多壁碳纳米管在离子液体中分散工艺的优化  

Optimization for Dispersion Technology of Multi-walled Carbon Nanotubes in Ionic Liquids by Orthogonal Tests

作　　者：卜路霞[1] 刘成成[1] 明媚[1] 石军[1] BU Luxia LIU Chengcheng MING Mei SHI Jun(School of Basic Science, Tianjin Agricultural University, Tianjin 300384, Chin)

机构地区：[1]天津农学院基础科学学院,天津300384

出　　处：《电镀与精饰》2016年第11期1-5,共5页Plating & Finishing

基　　金：天津市应用基础与前沿技术研究计划(15JCQNJC05900);天津市大学生创新训练项目(201510061089)

摘　　要：采用超声波分散法,考察多壁碳纳米管(MWNTs)在氯化胆碱-丙二酸离子液体中的粒径分布,通过正交试验法优选MWNTs在离子液体中较好的分散工艺条件。结果表明,在超声t为4 h,离子液体θ为70℃,MWNTs质量浓度为3 mg/L,超声功率为380 W的分散条件下,所测MWNTs平均粒径最小,分散效果较好。采用透射电镜和稳定性实验进一步考察了MWNTs在该较优工艺条件下的分散稳定性。研究表明,MWNTs在离子液体中分散良好,且在15 h内能够稳定存在。The particle size distribution of MWNTs in choline chloride-malonic acid ionic liquids was investigated by the ultrasonic dispersion method, and then the better dispersion conditions were optimized by orthogonal tests. The results showed that under the ultrasonic time of 4 h, ionic liquid temperature of 70 ℃, MWNTs content of 3 mg/L and ultrasonic power of 380 W, the average diameter of MWNTs reached the minimum and the dispersion effect was better. The dispersion stability of MWNTs under the optimal process conditions was further investigated by TEM and stability experiments. And the studies indicated that MWNTs were well dispersed in the ionic liquids and could exist stably for 15 h.

关 键 词：MWNTS 超声分散 正交试验 离子液体 

分 类 号：O613.71[理学—无机化学] TQ127.1[理学—化学]