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KARAKTERISASI PENAMBAHAN KITOSAN DAN HAP PADA PLA TERHADAP SIFAT MEKANIK KOMPOSIT Serfandi, Dina Novera; Setyarini, Putu Hadi; Purnami, Purnami; Sulistyono, Sulistyono
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1475

Abstract

PLA (poly lactid acid) is a biodegradable polyester that can be applied to tissue engineering because it is biocompatible and non-toxic. The purpose of this study to determine the mechanical characteristics of mixing PLA, chitosan, and Hydroxyapatite. There were 4 variations in this study, namely PLA 100 (pure PLA), PLA-chitosan-Hydroxyapatite 94-3-3 (Mix 1), PLA-chitosan-Hydroxyapatite 94-0-6 (Mix 2), PLA-chitosan-Hydroxyapatite 94-6-0 (Mix 3). The method of processing specimens is carried out by mixing the material using an extrusion machine to form filaments, then the filaments are cut to a size of 3-5 mm for injection processing with a process temperature of 170-190°C and an injection pressure of 5 Bar. The tensile strength value of the composite decreased by 0.14% from the tensile strength value of pure PLA it’s cause of the characteristic of chitosan and HAp were stiff and brittle.
KARAKTERISASI BIODEGRADASI PADA KOMPOSIT POLYMER POLYLACTID ACID (PLA) DENGAN PENAMBAHAN CHITOSAN DAN HYDROXYAPATITE Serfandi, Dina Novera; Setyarini, Putu Hadi; Purnami, Purnami; Sulistyono, Sulistyono
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1476

Abstract

Polylactid Acid (PLA) is a biodegradable polymer made from natural ingredients so it is safe to use for biomaterials. The purpose of this study was to determine the biodegradation characteristics of the addition of chitosan powder and Hydroxyapatite to PLA. There were 4 variations in this study, namely PLA 100 (pure PLA), PLA-chitosan-Hydroxyapatite 94-3-3 (Composite 1), PLA-chitosan-Hydroxyapatite 94-0-6 (Composite 2), PLA-chitosan-Hydroxyapatite 94-6-0 (Composite 3). Samples were prepared using the extrusion method to form filaments, then the filaments were injected with a temperature of 170-190°C and an injection pressure of 5-6 bar. Characterization was carried out using the Immerse Test, FTIR Test, and SEM-EDS Test. The results of the Immerse Test showed an increase in sample mass of 1.04%, 1.1%, 1.05% and 1.14% respectively. FTIR test results did not show any new functional groups in the composite. The results of the SEM test indicated the presence of Na and Cl deposits on the sample surface as evidenced by the results of the EDS test that all samples contained Na and Cl elements. So that the weight gain occurs because the three materials are not chemically mixed which easily separate and cause cavities, these cavities are filled with HBSS liquid.
SOLAR PANEL APPLICATION IN KOI SPAWNING PONDS FOR IMPROVED FISH FARMING PRODUCTIVITY IN TULUNGAGUNG Adiwidodo, Satworo; Asrori, Asrori; Witono, Kris; Fakhruddin, Muhammad; Pranoto, Bayu; Yudiyanto, Eko; Sulistyono, Sulistyono
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 8 No. 4 (2024): DESEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v8i4.2484

Abstract

The Community Service (CS) program took place in Sumberingin Kidul Village, Ngunut District, Tulungagung Regency, approximately 100 km southwest of Malang City. The target group for this program includes small and medium enterprises (SMEs) engaged in koi fish spawning. Our partners face several challenges, primarily the reliance on aeration pumps powered by the national electricity grid (PLN) to supply oxygen to the ponds. The program aimed to install a 100 Wp solar panel system to generate clean energy for a low-voltage aeration pump, helping to maintain optimal oxygen levels in the pond and supporting healthy fish growth. The program successfully implemented this solar-powered aerator pump system in the pond area, providing an innovative, sustainable solution that empowers the community by integrating science and technology into fisheries. It is hoped that this program will inspire other fish farmers in Tulungagung and surrounding areas to adopt similar sustainable practices.
RANCANG BANGUN MESIN PEMINTAL AGEL Antana, Aan Eddy; Yogopranoto, Demas; Sulistyono, Sulistyono
Dinamika Kerajinan dan Batik: Majalah Ilmiah Vol. 33 No. 2 (2016): Dinamika Kerajinan dan Batik: Majalah Ilmiah
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Industri Kerajinan dan Batik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22322/dkb.v33i2.1630

Abstract

Industri kerajinan agel telah ada dan berkembang di beberapa wilayah di Indonesia. Sentra industri tali (tampar) agel berada di Desa Kapasan, Kecamatan Nguling, Kabupaten Pasuruan, sedangkan sentra industri kerajinan agel berada di Kecamatan Sentolo, Kabupaten Kulonprogo. Industri ini menghasilkan berbagai macam produk kerajinan bernilai ekonomi tinggi seperti; tas, topi, furnitur, noken dan masih banyak lagi produk kerajinan lainnya. Permasalahan yang dihadapi industri kerajinan agel adalah proses produksi dilakukan secara manual dengan keterbatasan  pada kapasitas produksi dan ketidakstabilan kualitas produk bahan baku tali agel.  Tujuan penelitian ini adalah untuk membuat prototype mesin pintal agel yang dapat mempersingkat tahapan proses dan meningkatkan kapasitas produksi industri kerajinan agel.  Metode yang digunakan yaitu pengumpulan data melalui survey literatur dan lapangan, perancangan desain, penyiapan bahan dan alat, pembuatan mesin, uji coba dengan variabel kecepatan putaran dan panjang agel, analisa dan pembahasan hasil uji coba. Penelitian ini menghasilkan satu unit mesin pemintal agel dengan spesifikasi panjang: 110 cm, lebar: 46 cm, tinggi: 90 cm, kapasitas produksi : 47 m/jam, penggerak motor listrik 1 phase, 220 volt, 250 watt, 1400 rpm.