国产ZT7H碳纤维表面状态及其复合材料界面性能

目前我国在高性能碳纤维研发生产方面已取得了突破性的进展.本文选用不同批次和牌号的国产ZT7H碳纤维,对其进行去浆和上浆处理,并制备碳纤维增强环氧树脂基复合材料,探究国产H1型上浆剂对ZT7H碳纤维表面形貌和微观界面性能的影响及不同牌号碳纤维复合材料界面性能的差异.研究表明,H1上浆剂增加了碳纤维表面粗糙度和极性组分含量...

Surface state of domestic ZT7H carbon fiber and interface property of composites

At present, China has made great breakthrough in the development and production of high-performance carbon fiber. In this paper, different batches and grades of domestic ZT7H carbon fibers were selected and processed for desizing and sizing, and then carbon fiber reinforced epoxy resin composites were prepared. The effect of domestic H1 sizing agent on the surface morphology and micro-interface properties of ZT7H carbon fibers was explored, as well as the differences in interface performance of composites made from different grades of carbon fibers. Studies have shown that H1 sizing agent increases the surface roughness and polar component content of carbon fibers, enhancing the micro-interface mechanical properties of the composite before and after hygrothermal treat. At the same time, the weaving method of carbon fiber fabric has a great influence on the static mechanical properties and interface properties of its composites. Experiments have proved that the performance of domestic ZT7H carbon fiber has exceeded Toray T700 carbon fiber, but its product performance stability still needs to be improved.