Saragih Michael Muhammad Turmuzi Orion Syaputra Putri Herfayati Ridwansyah Ridwansyah Saharman Gea Setiaty Pandia Setiaty Pandia Setiaty Pandia Silvia Syahrinal Anggi Daulay Tamaria Kesia Hutasoit Terip Karo-Karo Tommy

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