采用纳米SiO2改性环氧树脂乳液上浆剂和未改性乳液上浆剂对聚丙烯腈(PAN)基炭纤维进行表面上浆.通过静置沉淀法和光学显微镜评价了两种乳液的稳定性.利用扫描电子显微镜(SEM)、X射线能谱仪(EDS)、原子力显微镜(AFM)和动态接触角测试仪(DCAA)研究了未上浆、未改性和改性上浆炭纤维的表面性能,并用单纤维碎裂法探讨了上浆剂对炭纤维与环氧树脂界面黏结的影响.结果表明:未改性和经纳米SiO2改性的两种乳液粒径较小,稳定性较好,而前者优于后者.上浆后,炭纤维表面的粗糙度和表面能都增大,而且最大值出现在改性乳液上浆炭纤维的表面.改性乳液上浆单纤维复合材料拥有最大的界面剪切强度(IFSS),比未改性上浆的高出27.2%;改性上浆炭纤维与基体的调和平均黏结功(Wa(h))和几何平均黏结功(Wa(g))也分别高出未改性上浆的12.7%和11.7%.
参考文献
| [1] | 贺福,王茂章.碳纤维及其复合材料[M].北京:科学出版社,1995:175-226. |
| [2] | 立早.炭纤维[J].新型炭材料,1998,13(2):79.Li Zao.Carbon fiber[J].New Carbon Materials,1998,13(2):79. |
| [3] | 稻垣道夫.炭材料中的组织[J].新型炭材料,1999,14(2):1-13.Inagaki M.Textures in carbon materials[J].New Carbon Materials,1999,14(2):1-13. |
| [4] | 王成忠,于运花,杨小平,等.碳纤维/乙烯基酯树脂拉挤复合材料界面性能研究[J].复合材料学报,2003,20(5):68-72.Wang Chengzhong,Yu Yunhua,Yang Xiaoping,et al.Study on the interfacial properties of pultruded carbon fiber/vinyl ester resin composites[J].Acta Materiae Compositae Sinica,2003,20(5):68-72. |
| [5] | 张德庆,胡玉洁,魏月贞.碳纤维(CF)表面接枝对聚酰亚胺(PMR-15)基复合材料界面性能的影响[J].复合材料学报,2001,18(1):50-54.Zhang Deqing,Hu Yujie,Wei Yuezhen.Influence of CF surface grafting on the interface property of CF/PI (PMR-15)[J].Acta Materiae Compositae Sinica,2001,18(1):50-54. |
| [6] | 杨永岗,贺福,王茂章,等.用SEM研究表面处理对炭纤维增强复合材料剪切断裂的影响[J].新型炭材料,1999,14(1):32-36.Yang Yonggang,He Fu,Wang Maozhang,et al.Study on effect of surface treatment on shear fracture of carbon fiber reinforced plastic composites by SEM[J].New Carbon Materials,1999,14(1):32-36. |
| [7] | 刘杰,郭云霞,梁杰英.碳纤维电化学氧化表面处理效果的动态力学热分析研究[J].复合材料学报,2004,21(4):40-44.Liu Jie,Guo Yunxia,Liang Jieying.DMTA study on electrochemical oxidation effect of carbon fiber surface[J].Acta Materiae Compositae Sinica,2004,21(4):40-44. |
| [8] | 郭云霞,刘杰,梁杰英.电化学改性对PAN基碳纤维表面状态的影响[J].复合材料学报,2005,22(3):49-54.Guo Yunxia,Liu Jie,Liang Jieying.Effect of electrochemical modification on the surface state of PAN-based carbon fibers[J].Acta Materiae Compositae Sinica,2005,22(3):49-54. |
| [9] | 刘鸿鹏,吕春祥,李永红,等.电化学表面处理PAN基炭纤维的表面性能研究[J].新型炭材料,2005,20(1):39-44.Liu Hongpeng,Lü Chunxiang,Li Yonghong,et al.Surface properties of electrochemically oxidized PAN-based carbon fibers[J].New Carbon Materials,2005,20(1):39-44. |
| [10] | Berg J,Jones F R.The role of sizing resins,coupling agents and their blends on the formation of the interphase in glass fiber composites[J].Composites Part A,1998,29(9/10):1261-1272. |
| [11] | Broyles N S,Chan R,Davis R M,et al.Sizing of carbon fibers with aqueous solutions of poly (vinyl pyrollidone)[J].Polymer,1998,39(12):2607-2613. |
| [12] | Cheng T H,Zhang J,Yumitori S,et al.Sizing resin structure and interphase formation in carbon fiber composites[J].Composites,1994,25(7):661-670. |
| [13] | Dilsiz N,Wightman J P.Surface analysis of unsized and sized carbon fibers[J].Carbon,1999,37(7):1105-1114. |
| [14] | Oyama H T,Wightman J P.Surface characterization of PVP-sized and oxygen plasma-treated carbon fibers[J].Surface and Interface Analysis,1998,26(1):39-55. |
| [15] | Meguid S A,Sun Y.On the tensile and shear strength of nano -reinforced composite interfaces[J].Materials & Design,2004,25(4):289-296. |
| [16] | Hussian M,Nakahira A,Niihara K.Mechanical property improvement of carbon fiber reinforced epoxy composites by Al2O3 filler dispersion[J].Materials Letters,1996,26 (3):185-191. |
| [17] | Zhang Z Z,Su F H,Wang K,et al.Study on the friction and wear properties of carbon fabric composites reinforced with micro-and nano-particles[J].Materials Science and Engineering A,2005,404(1/2):251-258. |
| [18] | 关蓉波,杨永岗,郑经堂,等.炭纤维乳液上浆剂[J].新型炭材料,2002,17(3):49-51.Guan Rongbo,Yang Yonggang,Zheng Jingtang,et al.Emulsion type sizing agent for carbon fiber[J].New Carbon Materials,2002,17(3):49-51. |
| [19] | Bismarck A,Richter D,Wuertz C,et al.Basic and acidic surface oxides on carbon fiber and their influence on the expected adhesion to polyamide[J].Colloids and Surfaces A,1999,159(2/3):341-350. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%