Maulana, Rifki (2026) Sintesis dan Karakterisasi Coating Ramah Lingkungan Berbasis Resin Epoksi Crude Palm oil dengan Adiktif Nanopartikel Cu Untuk Proteksi Antibakteri Pada Baja AISI 1018. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk mensintesis dan mengkarakterisasi coating ramah lingkungan berbasis resin epoksi dari crude palm oil (CPO) dengan penambahan nanopartikel tembaga (CuNP) sebagai agen antibakteri pada substrat baja AISI 1018. Resin epoksi disintesis melalui proses epoksidasi CPO crude palm oil menggunakan asam format dan hidrogen peroksida 1:3 dengan variasi waktu reaksi 1, 2, dan 3 jam. CuNP difungsionalisasi menggunakan GPTMS untuk meningkatkan kompatibilitas dengan matriks epoksi dan ditambahkan ke dalam formulasi coating dengan variasi konsentrasi 1% dan 2%. Aplikasi coating dilakukan menggunakan metode manual brush coating, diikuti dengan proses curing. Hasil FTIR menunjukkan keberhasilan proses epoksidasi dan curing yang ditandai dengan penurunan pita ikatan rangkap C=C pada sekitar 3010 cm⁻¹ serta munculnya pita epoksi dan ikatan C–N pada daerah 1250–820 cm⁻¹ dan 1600–1500 cm⁻¹. Analisis SEM–EDX menunjukkan bahwa variasi waktu reaksi berpengaruh signifikan terhadap dispersi CuNP. Sampel dengan waktu reaksi 3 jam dan penambahan CuNP 1% menghasilkan distribusi CuNP paling homogen tanpa aglomerasi signifikan dengan kandungan Cu sekitar 1,01 wt%, sedangkan penambahan CuNP 2% meningkatkan kandungan Cu hingga 2,62 wt% namun memicu aglomerasi lokal pada waktu reaksi yang lebih singkat. Uji antibakteri terhadap Escherichia coli dan Staphylococcus aureus menunjukkan bahwa coating dengan CuNP 1% dan waktu reaksi 3 jam memberikan efektivitas antibakteri tertinggi, masing-masing sebesar 17,64% dan 5,5%. Keunggulan penelitian ini terletak pada pemanfaatan resin epoksi berbasis CPO yang ramah lingkungan serta penggunaan CuNP dalam konsentrasi rendah namun tetap efektif secara antibakteri karena distribusi partikel yang homogen. Coating yang dihasilkan berpotensi menjadi alternatif berkelanjutan untuk menggantikan coating konvensional berbasis resin sintetis.
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This study aims to synthesize and characterize an environmentally friendly coating based on epoxy resin derived from crude palm oil (CPO) with the addition of copper nanoparticles (CuNP) as an antibacterial agent on AISI 1018 steel substrates. The epoxy resin was synthesized through the epoxidation of crude palm oil using formic acid and hydrogen peroxide 1:3 with reaction time variations of 1, 2, and 3 hours. CuNPs were functionalized with GPTMS to enhance their compatibility with the epoxy matrix and incorporated into the coating formulation at concentrations of 1% and 2%. The coating was applied using a manual brush coating method followed by a curing process. FTIR analysis confirmed the successful epoxidation and curing processes, as indicated by the reduction of C=C double bond absorption at approximately 3010 cm⁻¹ and the appearance of epoxy and C–N bonding peaks in the ranges of 1250–820 cm⁻¹ and 1600–1500 cm⁻¹, respectively. SEM–EDX analysis revealed that reaction time significantly influenced CuNP dispersion. The sample with a reaction time of 3 hours and 1% CuNP exhibited the most homogeneous CuNP distribution without significant agglomeration, with a Cu content of approximately 1.01 wt%. In contrast, the addition of 2% CuNP increased the Cu content to 2.62 wt% but led to local agglomeration at shorter reaction times. Antibacterial testing against Escherichia coli and Staphylococcus aureus demonstrated that the coating containing 1% CuNP with a reaction time of 3 hours achieved the highest antibacterial effectiveness, with inhibition values of 17.64% and 5.5%, respectively. The key advantage of this study lies in the utilization of environmentally friendly CPO-based epoxy resin combined with a low CuNP concentration that remains effective due to its homogeneous particle distribution. The resulting coating shows strong potential as a sustainable alternative to conventional synthetic resin-based coatings.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Resin epoxy Crude palm oil; CuNP; GPTSM; Coating ramah lingkungan;anti bakteri; Crude palm oil epoxy resin; CuNP; GPTSM; Environmentally friendly coating; anti bacterial |
| Subjects: | T Technology > TP Chemical technology > TP451.E3 Edible coatings. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Rifki Maulana |
| Date Deposited: | 28 Jan 2026 02:11 |
| Last Modified: | 28 Jan 2026 02:11 |
| URI: | http://repository.its.ac.id/id/eprint/130833 |
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