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All Journal Jurnal Sains Materi Indonesia PELANGI PENDIDIKAN TABULARASA Jurnal Tematik JURNAL PENELITIAN SAINTIKA Mimbar Sekolah Dasar Jurnal Ikatan Alumni Fisika Universitas Negeri Medan Jurnal Pendidikan Fisika Science and Technology Indonesia Spektra: Jurnal Fisika dan Aplikasinya Pedagogik Journal of Islamic Elementary School Teknologi Indonesia Jurnal Darma Agung Jurnal Penelitian Pendidikan, Psikologi Dan Kesehatan (J-P3K) Journal of Management and Bussines (JOMB) Asimetris: Pendidikan Matematika dan Sains Jurnal Ilmiah Teunuleh: The International Journal of Social Sciences JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Makara Journal of Technology EINSTEIN (E-JOURNAL) IPER (Indonesian Physics Education Research)

Nurdin Bukit

Universitas Negeri Medan

Author-ID : 244716

Aerospace Engineering Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry 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 Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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KARAKTERISASI DAN ANALISIS BENTONIT ALAM SEBAGAI BAHAN PENGISI KOMPOSIT Ferry Rahmat A. Bukit; Erna Frida; Nurdin Bukit; Bunga Fisikanta Bukit
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 2 (2021): Vol 5 No. 2 Tahun 2021
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i2.631

This study aims to determine the effectiveness of bentonite in the calcination process, ball mill and coprecipitation process and synthesis with the surfactant Cetyl Trimethyl Ammonium Bromide (CTAB). Calcination process at a temperature of 700oC for 5 hours, the ball mill process for 10 hours with a rotation of 250 rpm. And the coprecipitation method was carried out with 5M HCl and NaOH precipitate,and continued to be synthesized with CTAB solution. from XRD analysis for bentonite with HCL5M activation obtained particle size of 8.89 nm with a trigonal crystal system, XRF analysis contained 57.1% SiO2 content, while for bentonite synthesized with CTAB obtained 10.57 nm SiO2 content of 51.1%, the results of morphological analysis showed homogeneous particle distribution. The FTIR spectrum for bentonite showed the presence of an absorption band at 3636.93cm-1 which could be attributed to Al-OH or Si-OH stretching.

ANALISIS MEKANIK DAN DIFRAKSI NANO KOMPOSIT TERMOPLASTIK HDPE Eva Marlina Ginting; Erna Frida; Martha Marchofinece Padang; Nurdin Bukit
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

The objective of this study was the manufacture of composite nano from ash particles of rice husk ash (RHA) which serves as a high density polyethylene (HDPE) thermoplastic filler. The composite nano-making process is carried out in an internal mixer of laboplastomill at a temperature of 150 Ã‚Â° C at a rate of 60 RPM for 10 min, blend HDPE with nano ASP in compositions (0.2,4,6,8 and 10) % of weight with a compatible 2% by weight and without a Polyethylene-grafted Maleic Anhydride (peg. MA). From the composite nanoscale results were analyzed the mechanical properties (tensile strength, elongation break and elastic modulus) and the diffraction pattern. The resultÃ‚ elongation and elasticity modulus analysis increase with increasing RHA nano composition a decrease of tensile strength and yield Strength of XRD analysis result of intercalation between HDPE thermoplastics and RHA nanoparticles. Keywords: RHA, HDPE,Ã‚ XRD, Mechanical properties.

Mechanical and Thermal Properties of Polypropylene Reinforced by Calcined and Uncalcined Zeolite Bukit, Nurdin
Makara Journal of Technology Vol. 16, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study was carried out to compare mechanical and thermal properties of polypropylene (PP) reinforced with uncalcined and calcined zeolites. The PP samples were reinforced with zeolites at various quantities of 2, 4, and 6 (wt %). The comparison of the two types of zeolite was based on mechanical properties, including tensile strength, elongation at break, and Young’s modulus, and thermal characteristics analyzed using DSC, and DTA/TGA technique. The results obtained clearly revealed that both zeolites were able to significantly increase tensile strength and Young’s modulus of the samples, with calcined zeolite was found to work better. Addition of calcined zeolite was found to result in increased fracture elongation of the samples reinforced with up to 4 wt% zeolite but decreased sharply for the sample reinforced with 6 wt% zeolite, while for the samples reinforced with uncalcined zeolite, no consistent trend was observed. Thermal analyses demonstrated that the samples reinforced with calcined zeolite are more resistant to thermal treatment than those reinforced with uncalcined zeolite, as indicated by their higher decomposition temperature. DSC analysis revealed that there was no significant difference of the melting points of the samples was observed, but the effect of the quantity of zeolite on enthalphy was quite evident, in which the enthalpies of the samples reinforced with calcined zeolites were relatively lower than those of the samples reinforced with uncalcined zeolites.

The Effect Zeolite Addition in Natural Rubber Polypropylene Composite on Mechanical, Structure, and Thermal Characteristics Bukit, Nurdin; Frida, Erna
Makara Journal of Technology Vol. 17, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study was conducted to determine the effect of zeolite as filler on mechanical properties, and thermal structure blends of natural rubber and polypropylene (NR/PP). In this study, NR/PP/PP-g-MA blends was filled uncalcined zeolite and calcined zeolite at different weight percent of the 2, 4, and 6%. Samples were characterized to determine the tensile strength, fracture elongation and Young's modulus. Structure of the samples was investigated using XRD method and thermal characteristics were analyzed using DTA/TGA technique. The results obtained for tensile strength showed a significant influence with the addition zeolite of the NR/PP blends at 2% by weight of the composition (8 MPa) and decreased with increasing zeolite composition uncalcined zeolite or calcined zeolite. At 2% to 6% by weight of an increase in Young's modulus, for which uncalcined zeolite function more effectively than the calcined zeolite. On the other hand, the addition of uncalcined zeolite and calcined zeolite did not result in decreased fracture elongation. The XRD analysis zeolite indicate the existence of amorphous phase and crystalline mineral type mordenite (CaAl2Si10O24.7 H2O). In general, cristality of samples filled with calcined zeolite slightly higher than the uncalcined zeolite at the same amount and intercalation occurs between the zeolite matrix NR/PP. Thermal analysis showed that the samples are filled with calcined zeolite has a thermal resistance higher than the uncalcined zeolite, the melting point NR/PP 165.0 °C with the addition of 6 wt% zeolite melting point to 186.7 °C.

PENGARUH PENGGUNAAN MEDIA PEMBELAJARAN GOOGLE SITES TERHADAP HASIL BELAJAR SISWA SMA PADA MATERI HUKUM NEWTON Prapti Ningsih; Nurdin Bukit
Jurnal Pendidikan Fisika Vol 11, No 2 (2022)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpf.v11i2.36669

Penggunaan media Google Sites merupakan salah satu media alternatif yang digunakan pada masa covid-19. Google sites dapat digunakan untuk masa pembelajaran daring ataupun luring. Dengan media ini memberikan kesempatan kepada siswa untuk mengulang pembelajaran dirumah. Penelitian bertujuan untuk menganalisis pengaruh penggunaan media pembelajaran Google Sites terhadap hasil belajar siswa SMA. Jenis penelitian yang dilakukan adalah kuasi eksperiment dengan Desain pre eksperimental Design atau penelitian semu dengan menggunakan satu kelas eksperiment tanpa kelas kontrol. Jenis penelitian kuantitatif dalam bentuk pilihan berganda dengan jumlah 10 butir soal.Hasil penelitian menunjukkan bahwa terdapat pengaruh Penggunaan Google Sites Terhadap Hasil Belajar Siswa Pada Materi Hukum Newton Kelas X MAS PAB 1 Sampali dengan rata-rata nilai pre-test diperoleh 48,33. Sedangkan untuk nilai postest diperoleh rata-rata 82,67. Pembelajaran dengan menggunakan media Google Sites memberikan keuntungan baik pada sampel penelitian karena dapat diakses dengan menggunakan website tanpa harus mendownload aplikasi sehingga dapat menghemat kuota yang ada.

THE EFFECTIVENESS OF LKPD IPA BASED ON SCIENCE PROCESS SKILLS TO IMPROVE STUDENTS' CRITICAL THINKING SKILLS ON SINGLE SUBSTANCE AND MIXED SUBSTANCES MATERIAL Nora Deselia Saragih; Nurdin Bukit; Sriadhi Sriadhi
Jurnal Ilmiah Teunuleh Vol. 3 No. 1: Jurnal Ilmiah Teunuleh | March 2022
Publisher : Teunuleh Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51612/teunuleh.v3i1.99

The purpose of this study is to determine the feasibility and effectiveness of developing worksheets for science students based on contextual teaching and learning (CTL) to improve critical thinking skills. This research is based on development research, with a sample of grade V students of Binjai Methodist Private Elementary School. Data analysis techniques use descriptive studies and t-tests. The results of the research and conclusions in this study are: 1) For the feasibility test in this development research, namely the results of expert validation tests conducted on 3 experts, namely Indonesian experts, material experts and learning media experts. Obtained an expert score of Indonesian of 35 with a percentage of 72.92% (quite valid), then a score by a material expert obtained 55 with a percentage of 85.94% (Valid). Then the score by the learning media expert was 64 with a percentage of 69.75% (quite valid). The results of the field trial in this study obtained the number of scores from 28 students, the average score obtained was 49.07 with a percentage of 87.63% (Valid). For the effectiveness test, from the results of the calculation of the data obtained thitung = 8.34 from the distribution list t using the odds of 1-? = 0.95 with dk n-1 (27-1) = 26, obtained the price of ttabel = 4.25. So that a calculation of > ttable was obtained, with the hypothesis stated "There is an effectiveness of a Contextual Teaching and Learning (CTL) Based Science Student Worksheet on the material "single substance and mixed substance" in Class V of Binjai Methodist Private Elementary School"

Preparasi Nanopartikel Fe3O4 (magnetit) dari Pasir Besi Sebagai Bahan Pengisi Termoplastik HDPE (High Density Poliethylene) Hepi Armen Gea; Nurdin Bukit
EINSTEIN (e-Journal) Vol 4, No 1 (2016): EINSTEIN
Publisher : Universitas Negeri Medan

Tujuan dalam penelitian ini membuat nanokomposit campuran HDPE dengan kompatibilizer PE-g-MA (2%) berat dan tanpa PE-g-MA dengan bahan pengisi Nanopartikel Fe3O4 (magnetit) yang telah berhasil dipreparasi dengan komposisi (2, 4, 6, 8) % berat. Metode pembuatan nanokomposit menggunakan internal mixer Laboplastomil dengan laju 60 rpm selama 10 menit pada suhu 150o C dengan masing-masing variasi % berat bahan pengisi. Kemudian dilakukan penekan panas (hot press) dan penekan dingin (cold press) untuk pemotongan dengan dumbbell pemotong standar JIS K 6781 dan kemudian dilakukan uji tarik. Dari hasil analisis diperoleh sifat mekanik dengan nilai terbaik untuk kekuatan tarik yaitu tanpa menggunakan PE-g-MA, sedangkan untuk perpanjangan putus diperoleh nilai terbaik pada komposisi nanokomposit dengan menggunakan PE-g-MA dan Modulus Young’s dengan nilai terbaik tanpa menggunakan PE-g-MA.Kata kunci : Nanopartikel Fe3O4, termoplastik HDPE, sifat mekanik

SIFAT MEKANIK KOMPON KARET ALAM DENGAN FILLER NANOPARTIKEL TEMPURUNG KELAPA Fitriani Fitriani; Nurdin Bukit
EINSTEIN (e-Journal) Vol 10, No 3 (2022): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Telah dilakukan penelitian pencampuran nano partikel Tempurung Kelapa (TK) yang digunakan sebagai bahan pengisi pada kompon karet dengan tujuan mengetahui sifat mekanik dari kompon dengan berbagai variasi nano partikel TK. Sifat mekanika yang meliputi kekerasan, kekuatan tarik dan perpanjangan putus. Metode yang digunakan dalam pembuatan nanopartikel TK adalah metode kopresipitasi. Metode pembuatan kompon karet menggunakan mesin open mill dengan variasi komposisi bahan nano partikel TK yaitu (0, 2, 4, 6, dan 8 ) phr. Dengan mencampurkan bahan activator dan bahan kimia lain yang sesuai standard. Hasil uji Sifat mekanik karet diperoleh nilai kekuatan tarik terbaik terdapat pada sampel ke 4 dengan komposisi bahan pengisi 6 phr yaitu sebesar 2,6 Mpa, dengan perpanjangan putus terbaik pada sampel ke 4 dengan komposisi bahan pengisi 6 phr yaitu sebesar 100 %, dan uji kekerasan terbaik diperoleh 51 Shore A dengan variasi bahan pengisi 6 phr. Dari hasil analisis sifat mekanik yang diperoleh, maka penelitian ini dapat diaplikasikan untuk proses pembuatan sarung tangan (SNI 16-2622-2002, SNI 16-2623-2002) dan Persyaratan mutu kompon karet SNI 06-14901989; SNI 06-35682006 dan SNI 06-7031-2004).

PEMBUATAN NANO PARTIKEL TIO2 MENGGUNAKAN SURFAKTAN CTAB DAN PEG 6000 Yohanna Lestari; Nurdin Bukit
EINSTEIN (e-Journal) Vol 10, No 3 (2022): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Penelitian ini bertujuan untuk mendapatkan nanopartikel TiO2 serta penambahan surfaktan Cetyl Trimethyl Ammonium Bromide (CTAB) dan Polietilen Glikol (PEG) -6000 . Dalam penelitian ini proses pembuatan TiO2 , TiO2 –CTAB , dan TiO2 -PEG-6000 serta TiO2-CTAB -PEG-6000 menjadi nanopartikel menggunakan metode sol gel, dari bahan TiCl3. TiO2 yang diperoleh dikarakterisasi menggunakan XRD dan SEM Dari hasil analisis XRD diperoleh ukuran diameter kristal masing masing sebesar 30,12 nm ,35,66 nm ,36,12 nm dan 21,57 nm dengan fase rutile dan kandungan senyawa yang dominan dari hasil sintesis adalah TiO2. Sedangkan hasil SEM menunjukkan bahwa morfologi nanopartikel TiO2 distribusi yang homogen.

ANALISIS SIFAT MEKANIK KOMPON KARET Elfariska Sidebang; Nurdin Bukit
EINSTEIN (e-Journal) Vol 6, No 2 (2018): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Penelitian ini bertujuan untuk mengetahui nilai sifat mekanik kompon karet. Pengujian karakteristik kompon karet yaitu kekerasan, kekuatan tarik, dan perpanjangan putus, dengan menggunakan variasi bahan pengisi Nanopartikel abu boiler kelapa sawit (0%,2%,4%,6%,8%) berat. Alat pengujian yang digunakan dalam penelitian ini yaitu Durometer untuk pengujian kekerasan dan Tensiometer untuk pengujian Kekuatan tarik dan perpanjangan putus. Metode yang digunakan dalam pembuatan nanopartikel abu boiler kelapa sawit yaitu dengan menggunakan metode kopresipatasi dengan ukuran 56,31 nm. Dari hasila nalisis diperoleh sifat mekanis pada kekerasan, kekuatan tarik dan perpanjangan putus mengalami peningkatan dengan bertambahnya variasi bahan pengisi abu boiler kelapa sawit.Kata Kunci : Kompon Karet, Abu Boiler Kelapa Sawit.

Co-Authors Abd. Hakim Anggili Pratama Apriana Apriana Asrul Karim Asrul Karim Br Ginting, Anayosi Bunga Fisikanta Bukit S.Si, M.Si Dalimunthe, Jumlia Syaulani Rizki Derlina . Derlina Derlina Dongoran, Jhonas Edi Surya Edi Surya, Edi Edy Surya Edy Surya Elfariska Sidebang Erna Frida Eva Faridah EVA FARIDAH Eva Marlina Ginting Eva Marlina Ginting Eva Marlina Ginting Eveb Adonai Hutagalung Fasti Rola Ferry Rahmat A. Bukit Fitri Mawaddah Lubis, Fitri Mawaddah Fitriani Fitriani Gea, Hepi Arman Gea, Hepi Armen Harahap, Linda Rahmadhani Harahap, Mukti Hamzah Hepi Arman Gea Hepi Armen Gea Hutagalung, Eveb Adonai Idawati Idawati Idawati Idawati Karya Sinulingga Makmur Sirait Mara Bangun Harahap Mara Bangun Harahap Mariati P S, Mariati P Martha M. Padang Martha Marchofinece Padang Marzuki Marzuki Motlan . Muhammad Affan Siregar Mukti Hamjah Harahap, Mukti Hamjah Mukti Hamzah Harahap Muliati, Sri Nainggolan, Raivita Jesica Nora Deselia Saragih Norma Septiani Novita . Prapti Ningsih Rini Lestari Rita Juliani Rizki Maulida, Rizki Sahyar . Saniman Saniman, Saniman Sarah Fazilla Septiani, Norma Sidebang, Elfariska Simanjutak, Mariati Purnama Sinaga, Sufri Siregar, Muhammad Affan Siregar, Shinta Marito Siti Habsari Pratiwi, Siti Solikin Solikin Sriadhi Sriadhi Susilawati, Sri Mila Syahrul Humaidi, Syahrul Tota Tota Martaida Usler Simarmata Yenni Dwi Aprilita Sagala Yohanna Lestari Zaskya Laksmita Utami

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