分子量在聚合物包裹及多壁碳纳米管在聚偏氟乙烯基体中的分散中的作用
Role of Molecular Weight in Polymer Wrapping and Dispersion of MWNT in a PVDF Matrix.
作者信息
Namasivayam Muthuraman, Andersson Mats R, Shapter Joseph
机构信息
Flinders Centre for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, Bedford Park, Adelaide, South Australia 5042, Australia.
Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia.
出版信息
Polymers (Basel). 2019 Jan 17;11(1):162. doi: 10.3390/polym11010162.
The thermal and electrical properties of a polymer nanocomposite are highly dependent on the dispersion of the CNT filler in the polymer matrix. Non-covalent functionalisation with a PVP polymer is an excellent driving force towards an effective dispersion of MWNTs in the polymer matrix. It is shown that the PVP molecular weight plays a key role in the non-covalent functionalisation of MWNT and its effect on the thermal and electrical properties of the polymer nanocomposite is reported herein. The dispersion and crystallisation behaviour of the composite are also evaluated by a combination of scanning electron microscopy (SEM) and differential scanning calorimetry (DSC).
聚合物纳米复合材料的热性能和电性能高度依赖于碳纳米管填料在聚合物基体中的分散情况。用聚乙烯吡咯烷酮（PVP）聚合物进行非共价功能化是促使多壁碳纳米管在聚合物基体中有效分散的极佳驱动力。结果表明，PVP分子量在多壁碳纳米管的非共价功能化中起关键作用，本文报道了其对聚合物纳米复合材料热性能和电性能的影响。还通过扫描电子显微镜（SEM）和差示扫描量热法（DSC）相结合的方式评估了复合材料的分散和结晶行为。
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