新型低成本玻璃纤维增强抗冲击复合材料研究

Studies on a New Low-Cost Glass Fiber Reinforced Shock-Resistant Composite

根据VARTM工艺要求,设计了含有活性稀释剂的新型环氧树脂体系,并以其粘度、氧指数、复合材料抗冲击性能和力学性能等为依据优化了其配方。研究了玻璃纤维表面处理对相应复合材料抗冲击性能和力学性能的影响,优化了表面处理剂的种类及配方。研究评价了一种新型3D机织织物VARTM工艺中树脂的流动性,发现采用该织物的复合材料抗冲击性能优良、损伤面积明显降低。在上述基础上确定了玻璃纤维增强低成本抗冲击复合材料体系,表征了该材料的基本理化性能、力学性能及环境适应性。

A new low-cost glass fiber reinforced shock-resistant composite was developed. A new low-viscosity epoxy resin system containing active diluent was designed and optimized based on its viscosity and oxygen index, as well as the mechanical properties and shock resistance performance of the corresponding composite. A complex coupling agent was also optimized by investigating its effect on mechanical properties and shock resistance performance of the corresponding composite. A new 3D fabric of glass fiber is determined as reinforcement of the shock-resistant composite to improve resin osmosis and alleviate shock damage. The fundamental properties, mechanical properties and environmental adaptability of the composite were characterized.