Effect of nanocarbon on interfacial properties of carbon fiber/epoxy composites based on microwave plasma enhanced chemical vapor deposition
-
摘要: 为了提高复合材料的界面性能，采用微波等离子体（MPECVD）方法，通过控制工艺参数，在碳纤维（CF）表面生长结构形貌各异的纳米碳，将其引入CF/环氧树脂（EP）复合材料界面微区。采用FESEM研究了不同MPECVD工艺参数对沉积纳米碳结构形貌的影响，采用单纤维破碎实验研究了纳米碳形貌对CF/EP复合材料的界面性能影响，探讨了纳米碳-CF/EP复合材料界面微观结构与其界面性能之间的关系。结果表明：随着MPECVD沉积功率的变化，沉积的纳米碳结构形貌变化较大。当沉积功率为700 W时，制备得到的多尺度纳米碳-CF/EP复合材料界面性能最高，界面剪切强度（IFSS）达到112.38 MPa，提高了118.85%。Abstract: In order to improve the interface properties of composites, nanocarbons with different morphologies were deposited onto the surface of carbon fiber (CF) by controlling the process parameters using microwave plasma enhanced chemical vapor deposition (MPECVD) method. And then the multi-scale reinforcement was introduced into the interface layer of the CF/epoxy (EP) composites. Effects of different MPECVD technological parameters on the structural morphology of nanocarbon were researched by FESEM. The morphologies of nanocarbon on the interfacial shear strength (IFSS) were also studied by single fiber fragmentation test. And then, the relationship between interfacial properties and the micro-structure of interface region of nanocarbon-CF/EP was discussed. The results show that the morphologies of nanocarbon are changed significantly with the increase in deposition power. When the deposited power reaches 700 W, IFSS of nanocarbon-CF/EP composite increases by 118.85%, reaching 112.38 MPa.
-
-
计量
- 文章访问数: 926
- HTML全文浏览量: 97
- PDF下载量: 329
下载:
