以油胺为分散稳定剂,在石蜡中热分解甲酸铜-碳纳米管复合物前驱体,单步制备了纳米铜修饰多壁碳纳米管(Cu-MWCNTs)/石蜡复合材料.通过XRD、TEM和DSC对Cu-MWCNTs/石蜡复合材料的物相、微观形貌及相变行为进行了表征和分析,并对其热敏性、热膨胀性和热稳定性及影响因素进行了分析研究.结果表明:纳米Cu原位沉积在MWCNTs外壁上,粒径为2～35 nm.与纯石蜡相比,Cu-MWCNTs/石蜡复合材料的相变温度和相变潜热均明显降低.Cu-MWCNTs含量为0.2wt％的Cu-MWCNTs/石蜡复合材料具有较短的升温时间,体膨胀率降低较小,且多次加热后稳定性较好,可作为此类热敏微驱动器的理想材料.
参考文献
| [1] | Robin H. Liu;Justin Bonanno;Jianing Yang;Ralf Lenigk;Piotr Grodzinski.Single-use, thermally actuated paraffin valves for microfluidic applications[J].Sensors and Actuators, B. Chemical,20042/3(2/3):328-336. |
| [2] | Svedberg M;Nikolajeff F;Thornell G.On the integration of flexible circuit boards with hot embossed thermoplastic structures for actuator purposes[J].Sensors and Actuators, A. Physical,20062(2):534-547. |
| [3] | Wang, JF;Xie, HQ;Xin, Z.Thermal properties of paraffin based composites containing multi-walled carbon nanotubes[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,20091/2(1/2):39-42. |
| [4] | Han ZH;Yang B;Kim SH;Zachariah MR.Application of hybrid sphere/carbon nanotube particles in nanofluids[J].Nanotechnology,200710(10):5701-1-5701-4-0. |
| [5] | Neetu Jha;S.Ramaprabhu.Synthesis and Thermal Conductivity of Copper Nanoparticle Decorated Multiwalled Carbon Nanotubes Based Nanofluids[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200825(25):9315-9319. |
| [6] | Chen, L.;Xie, H.;Yu, W..Multi-walled carbon nanotube/silver nanoparticles used for thermal transportation[J].Journal of Materials Science,201214(14):5590-5595. |
| [7] | 徐斌;楼白杨;麻琼彤;李晓.纳米铜/石蜡相变驱动复合材料制备及热物理性能[J].复合材料学报,2013(2):124-131. |
| [8] | Chen P.;Lin J.;Tan K.L.;Wu X..Synthesis of Cu nanoparticles and microsized fibers by using carbon nanotubes as a template[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,199922(22):4559-4561. |
| [9] | Seung I. Cha;Kyung T. Kim;Salman N. Arshad;Chan B. Mo;Soon H. Hong.Extraordinary Strengthening Effect of Carbon Nanotubes in Metal-Matrix Nanocomposites Processed by Molecular-Level Mixing[J].Advanced Materials,200511(11):1377-1381. |
| [10] | Vassilios Tzitzios;Vasilios Georgakilas;Eudokia Oikonomou.Synthesis and characterization of carbon nanotube/metal nanoparticle composites well dispersed in organic media[J].Carbon: An International Journal Sponsored by the American Carbon Society,20065(5):848-853. |
| [11] | Dong Zhang;Shengli Tian;Deyan Xiao.Experimental study on the phase change behavior of phase change material confined in pores[J].Solar Energy,20075(5):653-660. |
| [12] | Ahmet Sari;Ali Karaipekli.Thermal conductivity and latent heat thermal energy storage characteristics of paraffin/expanded graphite composite as phase change material[J].Applied thermal engineering: Design, processes, equipment, economics,20078-9(8-9):1271-1277. |
| [13] | Ahmet San;Cemil Alkan;Ali Karaipekli;Adem OEnal.Preparation, characterization and thermal properties of styrene maleic anhydride copolymer (SMA)/fatty acid composites as form stable phase change materials[J].Energy conversion & management,20082(2):373-380. |
| [14] | Florian H.Gojny;Make H.G.Wichmann;Bodo Fiedler;Ian A.Kinloch;Wolfgang Bauhofer;Alan H.Windle;Karl Schulte.Evaluation and identification of electrical and thermal conduction mechanisms in carbon nanotube/epoxy composites[J].Polymer: The International Journal for the Science and Technology of Polymers,20066(6):2036-2045. |
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%