为改善碳纤维表面性能以及碳纤维/树脂复合材料的界面性能,对PAN基高模量碳纤维（HMCF）表面进行聚合物涂层处理。研究了不同潜伏性固化剂含量的聚合物涂层对HMCF表面以及碳纤维/树脂复合材料的界面性能的影响。IR分析表明,聚合物涂层与纤维或树脂基体发生了化学反应。扫描电镜和动态机械热分析的结果也说明,聚合物涂层能够提高HMCF/树脂复合材料的界面性能。潜伏性固化剂的含量是影响纤维/树脂复合材料的界面性能的关键因素。潜伏性固化剂含量为20%的聚合物涂层涂覆后的HMCF/树脂复合材料的层间剪切强度显著提高,达到了77.9MPa,较未涂覆聚合物涂层的HMCF/树脂复合材料提高了8.6%。
In order to improve the surface properties of carbon fibers and the interface properties of carbon fiber/resin composites,high modulus carbon fibers（HMCF） were treated with the polymer coating.The influence of the content of latent curing agent（LCA） in the coating layer on the carbon fiber surface properties and interface properties of carbon fiber/resin composites were studied.The results show that the polymer coating may have chemical reaction with carbon fiber or resin by IR analysis.SEM and DMTA also show polymer coating can improve the interfacical properties of carbon fiber/resin composites.The amount of LCA in the coating layer is the crucial factor to improve interfacial properties of carbon fiber/resin composites.When the content of the LCA is 20%,the interlaminar shear strength（ILSS） of the sized HMCF/epoxy resin composites is improved to 77.9 MPa,increased by 8.6% compared with that of the composites reinforced by unsized HMCF.
参考文献
| [1] | M?der E, Gao S L, Plonka R. Static and dynamic properties of single and multi-fiber/epoxy composites modified by sizings [J]. Composites Science and Technology, 2007, 67(6): 1105-1115. |
| [2] | Xu Zhiwei, Chen Li, Huang Yudong, et al. Wetability of carbon fibers modified by acrylic acid and interface properties of carbon fiber/epoxy [J]. European Polymer Journal, 2008, 44(2): 494-503. |
| [3] | Zhang Zhaozhu, Song Haojie, Men Xuehu, et al. Effect of carbon fibers surface treatment on tribological performance of polyurethane (PU) composite coating [J]. Wear, 2008, 264(7/8): 599-605. |
| [4] | 杨 禹, 吕春祥, 王心葵, 等. 纳米SiO2上浆剂的性能评价 [J]. 复合材料学报, 2007, 24(2): 38-43. |
| [5] | 王云英, 孟江燕, 陈学斌, 等. 复合材料用碳纤维的表面处理 [J]. 表面技术, 2007, 36(3): 53-57. |
| [6] | Choi M H, Jeon B H, Chung I J. The effect of coupling agent on electrical and mechanical properties of carbon fiber/phenolic resin composites [J]. Polymer, 2000, 41(9): 3243-3252. |
| [7] | Varelidis P C, Papakostopoulos D G, Pandazis C I, et al. Polyamide coated Kevlar fabric in epoxy resin: Mechanical properties and moisture absorption studies [J]. Composites: Part A, 2000, 31(6): 549-558. |
| [8] | Thomason J L, Adzima L J. Sizing up the interphase: An insider’s guide to the science of sizing [J]. Composites: Part A, 2001, 32(3/4): 313-321. |
| [9] | 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.. |
| [10] | Liu L, Song Y J, Fu H J, et al. The effect of interphase modification on carbon fiber/polyarylacetylene resin composites [J]. Applied Surface Science, 2008, 254(17): 5342-5347. |
| [11] | 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. |
| [12] | 邱求元, 邢素丽, 肖加余, 等. 碳纤维增强树脂基复合材料界面优化研究进展 [J]. 材料导报, 2006, 20(S2): 436-439. |
| [13] | 张学忠, 黄玉东, 王天玉, 胡立江. CF表面低聚倍半硅氧烷涂层对复合材料界面性能影响 [J]. 复合材料学报, 2006, 23(1): 105-111. |
| [14] | 于运花, 王成忠, 杨小平. PVP塑性界面层对CF/VE复合材料性能的影响 [J]. 高分子材料科学与工程, 2003, 19(5): 208-211. |
| [15] | Zhang Xuejun, Kang Sumei, Liu Zhanqing. Latent curing agent modified epoxy sizing agent for high modulus carbon fiber [J]. The Open Materials Science Journal, 2011, 5: 104-108. |
| [16] | Zhang Xuejun, Kang Sumei, Liu Zhanqing. Synthesis of latent curing agent for epoxy resin [J]. Advanced Materials Research, 2011, 150-151: 988-991. |
| [17] | 贺 福. 碳纤维及其应用技术 [M]. 北京: 化学工业出版社, 2004: 226-227. |
| [18] | 陈 平, 王德中. 环氧树脂及其应用 [M]. 北京: 化学工业出版社, 2004: 53-54. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%