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All Journal Jurnal Sains dan Teknologi Reaksi Jurnal Vokasi Proceedings of International Conference on Multidiciplinary Research Jurnal Teknologi JURNAL REKAYASA KIMIA & LINGKUNGAN
Teuku Rihayat
Jurusan Teknik Kimia Politeknik Negeri Lhokseumawe
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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The Effect of Filler Content on Mechanical Properties of Polypropylene/Clay Nanocomposites Rihayat, Teuku; Alam, Pocut Nurul
Jurnal Rekayasa Kimia & Lingkungan Vol 7, No 1 (2009): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

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Abstract

This study investigated the effect of filler content on mechanical properties of polypropylene. There are synthesis clay and un-synthesis clay used as filler content. Different ratio of clay in polypropylene to study which ratio has a better mechanical property. The tensile test was carried out using INSTRON5565 and the maximum stress, strain, and modulus of elasticity observed. The experimental results showed that polypropylene/clay nanocomposite has a higher maximum stress compare to pure polypropylene and un-synthesis clay. Besides that modulus of elasticity of specimen calculated and finds that it increased with increment filler content and strain did not affect by filler. The synthesis clay filled into polypropylene will have a better mechanical property. Keywords: nanocomposite, polypropylene, synthesis clay
PERANAN SERBUK BENTONIT TERHADAP SIFAT MEKANIS DARI KOMPOSIT RESIN POLIESTER BQTN 157-EX Rihayat, Teuku
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6350

Abstract

ABSTRAK Komposit merupakan campuran bahan-bahan yang berbeda atau telah menghasilkan sifat dan karakterisasi yang lebih banyak, tidak dihasilkan pada bahan utama. Resin poliester BQTN 157-EX merupakan bagian dominan (mayor) pada komposit yang berfungsi sebagai matriks dan bentonit merupakan bagian tidak dominan (minor) pada komposit yang berfungsi sebagai filler. Telah dilakukan penelitian pertama terhadap olahan bentonit yang bersumber dari bahan anorganik dan sifat hidrofilik. Pemeriksaan ini dilakukan dengan menggunakan alat kekuatan tarik. Hasil penelitian menunjukkan, pada nanokomposit 3,5%, massa bentonit dan ukuran partikel 300 mesh menghasilkan kuat tarik sebesar 197,57 Mpa, elongasi sebesar 24% dan Impact 0,80 Joule. Hal ini lebih baik jika dibandingkan dengan resin virgin polyester yang menghasilkan kekuatan tarik 104,92 Mpa, elongasi 13,32% dan Impact 0,21 Joule.Kata Kunci : Poliester BQTN 157-EX, Komposit, Sifat Mekanik
GLUTEN PRODUCTION : ANALYSED IN TERMS OF VOLUME EXPANSION, EXTENSIBILITY AND RHEOLOGICAL CHARACTERISATION Rihayat, Teuku; Helvina, Puteri
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6347

Abstract

ABSTRACT Gluten is the protein in flour that gives the viscoelastic properties of dough. There are still inadequate understandings of the knowledge concerning gluten during the dough mixing and the unique properties that gluten posses. Gluten production was examined in terms of quantity and quality of gluten. Quantity of gluten was measured in terms of wet and dry gluten content. Wet gluten content was determined by weighing the gluten obtained from the dough washed under running tap water. The wet gluten was dried using air oven drying method to obtain dry gluten content. In terms of quality, the gluten was analysed in terms of volume expansion, extensibility and rheological characterisation. The volume expansion analysis was performed by frying the wet gluten in hot oil at 170oC in deep fryer for 15 minutes. The volume of fried gluten was measured using mustard seed displacement method and the difference between the volume of fried gluten and the volume of wet gluten is measured as volume expansion of gluten.Keywords : Gluten, rheological, wheat
STUDY ON FORMULATION OF POLYURETHANE/CLAY NANOCOMPOSITES BASED ON PALM OIL POLYOL Rihayat, Teuku; Mustapa, Saari B; Mahmood, Mohd Hilmi B; Yunus, Wan MD Zin Wan; Rashid, Suraya Abdul; Hj. Mohd. Dahlan, Khairul Zaman B.
Jurnal Sains dan Teknologi Reaksi Vol 22, No 01 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i01.6334

Abstract

ABSTRACT A novel segmented polyurethane/clay nanocomposites has been synthesized by polyurethane based on palm oil and Kunipia-F as organoclay with an ammonium salt of cetyltrimetyl ammonium bromide (CTAB). In this investigation, we give much interest to synthesis of polyurethane/clay based on palm oil as raw materials for polyols to open new era for partial replacement of petrochemical based polyol with palm oil based polyols. Surprising, we got the polyurethane elastomer after along time polyurethane based on palm oil only using in coating applications. However, it is the first report in investigation about polyurethane/clay nanocomposites based on palm oil. Polyurethane/clay nanocomposites were prepared by a pre- polymer method and evaluated by fourier transform infrared spectra (FTIR) and X-ray diffraction measurements (X-RD) respectively. Keywords : Nanocomposite, polyurethane, synthesis, palm oil
MINYAK NILAM : ARTIKEL REVIEW Rihayat, Teuku; Putra, Alfian; Elwina, E
Jurnal Sains dan Teknologi Reaksi Vol 22, No 02 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i02.6363

Abstract

ABSTRAK Minyak nilam komersial diperoleh dengan penyulingan uap daun kering tanaman herba, Pogostemon cablin Benth., milik keluarga Labiatae. Tanaman ini dikenal juga dengan nama P.patchouli Pellet.var. suavis Kait. F. Tanaman ini tumbuh liar di beberapa belahan dunia, namun praktik yang biasa dilakukan adalah membudidayakannya untuk tujuan penyulingan. Tanaman ini dibudidayakan secara luas di Indonesia, Malaysia, Cina dan Brazil untuk diambil minyaknya. Aroma nilam telah dikenal di dunia Timur selama berabad-abad. Pada suatu waktu, memberikan aroma melalui daun kering merupakan hal yang biasa dilakukan. Meskipun hal ini masih berlaku di satu atau dua daerah penghasil nilam untuk aplikasi tertentu, namun di luar negara produksinya, minyak atsiri sulingan uap merupakan media universal. Minyak nilam memiliki profil bau yang sangat kaya yang ditandai dengan hangat, manis, herba, pedas, berkayu, dan balsamic. Harganya relatif murah untuk produk alami dan biasanya tersedia dalam jumlah banyak. Oleh karena itu, minyak nilam sangat banyak digunakan dalam berbagai jenis parfum. Konstituen utama penyumbang bau adalah sekelompok alkohol polisiklik. Yang paling terkenal adalah alkohol nilam, norpatchoulenol, dan nortetrapatchoulol.Kata kunci : minyak nilam, alkohol nilam, norpatchoulenol, dan nortetrapatchoulo
Co-Authors Adriana Adriana Alfian Putra Amalia, Zuhra E. Elwina Elwina, E Fachraniah, F Hafidh, Muhammad Halim Zaini, Halim Helvina, Puteri Heni Pujiastuti Hj. Mohd. Dahlan, Hj. Mohd. Dahlan Hj. Mohd. Dahlan, Khairul Zaman B. Ilmi, Awanis Imaruzi, Nashru Irwan Irwan Izzati, Isra Adelya Mahmood, Mohd Hilmi B Mahmood, Mohd Hilmi B Muhammad Jefri Muhammad Yunus Mustafa, Noor Mustapa, Saari B Mustapha, Saari Mustapha, Saari B. Nurhanifa Nurhanifa Pardi Pardi, Pardi Pocut Nurul Alam Prayogi, Muhammad Akbar Rashid, Suraya Abdul Rashid, Suraya Abdul Ridwan, Ridwan Rusna, Rusna SA, Sabiila Yasara Sami, Muhammad Sri Wahyuni Syafruddin Syafruddin Syafruddin, S Tezara, C Ulfa Mutia, Ulfa Wan Yunus, Wan MD Zin Yunus, Wan MD Zin Wan Zaman B, Khairul Zulkifli Zulkifli