Pengaruh Penambahan Ekstrak Mangrove Avicennia marina Terhadap Penempelan Biofouling Pada Coating Epoxy

Aisyah, Dwi Maharani (2021) Pengaruh Penambahan Ekstrak Mangrove Avicennia marina Terhadap Penempelan Biofouling Pada Coating Epoxy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Biofouling menjadi salah satu masalah terkait pemeliharaan konstruksi pada perkembangan industri dalam bidang konstruksi maritim karena dampak penempelan biofouling dapat mempengaruhi produktifitas konstruksi. Masalah ini dapat diatasi dengan cara melakukan coating menggunakan cat berbasis alami untuk mengurangi dampak ekologi yang akan terjadi. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penambahan ekstrak mangrove Avicennia marina sebagai senyawa antifouling yang dicampurkan pada cat epoksi. Penelitian ini dilakukan dengan cara mencampurkan ekstrak mangrove Avicennia marina dengan cat epoksi. Kemudian paduan tersebut diaplikasikan sebagai coating pada spesimen baja ASTM A36. Selanjutnya dilakukan pengujian aktivitas biofouling dengan perendaman spesimen pada larutan yang berisi Littorina littorea sebagai biota biofouling, pengujian laju korosi menggunakan weight loss, dan pengujian adhesi menggunakan metode pull-off. Hasil rata-rata pengujian aktivitas penempelan biofouling dengan konsentrasi penambahan ekstrak mangrove sebesar 0%, 10%, 20%, dan 30% berturut-turut 24,0 gr, 20,5 gr, 13,5 gr, dan 6 gr dan hasil pengujian laju korosi berturut-turut 12,931 mpy, 8,516 mpy, 7,236 mpy, dan 4,179 mpy. Hal ini menunjukkan bahwa bahwa semakin banyak penambahan ekstraksi mangrove maka semakin kecil aktivitas penempelan biofouling dan laju korosi yang terjadi pada spesimen. Namun, hasil rata-rata pengujian adhesi dengan konsentrasi penambahan ekstrak mangrove sebesar 0%, 10%, 20%, dan 30% berturut-turut 10,148 Mpa, 8,850 Mpa, 8,495 Mpa, dan 8,185 Mpa, hal ini menunjukkan bahwa semakin banyak penambahan ekstrak mangrove maka semakin menurun kekuatan adhesi lapisan coating pada spesimen.
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Biofouling is one of the problems related to construction maintenance in the development of the maritime construction industry because the impact of biofouling adhesion can affect construction productivity. This problem can be overcome by coating using natural-based paints to reduce the ecological impact. This study aims to determine the effect of the addition of Avicennia marina mangrove extract as an anti-fouling compound mixed with epoxy paint. This research was conducted by mixing Avicennia marina mangrove extract with epoxy paint. Then the alloy is applied as a coating on the ASTM A36 steel specimen. Furthermore, biofouling activity testing was carried out by immersing the specimen in a solution containing Littorina littorea as biofouling, testing the corrosion rate using weight loss, and testing adhesion using the pull-off method. The average results of the biofouling bonding activity test with the addition of mangrove extract concentrations of 0%, 10%, 20%, and 30% respectively 24,0 gr, 20,5 gr, 13,5 gr, and 6 gr and the test results the corrosion rate was 12,931 mpy, 8,516 mpy, 7,236 mpy, and 4,179 mpy, respectively. This shows that the more the addition of mangrove extraction, the smaller the biofouling activity and corrosion rate that occurs in the specimen. However, the average results of adhesion testing with the addition of mangrove extract concentrations of 0%, 10%, 20%, and 30% were 10,148 Mpa, 8,850 Mpa, 8,495 Mpa, and 8,185 Mpa respectively, this shows that the more the extract was mangroves added then decreased the coating adhesion strength of the specimens.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	biofouling, coating, epoxy, mangrove, Avicennia marina, epoksi
Subjects:	T Technology > TP Chemical technology > TP248.3 Biochemical engineering. Bioprocess engineering T Technology > TS Manufactures T Technology > TS Manufactures > TS320 Steel--Metallurgy. T Technology > TS Manufactures > TS699 Powder coating of metals
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Dwi Maharani Aisyah
Date Deposited:	28 Feb 2021 12:57
Last Modified:	28 Feb 2021 12:57
URI:	http://repository.its.ac.id/id/eprint/82968

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