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All Journal Majalah Kulit, Karet, dan Plastik Jurnal Sains & Teknologi Lingkungan Communications in Science and Technology Jurnal Agrotek UMMat Jurnal Rekayasa Hijau Jurnal Teknologi Logic : Jurnal Rancang Bangun dan Teknologi Indonesian Journal of Halal Research Journal of Appropriate Technology for Community Services IJCR (Indonesian Journal of Chemical Research) Journal of Applied Agricultural Science and Technology Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Jurnal Teknologi Kimia Mineral

Muh. Wahyu Syabani

Politeknik ATK Yogyakarta

Author-ID : 515056

Religion Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Pengaruh pengawetan kulit ikan buntal (Arothon reticularis) terhadap suhu kerut ditinjau melalui analisis differential scanning calorimeter (DSC) Wibowo, R. Lukas Martindro Satrio Ari; Syabani, Muh. Wahyu
Majalah Kulit, Karet, dan Plastik Vol 31, No 2 (2015): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

The aim of this study was to determine the effect of the skin preservation type against shrinkage temperature of leather. The material used in this study was the skin of pufferfish (Arothon reticularis) that have been preserved by salting, formaldehyde and pickling and also raw skin as a reference. The method used to measure the shrinkage temperature was thermal analysis using Differential Scanning Calorimeter (DSC) that operated from 4Â°C up to 440Â°C with nitrogen stream. DSC measurement results showed that shrinkage temperature of puffer fish preserved with formaldehyde was higher than salting and pickling, which is 63.64Â°C; 47.95Â°C; 57.37oC respectively. The advantage of using formaldehyde compared to others preservation technique was not only can protect the skin from damage by microorganisms, but also can create a bond with the collagen .Keyword: Puffer fish, differential scanning calorimeter, skin preservation.ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh jenis pengawetan kulit terhadap indikator penting kualitas kulit yaitu shrinkage temperature. Material yang digunakan adalah kulit ikan buntal (Arothon reticularis) yang sudah diawetkan dengan penggaraman, formaldehid dan pengasaman serta kulit mentah sebagai blangko. Metode yang digunakan untuk mengukur shrinkage temperature adalah analisis thermal menggunakan Differential Scanning Calorimeter (DSC) yang dioperasikan mulai suhu 4oC sampai dengan 440oC dengan aliran gas nitrogen. Hasil pengukuran DSC menunjukkan shrinkage temperature kulit ikan buntal awetan formaldehid lebih tinggi dibandingkan awetan penggaraman dan pengasaman, yaitu berturut-turut 63,64 oC; 47,95 oC; 57,37 oC. Kelebihan dari formaldehid selain dapat melindungi kulit dari kerusakan oleh mikroorganisme, juga dapat membuat ikatan dengan kolagen kulit. Kata kunci: Ikan buntal, Differential Scanning Calorimeter, pengawetan kulit.

Pengaruh pengawetan kulit ikan buntal (Arothon reticularis) terhadap suhu kerut ditinjau melalui analisis differential scanning calorimeter (DSC) R. Lukas Martindro Satrio Ari Wibowo; Muh. Wahyu Syabani
Majalah Kulit, Karet, dan Plastik Vol 31, No 2 (2015): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20543/mkkp.v31i2.507

The aim of this study was to determine the effect of the skin preservation type against shrinkage temperature of leather. The material used in this study was the skin of pufferfish (Arothon reticularis) that have been preserved by salting, formaldehyde and pickling and also raw skin as a reference. The method used to measure the shrinkage temperature was thermal analysis using Differential Scanning Calorimeter (DSC) that operated from 4°C up to 440°C with nitrogen stream. DSC measurement results showed that shrinkage temperature of puffer fish preserved with formaldehyde was higher than salting and pickling, which is 63.64°C; 47.95°C; 57.37oC respectively. The advantage of using formaldehyde compared to others preservation technique was not only can protect the skin from damage by microorganisms, but also can create a bond with the collagen .Keyword: Puffer fish, differential scanning calorimeter, skin preservation.ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh jenis pengawetan kulit terhadap indikator penting kualitas kulit yaitu shrinkage temperature. Material yang digunakan adalah kulit ikan buntal (Arothon reticularis) yang sudah diawetkan dengan penggaraman, formaldehid dan pengasaman serta kulit mentah sebagai blangko. Metode yang digunakan untuk mengukur shrinkage temperature adalah analisis thermal menggunakan Differential Scanning Calorimeter (DSC) yang dioperasikan mulai suhu 4oC sampai dengan 440oC dengan aliran gas nitrogen. Hasil pengukuran DSC menunjukkan shrinkage temperature kulit ikan buntal awetan formaldehid lebih tinggi dibandingkan awetan penggaraman dan pengasaman, yaitu berturut-turut 63,64 oC; 47,95 oC; 57,37 oC. Kelebihan dari formaldehid selain dapat melindungi kulit dari kerusakan oleh mikroorganisme, juga dapat membuat ikatan dengan kolagen kulit. Kata kunci: Ikan buntal, Differential Scanning Calorimeter, pengawetan kulit.

BIO ADSORBENT SERBUK KAYU NANGKA SEBAGAI PENJERAP ION Pb(II) DARI LARUTAN Tintin Mutiara; Lucky Wahyu Nuzulia Setyaningsih; Muh. Wahyu Syabani; Khairunisa Betariani; Qonita Usthufiya
Jurnal Sains & Teknologi Lingkungan Vol. 10 No. 1 (2018): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol10.iss1.art4

Penelitian ini dilaksanakan untuk mempelajari karakteristik bio adsorbent dari serbuk kayu nangka dan meneliti kemungkinannya sebagai penjerap ion logam berat dari larutan. Percobaan adsorpsi dilakukan untuk menghitung kapasitas penjerapan bio adsorbent. Penelitian ini membuktikan bahwa pH larutan mempengaruhi perilaku penjerapan, dengan menaikkan nilai pH dari 2 hingga 4, maka kapasitas penjerapan juga meningkat. pH optimum larutan untuk penjerapan ion Pb(II) ke dalam bio adsorbent adalah pH 4. Model kinetika pseudo order dua cocok untuk menggambarkan proses penjerapan ion Pb(II) ke dalam bio adsorbent. Dari perhitungan model kinetika, diperoleh nilai kapasitas penjerapan pada kesetimbangan adalah 1,907 mg/g. Hasil analisa FTIR menunjukkan bahwa ikatan C–H, gugus karbonil –C=O dan gugus nitril –C≡N memberikan kontribusi pada pengikatan ion Pb(II) di permukaan bio adsorbent.

PENGARUH PENAMBAHAN KARET REKLIM DARI LIMBAH OUTSOLE TERHADAP SIFAT FISIS DAN SIFAT THERMAL PRODUK OUTSOLE SEPATU (STUDI KASUS DI CV. CARITA NIAGA) Muh. Wahyu Syabani; Fikri Irfani Fauziyyah; Tintin Mutiara
Jurnal Sains & Teknologi Lingkungan Vol. 10 No. 1 (2018): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol10.iss1.art3

Limbah padat industri karet sukar mengalami degradasi di alam sehingga memerlukan pengelolaan dengan baik. Penelitian ini bertujuan untuk mempelajari pengaruh penambahan karet reklim dari limbah outsole terhadap sifat fisis dan sifat thermal dari produk outsole. Pencampuran karet dan bahan aditif lainnya dilakukan menggunakan mesin kneader dan open mill sedangkan proses vulkanisasi dilakukan dengan mesin hydraulic press. Variasi yang digunakan adalah jumlah karet reklim yang ditambahkan yaitu 12,5; 37,5 dan 62,5 phr. Hasil penelitian ini menunjukan bahwa produk outsole dengan penambahan karet reklim memberikan hasil organoleptis berupa permukaan rata, tidak retak, tidak pecah, tidak kotor dan kesamaan ukuran untuk semua variasi. Pengujian fisis menunjukan ketahanan kikis, kuat tarik dan perpanjangan putus akan mengalami penurunan, sedangkan nilai kekerasan cenderung naik dengan penambahan karet reklim. Ketahanan retak lentur menunjukan hasil untuk penambahan 12,5 dan 37,5 phr dalam kondisi baik dan tidak retak, sedangkan pada 62,5 phr sudah mengalami keretakan. Hasil pengujian kestabilan thermal menunjukan bahwa sampel memiliki kestabilan thermal relatif sama. Hasil penelitian ini menunjukan jika penambahan karet reklim dari limbah outsole sampai 37,5 phr memiliki potensi tinggi sebagai filler pada kompon karet untuk outsole.

The effect of PVC’s resin K-value on the mechanical properties of the artificial leather Muh. Wahyu Syabani; Cynthia Devi; Indri Hermiyati; Andreas D Angkasa
Majalah Kulit, Karet, dan Plastik Vol 35, No 2 (2019): Majalah Kulit, Karet, dan Plastik
Publisher : Center for Leather, Rubber, and Plastic Ministry of Industry, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20543/mkkp.v35i2.5639

Artificial leather offer wide variety of application thus the demand is increased over time. The variation of the product needs different properties that can be achieved using resin with suitable k-value.This works reports the influence of the resin k-value on the mechanical properties of the artificial leather. The combination of various resin with different k-value (66, 68, 72, 74, and 76)is used and the tensile strength and elongation at break of the product were evaluated. The results show that blending the PVC resin with different k-value can be used to adjust the easier processing of the lower k-value and better mechanical properties of the higher k-value. Larger k-value differences between two resin make more difficulties of resin blending thus give more defect. For the blending of two resin, the tensile strength and elongation value would be between both of the resin initial properties. The final properties will be closer to the resin with a higher percentage in the resin blending.

Effect of UV Aging on Physical Properties of Vulcanized Rubber with the Addition of Reclaimed Rubber Muh. Wahyu Syabani; Yuli Suwarno; Mertza Fitra Agustian
Logic : Jurnal Rancang Bangun dan Teknologi Vol 19 No 3 (2019): November
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Negeri Bali

Rubber solid waste amount increased continuosly and caused environmental problem since it is very difficult to be naturally degraded. Therefore, the interest of using rubber waste as raw material for new rubber product is increased. Reclaimed rubber can be used as filler aditif for rubber processing. The aim of this research was to study the effect of UV aging on the rubber product as the reclaimed filler added. The mixing of the rubber and the additives used the kneader and open mill. The vulcanization process was done by hydraulic press. In this research, the reclaimed rubber addition was varied as follows: 12,5; 37,5 and 62,5 phr. The products quality differences before and after the UV aging evaluated using physical tests. The result of FTIR showed that the polymer chain were broken by ultraviolet radiation. The physical test gives result that the hardness and tensile strength decreased, but the elongation is increased after UV aging.

Pengaruh Waktu Kalsinasi Abu Cangkang Kelomang (Paguroidea) pada Suhu Tinggi dalam Pembentukan Katalis Padat CaO Amirul Mukminin; Muhammad Firdaus; Yuniarti Yuniarti; Muh Wahyu Syabani
INDONESIAN JOURNAL OF CHEMICAL RESEARCH (IJCR) VOLUME 4, ISSUE 1, 2019
Publisher : Universitas Islam Indonesia

Katalis CaO dari abu cangkang kelomang (Paguroidea) telah berhasil dibuat melalui proses kalsinasi pada suhu 900°C selama 4 jam. Variasi waktu kalsinasi 2, 3, dan 4 jam dilakukan untuk mempelajari tentang perubahan fasa sampel. Hasil difraksi sinar-X dari abu cangkang kelomang untuk 2 dan 3 jam menunjukkan bahwa puncak-puncak karakteristik CaCO3 kalsit sedangkan untuk 4 jam berupa kalsium oksida (CaO) dengan puncak karaktersitik pada 2 theta = 32,16°; 37,15°; 53,54°; 64,16° dan 67,5° yang dikonfirmasi sesuai dengan standard CaO (JCPDS N. 82-1690). Hasil SEM menunjukkan informasi topografi dari morfologi partikel katalis untuk waktu 2 dan 3 jam berbentuk agregat yang kurang homogen, jika dibandingkan dengan hasil kalsinasi pada waktu yang lebih lama yaitu 4 jam. Sebaran ukuran parikel untuk 2, 3 dan 4 jam masing-masing memberikan ukuran 0,3 mm-1,5 µm, 34,7 µm – 1,25 µm, dan 11,4 µm – 1 µm. Hasil TGA/DSC menunjukan 43,92 % cangkang kelomang mampu terkonversi menjadi CaO dan CaCO3 pada 900°C. Kata kunci: Katalis CaO, katalis heterogen, biodisel

Pengaruh Waktu Aging pada Pembuatan Nano Particle Geothermal Silica (NPGS) wisnu pambudi; Muh. Wahyu Sya’bani; Warmiati Warmiati; Muhammad Ikhwan
Jurnal Teknologi Vol 10, No 1 (2022): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i1.199

Pembangkit Listrik Tenaga Panas Bumi (PLTP) Dieng menghasilkan lumpur geothermal (silica scaling) yang kandungan terbesarnya adalah silika. Silica scaling tersebut akan menjadi bahan baku natrium silikat. Natrium silikat tersebut selanjutnya digunakan untuk membuat nanosilika. Tujuan penelitian ini adalah untuk mengetahui pengaruh waktu aging terhadap ukuran partikel pada pembuatan nanosilika. Metode yang digunakan untuk mensintesis nanosilika yaitu metode sol-presipitasi. Penelitian diawali dengan membuat larutan natrium silikat primer dan sekunder dan dilanjutkan pengasaman dengan asam sulfat. Kemudian dilakukan tahap aging dengan variasi waktu aging terhadap campuran yang terbentuk. Nanosilika yang dihasilkan pada penelitian ini dikarakterisasi menggunakan FTIR dan TEM. Hasil karakterisasi FTIR nanosilika menunjukkan adanya gugus siloksan (Si-O-Si). Hasil karakterisasi TEM nano partikel dengan waktu aging 1 hari, 3 hari dan 5 hari yaitu 19,31 nm; 19,67 nm dan 19,75 nm berturut-turut.

Pengaruh nilai K-value dan Penambahan Filler terhadap Kualitas Kulit Sintetis berbasis Polivinil Klorida Muh. Wahyu Syabani; Ina Amaliana; Yuniarti Yuniarti
Jurnal Teknologi Vol 10, No 1 (2022): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i1.200

Synthetic leather is generally made using polyvinyl chloride or polyurethane resins by coating method. The balance between quality and production costs of the final product is influenced by the selection of the right material composition. Polyvinyl chloride resins are available in a variety of k-values, while fillers are often added to modify mechanical characteristics and lower the costs. The aim of this study was to examine the effect of the k-value of polyvinyl chloride blend and the amount of filler on the quality of synthetic leather. Plastisol is prepared by mixing resin, primary plasticizer, secondary plasticizer, and stabilizer according to the formulation. PVC resin blend with different k-values and certain amount of filler (10, 20, 30 and 40 phr) were used. The quality of the samples was tested using adhesion strength, tensile strength, and elongation at break testing according to ASTM D751-06. The results showed that resins blend with different k-values could be used to obtain the desired quality. The value of the adhesion strength, tensile strength and elongation at break will approach the characteristics of the larger part of the resin. The homogeneity of plastisol because of resin blend also needs attention, especially if the k-value difference between two resin is too large. Meanwhile, the use of calcium carbonate as filler in general will reduce the test results obtained.

Study of the Effect of Bioplasticizer Type of Epoxy Used Cooking Oil on the Mechanical Properties of Rubber Vulcanizate Andri Saputra; Pani Satwikanitya; Muh Wahyu Sya’bani; Mertza Fitra Agustian
Jurnal Teknologi Vol 10, No 2 (2023): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i2.222

The high volume of used cooking oil is one of the biggest obstacles. Unsaturated fatty acids in waste cooking oil have the potential as a raw material for producing plasticizer of epoxy oil. The development of renewable plasticizers based on natural materials to replace petroleum plasticizers has become the concern of many researchers due to the issue of depletion of petroleum raw materials, environmental problems, and health issues caused by petroleum plasticizers. This research aims to study the effect of different types of epoxy used cooking oil plasticizers on the mechanical properties of rubber vulcanizates. Used cooking oil that still contains unsaturated fatty acids was epoxidized by reflux method at 60oC using n-hexane solvent, glacial acetic acid catalyst and IR-120 amberlite resin, and oxygen donor hydrogen peroxide for 4 hours (MJE4), 6 hours (MJE6), and 8 hours (MJE8). The epoxy used cooking oil was characterized for oxirane number using the titration method. The epoxy cooking oil plasticizer was applied to the rubber compound and the mechanical properties of the rubber vulcanizate were tested. The analysis showed that MJE8 was the epoxy cooking oil with the highest oxirane number of 2.42% with a relative oxirane conversion of 84.92%. Epoxy cooking oil that has a higher oxirane content can increase the hardness and abrasion index, and reduce the tensile strength, elongation at break, and tear strength of rubber vulcanizates. The use of MJE8 produced rubber vulcanizates with higher elasticity properties, such as tensile strength (19.1 N/mm2), elongation at break (792.3%), and tear strength (26 N/mm). Meanwhile, MJE4 produced rubber vulcanizates with higher hardness and abrasion index with values of 68.7 HA and 90.8%, respectively.

Co-Authors Agus Prasetya Agustian, Mertza Fitra Ahmad Faisal Rosadi Amirul Mukminin Amirul Mukminin Andreas D Angkasa Andri Saputra Andri Saputra Andri Saputra Arief Krisna Wibowo Cynthia Devi Ega Holiyan Meilia Langga Fikri Irfani Fauziyyah Fitria Puspita Heni Fitri Astuti Hermiyati, Indri Hernandha, Rahmandhika Firdauzha Hary Herry Suseno Ilmannafia, Danuraja Ina Amaliana Indahwati, Luthfi Auliya Indra Perdana Indri Hermiyati Iswahyuni Iswahyuni Khairunisa Betariani Listyalina, Latifah Lucky Wahyu Nuzulia Setyaningsih Mario Sarisky Dwi Ellianto Mertza Fitra Agustian Mertza Fitra Agustian Mertza Fitra Agustian Muhammad Firdaus Muhammad Firdaus Muhammad Ikhwan Muhammad Ikhwan Nastiti Afiati Pani Satwikanitya Pani Satwikanitya Prayitno, Kutut Aji Putra Oktavianto Qonita Usthufiya R. Lukas Martindro Satrio Ari Wibowo R. Lukas Martindro Satrio Ari Wibowo, R. Lukas Martindro Satrio Ari R.L.M.S. Ari Wibowo Raden Bagus Seno Wulung Ratri Retno Utami RLM. Satrio Ari Wibowo Rochmadi RR. Ella Evrita Hestiandari Saputri, Lestari Hetalesi Saraswati, Henny Satwikanitya, Pani Sri Sumarni Suharyanto Suharyanto Suharyanto Tintin Mutiara Uma Fadzilia Arifin Wahyu Ratnaningsih Warmiati Warmiati Warmiati Warmiati, Warmiati Wisnu Pambudi wisnu pambudi Yuli Suwarno Yuniarti Yuniarti Yuniarti Yuniarti Yuniarti Yuniarti

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