SGER: Novel Polymer Composites with Reinforced Interfaces

新型热固性层压复合材料与纳米纤维增强界面的处理在这个探索性研究（SGER）项目中得到了解决。界面的增强有望提高复合材料的抗断裂性能。将探讨在常规纤维增强层之间的薄界面层中分布小纤维的方法。用扫描声显微镜研究小纤维与树脂的浸渍和复合固结。层间断裂特性和微观机制将通过实验表征并与加工参数相关联。实验分析了纳米纤维与树脂的最佳结合方式。如果纳米纤维在复合材料中的分布和预期贡献能够实现，本工作的结果将为未来开发经济高效、微裂纹止裂、抗分层的混杂热固性复合材料奠定基础。

Processing of novel thermoset laminated composites with nanofiber reinforced interfaces is addressed in this Small Grant for Exploratory Research (SGER) project. Reinforcement of interfaces is expected to improve fracture resistance of composites. Methods of distribution of small fibers in a thin interfacial layer between the plies reinforced with conventional fibers will be explored. Small fiber impregnation with resin and composite consolidation will be studied by scanning acoustic microscopy. Interlaminar fracture properties and micromechanisms will be experimentally characterized and correlated with processing parameters. Optimum bonding of the nanofibers and resin will be experimentally analyzed. If the distribution and expected contribution of the nanofibers to the composite can be realized, the results of this work will form a fundamental basis for the future development of cost effective, microcrack arresting, delamination resistant, hybrid thermoset composites.