Analisis Pengaruh Penambahan Titanium Dioksida Terhadap Kekuatan Adhesi dan Ketahanan Korosi Cat Epoksi

Zahra, Kevin Fadila (2022) Analisis Pengaruh Penambahan Titanium Dioksida Terhadap Kekuatan Adhesi dan Ketahanan Korosi Cat Epoksi. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Baja karbon rendah menjadi material yang umum dipakai di industri kelautan karena memiliki sifat mekanik yang baik dan mudah dibentuk. Namun, lingkungan air laut yang bersifat korosif menyebabkan baja karbon rendah menjadi cepat terkorosi. Berbagai penelitian telah dilakukan untuk meningkatkan daya tahan baja karbon, salah satunya adalah pemberian proteksi penghalang berupa lapisan organik tipis untuk melindungi material dari lingkungannya. Salah satu lapisan organik yang sering digunakan adalah cat epoksi. Cat Epoksi memiliki daya lekat yang kuat dan ketahanan korosi yang baik. Dalam memperpanjang masa pakai dari cat epoksi, dilakukan penambahan berbagai macam pigmen saat pengaplikasian cat. Penelitian ini menggunakan baja karbon rendah ASTM A36 dengan variasi komposisi penambahan serbuk titanium dioksida sebesar 0%, 1%, dan 3% pada cat epoksi. Hal ini bertujuan untuk mengetahui pengaruh penambahan titanium dioksida pada cat epoksi terhadap kekuatan adhesi dan ketahanan korosi. Pada pengujian daya lekat dengan metode pull off, nilai kekuatan adhesi tertinggi didapatkan pada komposisi campuran sebanyak 0% yaitu sebesar 14,28 MPa. Pada pengujian laju korosi dengan metode sel tiga elektroda, nilai laju korosi terendah didapatkan pada komposisi campuran sebanyak 3% yaitu sebesar 0,0012566 mmpy. Berdasarkan hasil penelitian, penambahan titanium dioksida pada cat epoksi dapat mempengaruhi kualitas dari coating tersebut. Penambahan serbuk titanium dioksida sebesar 3% dapat disarankan untuk pengaplikasian karena dapat menurunkan laju korosi dan kekuatan adhesi yang masih dapat diterima.
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Low carbon steel is a material commonly used in the marine industry because it has good mechanical properties and is easy to form. However, the corrosive sea air environment causes low carbon steel to corrode quickly. Various studies have been carried out to increase the durability of carbon steel, one of which is to offer a barrier in the form of an organic layer to protect the material from its environment. One of the organic coatings that are often used is epoxy paint. Epoxy paint has strong adhesion and good corrosion resistance. In extending the life of the epoxy paint, various kinds of pigments are added when applying the paint. This study uses ASTM A36 low carbon steel with variations in the composition of the addition of titanium dioxide powder of 0%, 1%, and 3% on the epoxy paint. This aims to determine the additional effect of titanium on epoxy paint adhesion strength and corrosion resistance. In the adhesive strength test using the pull off method, the highest value of adhesion strength was found in the composition of the mixture as much as 0%, which was 14.28 MPa. In testing the corrosion rate with the three-electrode cell method, the lowest corrosion rate value was obtained at the composition of the mixture as much as 3%, which was 0.0012566 mmpy. Based on the research results, the addition of titanium dioxide to the epoxy paint can affect the quality of the coating. The addition of 3% titanium dioxide powder can be recommended for application because it can reduce corrosion and the adhesion strength is still acceptable.

Item Type:	Thesis (Other)
Additional Information:	RSKe 620.112 23 Zah a-1 2022
Uncontrolled Keywords:	Baja Karbon Rendah, Pelapis Epoksi, Titanium Dioksida, Adhesi, Korosi
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.74 Corrosion and anti-corrosives T Technology > TA Engineering (General). Civil engineering (General) > TA455.A34 Adhesives
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	- Davi Wah
Date Deposited:	18 Jul 2024 05:46
Last Modified:	18 Jul 2024 05:46
URI:	http://repository.its.ac.id/id/eprint/108319

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