| タイトル | Evaluation of RTM370 Polyimide Composites by Resin Film Infusion (RFI) |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140010361 |
| 著者（英） | Chuang, Kathy C.; Tsotsis, Thomas K.; Yip, Thomas A.; Kollmansberger, Ronald B. |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2014-06-02 |
| 言語 | eng |
| 内容記述 | RTM370 imide oligomer based on 2,3,3',4'-biphenyl dianhydride (a-BPDA), 3,4'-oxydianiline (3,4'-ODA) and terminated with the 4-phenylethynylphthalic (PEPA) endcap has been shown to exhibit a low melt viscosity (10-30 poise) at 280 C with a pot-life of 1-2 h and a high cured glass-transition temperature (Tg) of 370 C. RTM370 resin has been successfully infused into fiberglass-stitched T650-35 carbon-fabric preforms (ranged from 3- to 6-mm thick) by resin film infusion (RFI). The resulting composite panels were inspected by ultrasonic C-scan and by photomicrographs before and after post-curing as a quality control. Mechanical tests such as unnotched compression (UNC), open-hole compression (OHC), and short-beam shear strength (SBS) at ambient and elevated temperatures were performed before and after isothermal aging at 288 C for 1000 h to assess high-temperature performance. Thermal cycling of RTM370 stitched composites was also conducted from -54 C to 288 C for up to 1600 cycles to evaluate the microcrack resistance of RTM370 polyimide composites fabricated by RFI. |
| NASA分類 | Composite Materials |
| レポートNO | GRC-E-DAA-TN11847 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/63388 |
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