采用浓硝酸氧化和聚酰亚胺(PI)包覆复合方法对短切碳纤维(CF)进行表面改性,提高CF增强热塑性聚酰亚胺复合材料(CF/TPI)力学性能.采用比表面积及孔容分析、原子力显微镜、扫描电子显微镜、热重分析仪研究了CF表面处理前后结构和形貌的变化.结果表明:CF经浓HNO3处理后比表面积增加144.2%,CF表面沟壑加深;复合处理后有PI层包覆在CF表面;包覆处理后CF耐热性能提高.力学性能测试表明,经过包覆处理后CF/TPI复合材料的拉伸强度比未处理的提高11.34%,弹性模量提高109.2%,弯曲强度提高18.78%,冲击强度提高74.15%.
参考文献
| [1] | 杜善义.先进复合材料与航空航天[J].复合材料学报,2007,24(1):1-12.Du Shanyi.Advanced composite materials and aerospace engineering[J].Acta Materiae Compositae Sinica,2007,24(1):1-12. |
| [2] | 陈震霖.朱鹏,王晓东.等.填料特性对聚酰亚胺复合材料摩擦学性能的影响[J].复合材料学报,2006,23(3):49-63.Chen Zhenlin,Zhu Peng,Wang Xiaodong,et al.Effects of properties of the fillers on the polyimide composite tribological behaviors[J].Acta Materiae Compositae Sinica,2006,23(3):49-53. |
| [3] | Wei Xie,Wei Pingpan,Kathy C C.Thermal characterization of PMR polyimides[J].Thermochimica Acta,2001,367/368:143-153. |
| [4] | Sarac A S,Springer J.Electrografting of 3-methyl thiophene and carbazole random copolymer onto carbon fiber:Characterization by FTIR-ATR,SEM,EDX[J].Surface and Coatings Technology,2002,160(2/3):227-238. |
| [5] | Jang Jyongsik,Yang Hojung.The effect of surface treatment on the performance improvement of carbon fiber/polybenzoxazing composites[J].Journal of Materials Science,2000,35:2297-2303. |
| [6] | 贺福.碳纤维及其应用技术[M].北京:化学工业出版社,2004:217-218. |
| [7] | He J M,Huang Y D.Effect of silane-coupling agents on interfacial properties of CF/PI composites[J].Journal of Applied Polymer Science,2007,106(4):2231-2237. |
| [8] | Varelidis P C,McCullough R L,Papaspyrides C D.The effect on the mechanical properties of carbon/epoxy composites of polyamide coatings on the fibers[J].Composites Science and Technology,1999,59(12),1813-1823. |
| [9] | Song Haojie,Zhang Zhaozhu,Luo Zhuangzhu.A study of tribological behaviors of the phenolic composite coating reinforced with carbon fibers[J].Materials Science & Engineering A,2007,445/446,593-599. |
| [10] | 闰明涛,胡晓敏,高俊刚.聚乳酸/羧基化聚丙烯共混物的形态与热性能研究[J].高分子学报,2007(12):1121-1126.Run Mingtao,Hu Xiaomin,Gao Jungang.Morphology and thermal properties of the poly (lactic acid)/carboxylated polypropylene blends[J].Acta Polymerica Sinica,2007(12):1121-1126. |
| [11] | Wan Y Z,Wang Y L,Li Q Y.Influence of surface treatment of carbon fibers on interfacial adhesion strength and mechanical properties of PLA-based composites[J].Journal of Applied Polymer Science,2001,80(3):367-376. |
| [12] | Xu Bing,Wang Xiaoshu,Lu Yun.Surface modification of polyacrylonitrile-based carbon fiber and its interaction with imide[J].Applied Surface Science,2006,253(5),2695-2701. |
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%