Studi pengaruh mampu serap air terhadap sifat mekanis dan degradasi kimia pada komposit epoksi e glass di lingkungan nacl 3 5 melalui uji celup = The effect of water absorption on the mechanical properties and chemical degradation of epoxy e glass composite in nacl 3 5 environment through immersion test
(Fakultas Teknik Universitas Indonesia, 2014)
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| ["Material FRP (Fiber Reinforced Polymer) diaplikasikan sebagai pipa pada""offshore platform dan shipboard piping. Fluida yang mengalir dalam pipa FRP bersifat korosif dengan suhu operasi 75˚C dan 95˚C. Material FRP mudah menyerap molekul air yang mengakibatkan penurunan sifat mekanis dan degradasi kimia. Komposit epoksi/E-glass pada penelitian ini diberikan perlakuan melalui uji celup dalam larutan NaCl 3,5% pada suhu 75˚C dan 95˚C. Setelah proses perendaman, komposit epoksi/E-glass dilakukan pengujian tarik, SEM dan FTIR. Hasil pengujian tarik menunjukkan tidak ada perubahan sifat mekanis pada epoksi/E-glass setelah proses perendaman. Pengujian SEM menunjukkan adanya microvoid berukuran ±3µm pada epoksi/E-glass yang diperoleh dari proses manufaktur. Seiring dengan peningkatan suhu, terdapat microvoid baru berukuran""±2µm yang disebabkan oleh fibre entanglement pada 75˚C dan rongga-rongga berukuran ±100µm di dekat serat gelas yang disebabkan oleh pembelahan rantai molekul pada matriks epoksi. Microvoid dan rongga tersebut menyebabkan meningkatnya mampu serap air epoksi/E-glass namun ternyata tidak mempengaruhi sifat mekanis. Perubahan warna larutan NaCl 3,5% dan hasil pengujian FTIR membuktikan adanya degradasi kimia pada epoksi/E-glass setelah""proses perendaman pada suhu 75˚C dan 95˚C.", "Fiber Reinforced Polymer was applied as a pipe on offshore platforms and""shipboard piping. The fluid which flows in that FRP pipe is corrosive with an operating temperature 75˚C and 95˚C. FRP material readily absorbs water molecules resulting in a decrease in mechanical properties and chemical degradation. Epoxy/E-glass composite in this study are given treatment by immersion test in 3.5% NaCl solution at temperature 75˚C and 95˚C. After immersion, epoxy/E-glass composite is tested by tensile testing, SEM and FTIR. The results of tensile testing showed there is no change in the mechanical properties of epoxy/E-glass after immersion. Photo SEM showed there is microvoid with size ± 3μm in epoxy/E-glass that obtained from manufacturing process. As temperature increases, there is new microvoid with size ± 2μm caused by fibre entanglement at 75˚C and many cavities that located near fibre glass with size ± 100μm caused by the termination of molecule chain in an epoxy matrix. The microvoid and the cavity is able to cause an increase in water absorption of epoxy/E-glass, but did not affect the mechanical properties. Color change of 3.5% NaCl solution and FTIR testing results prove there is chemical degradation of""epoxy/E-glass composite after immersion at temperature 75˚C and 95˚C."] |
 S58438-lutfia aswin amvani .pdf :: Unduh
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| No. Panggil : | S58438 |
| Penerbitan : | [Place of publication not identified]: Fakultas Teknik Universitas Indonesia, 2014 |
| Program Studi : |
| Bahasa : | ind |
| Sumber Pengatalogan : | |
| Tipe Konten : | |
| Tipe Media : | |
| Tipe Carrier : | |
| Deskripsi Fisik : | xii, 54 hlm. : ill. ; 29 cm. + lamp. |
| Naskah Ringkas : | |
| Lembaga Pemilik : | Universitas Indonesia |
| Lokasi : | Perpustakaan UI, Lantai 3 |
| No. Panggil | No. Barkod | Ketersediaan |
|---|---|---|
| S58438 | TERSEDIA |
| Ulasan: |
| Tidak ada ulasan pada koleksi ini: 20402377 |
