采用扫描电子显微镜(SEM)、X射线光电子能谱(XPS)、X射线衍射(XRD)方法,尝试将电化学阴阳极交变技术应用于碳纤维表面处理,研究了电化学阴阳极交变处理对PAN基碳纤维表面组成和微观结构的影响.结果表明,电化学阴阳极交变处理使碳纤维表面沟槽加深,可以增加碳纤维与基体的锚固作用;表面C含量降低而O含量升高,表面合氧官能团中COOH含量明显增加,而C-OH含量减少,增大了碳纤维的表面活性,使其更有利于与基体以化学键的形式结合;同时电化学阴阳极交变处理碳纤维过程中阴极产生的氢能渗入碳纤维内部,使碳纤维晶体结构的微观尺寸发生变化,(002)晶面间距d(002)增大,堆垛厚度Lc增大,使得碳纤维直径增大.处理后层间剪切强度(ILSS)明显增加以及部分组别碳纤维的拉伸强度(Tensile strength,TS)增加.
参考文献
[1] | 贺福.碳纤维及其应用技术[M].北京:化学工业出版社,2004 |
[2] | Interfacial and mechanical properties of carbon fibers modified by electrochemical oxidation in (NH_4HCO_3)/(NH_4)_2C_2O_4·H_2O aqueous compound solution[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2010(21):P.6199. |
[3] | F. Vautard;P. Fioux;L. Vidal .Influence of the carbon fiber surface properties on interfacial adhesion in carbon fiber-acrylate composites cured by electron beam[J].Composites, Part A. Applied science and manufacturing,2011(7):859-867. |
[4] | Li, J.;Cai, C.L. .The carbon fiber surface treatment and addition of PA6 on tensile properties of ABS composites[J].Current applied physics: the official journal of the Korean Physical Society,2011(1):50-54. |
[5] | Lee WH.;Reucroft PJ.;Lee JG. .XPS study of carbon fiber surfaces treated by thermal oxidation in a gas mixture of O-2/(O-2+N-2)[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(1/2):136-142. |
[6] | 陈广立,耿浩然,陈俊华,李辉,张芬.不同处理方法对碳纤维表面形态及Cf/C复合材料强度的影响[J].材料工程,2006(z1):160-164. |
[7] | 郭云霞,刘杰,梁节英.电化学改性PAN基碳纤维表面及其机理探析[J].无机材料学报,2009(04):853-858. |
[8] | Liu J;Tian Y L;Chen Y J et al.A surface treatment technique of electrochemical oxidation to simultaneously improve the interfacial bonding strength and the tensile strength of PAN-based carbon fibers[J].Materials Chemistry and Physics,2010,122(2-3):548. |
[9] | Sezai S A;Jurgen S .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(02):227. |
[10] | Iroh J O;Wood G A .Control of the surface structure of graphite fibers for improved composite interfacial properties[J].Surf Modif Techn,1998,12:405. |
[11] | Alexander B;Adam F L;Sezai S A et al.Electrocoating of carbon fibres:A route for interface control in carbon fiber reinforced poly methylmethcrylate[J].Composites Science and Technology,2005,65(10):1564. |
[12] | 朱乃姝,马世宁,孙晓峰,陈茜.等离子处理及固化方式对碳纤维复合材料动态力学性能的影响[J].中国表面工程,2010(05):59-63,封3. |
[13] | Gulyás J;F(o)1des E;Lázár A et al.Electrochemical oxidation of carbon fibres:Surface chemistry and adhesion[J].Composites Part A:Applied Science and Manufacturing,2001,32(3-4):353. |
[14] | 魏宝明.金属腐蚀理论及应用[M].北京:化学工业出版社,1984 |
[15] | 郭云霞,刘杰,梁节英.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(03):49-54. |
[16] | Burstein G T;Hutchings I M;Sasaki K .Electrochemically induced annealing of stainless-steel surface[J].Nature,2000,407(6806):885. |
[17] | G. T. Burstein;K. Sasaki;I. M. Hutchings .Lattice Changes Generated by Electrochemically Induced Surface Annealing of Austenitic Stainless Steel[J].Electrochemical and solid-state letters,2003(11):D13-D15. |
[18] | 李志林,曾致翚,陈涛.电化学诱导退火中氢对相变和硬度的影响[J].腐蚀与防护,2005(10):425-428. |
[19] | 李海涛 .循环伏安法对PAN基高模碳纤维阳极氧化的研究[D].北京化工大学,2010. |
[20] | 廖立兵;李国武.X射线衍射方法与应用[M].北京:地质出版社,2008 |
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%