CURING CHARACTERISTICS OF LINEAR HEATING OF AN EPOXY RESIN
-
摘要: 为了深入了解复合材料固化过程的温度变化与微结构变化特征,设计了线热源加热的固化实验方法。采用SEM技术和3D温度采集系统考察了线加热条件下树脂体系的固化生长形态、微观结构的形成过程以及固化过程体系中的温度分布和变化规律。结果表明,线加热条件下形成的固化物表面微观形貌可以直观地反映均匀加热条件下树脂体系固化过程不同时刻体系微观形貌的形成历程。研究结果对理解复合材料热压成型过程中热传递方式、热应力与微观结构的形成机理具有一定的参考价值。Abstract: The linear heating apparatus formed by resistance wire was designed to investigate the formation of the microstructures of the cured epoxy resin. The network of the gel states was analyzed by means of SEM. And 3D Temperature Testing Instrument was employed to survey the temperature distributions in the curing epoxy resin system heated by resistance wire. The results show that the microstructures of the cured resin, heated by linear resistance wire, exhibit the formation of the gel state of the cured resin heated homogeneously. It indicates that the temperatures of the curing resin are greatly affected by the content of the curing agent. These are of great value in understanding the effects of microstructure development and temperature distribution on the composites manufacturing process.
-
Keywords:
- composites /
- epoxy resins /
- curing /
- microstructure /
- temperature
-
-
计量
- 文章访问数:
- HTML全文浏览量:
- PDF下载量:
下载:
