研究了炭黑/聚甲基丙烯酸丁酯(CB/PBMA)复合材料在有机蒸汽中的电阻响应和吸附行为.结果表明,在较大的有机蒸汽分压范围内(P/P°=0~0.16),CB/PBMA导电复合材料在丙酮和氯仿蒸汽中的电阻响应程度的对数与蒸汽分压之间存在良好的线性关系,而且该复合材料的电阻响应程度随有机蒸汽分压的变化曲线与其吸附等温线吻合,而与炭黑的吸附等温线差别较大.前者的吸附曲线符合Ⅲ型吸附,因为复合材料表面没有微孔只有大孔,而后者的吸附曲线是典型的Ⅱ型吸附,这是由于炭黑表面有丰富的微孔和中孔.
参考文献
[1] | Albert KJ.;Schauer CL.;Sotzing GA.;Stitzel SE.;Vaid TP. Walt DR.;Lewis NS. .Cross-reactive chemical sensor arrays [Review][J].Chemical Reviews,2000(7):2595-2626. |
[2] | Marquez A.;Cruz R.;Uribe J. .CONDUCTIVITY VARIATION INDUCED BY SOLVENT SWELLING OF AN ELASTOMER-CARBON BLACK-GRAPHITE COMPOSITE [Review][J].Journal of Applied Polymer Science,1997(12):2221-2232. |
[3] | Dong XM;Fu RW;Zhang MQ;Zhang B;Rong MZ .Electrical resistance response of carbon black filled amorphous polymer composite sensors to organic vapors at low vapor concentrations[J].Carbon: An International Journal Sponsored by the American Carbon Society,2004(12/12):2551-2559. |
[4] | 陈水挟,罗颖,董国华,陈建良,武清毓,曾汉民.载贵金属活性碳纤维对氙吸附性能的研究[J].高技术通讯,2005(02):47-50. |
[5] | Chen SG;Hu JW;Zhang MQ;Rong MZ;Zheng Q .Improvement of gas sensing performance of carbon black/waterborne polyurethane composites: Effect of crosslinking treatment[J].Sensors and Actuators, B. Chemical,2006(1):361-369. |
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