大丝束碳纤维缠绕呼吸气瓶专用环氧树脂的固化机理及其固化性能的检测方法

目前，大丝束碳纤维缠绕呼吸气瓶越来越受欢迎，因碳纤维增强材料具有质轻、高强的优势，所以碳纤维复合材料制作的呼吸气瓶轻便耐用，完全可替代金属罐体的气瓶。但气瓶所处的内外环境往往比较复杂，对大丝束碳纤维缠绕呼吸气瓶的性能提出更高的要求，尤其是树脂基体的力学性能，韧性以及耐湿热性能决定着气瓶整体性能。因此，本文总结出目前常用的呼吸气瓶专用树脂的浸润以及固化机理，并进行理论分析，为国产大丝束碳纤维缠绕呼吸气瓶专用树脂的发展提供思路。

Curing Mechanism and Testing Method of Curing Performance of Epoxy Resin for Large Tow Carbon Fiber Wound Breathing Cylinder

At present, large tow carbon fiber wound breathing cylinders are becoming more and more popular. Due to the advantages of light weight and high strength of carbon fiber, the breathing cylinders make of carbon fiber composite materials are lightweight and durable, which support them can completely replace the cylinders make of metal tanks. However, the internal and external environment of the cylinder is often complicated, so higher requirements are put forward for the performance of the large tow carbon fiber wound breathing cylinder. Especially for the mechanical properties, toughness and heat and moisture resistance of the resin matrix which determines the overall performance of the cylinder. Therefore, this work summarizes and analyses the infiltration and curing mechanism of the current commonly used resins for breathing cylinders. Our study would help to provide ideas for the development of domestic resins for breathing cylinders wrapped with large tow carbon fibers.