Ognibene Giulia, Mannino Salvatore, Fragalà Maria Elena, Cicala Gianluca
Department of Civil Engineering and Architecture, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
Italian Consortium for Materials Science and Technology Reseacch Unit Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
Materials (Basel). 2018 Mar 9;11(3):405. doi: 10.3390/ma11030405.
Electrospun veils from copolyethersulfones (coPES) were prepared as soluble interlaminar veils for carbon fiber/epoxy composites. Neat, resin samples were impregnated into coPES veils with unmodified resin, while dry carbon fabrics were covered with electrospun veils and then infused with the unmodified epoxy resin to prepare reinforced laminates. The thermoplastic content varied from 10 wt% to 20 wt%. TGAP epoxy monomer showed improved and fast dissolution for all the temperatures tested. The unreinforced samples were cured first at 180 °C for 2 h and then were post-cured at 220 °C for 3 h. These sample showed a high dependence on the curing cycle. Carbon reinforced samples showed significant differences compared to the neat resin samples in terms of both viscoelastic and morphological properties.
制备了由共聚醚砜（coPES）制成的静电纺丝面纱，用作碳纤维/环氧树脂复合材料的可溶性层间面纱。将纯树脂样品用未改性树脂浸渍到coPES面纱中，而干燥的碳纤维织物先用静电纺丝面纱覆盖，然后用未改性环氧树脂灌注以制备增强层压板。热塑性含量从10 wt% 到20 wt% 不等。TGAP环氧单体在所有测试温度下均表现出改善且快速的溶解性。未增强的样品首先在180 °C 下固化2小时，然后在220 °C 下后固化3小时。这些样品对固化周期高度依赖。与纯树脂样品相比，碳增强样品在粘弹性和形态性能方面均表现出显著差异。
