芳纶纤维表面分析及其对双马来酰亚胺树脂复合材料界面性能的影响  

Effect of Surface Properties on Interfacial Properties of Aramid Fiber Reinforced Bismaleimide Resin Matrix Composites

作　　者：蒋诗才[1] 石峰晖[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2012年第9期54-57,共4页Journal of Materials Engineering

摘　　要：采用反气相色谱和扫描电子显微镜测试分析了芳纶纤维的表面性能,结果发现K1和K2两种芳纶纤维的表面均比较光滑,总表面能基本相当,但极性表面能和色散表面能分量存在较大差异。层间剪切强度测试表明K2/5405复合材料的界面强度高于K1/5405复合材料,断口形貌分别呈现出不同的基体破坏和界面破坏模式。利用Good-Girifalco相互作用参数分析纤维和树脂的表面能与复合材料界面性能的关系,结果发现复合材料中两相间的相互作用参数增大,匹配性提高,界面性能亦有所提高。The surface properties of aramid fibers were characterized by means of inverse gas chroma- tography （IGC）and SEM. The results show that the surface physical morphology of K1 and K2 ar- amid fibers is glossier, and the surface energies of the fibers are similar while different in the disper- sive and specific surface energy. Interlaminar shear strength （ILSS） was used to measure the interfa- cial binding strength of composites based on aramid fiber reinforced bismaleimide resin composite, The ILSS of K2/5405 composite is higher than that of K1/5405 composite and the impact failure mode is interfacial debonding and matrix broken respectively. Oood-Girifalco interaction parameter was proved as a key compatible parameter to analysis the effect of surface properties on interfaeial properties of ar- amid fiber reinforced composite. The interracial binding strength could be improved with the increase of interaction parameter between fiber and resin.

关 键 词：芳纶纤维 表面特性 复合材料 界面 

分 类 号：TB332[一般工业技术—材料科学与工程]