含碳纳米管的PEI纤维膜对环氧树脂力学性能的影响

基金项目: 国家自然科学基金(51073019, 51142004)

详细信息

Effect of PEI nano-fibrous membranes containing MWCNTs on the mechanical properties of epoxy resin

1.
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
2.
Aerospace Materials and Technology Research Institute, Beijing 100076, China

摘要

摘要: 采用高压静电纺丝法制备了含多壁碳纳米管(MWCNTs)的聚醚酰亚胺(PEI)纳米纤维取向薄膜, 用SEM和TEM观察其微观形貌。将PEI纳米纤维薄膜铺放于环氧树脂中, 通过实验测试其冲击和拉伸性能。结果表明, 含MWCNTs的PEI纳米纤维膜对环氧树脂具有良好的增韧效果。Ⅰ型层间断裂韧性(G_IC)测试表明, 用含质量分数3%活性碳纳米管(a-MWCNTs)的PEI纤维膜对T700碳纤维/环氧树脂复合材料进行层间增韧能够明显改善其层间断裂韧性。
- 静电纺丝 /
- 聚醚酰亚胺 /
- 多壁碳纳米管 /
- 环氧树脂 /
- 力学性能
Abstract: Polyetherimide (PEI) nano-fibrous membranes with multi-walled carbon nanotubes (MWCNTs)were prepared by electrospinning. The morphology of nano-fibrous membranes was studied by SEM and TEM. The impact and tensile properties of epoxy toughed by nano-fibrous membranes were investigated. The result shows that the toughness of epoxy is improved with the loading of PEI nano-fibrous membranes with MWCNTs. The result of G_IC test shows that interlaminar fracture toughness of the carbon fiber/epoxy composites toughed by PEI nano-fibrous membranes containing 3% mass fraction active MWCNTs (a-MWCNTs) can be highly enhanced.
- electrospinning /
- polyetherimide (PEI) /
- multi-walled carbon nanotubes (MWCNTs) /
- epoxy /
- mechanical property