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Bahruddin Bahruddin
Jurusan Teknik Kimia Fakultas Teknik Universitas Riau Kampus Bina Widya Simpang Baru Panam Pekanbaru 28312
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Pembuatan Material Wood Plastic Composite Berbasis Limbah Pelepah Sawit Menggunakan Maleated Natural Rubber (Mnr) Sebagai Kompatibilizer Akbar, Anif Aulia; Yelmida, Yelmida; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Natural rubber (NR) is one of the largest agricultural commodities in the world. But this potential is not balanced with satisfactory productivity. The purpose of this research was to study the effect of palm frond powder (SPS) / polyethylene (PE) ratio on physical properties, use Maleated Natural Rubber (MNR) as a compilizer and study the effect of MNR compatibility composition on the physical, mechanical properties of Wood Plastic Composite (WPC) palm fronds based. WPC samples were prepared by melted mixing method between palm fronds, polyethylene, MNR, and Minarex fibers at a temperature of 170oC and using the Internal Mixer. The size of the palm frond fiber used is 60-80 mesh. While the ratios of the weight ratio of SPS / PE are 60/40 and 70/30 and the addition of MNR is 0%, 1%, 3%, 5%, 7% and 9%. The test method includes mechanical properties which is tensile strength test while physical properties test includes density, water absorption, and thick development. The test results show that the best mechanical properties are produced at the SPS / PE (60/40) ratio, MNR (3%), with a tensile strength value of 23.164 MPa. While in physical properties, the best absorption is 0.477% in the ratio (60/40) with MNR (3%), the best thick development is 0.167% in the ratio (60/40) with MNR (3%) , and the highest density is 0.923% in the ratio (60/40) and MNR (5%). Keywords: Compatibilizer, maleated natural rubber, palm frond fiber, wood plastic composite
Pembuatan Bioplastik Berbasis Pati Sagu Menggunakan Modifikator Asam Sitrat Dengan Microcrystalline Cellulose (Mcc) Sebagai Filler Dan Sorbitol Sebagai Plasticizer Novriyani, Vivi; Utami, Syelvia Putri; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The use of synthetic plastic in daily life trigger environmental problems. Bioplastic or biodegradable plastic is one of alternative solution to change comercial plastic that can be dangerous to environment because it is difficult to be degraded. One of the potential materials to become the raw materials is sago because of its high starch component. The general purpose of this research is to determine the characteristics of sago-based bioplastic by modified the citric acid, microcrystalline cellulose filler, plasticizer sorbitol. The synthesis method is casting of starch, water, filler and plasticizer with composition of filler is (15-25 % b/b), composition of plasticizer (25–35 % b/b), and composition citric acid (3-9 % b/b). The analysis of bioplastic was tensile strength, elongation, biodegradation,. The most significant factor of all responses was composition of filler microcrystalline cellulose, followed by plastcizer sorbitol and citric acid. The best process condition was bioplastic with composition filler 20 %b/b, plasticizer 30 % b/b, and citric acid 0,95 % b/b with the value was tensile strenght 15.84 MPa, elongation 9,31% and biodegradation 51.65%. Keyword : bioplastic, casting, filler, plasticizer, water uptake
Pemanfaatan Green Coke Sebagai Bahan Bakar Padat Yulia, Indri; HS, Irdoni; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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The need for alternative energy sources keep increasing, green coke is a byproduct from refenery unit that has a high heating value, so it is potential to be used as an alternative fuel. The purpose of this experiment was to study the green coke briquetting process, studied the effect of the pressing pressure against the produced briquettes, and determine the effect of operating conditions on the heating value and the resulting compressive strength. Green coke used in this experiment was tested fors carbon content, then do briquetting by adding starch with the composition ratio of green coke to starch (95:5, 90:10, and 85:15 %weight) and the variation of pressure (120, 150, 180 Kg/cm2), with response of heating value and compressive strength, the response data obtained were processed using Respone Surface Methodology (RSM) using Design Expert application. The pressing pressure and the ratio of green coke has a significant effect on the heating value and compressive strength. Highest heating value obtained in the comparison of green coke composition: adhesive 95: 5 and the pressing pressure of 180 kg / cm2 with a calorific value of 37685.4 Kj / Kg, and a compressive strength of 4.72 kg / cm2Keywords : alternative energy, compressive strength, heating value, starch.
Pengaruh Konsentrasi HCL Dan Deterjen Terhadap Fluks Dan Resistance Removal Untuk Pencucian Kimia Membran Ultrafiltrasi Pada Pengolahan Limbah Cair Tahu Romfis, Dio; Syarfie, Syarfie; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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One of the challenges / constraints of the use of membrane technology in the filtration system is fouling. This research aims to determine the effect of the concentration of HCl and detergent removal in flux and resistance affect the performance of ultrafiltration membranes. This research uses the membrane system to cross flow with varying operating pressure of 0.2 bar, 0.4 bar and 0.6 bar, the variation in concentrations of HCl and detergent 1.5%, 2% and 2.5%. The screening process liquid waste out for 120 minutes and each time washing to obtain HCl approximately 60 minutes and detergents lasted 30 minutes. The highest level of effectiveness laundering obtained 67.63% use traditional detergents 2.5%, the highest washing efficiency is based on the value of flux recovery by 85.55% and 67.62% removal resistance value. The highest flux value after chemical leaching is 0.3896 ml / menit.cm2 at an operating pressure of 0.6 bar membrane and chemical concentration of detergent 2%.Key word : flux recovery, membrane ultrafiltration,resistance removal
Pengaruh Kadar Filler Mikrokristalin Selulosa Dan Plasticizer Gliserol Terhadap Sifat Dan Morfologi Bioplastik Berbasis Pati Sagu Hendri, Zwilla Oktoriana; HS, Irdoni; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Bioplastic is one of alternative solution to change comercial plastic that can be dangerous to environment. Bioplastic can make degradation become easier. One of potential raw materialis sago because it has a highest starch component. The general aims of this research are the study of impact Microcrystalline cellulose filler and plasticizer glycerol to mechanicalproperties and morphology of bioplastic. The synthesis method is casting of starch, water, filler and plasticizer with composisition of filler is (4-12 % b/b), composisition of plasticizer (10–22 % b/b), and composisition of water (100-150 ml). The analysis of bioplastic is tensile strenght, elongation, modulus young, hidrophobicity (water uptake), biodegradation, SEM (Scanning Electron Microscopy), and design expert v.10.0.1 trial version. The most react variable is the composition of filler, followed by plastcizer glycerol and water ratio. The best process condition is bioplastic with composisition filler 12 %b/b, plasticizer 10 % b/b, andwater compotition 100 ml with the value is tensile strenght 14,21 Mpa, elongation 36,91%, water uptake 36,91%, and biodegradation 34,43%. Micrograf analysis shows that fillerdistribution is not equally on sago starch matrices and stil has a clod.Keywords : bioplastic, casting, filler, plasticizer, water uptake
Pengaruh Kadar Filler ZnO, Plasticizer Gliserol Dan Nisbah Air Terhadap Sifat Dan Morfologi Bioplastik Berbasis Pati Sagu Syahputra, Annur Fauzi; Bahruddin, Bahruddin; HS, Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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The need of plastic as plastic bags, food or goods packaging progressively increasing. Bioplastics is one alternative to conventional plastics that are harmful to the environment.one of the ingredients that can be used as bioplastics is starch, but starch-based bioplastics are still lacking at the mechanical properties. The purpose of this study was to determine thecharacteristics of sago starch, determine the effect of water ratio, the composition of the ZnO filler and plasticizer glycerol on mechanical properties and morphology of bioplastics. Sagostarch was tested for the composition of amylose and amylopectin, while the bioplastics is tested for mechanical properties such as tensile strength (tensile strenght), elongation, wateruptake, biodegradation, and dispersion of the filler through SEM (Scanning Electron Microscopy) and analyzed using Response Surface Methodology (RSM) , Significance levelused in this study is 0.05 so that the most significant variables can be determined from pvalue value of <0.05 and a lack of fit> 0.05, which indicates that the model according to theresearch results. The factors that most significantly influence all responses are ZnO filler composition and followed by the plasticizer and water ratio. Best results are obtained on thecomposition of 15% filler, plasticizer 10% and the ratio of water 100 ml with a tensile strength of 15.484 MPa, elongation 2.691%, water uptake 28%, and 22.12% biodegradation.Key Words : bioplastics, filler ZnO, glycerol, starch, biodegradation
Depolimerisasi Lateks Karet Alam Secara Kimia Menjadi Liquid Natural Rubber (LNR) Menggunakan Katalis Cocl2 Dengan Variasi Kadar Nano2 Septian, Septian; Amraini, Said Zul; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Increase in derivative products from natural rubber latex with the depolymerization process to low molecular weight Liquid Natural Rubber (LNR). The use of CoCl2 and NaNO2 catalysts as degradation agents is believed to increase the efficiency of the depolymerization process. The purpose of this research is to synthesize LNR from natural rubber latex and determine the effect of NaNO2 levels and chemical depolymerization reaction time of natural rubber on the formation of molecular weight of Liquid Natural Rubber (LNR) products. The method used to produce LNR consists of several stages. The initial stage is the centrifugation of natural rubber latex which is the basic material in producing LNR. Then the main process is chemical depolymerization of natural rubber latex by the addition of degradation agents such as hydrogen peroxide, sodium nitrite and the cobalt diclloride (CoCl2) catalyst, which ends with the purification stage. The chemical depolymerization process uses a variation of the content of NaNO2 degrading agents which is 2, 3, 4 bsk (weight per hundred rubbers). The LNR results obtained will then be analyzed using FTIR and GPC analysis tools. The results of this study found that the content of NaNO2 is 4 bsk NaNO2 degradation levels of 126,448 g/mol. By using the chemical depolymerization process also undergoes the formation of functional groups such as carbonyl and hydroxyl groups. Keywords: depolymerization, dry rubber concentration, gel permeation chromatography, natural rubber latex, reaction time
Studi Polimerisasi Ester Dari Asam Lemak Sawit Distilat (ALSD) Menggunakan Inisiator Benzoil Peroksida 0,1 % Dwifirman, Widya; Zultiniar, Zultiniar; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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Polyesters are polymers which contain the ester functional group in their main chain. In this research, used raw materias were Palm Fatty Acid Distillate (PFAD) and methanol. PFAD as a byproduct of the processed of palm oil has great potential to be used as raw material for polyester products. The purpose of this research was study polymerization of ester from Palm Fatty Acid Distillate (PFAD) using initiator of benzoyl peroxide 0,1%. There are two steps in this research, esterification reaction in the presence of sulfuric acid and the polymerization reaction with the help of benzoyl peroxide as initiator. Fixed variable used is the reactant composition of 1:8, speed of stirred 150 Rpm, composition of H2SO4 1% (w/w) PFAD and composition of benzoyl peroxide 0,1% (w/w) of methyl ester, while changed variable is the polymerization reaction time 3, 4 and 5 hours and polymerization reaction temperatures of 120, 130 and 140° C. Results of research on the esterification stage is obtained methyl ester with density 0,779 g/ml, viscosity 0,03746 cp and GC-MS analysis showed that the purity of methyl esters is 88,9%. GC-MS analysis sample after polymerization reaction showed that purity of methyl ester is 3,47%.Keywords : esterification, methyl ester, pfad, polymerization
Pengaruh Maleated Natural Rubber Terhadap Morfologi Dan Sifat Thermoset Rubber Dengan Filler Abu Sawit - Carbon Black Nanda, Hara Novarisa; Bahruddin, Bahruddin; Fadli, Ahmad
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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Oil palm ash is a solid waste that is generated from the burning of oil palm shell. It was assumed, this material can be a filler to improve the properties of thermoset rubber because it contains elements of silica. It is expected processing the filler to nano size, the filler can blend with (TR) thermoset Rubber for the improvement. This study aims to improve the properties and morphology of natural rubber-based thermoset rubber by using oil palm ash as filler. Nanofiller-making process begins with the conversion of oil palm ash size into nanometer sizes using ballmill.  Variable levels of research was nanofiller (30 and 50 phr), the ratio of palm ash / carbon black (0/100, 30/70 and 50/50), concentrations of coupling agent MNR (maleated natural rubber) 1.3 and 5 phr. Rubber compound made by mixing natural rubber and nanofiller into rollmill with MNR coupling agent, additives ZnO, Stearic Acid, TMQ (Trimethylquinone), MBTS (Mercaptodibenzothiazyldisulfide) and sulfur for ± 50 minutes. After the rubber mastication, molding was done using hot press at temperature of 200oC and pressure of 50 kgf / cm 2 for 10 minutes. Once formed, the thermoset rubber was exposed to some testing which were mechanical properties, namely tensile strength, elongation at break, tension set using the ISO 527-2 standard type 5A with UTM (Universal Testing Machine), Hardness Test, abrasion test, water absorption test. And analysis of SEM (Scanning Electron Microscopy) to depict TR morphology. The results showed the best properties and morphology of TR obtained at 30 phr filler content, 30/70 rasio of palm ash / carbon black and 3 phr MNR content which was 23.214 MPa tensile strenght, 832.641% elongation at break, 1, 77% Tension Set, 58± 5 Shore A Hardness and 0.22 mm3/Kg Abrasion Resistance.  Keyword : Filler Hybrid, Maleated Natural Rubber, Thermoset Rubber, vulcanization
Pembuatan Grease Dari Minyak Biji Karet: Pengaruh Campuran LiOHNaOH Dan Rasio Base Oil:Thickening Agent Terhadap Karakteristik Grease Yolanda, Putri Gusti; Irdoni, Irdoni; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Greases were used to reduce friction between two opposite moving metal surface. The utilized base oil could be vegetable oil and mineral oil, however mineral oil is not environmental friendly. This research objectives was to produce grease from rubber seed oiland to study LiOH-NaOH mole ratio effect and base oil mass ratio effect toward produced grease characteristic. This research pretreatment consisting few steps: raw material preparation involve rubber seed oil extraction by expression, degumming, centrifugation andthen oil characteristic test including density, viscosity and GC-MS. The process continued by LiOH-NaOH metal soap making utilizing rubber seed oil with mole variations (90:10), (80:20) and (70:20), stirring time 30 minutes, stirring speed 650 rpm and stirringtemperature is 70 oC. The last step was blending among base oil, thickening agent and additive with rasio (75:20:5)%w/w, (77,5:17,5:5)%w/w, (80:15:5)%w/w, (82,5:12,5:5)%w/w,(85:10:5)%w/w, stirring time 240 minutes, stirring speed 650 rpm and stirring temperature 120 oC. Rubber seed oil characterization results were density of 0,819 gr/ml and fatty acid content which dominated by unsaturated fatty acid namely linoleic acid 34,11% and linolenic acid 30%. The optimum ratio obtained were LiOH:NaOH ratio of 90%:10% (A1) and base oil:thickening agent:additive of (75:20:5)%w/w with penetration 228 (25 oC), dropping point 125 oC and NLGI number 3.Keywords: dropping point, grease, metal soap, penetration, rubber seed oil.
Co-Authors - Martutik Abbas, Nur Asrah Abd. Rahim Abdullah Abdullah Ade Rahayu Putri Adrianto Ahmad Afrianti, Dwi Afrilianti, Azyarah Afrilla, Nurul Agusriani, Uci Ahmad Fadli Ajib, Andi Muhammad Akbar, Anif Aulia Ali, Moh Rizal Alia fitri Alirman, Pidiya Ambtenarie Jessica Sihombing, Ambtenarie Jessica Aminuyati Amraini, Said Jul Amun Amri Anisa, Sufitri Arfah, Rudy Artha, Ulfa Dwi Asrindah, Asrindah Damayanti, Elok Darmawan Darmawan Deliana, Putri Dwifirman, Widya Edi Kurniawan Ekawati, Lestari Fadli, A fatimah Fatimah Fatmawati Fatmawati Fatmawati, Fatmawati Fauzi, Subehan Febye Alfia Azzahra Firmansyah Firmansyah Fitriani Fitriani Hamnah, Hamnah Hapsa, Nur Hara Novarisa Nanda Harsani, Harsani hasdiana, hasdiana Hendri, Zwilla Oktoriana HS, Irdoni. Ida Zahrina Imam Agus Basuki Iradhatullah Rahim Irdoni HS Irdoni Irdoni Irfan Maulana, Irfan Irmayani Irmayani Irwiadi, Irfan Israwati Israwati, Israwati Jahrizal Khairat, Khairat Khofifah Indar Ladung, Fajar Lubis, Apriadi Mahenra, Yusri Mayasari Yamin, Mayasari Mica, Mica MS, Frasucia Aquaviva Muhammad Hatta Muhammad Reza Muhammad Rivai Munir Munir, Munir Musdalifah Musdalifah Nadimisia, Tiara Dwisca Nisa, Fariq Fahrun Nopi Andri Musfa, Nopi Andri Novriyani, Vivi Nufus, Izatun Nurazisah, Nurazisah Nurazizah Nurazizah, Nurazizah Oktaviani, Cindy R Firmansyah Rahmawati Semaun Rahmawati, Rahmawati Ramlayani, Ramlayani Renaldi Renaldi Rismawati Rismawati Romfis, Dio Rubia, Rubia Ruslang T Ruslang T Russita Martani S, Sukri Sampara, Nirwana Sanjaya, Andi Arjuna Sarina Sarina Sa’diyah, Maemunah Septian, Septian Septiana Veronika s, Septiana Veronika Shaleh, Idries Hamidi Sri Nur Qadri Sri Rezeki Muria ST. Nur Halisa Suhardi, Dayu Suhari Suhari Suherman, Suherman Sukardi Sukardi Sukmawati Sukmawati Sumadi, Eko SUSANTO, RENO Syamsiar Zamzam Syamsu Herman Syarfi Daud Syarfi, Syarfi Syarfie, Syarfie Syelvia Putri Utami Syukri, Fitriyani T, Ruslang Tahir, Heriati Umar Umar Untung Suwardoyo W, Ririen Wahdaniyah Wahdaniyah, Wahdaniyah Wardhani, Wardhani Wiranata, Arya Yelmida Azis Yolanda, Putri Gusti Yulia, Indri Yulianto, Farikhatul Akhlis Fahruddin Yunus, Aulia Zuchra Helwani, Zuchra Zuliarti, Indah Zultiniar, Zultiniar