经过硝酸处理的用CVD法生产的巴基管与PA6(尼龙6)采用原位复合法进行复合时,将以其外壁上联结的羟基-OH和羧基-COOH参与己内酰胺合成PA6的缩水聚合反应,从而结合到PA6的网状大分子结构中,同时也阻止PA6分子长大,并产生较大应力.用浓硝酸处理过的巴基管短小而且分散,在基体中微观下分散度高,可获得真正的纳米复合材料.未处理过的巴基管呈微米级分散,在基体中聚集成团,成为应力源,使复合材料的力学性能,特别是冲击韧性大大降低.巴基管可大大提高PA6的抗老化性能,延长使用寿命.
参考文献
[1] | Rodney S Ruoff;Donald C Lorents .[J].Carbon,1995,33(07):925-930. |
[2] | Sumio Iijima .[J].Nature,1991,354:56-58. |
[3] | Philip Ball .[J].Nature,1996,382:207-208. |
[4] | Barrera EV.;Callahan DL.;Sims J. .DEVELOPMENT OF FULLERENE-REINFORCED ALUMINUM[J].Journal of Materials Research,1995(2):366-371. |
[5] | Xu Zhude;Chen Wanxi;Leng Yongjun et al.[J].Journal of Materials Science Letters,1995,14:1030-1031. |
[6] | 马仁志;朱艳秋;魏秉庆 等.[J].复合材料学报,1997,2:37-42. |
[7] | Amir H;Rezaifard Michael G .Bader Paul A Smith[J].Composites Science and Technology,1994,52:275-285. |
[8] | Daoi A;Ogale A A .[J].Composites Science and Technology,1996,56:911-920. |
[9] | Hoecker F;Friedrich K;Blumberg H et al.[J].Composites Science and Technology,1995,54:317-327. |
[10] | Piggott M R .[J].Composites Science and Technology,1995,55:269-276. |
[11] | Hamid Salehi-Mobarakeh;Abdellatif Ait-Kadi;Joseec Brisson .[J].Polymer Engineering and Science,1996,36(06):778-785. |
[12] | Ajayan P M;Stephan O;Colliex C et al.[J].Science,1994,265:1212-1214. |
[13] | Chunming Niu;Enid K. Sichel;Robert Hoch .High power electrochemical capacitors based on carbon nanotube electrodes[J].Applied physics letters,1997(9/12):1480-1482. |
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%