Dispersion of multi-walled carbon nanotubes in biodegradable poly(butylene succinate) matrix.
Dispersion of multi-walled carbon nanotubes in biodegradable poly(butylene succinate) matrix.
复制标题
DOI：
10.1166/jnn.2006.368
复制
发表时间：
2006-07
影响因子：
--
通讯作者：
S. Ray;S. Vaudreuil;A. Maazouz;M. Bousmina
中科院分区：
文献类型：
--
作者：
S. Ray;S. Vaudreuil;A. Maazouz;M. Bousmina
该通讯描述了可生物降解的聚（丁二酸丁二醇酯）（PBS）/多壁碳纳米管（MWCNT）纳米复合材料的制备、表征和性能。通过在间歇式混合器中熔融共混制备纳米复合材料，MWCNT 负载量为 3 wt%。通过扫描和透射电子显微镜观察检查了 PBS 基质中多壁碳纳米管的分散分布状态，结果揭示了 PBS 基质中堆叠的多壁碳纳米管的均匀分布。通过动态机械热分析进行热机械行为的研究。结果表明，PBS的机械性能显着增强，例如，在室温下，储存弯曲模量从纯PBS的0.64 GPa增加到纳米复合材料的1.2 GPa，弹性模量值增加了约88%。使用 3 wt% MWCNT 制备纳米复合材料后，PBS 的拉伸模量和热稳定性得到适度改善，而纯 PBS 的电导率在纳米复合材料形成后显着增加。例如，面内电导率从纯PBS的5.8 x 10(-9) S/cm增加到纳米复合材料的4.4 x 10(-3)，电导率值增加了10(6)倍。
This communication describes the preparation, characterization and properties of biodegradable poly(butylene succinate) (PBS)/multi-walled carbon nanotubes (MWCNTs) nanocomposite. Nanocomposite was prepared by melt-blending in a batch mixer and the amount of MWCNTs loading was 3 wt%. State of dispersion-distribution of the MWCNTs in the PBS matrix was examined by scanning and transmission electron microscopic observations that revealed homogeneous distribution of stacked MWCNTs in PBS matrix. The investigation of the thermomechanical behavior was performed by dynamic mechanical thermal analysis. Results demonstrated substantial enhancement in the mechanical properties of PBS, for example, at room temperature, storage flexural modulus increased from 0.64 GPa for pure PBS to 1.2 GPa for the nanocomposite, an increase of about 88% in the value of the elastic modulus. The tensile modulus and thermal stability of PBS were moderately improved after nanocomposite preparation with 3 wt% of MWCNTs, while electrical conductivity of neat PBS dramatically increased after nanocomposite formation. For example, the in plane conductivity increased from 5.8 x 10(-9) S/cm for neat PBS to 4.4 x 10(-3) for nanocomposite, an increase of 10(6) fold in value of the electrical conductivity.