Tailoring Epoxy / Glass Composites: Characterization of Interphase Properties

这项建议回顾和总结了我们最近在纳米结构多功能中间相方面所做的努力，表征了它们的结构和性质。在第一个资助期取得进展的基础上，预期研究的主要目标是进一步发展关于应用最广泛的玻璃纤维增强环氧体系相间现象的基础知识。这项工作主要包括三个部分：i)结构：与纳米强化、固体取向/分布/改性有关的界面形成；ii)性质：机械和物理性能的多尺度评估，重点是利用第一个资助期开发的界面自诊断能力；iii)表征：绘制界面的基本物理参数和化学成分。采用各种热/弹性/电学作图技术(纳米TA、力体积纳米压痕、电场力显微镜)收集相关数据。总之，最广泛使用的增强玻璃纤维和环氧树脂之间的纳米尺度、灵敏的电子检测和灵活的界面结构控制为具有智能传感能力的新一代复合材料带来了巨大的希望。

This proposal reviews and summarizes our recent efforts in nanostructuring multifunctional inter-phases, characterizing their structure and properties. Based on the progress made in the first funding period, the main goal of the intended research is to further develop fundamental knowledge on inter-phase phenomena of the most widely utilized glass fibre reinforced epoxy system. The work compri-ses mainly three parts: i) Structure: Interphase formation associated with nanoreinforcements, solid orientation/distribution/modification; ii) Properties: multiscale evaluation of both mechanical and physi-cal properties, with an emphasis on using interphase self-diagnosing capabilities as developed in the first funding period; iii) Characterization: mapping fundamental physical parameters and chemical composition of interphase. Various thermal/elasticity/electricity mapping techniques (nano-TA, force volume nanoindentation, electric force microscopy) are employed for collecting relevant data. In conclusion, the nanoscale dimensions, sensitive electronic detection, and flexible structure control of interphase between most widely used reinforcement-glass fibre and epoxy hold immense promise for new generations of composites with intelligent sensing capability.