Umi Fathanah
Jurusan Teknik Kimia, Fakultas Teknik Universitas Syiah Kuala, Banda Aceh, 23111

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Pembuatan Film Selulosa dari Nata de Pina Iskandar, Iskandar; Zaki, Muhammad; Mulyati, Sri; Fathanah, Umi; Sari, Indah; Juchairawati, Juchairawati
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 3 (2010): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Preparation of cellulose film from nata de pina, a product of pinapple fermentation, using acetobacter xylinum was done at room temperature for 15 days. The aim of the research is to investigate the effect of sugar concentration and pH on film quality. The fermentation run at sugar concentration of 0, 5, 7.5, 10 and 12.5% and at pH of 3, 5 and 7. Results show that the best nata de pina was obtained at sugar concentration of 10% and pH 5. At these conditions, maximum nata precipitates rendemen was 26,80%, with a moisture content of 80,55%, and the thickness of 3,30 cm. The product nata then can be used to produce cellulose film. The characteristic of the produced film were 8,20 Kgf/mm2 and 11,71% for maximum tensile strength and elongation, respectively.Keywords: acetobacter xylinum, film, nata de pina, selulosa
Kualitas Papan Komposit dari Sekam Padi dan Plastik HDPE Daur Ulang Menggunakan Maleic Anhydride (MAH) sebagai Compatibilizer Fathanah, Umi
Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 2 (2011): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

The utilization of rice husk as raw material on preparation of composite board could be used as alternative and cheap construction material. In this research, the  composite board was prepared by mixing fined rice husk, recycledhigh density polyethylene (HDPE) plastic. Maleic Anhydride (MAH) was added ascompatibilizer. The objective of this research is to develop an alternative and a cheap technologyon fabrication of composite board by utilizing rice husk waste as filler and plastic from the type of recycled HDPE plastic as matrix. In order to improve the compactness of rice husk and recycled HDPE plastic thus the addition of MAH as compatibilizer is carried out. The research aspect learned is the MAH addition variation as much of 4% and 8% from HDPE plastic weight, and the mixing ratios of filler and matrix which are 30:70; 40:60; 50:50; 60:40; 70:30. Casting process of the homogonized solution was  carried out at casting temperature of 145oC for 20 minutes. The research result obtained indicates that the value of composite board density has fulfilled standard of SNI 03-2105-1996. The maximum water adsorbtion is obtained on composition of filler and matrixof 60:40 where with the addition of MAH 4% and 8% they are 10,1% and 6.9%, respectively. The addition of MAH as much of4% and 8% has resulted composite board with tensile strength value that has fulfilled SNI standard. Whereas the addition of MAH as much of 8% could increase modulus of rapture value of composite board i. e. 82.5 – 85.2 kgf/cm2and they have fulfilled standard of SNI 03-2105-1996.Keywords: Composite board, Maleic Anhydride (MAH), Recycled HDPE plastic, Tensile Strength, modulus of rapture.
Pembuatan Papan Partikel (Particle Board) dari Tandan Kosong Sawit dengan Perekat Kulit Akasia dan Gambir Fathanah, Umi; Sofyana, Sofyana
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

The need of wood as one of raw materials in furniture industry keeps increasing. One of efforts to reduce wood consumption is to develop research by creating composite design from material that contains sellulose to be particle board. Particle board is one of material alternatives that can be wood substitute. The objective of this research is to investigate the effect of natural-adhesive-mixture composition (acacia bark and gambier) with oil-palm-empty bunch toward mechanical property of particle board. Characterization of particle board was carried out by undertaking mechanical property testing (tensile strength and compressive strength) under wet and dry conditions. Composition variations of adhesive and oil-palm-empty bunch were 30:70; 40:60; 50:50; 60:40; 70:30. Making process of particle board is carried out by mixing oil-palm-empty bunch and adhesive with addition of 2% para-formaldehyde and water as much of 10%. Furthermore, the mixture is compressed by using Hot Press at temperature of 150oC and pressure of 10 kg/cm2 for 15 minutes. The research result indicates that the higher the adhesive composition (either adhesives of acacia bark or gambier), particle board resulted is better. In dry condition,  values of the tensile strength of particle boards  that have acacia bark adhesive and gambier adhesive have range of 84.2 - 104 Kgf/cm2 and 83.4 - 81.5 kg/cm2, respectively. Whereas, values of compressive strength of particle boards that have adhesives of acacia bark and gambier are in the range of 6.8 - 10.5 kg/cm2  and 6.3 - 9.3 kg/cm2, respectively. The values of tensile strength and compressive strength are obtained on compositions  of adhesive: oil-palm-empty bunch ≥ 40:60, and they have fulfilled satandard of SNI 03-2105-1996. The values of tensile strength and compressive strength of particle board in wet condition, either adhesives of acacia bark or gambier, have not fulfilled standard of SNI 03-2105-1996.Keywords: empty-bunch-oil palm, acacia bark, gambier, particle board, tensile strength
Biopolymer From Starch And Chitosan As Bioplastic Material For Food Packaging Fathanah, Umi; Lubis, Mirna Rahman; Moulana, Ryan
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

This research aims to improve economic value of cassava peel waste as raw material of bioplastic making, whose existence is still very abundant and has not been benefitted optimally. Bioplastic making is conducted by mixing starch and chitosan with gliserol as plasticizer. Bioplastic making is carried out at gelatinization temperature of 80oC. Chitosan addition is carried out at variatios of 0; 10; 20; 30; and 40 (% w). Research result indicates that mechanical property i.e. optimum value of tensile strength is obtained at value of 38.25 MPa with chitosan addition as much of 30%. The highest elongation percentage is obtained as much of 41.25% with addition of 10% chitosan. Physical property of resulted bioplastic is obtained from the best swelling test at addition of 40% chitosan i.e. 0.38%, and bioplastic density obtained is ranged from 2 – 3.33 g/ml. Analysis of functional group by using FTIR exhibits the existence of ester and carbonyl groups that indicates that resulted bioplastic could be degraded. Whereas biodegradability test on environment exhibits that bioplastic could be completely degraded in soil for 24 days.
PENGARUH PENAMBAHAN MAPE PADA PROSES PEMBUATAN KOMPOSIT BERBASIS SEKAM PADI DAN BENTONIT ALAM (The Effect of MAPE Addition on Formation Process of Rice Husk and Natural Bentonite Based Composite) Mulana, Farid; Fathanah, Umi; Syarifuddin, Syarifuddin
Jurnal Hasil Penelitian Industri Vol 27, No 1 (2014)
Publisher : Baristand Industri Banda Aceh

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Abstract

Rice husk and natural bentonite as well as virgin HDPE were used as rawmaterials to form composite. The aim of study is to know the effect of rice husk and naturalbentonite ratio as filler and the percentage of polyethylene-graft-maleic anhydride(MAPE) as coupling agent on quality of formed composites. The composite formationprocess was done by application of hot press method at 170 oC for 30 minutes. Afterheated and pressed then composites was cooled to room temperature and finallycomposites were tested its mechanical properties of tensile strength and bending strength.The results showed that addition of natural bentonite into matrix of rice husk can increasemechanical properties of composite compared to composites prepared by using only ricehusk and virgin HDPE. The amount of added MAPE affect values of tensile and bendingstrength of composites. The addition of MAPE and natural bentonite on formation ofcomposites caused the increasing adhesion bond between matrix and filler and as a resultalso increased the mechanical properties of composites. On ratio ofrice husk and naturalbentonite of 70:30 with addition of 5 wt% MAPE was obtained the highest tensile strengthvalue of 18.2 MPa and the highest bending strength value of 9.2 MPa.
Biodegradable Plastic from Cassava Waste using Sorbitol as Plasticizer Rinaldi, Wahyu; Lubis, Mirna Rahman; Fathanah, Umi
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

Cassava waste can be utilized as raw material for biodegradable plastics. This research studied the influence of sorbitol, carboxymethyl cellulose (CMC) and the gelatinization temperature in the preparation of biodegradable plastic from cassava waste. 12 gram of starch from cassava waste was stired with 68.2 gram of water-ethanol solution at 75 rpm and is fixed during this study. While the amount of sorbitol, CMC and gelatinization temperature are varied. The best results are showed at 44.90% in water absorption, 101.4 MPa in tensile strength, 76.57% in elongation, 4.17 MPa in Youngs modulus, and decomposition time are 64, 67, and 79 days.
Fabrikasi Membran PES Ultrafiltrasi Dan Kinerjanya Pada Penyisihan Fosfolipid Minyak CPO Razi, Fachrul; Fathanah, Umi; Erfiza, Novia Mehra
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

Penyisihan kandungan fosfolipid dalam minyak mentah kelapa sawit (CPO) telah dilakukan menggunakan membran ultrafiltrasi polietersulfon (PES). Membran PES dibuat secara inversi fasa dengan variasi konsentrasi polimer PES yaitu 15% dan 18% (%-b) dan pelarut dimetil sulfoksida (DMSO). Membran yang dihasilkan disebut membran PES-15 dan PES-18. Selanjutnya Membran PES dilakukan uji karakterisasi yaitu observasi struktur morfologi membrane menggunakan scanning electron microscopy (SEM) dan analisa komposisi kimia menggunakan FT-IR. Unjuk kerja membran PES pada penyisihan fosfolipid dalam minyak CPO dilakukan secara ultrafiltrasi menggunakan modul dead-end.  Rasio komposisi CPO dan heksana dalam larutan umpan yaitu 40%:60% dan 60%:40% (b/b).  Hasil SEM membran memperlihatkan bahwa membran PES-15 dan PES-18 memiliki struktur asimetrik dengan lapisan atas berupa lapisan tipis dan rapat (dense) sedangkan lapisan penyangga (support) berupa lapisan berongga (porous dengan struktur pori berbentuk jari. Hasil analisis komposisi kimia baik pada membran PES-15 dan PES-18 menunjukkan adanya gugus C=O dan 0=S=O pada kedua jenis membran yang mengindekasikan struktur molekul PES. Kinerja penyisihan fosfolipid tertinggi diberikan oleh membran PES-15 untuk umpan larutan CPO dengan komposisi 60% CPO:40% heksana (b/b) dimana persen penyisihan fosfolipid mencapai 97% Kata kunci:  penyisihan fosfolipid, minyak cpo, ultrafiltrasi, membran PES, stuktur assimetrik