Izzaturrahman, Syauqi (2026) Pengaruh Konsentrasi Hexamethyldisilazane dan Mikropartikel Berbasis Silika pada Multilayer Coating terhadap Sifat Hidrofobik dan Transmitansi Optik Panel Surya. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini berhasil mensintesis dan menganalisa kinerja sistem multilayer coating tiga lapis hidrofobik berbasis silika yang dimofisikasi dengan hexamethyldisilazane (HMDS). Rekayasa lapisan ini dilakukan melalui variasi konsentrasi HMDS pada layer 2 serta konsentrasi deposisi mikropartikel silika termodifikasi HMDS pada layer 3. Karakterisasi FTIR mengonfirmasi keberhasilan proses silanisasi pada konsentrasi optimum HMDS 8%, ditandai oleh munculnya puncak tajam gugus hidrofobik Si-CH3 (1255 cm⁻¹) dan -Si(CH3)3 (842 cm⁻¹) karena substitusi gugus silanol polar. Analisis SEM dan AFM menunjukkan terbentuknya topografi permukaan dengan hierarchical nano-roughness yang secara ideal menjebak kantong udara dalam fasa Cassie-Baxter. Performa superhidrofobik tertinggi dicapai pada konsentrasi HMDS 8% dan konsentrasi mikropartikel 1% dengan nilai Water Contact Angle (WCA) sebesar 156,91°, serta menunjukkan stabilitas yang baik setelah pengujian mechanical and chemical stability dengan mempertahankan nilai WCA pada rentang hidrofobik. Dari aspek tingkat kejernihan untuk meneruskan cahaya, multilayer coating optimum mampu mempertahankan transmitansi spektrum tampak dari 98,20% (kaca polos) menjadi 98,78% (konsentrasi HMDS 8% pada layer 2) dan mempertahankan nilai sebesar 98,66% (konsentrasi mikropartikel layer 3 sebesar 1%). Validasi akhir menggunakan solar cell simulator membuktikan bahwa aplikasi multilayer coating ini meningkatkan efisiensi konversi energi panel surya secara signifikan dari 1,48% (tanpa coating) menjadi 1,76%, yang merepresentasikan peningkatan efisiensi relatif sebesar 18,9%. Secara keseluruhan, sistem multilayer coating ini terbukti efektif meningkatkan penetrasi cahaya matahari sekaligus memberikan efek self-cleaning jangka panjang pada kaca pelindung panel surya.
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This study successfully synthesized and analyzed the performance of a hydrophobic three-layer multilayer coating system based on silica modified with hexamethyldisilazane (HMDS). The engineering of this coating was carried out by varying the concentration of HMDS in layer 2 and the concentration of HMDS-modified silica microparticle deposition in layer 3. FTIR characterization confirmed the success of the silanization process at an optimum concentration of 8% HMDS, characterized by the appearance of sharp peaks of hydrophobic groups Si-CH3 (1255 cm⁻¹) and -Si(CH3)3 (842 cm⁻¹) due to the substitution of polar silanol groups. SEM and AFM analysis showed the formation of a surface topography with hierarchical nano-roughness that ideally traps air pockets in the Cassie-Baxter phase. The highest superhydrophobic performance was achieved at 8% HMDS concentration and 1% microparticle concentration with a Water Contact Angle (WCA) value of 156.91°, and showed good stability after mechanical and chemical stability testing by maintaining the WCA value in the hydrophobic range. From the aspect of the level of clarity to transmit light, the optimum multilayer coating was able to maintain the visible spectrum transmittance from 98.20% (plain glass) to 98.78% (8% HMDS concentration on layer 2) and maintain the value of 98.66% (layer 3 microparticle concentration of 1%). Final validation using a solar cell simulator proved that the application of this multilayer coating significantly increased the energy conversion efficiency of solar panels from 1.48% (without coating) to 1.76%, which represents a relative efficiency increase of 18.9%. Overall, this multilayer coating system was proven to be effective in increasing sunlight penetration while providing a long-term self-cleaning effect on the protective glass of solar panels.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Multilayer Coating, Panel Surya, Self-Cleaning, Superhidrofobik, Multilayer Coating, Solar Panel, Self-Cleaning, Superhydrophobic |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9.C57 Coatings T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2960 Dye-sensitized solar cells. Solar batteries. Solar cells |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Syauqi Izzaturrahman |
| Date Deposited: | 21 Jul 2026 01:16 |
| Last Modified: | 21 Jul 2026 01:22 |
| URI: | http://repository.its.ac.id/id/eprint/135750 |
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