Ernawati, Hera and Novita, Lita (2022) PEMANFAATAN EKSTRAK SEKAM PADI DAN GETAH DAMAR SEBAGAI MATERIAL BIOCOATING PENCEGAH KOROSI PADA MILD STEEL. S1 thesis, Universitas Sultan Ageng Tirtayasa.
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Abstract
Corrosion is damage due to chemical reactions between metals or metal alloys with their environment. The use of coatings can reduce the corrosion rate, it's just that it is constrained by stability for a long time, so it is necessary to try other protections against mild steel that can cover metal with coating material. In this research, the focus is on the expertise of biocoating on mild steel using 1 molar NaOH corrosive media using natural ingredients of rice husk extract and resin gum. Rice husk and resin resin are plants that can be used as biocoating materials. Rice husk extract contains several compounds that can be used to inhibit the corrosion rate, one of which is silica. While gum resin is a natural polymer that can have flexible and stable properties that can prevent corrosion. The purpose of this study was to determine the effect of the components of the biocaoting material (rice husk extract and resin gum) on the ability to protect mild steel from 1 molar NaOh corrosive media, calculate the corrosion rate and efficiency of the biocaoting material and study the mechanism of biocoating protection against mild steel. There are five stages in the research, namely the sample preparation stage, the stage of making a latex solution, the stage of making biocaoting products, the stage of metal coating with biocoating materials. and the inhibition efficiency testing phase. The method used is the weight loss method to determine the rate of corrosion formed. The results of this study obtained the highest corrosion rate value of 0.80687496 mmpy using a biocoating concentration of 500 Ppm, a temperature of 80˚C, and an immersion time of 3 hours. While the lowest corrosion rate is 0.07684523 mmpy with a biocoating concentration of 1500 Ppm, a temperature of 40˚C, and an immersion time of 1 hour. In addition, the highest inhibition efficiency (IE%) was 88.695% at a biocoating concentration of 1500 Ppm, with a temperature of 40˚C, and an immersion time of 1 hour. While the lowest efficiency of 14.634% is at a concentration of 500 ppm with a temperature of 80˚C and an immersion time of 3 hours.
| Item Type: | Thesis (S1) | ||||||
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| Additional Information: | Korosi adalah kerusakan akibat reaksi kimia antara logam atau paduan logam dengan lingkungannya. Pemakaian coating mampu menurunkan laju korosi, cuma saja terkendala pada stabilitas buat waktu yang lama, sehingga butuh dicoba proteksi lain terhadap mild steel mampu menyelimuti logam dengan material coating. Pada riset ini difokuskan bagaimna keahlian biocoating pada mild steel dengan menggunakan media korosif NaOH 1 molar dengan menggunakan bahan alam ekstrak sekam padi serta getah damar. Sekam padi dan getah damar merupakan tanaman yang dapat digunakan sebagai bahan biocoating. esktrak sekam padi mengandung beberapa senyawa yang dapat digunakan untuk menghambat laju korosi, salah satunya adalah salah silika. Sedangkan getah damar merupakan polimer alam yang dapat yang memiliki sifat fleksibel dan stabil yang dapat mencegah terjadinyan korosi. Tujuan dari penelitian ini adalah mengetahui pengaruh komponen-komponen material biocaoting (ekstrak sekam padi dan getah damar) terhadap kemampuan dalam melindungi mild steel dari media korosif NaOh 1 molar, menghitung laju korosi dan efisiensi pada material biocaoting dan mempelajari mekanisme perlindungan biocoating terhadap mild steel. Ada lima tahap dalam penelitian yaitu tahap preparasi sampel, tahap pembuatan larutan getah, tahap pembuatan produk biocaoting, tahap pelapisan logam dengan material biocoating. dan tahap pengujian efisiensi inhibisi. Metode yang digunakan adalah metode weight loss untuk mengetahui laju korosi yang terbentuk. Hasil daripenelitian ini diperoleh niali laju korosi tertinggi sebesar 0,80687496 mmpy dengan menggunakan konsentrasi biocoating 500 Ppm, temperatur 80˚C, dan waktu perendaman selam 3 jam. Sedangkan laju korosi terendah yaitu sebsar 0,07684523 mmpy dengan konsentrasi biocoating 1500 Ppm, temperatur 40˚C, dan waktu perendaman 1 jam. Selain itu diperoleh juga nilai efisiensi inhibisi (IE%) tertinggi 88,695% pada konsentrasi biocoating 1500 Ppm, dengan temperatur 40˚C, dan waktu perendaman 1 jam. Sedangkan efisiensi terendah sebesar 14,634% berada pada konsentrasi 500 Ppm dengan temperature 80˚C dan waktu perendaman 3 jam. | ||||||
| Subjects: | Q Science > QD Chemistry | ||||||
| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 24201-Jurusan Teknik Kimia |
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| Depositing User: | Mrs Lita Novita | ||||||
| Date Deposited: | 08 Nov 2022 14:01 | ||||||
| Last Modified: | 10 Nov 2022 10:12 | ||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/17153 |
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