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All Journal Majalah Kulit, Karet, dan Plastik Jurnal Teknologi Journal of Appropriate Technology for Community Services Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Wisnu Pambudi
Department Of Rubber And Plastic Processing Technology, Politeknik ATK Yogyakarta, Indonesia
Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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FTIR-PCA analysis as an initial analysis to distinguish the origin of skin and leather Ragil Yuliatmo; R. Lukas Martindro Satrio Ari Wibowo; Wisnu Pambudi; Sofwan Siddiq Abdullah; Thoyib Rohman Hakim; Yuny Erwanto
Majalah Kulit, Karet, dan Plastik Vol 37, No 1 (2021): 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.v37i1.6348

Abstract

Leather products are parts of daily fashion in Indonesia, such as bags, shoes, jackets, and gloves. Adulteration of raw materials for leather products can occur if there are no labels on these products. Various methods such as PCR, GC-MS, HPLC, and FTIR have been carried out to distinguish the origin of leather products. The FTIR method is known as an easy and inexpensive method to use. The objective of this study was to evaluate the capability of FTIR spectroscopy and Principle Component Analysis (PCA) for lipid identifcation and initial analysis to distinguish the original materials on leather products. Lipid extracts obtained from the various skin were scanned using an FTIR spectrophotometer at 4000–450 cm-1. It resulted in spectral differences in several wavenumbers (3000-2800 cm-1 and 1200-1000 cm-1). The same result is also found in lipid spectra from leather product extraction. The FTIR spectroscopy and PCA can differentiate pigskin and goatskin through specifc peaks in infrared spectra. This can be used as an initial analysis on determining the existence of skin adulteration in leather products. This study is prospective to be continued by chemometrics as quantitative analysis.
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

Abstract

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.
Pemberdayaan Masyarakat Melalui Pembuatan Sabun Cair dari Minyak Jelantah di Bank Sampah Sidomulyo Maju Wahyu Ratnaningsih; Andri Saputra; Pani Satwikanitya; Mario Sarisky Dwi Ellianto; Latifah Listyalina; Muh Wahyu Sya'bani; Wisnu Pambudi; Uma Fadzilia Arifin
Journal of Appropriate Technology for Community Services Vol. 5 No. 1 (2024)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol5.iss1.art5

Abstract

Keberadaan limbah minyak jelantah merupakan suatu hal yang menimbulkan dampak negatif bagi manusia dan lingkungan. Minyak jelantah adalah minyak goreng bekas yang tidak dapat digunakan kembali karena akan menimbulkan gangguan kesehatan, sedangkan apabila dibuang ke lingkungan secara langsung juga akan menyebabkan masalah lain. Bank Sampah Sidomulyo Maju yang terletak di Desa Sidomulyo, Bambanglipuro, Bantul, Yogyakarta dibangun dengan tujuan untuk meningkatkan kesadaran masyarakat tentang pengelolaan sampah maupun limbah serta meningkatkan perekonomian masyarakat. Limbah minyak jelantah dari rumah tangga yang belum dikelola dengan optimal menjadi salah satu permasalahan yang dihadapi masyarakat desa setempat. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengatasi permasalahan tersebut dengan mengolah limbah minyak jelantah menjadi sabun cair. Metode kegiatan ini antara lain memberikan ceramah, diskusi, pelatihan dan pendampingan pembuatan sabun cair oleh 2 instruktur dan 8 asisten instruktur kepada 30 orang peserta yang di antaranya merupakan anggota bank sampah dan masyarakat Desa Sidomulyo. Hasil kegiatan ini berupa pengetahuan dan keterampilan masyarakat dalam melakukan pengolahan limbah minyak jelantah. Masyarakat diharapkan mampu menerapkan pengolahan limbah minyak jelantah menjadi sabun cair sehingga dapat mengurangi pencemaran lingkungan dan meningkatkan nilai tambah. Keaktifan peserta dan antusiasme juga ditunjukkan oleh kinerja peserta selama pelatihan dan produk sabun cair yang dihasilkan serta kegiatan diskusi yang aktif. Hasil evaluasi menunjukkan bahwa terjadi peningkatan nilai keterserapan materi yang disampaikan dari 50,51 menjadi 94,17. Kata kunci : bank sampah; minyak jelantah;pemberdayaan masyarakat; sabun cair ABSTRACT The existence of used cooking oil has a negative impact on humans and the environment. Used cooking oil cannot be reused because it will cause health problems, while if disposed of directly into the environment it will also cause other problems. Sidomulyo Maju Waste Bank, located in Sidomulyo Village, Bambanglipuro, Bantul, Yogyakarta, was built with the aim of increasing public awareness about waste management and improving the community's economy. Used cooking oil waste from households that has not been managed optimally is one of the problems that faced by the local village community. This community service activity aims to overcome these problems by utilization of used cooking oil waste into liquid soap. The methods of this activity include giving lectures, discussions, training the production of liquid soap by 2 instructors and 8 assistant instructors to 30 participants, including members of the waste bank and the community of Sidomulyo Village. The results of this activity are in the form of community knowledge and skills in utilization of used cooking oil waste. The community is expected to be able to apply the utilization of used cooking oil waste into liquid soap so as to reduce environmental pollution and increase added value. Participants' activeness and enthusiasm were also shown by the participants' performance during the training and the liquid soap products produced as well as active discussion activities. The evaluation results showed that there was an increase in the absorption value of the material presented from 50.51 to 94.17. Keywords : community empowerment; liquid soap; used cooking oil; waste bank
PERFORMANCE EFFECTIVENESS OF WOOJIN 170 T AND LS 170 T INJECTION MOLDING MACHINES IN 1.14 INCH HOLDER PRODUCTION: ANALYSIS OF OVERALL EQUIPMENT EFFECTIVENESS (OEE) AT PT. XYZ Wisnu Pambudi; Dewi Kumala
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol 23 No 1 (2024): Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Publisher : Politeknik ATK Yogyakarta

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

Abstract

The challenges with Woojin 170 T and LS 170 T injection molding machines manifest in a decline in effectiveness, adversely impacting the final product. This research aims to measure the effectiveness of both machines using the Overall Equipment Effectiveness (OEE) method. Measurement results reveal that the LS 170 T injection machine achieved the highest OEE, reaching 89.3%, in the first week, with an average OEE value of 84.5%. In contrast, the Woojin 170 T injection machine only achieved 83.5% in the fourth week, falling below the 85% standard, with an average OEE value of 69.2%. The OEE value of the Woojin 170 T injection machine is significantly lower than that of the LS 170 T, indicating substantial inadequacy, far below the established standards. Factors influencing machine effectiveness are identified in two key aspects: equipment failure at a percentage of 66.9% and reduce speed at a percentage of 21.5%. The causes of the low effectiveness of the Woojin 170 T injection machine are attributed to factors involving machine, method, material, and environmental aspects.
Co-Authors Abdullah, Sofwan Siddiq Andri Saputra Dewi Kumala Indarto Indarto Listyalina, Latifah Mahmud Rudini Mario Sarisky Dwi Ellianto Muh. Wahyu Syabani Muhammad Ikhwan Pani Satwikanitya R. Lukas Martindro Satrio Ari Wibowo Ragil Yuliatmo Salima Duwi Astuti Thoyib Rohman Hakim Uma Fadzilia Arifin Wahyu Ratnaningsih Warmiati Warmiati Yuny Erwanto