The poly(urethane-ionic liquid)/multi-walled carbon nanotubes composites

• Published in: Composites science and technology Vol. 70; no. 12; pp. 1697 - 1703
• Main Authors: Liu, Li, Zheng, Zhen, Gu, Chenyi, Wang, Xinling
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 31-10-2010; Elsevier
• Subjects: A. Carbon nanotubes; A. Nano composites; A. Polymers; Applied sciences; B. Interfacial strength; Cations; Composites; Dispersions; Exact sciences and technology; Forms of application and semi-finished materials; Ionic liquids; Liquids; Mechanical properties; Multi wall carbon nanotubes; Polymer industry, paints, wood; Polyurethane resins; Technology of polymers; Tensile strength; B. Interfacial strength; A. Polymers; A. Nano composites; A. Carbon nanotubes; Iminium compounds; Carbon nanotubes; Mechanical properties; Dispersion reinforced material; Experimental study; Urethane copolymer; Polyaddition; Triazine derivative copolymer; Composite material; Tensile strength; Ionic liquid; Thermal properties; Multiwalled nanotube; Morphology; Preparation; Concentration effect; Nanocomposite; Imidazole derivative copolymer
• ISSN: 0266-3538; 1879-1050
• DOI: 10.1016/j.compscitech.2010.06.007

In the paper, a novel kind of imidazolium based poly(urethane-ionic liquid)/multi-walled carbon nanotubes (PUIL/MWCNT) composites was facilely prepared by uncovalent ways. The imidazolium based ionic liquid (IL) greatly improved the dispersion of pristine MWCNTs in PUIL by the
π-cation interaction formed between the imidazolium cation and the
π-electron of MWCNTs. The PUIL/MWCNT composites showed obviously increased modulus, glass transition temperature and tensile strength in comparison with PU/MWCNT composites. The thermal and mechanical properties of the PUIL/MWCNT composites presented significant increase with low load of the MWCNTs. It indicated the interactions between PUIL and MWCNTs played an important role to enhance the performances of the composites.