Piliang, Adella (2021) Studi Pengaruh Variasi Waktu Agitasi Terhadap Morfologi dan Sifat Termal Mikrokapsul Polysulfone Berbasis Minyak Tung sebagai Self-Healing Coating. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Self-healing coating adalah kemampuan lapisan untuk dapat menyembuhkan diri sendiri dari suatu goresan material. Tujuan dari penelitian ini adalah untuk menganalisis pengaruh variasi waktu agitasi pada proses sintesis mikrokapsul terhadap morfologi dan sifat termal untuk aplikasi self-healing coating. Metode yang digunakan adalah solvent evaporation method dengan variasi waktu agitasi 1, 2, 3, dan 4 jam. Minyak tung dipilih karena sifatnya sebagai agen penyembuh dan polysulfone dipilih karena sifatnya yang memiliki ketahanan termal yang baik. Pengamatan mikroskop optik menunjukkan diameter rata-rata yang menurun seiring lamanya waktu sintesis dengan nilai diameter parameter waktu 1, 2, 3, dan 4 jam secara berturut-turut 22.591, 15.966, 10.973, dan 6.221 μm dan terdapat kecenderungan untuk menempel antar satu sama lain seiring dengan peningkatan waktu agitasi. Hasil analisis FTIR menunjukkan karakteristik gugus fungsi ester alifatik trigliserida (aliphatic triglycerids esters), ikatan rangkap terkonjugasi yaitu trans, trans dan cis, dan transdikonfigurasi, dan gugus sulfone serta mengkonfirmasi proses enkapsulasi. Hasil analisis SEM menunjukkan kondisi permukaan dari mikrokapsul yang terbentuk yaitu adanya partikel yang menonjol pada parameter 1 dan 2 jam, permukaan yang berpori pada waktu 3 jam, dan permukaan yang halus pada waktu 4 jam. Hasil TGA mengkonfirmasi nilai kapasitas enkapsulasi sebesarviii 51,60 % dan menunjukkan ketahanan termal hingga temperatur 340oC yang mengkonfirmasi kelayakan mikrokapsul untuk digunakan dalam pembuatan self-healing coating.
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Self-healing coating is the ability of a coating layer to heal
itself from a material scratch. The purpose of this study was to
analyze the effect of variations in agitation time on the
microcapsule synthesis process on morphology and thermal
properties for self-healing coating applications. The method used
was the solvent evaporation method with variations in agitation
time of 1, 2, 3, and 4 hours. Tung oil was chosen because of its
properties as a healing agent and polysulfone was chosen because
of its good thermal resistance. Optical microscope observations
show that the average diameter decreases with the increasing of
synthesis time with the diameter values of the time parameters of
1, 2, 3, and 4 hours respectively 22,591, 15,966, 10,973, and 6,221
μm and also there is a tendency to stick to one another with
increasing agitation time. The results of FTIR analysis show the
characteristics of the aliphatic triglyceride esters, the trans, trans
and cis conjugated double bonds, and the trans-configured, and
the sulfone groups and also confirm the encapsulation process. The
SEM analysis results showed that the surface conditions of the
microcapsules formed were the presence of prominent particles in
the parameters 1 and 2 hours, a porous surface at 3 hours, and a
smooth surface at 4 hours. The TGA results confirmed the value of
the encapsulation capacity of 51.60% and showed thermal
resistance up to a temperature of 340oC which confirmed the
feasibility of the microcapsules for use in making self-healing
coatings.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Polysulfone, Minyak Tung, Mikroenkapsulasi,Solvent Evaporation Method, Self-healing material, Polysulfone, Tung Oil, Microencapsulation, Solvent Evaporation Method, Self-healing material Polysulfone, Tung Oil, Microencapsulation, Solvent Evaporation Method, Self-healing material |
| Subjects: | Q Science > QD Chemistry > QD79.T38 Thermal analysis T Technology > TA Engineering (General). Civil engineering (General) > TA491 Metal coating. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Adella Fahdarina Piliang |
| Date Deposited: | 22 Feb 2021 05:45 |
| Last Modified: | 04 Jul 2024 06:03 |
| URI: | http://repository.its.ac.id/id/eprint/82697 |
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