摘要
研究了压力法组合溶剂法一步降解环氧碳纤维复合材料的工艺,测试了降解产物成分与特性并探索了回收碳纤维再利用的可能性。利用红外光谱分析确定了其断键形式主要为醚键断裂,利用气相色谱-质谱联用分析确定了降解产物主要是丙烷和2-戊酮。利用扫描电子显微镜(SEM)表征了纤维表面树脂粘附少,再制备复合材料的界面结合良好。纤维力学性能测试确定了所回收的碳纤维仍具有良好的力学性能。复合材料力学性能测试确定了其性能损失小。研究表明,使用该方法降解效率高,回收纤维单丝拉伸强度保留率高,具有很好的运用前景。
This article studies the composites degradation process by the one-step pressure method consisting of solvent method, tests composition and characteristic of the degradation product and explores the possibility of using recovery carbon fiber. By using the infrared analysis to determine the bond breaking mainly in the form of cleavage of ether bond. Analysis of degradation products were identified, which is mainly associated with propane and 2-ke- tone by GC-MS. The SEM micro-structure and fracture morphology of material fracture show that the resin adhere to carbon fiber is almost removed and there is a good interface bonding between the fiber and resin. Fiber mechanical properties testing identified recovery carbon fiber also has good mechanical property. The test of mechanical properties of composite materials indicates that the performance loss is little. Research shows that： the method has high degra- dation efficiency and monofilament tensile a very good application prospect. strength of recovery fiber retention rate is high, and the recovery fiber has
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2015年第10期78-82,共5页
Fiber Reinforced Plastics/Composites
关键词
环氧复合材料
压力法
降解
纤维
回收利用
epoxy resin composite materials
pressure method
degradation
fiber
recycling
