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All Journal Reaktor Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Majalah Kulit, Karet, dan Plastik Ta'allum: Jurnal Pendidikan Islam JOURNAL OF EARTH ENERGY ENGINEERING Civic-Culture : Jurnal Ilmu Pendidikan PKN dan Sosial Budaya JKIE (Journal Knowledge Industrial Engineering) International Journal of Community Service Learning Jurnal Kesehatan Indonesia Jurnal Ilmiah Akuntansi Peradaban Unri Conference Series: Community Engagement Journal of Bioprocess Chemical and Environmental Engineering Science Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) JEELS (Journal of English Education and Linguistics Studies) Jurnal Sains dan Ilmu Terapan Gudang Jurnal Multidisiplin Ilmu Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal Education And Islamic Studies Jurnal Dedikasi Masyarakat IECON: International Economics and Business Conference Aktualisasi Pengabdian Masyarakat: Jurnal Pengabdian Kepada Masyarakat Proceeding International Conference on Education Jurnal Ilmu-ilmu Syari'ah Civic-Culture: Jurnal Ilmu Pendidikan PKn dan Sosial Budaya
Bahruddin
Universitas Riau
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Pengaruh Waktu Dan Suhu Reaksi Grafting Pada Proses Pembuatan Maleated Natural Rubber Ade Putra; Yelmida Yelmida; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Natural rubber can be modified through the grafting process. of maleic anhydride (MAH). Maleic anhydrade has been grafted into natural rubber to make a compound called Maleated Natural Rubber (MNR). The aiming in this research is learning of the reaction time effect and the temperature of natural rubber grafting process. Furthermore,kinetics reaction of the grafting process has to be learned. Independent variables are 8 phr of MAH and 60 rpm rotor speed of internal mixer. Dependent variables are reaction temperature and reaction time, which are variated by 150oC, 155oC, 160oC, and 165 of reaction temperature, and 6, 8, 10, 12, 14 minutes of reaction time. The degree of grafting was determined by titrimetric method, meanwhile kinetics reaction is learned by assumption of pseudo - first order to get the value of the constant rate of reaction (k). The results showed the optimum temperature is 160oC  and reaction time is 12 minutes. Best conditions of the kinetics reaction has been obtained at reaction temperature 155o and 165oC, which produced constant rate of reaction is 0.004 min - 1, activation energy is 6107 cal / mo , hereby  the Arrhenius equation : k = 4,65 e-6071/RT  Keywords: grafting degree, maleic anhydric, maleated natural rubber, temperature, Arrhenius equation.
Degradasi Karet Alam Menggunakan Katalis CoCl2 Dengan Variasi Waktu Reaksi Ivan Fadhillah; Said Zul Amraini; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Liquid Natural Rubber (LNR) is a product of natural rubber latex depolymerization process whose molecular weight specifications are influenced by several factors. Two of them are CoCl2 catalyst content and depolymerization reaction time. This study aims to synthesize Liquid Natural Rubber (LNR) from Latex Natural Rubber and determine the effect of variations in the addition of CoCl2 catalyst levels and reaction time to the molecular weight of the resulting LNR. The first treatment in this study had several stages, namely the preparation of raw materials including dilution of natural rubber latex resulting from cutting of rubber trees into natural rubber latex with dry rubber content (DRC) 20%. After that, the process of depolymerization was continued with the help of a CoCl2 catalyst which varied the levels of CoCl2 1 phr, reaction times 7, 8 and 9 hours, stirring speed of 250 rpm and stirring temperature of 70 ºC. The final stage of LNR purification was using methanol, toluene and oven at a temperature of 70ºC. The LNR products obtained are liquid and semi-gel. The formed LNR has functional groups and structures that conform to the LNR formation specifications. While the Mn LNR molecular weight value with a variation of ,reaction time, did not experience a significant difference for each additional reaction time.Keywords : liquid natural rubber, gel permeation chromatography, cobalt dichlorite, depolymerization and dried rubber crumb.
Aktivasi Green Coke Menjadi Karbon Aktif Menggunakan KOH Sebagai Aktivating Reagent Rahmawati Rahmawati; Irdoni HS; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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The activated carbon is one of adsorbent which often used in absorption process. This is because the activated carbon has better absorptive capacity of adsorption and surface areathan other adsorbent. One of the potentially material that can be used as a raw material to be activated carbon is green coke because it has 87- 97% carbon content and 250-3000 m2/grsurface area. This research aims to determine the effect of mass comparison of KOH to green coke, and activation time to the characterization of activated carbon. The manufacture ofactivated carbon was carried out with chemical activation method which used KOH as activating reagents. The process was done by mixing the green coke and KOH with a mass ratio variation (1/1; 2/1; 3/1 b/b) and activation time (18, 20, 22 hours). The activatedcarbon was analyzed with proximate analysis (moisture, ash, volatile), activated carbon absorption of the methylene blue, the surface area of BET (Brunauer Emmett Teller) and analysis by using Design Expert v10.0.1. The mass comparison of KOH to green coke and activation time indicated a significant effect to all of responses. On the best condition process (KOH mass comparison to green coke is 3.414:1 and activation time 20 hours) was obtained the best response value for mass yield 85.9%,; water content 7.37%; ash content 3.22%; volatile substance content 6.8%; the absorption of activated carbon to the methylene blue is 137.15 mg/g and surface area is 25,33 m2/gr. The analysis result of surface area determine that KOH mass comparison to green coke and activation time has significant effect to the surface area, it is indicated by the pores which increasingly open and the enhancement of surface area before activationKeyword : activated carbon, chemical treatment, green coke
Pembuatan Bioplastik Berbasis Komposit Pati Sagu-Carboxymethyl Cellulose (CMC) Dengan Plasticizer Sorbitol Firdaus Septiawan; Said Zul Amraini; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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Abstract

The use of sago starch in production of bioplastic is an efforts to utilized natural resources in Riau Province. Carboxymethyl cellulose (CMC) and sorbitol can be added when the process for making bioplastic sago starch-based was carried out, to improve the quality of bioplastic. The aims of this research were to produced biodegradable plastic composite blends based on sago starch-CMC using sorbitol as plasticizer, to assess the effect of CMC and sorbitol as additional materials on mechanical properties, water uptake, and biodegradability of bioplastic, and also to determine mathematical relationship between the research parameters and the characteristics of bioplastic statistically using response surface method (RSM). This research were started by mixing sago starch, CMC (35, 40 and 45%w/w starch) and sorbitol (20, 25, 30 and 35% w/w total solid). Bioplastic obtained by this process were characterized by mechanical properties analysis, water uptake test, and biodegradability test. Based on the empirical equation obtained, the addition of CMC would increase the tensile strength, water uptake and biodegradability of bioplastic, while the addition of sorbitol would increase the percentage elongation of bioplastic. At optimum process condition, CMC 42,27% and sorbitol 24,25%, the best result with tensile strength 6,776 MPa, percentage elongation 18,134%, water uptake 69,418% and percentage biodegradation 55,459%.Keywords: bioplastic, carboxymethyl cellulose, response surface method, sago starch, sorbitol
Modifikasi Bioplastik Berbasis Pati-Polivinil Alkohol (PVA) Dengan Cross-Linking Agent Asam Sitrat Dan Pemplastis Gliserol Herlili Peronika; Bahruddin Bahruddin; Irdoni Irdoni
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Bioplastic characteristics are influenced by various parameters, including levels of cross linking agents (such as citric acid) and plasticizers (such as glycerol). The research was to study the effect of citric acid and glycerol levels on mechanical properties, cross linking (characterized by ester groups), and biodegradation of bioplastics based starch-polyvinyl alcohol (PVA). Bioplastic manufacturing is done by mixing sago starch -PVA (1: 3), glycerol (10, 15, 20% w/w) and citric acid (2.5; 5; 7.5% w/w) at 90ºC for 45°C minutes, optimization of process conditions is determined by response surface methodology (RSM). The parameters tested include tensile strength test, elongation, and biodegradation. The most significant factor affecting all responses was the level of citric acid and glycerol. The optimum process conditions were obtained at 7.5% w / citric acid content and glycerol 19.63% w / w with a tensile strength response of 21 MPa, elongation 566.6%, and 55.63% biodegradation. Keywords: bioplastics, citrid acid, glycerol, polyvinyl alcohol, RSM, sago starch
Pengaruh Kadar Filler Abu Sawit (Ukuran Direduksi) Dan Temperatur Pencampuran Terhadap Morfologi Dan Sifat Komposit Polipropilen/karet Alam Melda Helena S; Bahruddin Bahruddin; Ahmad Fadli
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
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Morphology and properties of composites PP/NR is influenced by the condition of the rawmaterial mixing process between the phase and compatibility. The purpose of this study was toinvestigated the effect of blend content filler fly ash and mixing temperature on morphology andmechanical properties of polypropylene (PP)/NR composite. Filler size is reduced by MechanicalMilling process until the filler size ≤ 700 nm. Variation of blend kontent fly ash (reducted particlesize) 30, 40, 50 and 60 phr were studied in order to determine the optimum content of fly ash(reducted particle size). The rubber compound  has been made by two roll mill at ambienttemperature and 20 rpm rotor speed. Dynamic vulcanization was done on internal mixer at variousmixing temperature 170 oC, 175 oC, 180 oC , and 185 oC. Rotor speed on internal mixer at 60 rpm.The mechanical properties was done by Universal Testing Machine (UTM) and the morphologywas examined by Scanning Electron Microscopy (SEM). The optimum result was found at thecontent of fly ash (reducted particle size) 40 phr and the optimum temperature  was 175oC. The bestmechanical properties was given on tensile strength 4,3 MPa, elongation at break 28,1 % and modulus elastic 104,2 MPa.Keywords: ash oil, composites PP / NR, mechanical properties, natural rubber,  polypropylen.
Modifikasi Aspal Konvensional Penetrasi 60/70 Menggunakan Lateks Kebun Dengan Variasi Konsentrasi Dan Kadar Karet Kering Lateks Rani Yuliantari; Rozanna Sri Irianty; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Natural rubber is an natural polymer that is potentially used as n asphalt additive. This research aims to determine influence of dry rubber content and amount of field latex to asphalt modified properties. In this study, has been used are latex with 22% of dry rubber content (non centrifugated) and 56% of dry rubber content (centrifugated). The sample made by adding field latex in to asphalt at 160ºC with 20 minute of blending time. The concentrations of latex were 5.0%, 7.5%, 10.0%, 12.5% and 15.0% w/w in the mixture. The samples were tests included penetration, softening point, marshall stability, and penetration after loosing weight, with standard of Spesifikasi Umum Binamarga Divisi 6.2010. The result showed that dry rubber content and amount of latex affects the value of test parameters asphalt modified. The best result is obtained from adding 10% w/w non centrifugated latex with penetration, softening point, stability, and penetration after TFOT, respected are 56 dmm, 58ºC, 1554 kg and 55 dmm. The result of this study indicated that addition of non centrifugated latex can improve asphalt properties.Keywords: asphalt modified, asphalt properties, dry rubber content, field lateks, polymer
Degradasi Limbah Cair Organik Industri Pulp Dan Kertas Menggunakan Peroxymonosulfate Yang Diaktivasi Oleh Katalis Α-Mn2O3@Α-MnO2-500 Kristina Wijaya; Edi Saputra; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Water consumption is very high in industrial pulp and paper. In addition, water also ranked at third for the world wide used. Low COD ratio (0.3) and biodegradability around 0.5 in wasted is considered ideal. One of the alternative way which is Advanced Oxidation Process (AOP) able to degrade harmful organism who less active in the normal degradation process. Active radicals in AOP act produced as oxidizing agents to mineralize complex chemical substances in waste. One of the active radicals, which is sulfate radical (SO42-) has a high oxidation potential of 2.5 to 3.1 V. Several studies showed that radical sulfates can be produced by catalytic oxidation process, such as combination of Peroxymonosulfate with homogeneous metal ion catalyst (Fe2+, Mn2+, Ni2+, Co2+, Cd2+, Cu2+, Ag+1, Cr3+, Zn2+). In this study, AOP method Peroxymonosulfate which was activated with the catalyst α-Mn2O3@α-MnO2-500 were used to treat COD content in organic waste water from pulp and paper industry. The α-Mn2O3@α-MnO2-500 catalyst was produced from 1:3 molar potassium permanganate and maleic acid that calcined at 500 ºC. These catalysis were characterized by XRD, BET and FESEM. From the XRD analysis obtained a combined peak between α-MnO2 and α-Mn2O3 are comparable with JCPDS standard. From the FESEM analysis, the crystal size of the nanorod obtained is around 18-60 nm in width and 47-185 nm in length. In BET analysis, the surface area is 3.765 m2/g. The degradation of COD content, appear in 50ºC, at retention time of 240 minute, with concentrations of 0.4 g/L catalyst dose and 1.6 g/L Peroxymonosulfate (67,52%).Key word: AOP, COD, Peroxymonosulfate, Waste water, Catalyst
Perancangan Reaktor Etilen Oksida (R-101) Pada Pabrik Etilen Oksida Dari Etilen Dan Oksigen Dengan Proses Dow Meteor Dengan Kapasitas Produksi 200.000 Ton/Tahun Meysara Meysara; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Ethylene oxide (C2H4O), also known as oxirane, is an organic compound in the ether group. Ethylene oxide is a colorless, sweet-smelling gas, flammable at room temperature and is a highly reactive compound. The purpose of designing this ethylene oxide reactor is to determine the type of reactor used and the dimensions of the reactor with an ethylene oxide production capacity of 200,000 tons / year. The reactor design methodology was carried out using Aspen Plus V10 software. Where from this application the data obtained from the ethylene oxide reactor volume (R-101) is 34.75 m3. In designing this reactor, a fixed bed multitube type reactor is used which functions to react ethylene and oxygen to ethylene oxide using a silver catalyst. With a capacity of 200,000 tons / year, the height of the reactor designed is 8.74 m, diameter 3.84 m, and the number of tubes is 1539 tubes.Keywords : Aspen Plus V10, Ethylene Oxide, Fixed Bed Multitube, Reactor
Pengaruh Suhu Dan Waku Sintering Terhadap Pembuatan Foam Glass Menggunakan Limbah Pecahan Kaca Dan Abu Terbang (Fly Ash) Dari Pabrik Sawit Luci Octaria; Ahmad Fadli; Bahruddin Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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Foam glass is a material can be used as a insulation acoustic. The objective of this research is to investigate the effect of sintering temperature and time sintering on the physicalproperties of foam glass preparation from sheet glass and fly ash using dolomite as foaming agents. Slurry was made with mixed fly ash 50wt% and powder glass 50wt% incorporated indolomite 8wt% and strirred for 30 minutes; 300 rpm. Slurry was dried in oven at oven 105˚C for for 12 hours. Green bodies removed from mold and then it was sintered in the range 750, 900 and 950 oC at the furnace for 10,20,30 minutes. The effect of sintering temperature andsintering time on the shrinkage, porosity, density, compressive strength, microstructure and crystalline phases (XRD) were investigated. As the sintering temperature range 750oCthe density, compressive strength, shrinkage increased while the percentage of porosity decreased however as sintering temperature 900-950oC density and compressive strengthdecreased but percentage porosity increased. Furthermore, the sintering time increased the bulk density, compressive strength, shrinkage increased while the percentage of porositydecreased. The shrinkage, percentage of porosity, density, and compressive strength of the produced foam glass for insulation were 9,28-20,36%; 63-66%; 0,85-0,91 g/cm3; 1,53-1,69MPa; respectively. The optimum processing for producing foam glass for insulation was to use sintering temperature 900oC, time sintering 30 minutes.Keywords: foam glass; foaming agent; morphology; sintering
Co-Authors ABD Aziz, ABD Abd.Rahim Ade Putra Adhy Prayitno Adrianto Ahmad Adrianto Ahmad Ady Maulana Afkari, Fahmi Afrila Afrila Ahmad Fadli Ahmad Riadi S Hasibuan Ahmad Zain Sarnoto Aidil Akbar Akhmad Hasan Saleh, Akhmad Hasan Alfian Malik Alfian Mukti Fajar Alumni STIKES Husada Borneo Amir Hamzah Ananda Putri Andi Ibrahim Andreas Sahat Parsaulian Andri Mulia Angelina Angelina Anugerah Rifaldi Aras Mulyadi Aris Aprianto Cahyono Arya Wiranata Arya Wiranata Bramansyah Riswanda David Andrio DESI PURNAMA SARI Dewi Maya Sari Dian Anggraini Purba Dian Eka Indriani, Dian Eka Donny Kurniawan Edi Saputra Eka Mawarni Eko Sumadi Endro Siswoko Eri Malindo Fachry Abda El Rahman Fajar Ladung Farikhatul Akhlis Fahruddin Yulianto Fariq Fahrun Nisa Fatwa, Abdul Halil Firdaus Septiawan Fitra Annisa Fitriani Fitriyani Syukri Gunawan Gunawan Hamsar Hamsar Handayani, K.H Sri Hasan, Haslinda Herlili Peronika Herry Novriansyah Ida Zahrina Idral Amri Idral Amri Idral Idral Iradhatullah Rahim Irdoni HS Irdoni Irdoni Irdoni Irdoni Irwan Idrus Isra, Muhammad Ivan Fadhillah Izatun Nufus Jabosar Ronggur Hamonangan Panjaitan Jasman Khairat KRISTINA WIJAYA Liendra Juniarti Lita Darmayanti Luci Octaria M. Adely Ihsan M. Aldi Muhtadibillah M. Iwan Fermi Mansida, Amrullah Maradona Maradona Mardatillah Mariatul Qiftiah Melda Helena S Melly Anggraeni Mentari Nur Arafah Mery Christina Meysara Meysara MK, Pratiwi Muchlis Ade Putra Mudinillah, Adam Muh. Zulkifli Muhamad Ilham Syabana Muhammad Faiz Fadhlurrohman Muhammad Nasri Katman Muhammad Nur Muhammad Rigan Yusri Muhammad, Muhammad Mutiara Wulandari Nirwana Nirwana Nur Arfiyah Febriyani Nurul Aini Thaibil Fadhly Peji Nopeles Pusakaningwati, Ayik Puskesmas Guntung Payung Rahma Amariaman Rahmat Rani Yuliantari Razita Hariani Rina Gunarti Rizky Sandy Harahap Robby Kumar Robby Kumar Roy Marthin Panjaitan Rozanna Sri Irianty RS Khusus Bedah Siaga Banjarmasin Septiana Veronika S Siti Sakinah Sofi Nur Meilina Sofyan Sonny Wijaya Sri Helianty Sri Rezeki Muria STIKES Husada Borneo Sudirman Sudirman Suherman, Suherman Sunardjo Surya Baskara Jaya Syamsia Syaparuddin Syarfi Daud Syelvia Putri Utami Syukri, Fitriyani Thamrin Thamrin Ummy Aisyah Rochaeni Viodita Rizki Wahyu Suci Rahmani Wenny Susanty Winda Ramadhani Wira Bima Stevent Sembiring Yanny Sartika Yelmida Azis Yoga Deswan Suwary Yoga Pratama Yusnila Halawa Zainal Abidin Zuchra Helwani Zuchra Helwani Zuchra Helwani, Zuchra Zulkifli Zultiniar Zultiniar