摘要
研究了PBO纤维与T700碳纤维混杂复合材料的界面性能和压力容器性能。采用层间剪切强度测试和吸水率测试研究了不同混杂比对混杂复合材料界面粘接性能和吸水性能的影响。研制了PBO纤维与T700碳纤维混杂复合材料Ф150 mm压力容器,对容器的水压爆破性能和轴压承载性能进行了测试。结果表明:混杂复合材料的层间剪切强度随着混杂比增大逐渐升高,当T700碳纤维含量较低时,混杂复合材料界面粘接性能提高并不明显;混杂复合材料的吸水率介于PBO纤维和T700碳纤维复合材料之间,近似符合"混合定律",界面数对混杂复合材料吸水性影响较大;混杂复合材料Ф150 mm容器的PV/W随着混杂比增大逐渐降低,混杂工艺能够使PBO纤维复合材料容器的轴压承载性能提高31%。
The interfacial properties and pressure vessel performance of PBO fiber and T700 carbon fiber hybrid composites were studied in this paper. The effects of hybrid ratio on interfacial adhesion properties and water absorp- tion of hybrid composites were investigated by interlaminar shear strength （ILSS） and water absorption measurements. Standard q^lS0 mm pressure vessels were prepared by PBO fiber and T700 carbon fiber hybrid composites. The water explosion and axial bearing tests of ~150 mm pressure vessels were conducted. The results indicate that the ILSS of hybrid composites went up with hybrid ratio increasing, the interfacial adhesion properties of hybrid composites saw little improvement as TT00 carbon fiber content was lower. The water absorption values of hybrid composites were be- tween PBO and T700 fiber reinforced composites, which matches the mixture law nearly, and the number of interface had remarkable effect on water absorption of hybrid composites. The PV/W of φ150 mm pressure vessels prepared by hybrid composites decreased as hybrid ratio increasing. The axial bearing property of PBO fiber reinforced composites was improved by 31% with hybrid technology.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2015年第2期29-32,共4页
Aerospace Materials & Technology
关键词
PBO纤维
碳纤维
混杂复合材料
界面性能
压力容器
PBO fiber, Carbon fiber, Hybrid composites, Interracial properties, Pressure vessel
