CAJ | 학술논문

选用两种耐高温多官能团环氧树脂TDE-85和AG-80为基体,T300碳纤维为增强体制备了复合材料单向板,纤维体积含量均为60%.实验测得TDE-85树脂基体复合材料单向板的弯曲模量为74.26GPa,弯曲强度为1061.4MPa,层间剪切强度(ILSS)为54.05MPa;AG-80树脂基体复合材料单向板弯曲模量为55.73GPa,弯曲强度为840.52MPa,层间剪切强度(ILSS)为44.84MPa.前者的弯曲强度、弯曲模量与剪切强度也分别高出后者26.3%、33.2%与20.5%.实验对弯曲试样断口微观形貌的受压部分和受拉部分进行了SEM和高倍数码显微镜观察.结果显示,AG-80树脂基与碳纤维的界面结合情况较差,纤维成束被拔出,纤维表面几乎没有树脂.TDE-85树脂基与碳纤维界面结合情况较好,纤维与树脂结合比较紧密,断面较为平整,只有少量纤维拔出,表面粘附大量树脂.
선용량충내고온다관능단배양수지TDE-85화AG-80위기체,T300탄섬유위증강체제비료복합재료단향판,섬유체적함량균위60%.실험측득TDE-85수지기체복합재료단향판적만곡모량위74.26GPa,만곡강도위1061.4MPa,층간전절강도(ILSS)위54.05MPa;AG-80수지기체복합재료단향판만곡모량위55.73GPa,만곡강도위840.52MPa,층간전절강도(ILSS)위44.84MPa.전자적만곡강도、만곡모량여전절강도야분별고출후자26.3%、33.2%여20.5%.실험대만곡시양단구미관형모적수압부분화수랍부분진행료SEM화고배수마현미경관찰.결과현시,AG-80수지기여탄섬유적계면결합정황교차,섬유성속피발출,섬유표면궤호몰유수지.TDE-85수지기여탄섬유계면결합정황교호,섬유여수지결합비교긴밀,단면교위평정,지유소량섬유발출,표면점부대량수지.
Two kinds of composite board with multi-functional group of epoxy resin TDE-85 and AG-80,reinforced by T300 carbon fiber.The volume percentage of carbon fiber is 60%.The experimental results show that the bending modulus of TDE-85 composite board reaches 74.26GPa,the bending strength reaches 1061.4MPa,and the interlaminar shear strength(ILSS)reaches 54.05MPa.At the same time,the bending modulus of AG-80 composite board reaches 55.73GPa,the bending strength reaches 840.52MPa,and the interlaminar shear strength(ILSS)reaches 44.84MPa.The cross-sections and interfaces of unidirectional carbon fiber reinforced composites with different resin matrices are studied by metalloscope,electron probe microscope and scanning electron microscope (SEM).The results indicate that for unidirectional carbon fiber reinforced composites with different resin matrices which were prepared in the same condition,so many carbon fibers were pulled out from the AG-80 resin matrix,and nearly no matrix paste on the fiber.On the contrary,there were small number of fiber pulled out from TDE-85 resin matrix,fiber and resin combined with relatively close.