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All Journal Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya ETAM: Jurnal Pengabdian kepada Masyarakat
Marlinda
Politeknik Negeri Samarinda
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Pelatihan Pembuatan Eco Enzim dari Sampah Organik Rumah Tangga pada Kelompok Cleaning Service Politeknik Negeri Samarinda Marlinda; Mardhiyah Nadir; Ramli
Jurnal ETAM Vol. 2 No. 1 (2022): APRIL
Publisher : Politeknik Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.159 KB) | DOI: 10.46964/etam.v2i1.255

Abstract

Kegiatan Pengabdian ini adalah pelatihan membuat eco enzim dari sampah rumah tangga di lingkungan cleaning service, pelatihan ini mengajarkan tentang pembuatan eco enzim dan aplikasinya untuk kebutuhan rumah tangga seperti untuk mengepel dan mencuci piring dan kegiatan ini banyak dilakukan oleh cleaning service. Memberikan transfer ilmu kepada masyarakat utamanya bagi kelompok masyarakat yang pekerjaannya berinteraksi dengan kebersihan yaitu cleaning service yang keberadaannya sangat mendukung proses terlaksananya kegiatan belajar mengajar dan kegiatan lainnya di dalam kampus Politeknik Negeri Samarinda. Selain pembuatan juga diajarkan untuk mengaplikasikan eco enzim menjadi kebutuhan sehari-hari seperti untuk sabun cuci, sabun mandi, mengepel lantai, desinfektan dan lain-lain.
ADHESIVE BEHAVIOR OF POLYCAPROLACTONE/HYDROXYAPATITE COATINGS ON 316L STAINLESS STEEL: A DESIGN OF EXPERIMENTS APPROACH Agung Prabowo; Ahmad Fadli; Heni Sugesti; Muh Irwan; Syarifuddin Oko; Gading Bagus Mahardika; Marlinda
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6212

Abstract

Enhancing the adhesive strength of bioactive coatings is crucial for improving the mechanical stability of metallic implants. This study investigates the effects of three processing parameters—sonication temperature (X₁), PCL/HA ratio (X₂), and drying time (X₃)—on the adhesive strength of poly(ε-caprolactone)/hydroxyapatite (PCL/HA) composite coatings applied to 316L stainless steel substrates. A full factorial 23 experimental design was employed, and the results were analyzed using analysis of variance (ANOVA) and regression modeling. The adhesive strength response ranged from 19.62 MPa to 63.27 MPa. Among the factors studied, the PCL/HA ratio had the most significant positive effect, while drying time showed a minor influence. Interaction plots and response surface analyses revealed a synergistic effect between sonication temperature and PCL/HA ratio, contributing to improved bonding at the coating-substrate interface. The optimization results yielded a predicted maximum adhesive strength of 25.76 MPa at a desirability score of 0.03, highlighting the complexity of parameter interactions. These findings underscore the importance of processing conditions in tailoring coating performance for biomedical applications.
Co-Authors Agung Prabowo Ahmad Fadli Gading Bagus Mahardika Heni Sugesti Mardhiyah Nadir Muh Irwan Ramli Syarifuddin Oko