采用预制母料法制备了碳纳米管/不锈钢纤维/尼龙6 (CNTs/SSFs/PA6)导电高分子复合材料,通过同轴传输线法、电压-电流法、拉伸试验、悬臂梁冲击等实验,测试并分析了材料的电磁屏蔽、电学和力学性能.研究发现:复合材料的电磁屏蔽效能随着不锈钢纤维含量的增加而增强,纤维含量在4wt％～6wt％时出现逾渗现象,纤维含量达到12wt％时,电磁屏蔽效能在30MHz～1.5GHz范围内均高于35dB；碳纳米管能加快导电通路形成,降低阈值附近体积电阻率；不锈钢纤维能增强材料的冲击强度,但是会降低材料的弹性模量,碳纳米管能增强材料的弹性模量,但是会降低材料的冲击强度.
参考文献
| [1] | GEETHA S;SATHEESH KUMAR K K;RAO C R K et al.EMI shielding:Metbods and materials A review[J].Journal of Applied Polymer Science,2009,112:2073-2085. |
| [2] | YANG S Y;CHEN C Y;PARNG SH .Effects of conductive fibers ard processing conditions on the electromagnetic shielding effectiveness of injection molded composites[J].Polymer Composites,2002,23:10031013. |
| [3] | Zhang MQ;Rong M.-Z. --;Zeng H.-M. --;Tan S.-T. -- .Effect of interfacial modification on metal fiber filled polypropylene composites and property balance[J].Polymer Composites,1999(3):406-412. |
| [4] | Huang CY.;Wu CC. .The EMI shielding effectiveness of PC/ABS/nickel-coated-carbon-fibre composites[J].European Polymer Journal,2000(12):2729-2737. |
| [5] | LOZANO K;ESPINOZA L;HERNANDEZ K et al.Investigation of the electromagnetic interference shielding of titanium carbide coated nanoreinforced liquid crystalline polyrner[J].Journal of Applied Physics,2009,105:103511. |
| [6] | CHEN C S;CHEN W R;CHEN S C et al.Optimum injection molding processing condiion on EMI shielding effectiveness of stainless steel fiber filled polycarbonate composite[J].International Journal of Heat and Mass Transfer,2008,35:744-749. |
| [7] | Junrong Yu;Kangbo Lu;Erwan Sourty .Characterization of conductive multiwall carbon nanotube/polystyrene composites prepared by latex technology[J].Carbon: An International Journal Sponsored by the American Carbon Society,2007(15):2897-2903. |
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%