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SINTESIS LAPISAN HIDROFOBIK BERBASIS TEOS PADA KACA PREPARAT DENGAN MENGGUNAKAN METODE SOL-GEL ASRIFAH
Inovasi Fisika Indonesia Vol 6 No 1 (2017)
Publisher : Jurusan Fisika FMIPA Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.064 KB) | DOI: 10.26740/ifi.v6n1.p%p

Abstract

Abstrak Sintesis silka TMCS, sol-gel, silika aerogel, Sintesis silika aerogel berbasis TEOS (Tetraethylorthosilicate) dengan metode sol-gel dengan menambahkan larutan modifikasi permukaan menggunakan n-hexana dan TMCS (Tetraethylorthosilicate) dengan tujuan untuk menjadikan sifat hirofobik. Variabel kontrol yang digunakan dalam penelitian ini yaitu konsentrasi TEOS dan NH3. Sedangkan variabel yang dimanipulasi molaritas ethanol dan volume TMCS untuk modifikasi permukaan. Dan variabel respon diperoleh dari hasil uji karakterisasi. Dari hasil uji tetes diperoleh sudut kontak dari ethanol 1 M dan 2 M dengan penambahan TMCS sebesar 112,5⁰ dan 110,1⁰. Hasil karakterisasi FTIR pada sampel dengan ethanol 1 M pada perendaman TMCS sebanyak 15 mL dan 25 mL muncul panjang gelombang sebesar 848,5 cm-1 dan 964,6 cm-1 ini terbentuk gugus fungsi Si-C. Hal ini menunjukkan bahwa pada daerah ini mengindikasikan bahwa gugus metil telah berikatan dengan struktur silika. Karakterisasi SEM menunjukkan bahwa dengan melalui analisis perhitungan sampel dimana sampel yang menggunakan ethanol 1 M dan perendaman TMCS sebanyak 25 mL diperoleh diameter rata-rata sebesar 2,52971 nm, sedangkan sampel yang menggunakan ethanol 2 M dan perendaman TMCS sebanyak 25 mL berukuran sebesar 0,230225 nm. Kata kunci : TEOS, TMCS, sol-gel, silika aerogel. Abstract Synthesis of silica aerogel based on TEOS (Tetraethylorthosilicate) with the sol-gel method by adding a solution of surface modification using n-hexane and TMCS (Tetraethylorthosilicate) with the aim to make hirofobik properties. The control variables used in this study is the concentration of TEOS and NH3. While the manipulated variables Ethanol molarity and volume TMCS for surface modification. And the response variables derived from characterization test results. From the test results obtained by the contact angle drops of ethanol 1 M and 2 M with the addition of TMCS 112,5⁰ and 110,1⁰. FTIR characterization results on samples with 1 M in ethanol immersion TMCS as much as 15 mL and 25 mL appear wavelength of 848.5 cm-1 and 964.6 cm-1 is formed of functional groups Si-C. It shows that in this area indicates that the methyl group has been bonded to the silica structure. SEM characterization shows that through the analysis of samples where the sample calculation using ethanol 1 M and soaking TMCS as much as 25 mL gained an average diameter of 2.52971 nm, while the samples using ethanol 2 M and soaking TMCS as much as 25 mL size of 0,230225 nm. Keyword : TEOS, TMCS, sol-gel, silica aerogel,
Bahasa Inggris Susanto, Niken Hapsari Arimurti; Panunggul, Victor Bintang; Sitanini, Ayu; Putranto, Afif Hendri; Asrifah; Afifah, Hana
Perwira Journal of Science & Engineering Vol 6 No 1 (2026)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/ft3d0m44

Abstract

Mocaf crackers are a processed product derived primarily from Mocaf flour. Mocaf flour is produced from cassava through a fermentation process involving microorganisms such as Rhizopus oryzae and yeast (Saccharomyces cerevisiae). The Women Farmers Group (Kelompok Wanita Tani, KWT) ERQU oversees the entire production chain of Mocaf crackers, ranging from raw material procurement to product marketing. This study aims to analyze the application of the marketing mix on Mocaf cracker products produced by KWT ERQU in Tumanggal Village, Pengadegan Subdistrict, Purbalingga Regency. The research was conducted in August 2024, employing a case study approach. Descriptive analysis was utilized to address the research objectives, based on the 8Ps marketing mix framework, which encompasses product, price, place, promotion, people, process, programs, and performance. The findings of the study reveal that the implementation of the 8P marketing mix in relation to Mocaf crackers produced by KWT ERQU requires further enhancement. In particular, improvements are needed in strengthening the product’s brand image, diversifying distribution channels, expanding promotional efforts—especially through digital media—establishing consistent marketing programs, conducting performance evaluations, and providing comprehensive training and guidance to KWT ERQU members. Such training should focus on hygienic production processes, product diversification, digital marketing strategies, packaging design quality enhancement, and customer service improvement. KEY WORDS: Mocaf Cracker, Marketing Strategy, Marketing Mix, MSME
Co-Authors Ayu Sitanini Hana Afifah, Hana Panunggul, Victor Bintang Putranto, Afif Hendri Susanto, Niken Hapsari Arimurti