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Fena Retyo Titani
Universitas Muhammadiyah Purwokerto
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering

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Pemanfaatan Serat Sabut Kelapa sebagai Material Penguat Pengganti Fiberglass pada Komposit Resin Polyester untuk Aplikasi Bahan Konstruksi Pesawat Terbang Fena Retyo Titani; Calaelma Logys Imalia; Haryanto Haryanto
Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Vol 19, No 1 (2018): Techno Volume 19 No 1 April 2018
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/techno.v19i1.2397

Abstract

Teknologi  modern  pada bahan konstruksi  pesawat  terbang  dituntut  untuk dapat menemukan bahan-bahan yang ringan namun memiliki daya tahan (kekuatan) yang besar. Bahan dengan karakter seperti ini sangat banyak gunanya, terutama dimanfaatkan sebagai bahan utama untuk badan pesawat terbang.  Saat ini, pesawat-pesawat  terbaru  menggunakan  bahan komposit sebagai  komponen  utama  badan pesawat.  Penelitian  pembuatan  komposit resin polyester berpenguat  serat sabut kelapa bertujuan  untuk mengetahui pengaruh penambahan serat sabut kelapa terhadap nilai energi impact yang diserap rata-rata dari setiap variasi fraksi berat serat 0%, 1%, 2%, 3%, 4% dengan matrik resin polyester 200 ml. Dari hasil pengujian impact metode charphy dengan standard ASTM E-23 didapatkan nilai energi yang diserap rata-rata  tertinggi  terjadi  pada  penambahan  fraksi berat serat 4% sebesar 338,6  Joule.  Hal  ini  menunjukkan  bahwa  semakin  banyak  penambahan fraksi berat serat sabut kelapa, maka energi yang diserap pada pengujian impact  akan  semakin  besar  karena  ikatan  antara  matriks  dan  serat  sabut kelapa  dapat menjadikan  material  komposit  menjadi  tahan akan benturan jika dikenai beban. Dan untuk hasil mode patahan pada fraksi berat serat 0% yang terlihat adalah mode patahan matrix rich. Sedangkan untuk fraksi berat serat 1-4% mode patahan yang terlihat adalah pullout dan overload.Kata Kunci: Komposit,Mode patahan, Resin polyester,Serat sabut kelapa,Uji impact
Development Of Polyethylene Oxide Film Hydrogels With The Addition Of Banana Sap For Wound Dressing Applications Fena Retyo Titani; Haryanto Haryanto
Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Vol 21, No 1 (2020): Techno Volume 21 No.1 April 2020
Publisher : Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/techno.v21i1.4894

Abstract

Hydrogels having been developed so far are those with polymer bases without any additives.  For the acceleration of wound healing, it can be developed hydrogels with the addition of banana sap (Musa Paradisiaca) as a drug that is expected to accelerate the wound healing process. The preparation of Banana PEO-PEGDMA-Hydrogel Banana was made using a new method of dissolving banana juice with PEO-PEGDMA before crosslinking. The formulations of banana sap concentration used ranged from 0% to 15% (volume) and they were irradiated with gamma rays. The characteristics measured include gel fraction, swelling ratio, velocity of water vapor transmission and mechanical properties. The chemical and morphological structures were analyzed using the Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). The acceleration of wound healing speed was analyzed by invivo test. The results showed that the value of gel fraction, swelling ratio and velocity of water transmission of PEO-PEGDMA-Banana Gum hydrogel increased at a concentration of 0-15%. Hydrogel tensile strength decreased with the addition of banana sap and conversely the percentage of elongation of hydrogel increased with it. PEO-PEGDMA hydrogel film with the addition of banana sap has been proven to accelerate the wound healing through the Invivo Test. This shows that hydrogels can be developed from PEO-PEGDMA- Banana Sap which can be used as wound dressing. 
Co-Authors Calaelma Logys Imalia Haryanto Haryanto Haryanto Haryanto