PENGHAMBATAN LAJU KOROSI MENGGUNAKAN EKSTRAK LIMBAH DAUN KELAPA SAWIT SEBAGAI INHIBITOR KOROSI ALAMI PADA APLIKASI BAJA KARBON ASTM A36 MEDIA NaCl 3,5%

Darmawan, Hari (2023) PENGHAMBATAN LAJU KOROSI MENGGUNAKAN EKSTRAK LIMBAH DAUN KELAPA SAWIT SEBAGAI INHIBITOR KOROSI ALAMI PADA APLIKASI BAJA KARBON ASTM A36 MEDIA NaCl 3,5%. Bachelor thesis, Institut Teknologi Kalimantan.

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Abstract

Korosi menjadi suatu fenomena yang terjadi secara alami pada material yang mana material tersebut terpapar dengan suatu lingkungan yang terhubung langsung dengan lingkungan. Inhibitor korosi adalah zat yang bila ditambahkan ke lingkungan dalam konsentrasi rendah akan efektif dalam mengurangi laju korosi logam di lingkungan tersebut. Daun kelapa sawit digunakan sebagai penghambat korosi dan diketahui mengandung senyawa seperti alkaloid, flavonoid dan tanin. Proses ekstraksi dilakukan dengan metode maserasi dengan menambahkan 200gram serbuk daun kelapa sawit yang dilarutkan dalam 1500 ml etanol 96%. Untuk media larutan elektrolit menggunakan NaCL 3,5% yang kemudian ditambahkan konsentrasi inhibitor sebesar 0, 100, 200, 300, 400 dan 500 ppm. Kemudian benda uji dilakukan proses perendaman selama 10, 20 dan 30 hari. Kemudian sampel diuji korosi menggunakan metode weight loss dan polarisasi. Inhibitor ekstrak daun kelapa sawit didapatkan nilai laju korosi yang dapat berkurang dengan menambahkan inhibitor pada larutan NaCl 3,5%. Efisiensi tertinggi dicapai pada konsentrasi 100 ppm dengan nilai 81,187% dengan lama perendaman 30 hari.

Item Type: Thesis (Bachelor)
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TN Mining engineering. Metallurgy
Divisions: Jurusan Ilmu Kebumian dan Lingkungan > Teknik Material dan Metalurgi
Depositing User: Hari Mawan Darmawan
Date Deposited: 21 Jul 2023 01:46
Last Modified: 21 Jul 2023 01:46
URI: http://repository.itk.ac.id/id/eprint/20295

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