三维整体夹芯织物增强复合材料的研制

用玻璃纤维在普通二维织机上分别试制经向为V形、X形和蜂窝形3种典型三维整体夹芯织物,利用真空辅助成型工艺研制复合材料夹芯板。为使树脂能较好地渗入织物和纤维内部,对灌注用树脂胶液的组成、配制比例以及树脂黏度等进行了研究,并讨论了三维空芯结构织物中树脂胶液流动过程及气泡形成原因。该复合材料成型工艺能有效地排除在成型过程中产生于织物纤维束之间和纤维束内的气泡。研究结果表明所研制的板材保持了夹芯织物原有的孔形结构、形状与较好的力学性能。

Development of 3-D integrated and sandwiched fabric composites

The typical 3-D integrated and sandwiched fabrics including X,V and honeycomb types in warp wise are designed and manufactured with glass fibers on the common 2-D loom,and reinforced composites are made of the fabrics by means of the technology of vacuum assisted resin infusion.For better penetration of resin into the fiber and fabric,the components,ratio and viscosity of the resin liquid are studied.The resin liquid flowing in the 3-D sandwiched fabric and the cause of bubble forming are discussed.The manufacturing method used in this research can effectively exclude the air trapped in the voids between fibers or inside the fibers of the reinforced composites.The results show that the reinforced composites have retained the original structure,shape,and physical properties of the sandwiched fabrics.