Physisorption of ionic salts to carbon nanotubes for enhancing dispersion and thermomechanical properties of carbon nanotube-filled epoxy resins
Source abstract
Abstract
Abstract Cation–π effect on physisorption of aromatic ionic salts to multi-walled carbon nanotube (MWCNT) was demonstrated by the excess adsorption over their pre-ionized aromatic compounds through thermogravimetric analysis. Their adsorption layer on the surface of MWCNT was confirmed by high resolution transmission electron microscopy and X-ray photoelectron spectroscopy. Ionic salt-adsorbing MWCNT showed better dispersion in acetone than pristine and pre-ionized compound-adsorbing MWCNT. Incorporation of 1 wt% ionic salt-adsorbing MWCNT is able to gel the epoxy resin at room temperature according to the rheological study. Based on our proposed model, 1 wt% fully-dispersed MWCNTs are enough to form an interconnected network in epoxy resin resulting in gelation. After crosslinking with amine curing agent, the epoxy nanocomposites incorporating 1 wt% ionic salt-adsorbing MWCNT displayed substantially higher glass and s transition temperatures than that incorporating pristine MWCNT.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Polymer Nanocomposites and Properties · Epoxy Resin Curing Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (27)
Show source-provided references
1. Fabrication of free-standing, conductive, and transparent carbon nanotube films10.1002/adma.200801062 ↗
2. The poly(urethane-ionic liquid)/multi-walled carbon nanotubes composites10.1016/j.compscitech.2010.06.007 ↗
3. Effect of surfactant treatment on thermal stability and mechanical properties of CNT/polybenzoxazine nanocomposites10.1016/j.compscitech.2012.08.020 ↗
4. Improved exchange reaction in an ionic liquid electrolyte of a quasi-solid-state dye-sensitized solar cell by using 15-crown-5-functionalized MWCNT10.1039/c1jm12179k ↗
5. Enhancing photovoltaic performance of all-solid-state dye-sensitized solar cells by incorporating ionic liquid-physisorbed MWCNT10.1039/c2jm31658g ↗
6. Nanotube-silicon heterojunction solar cells10.1002/adma.200801810 ↗
7. Chemistry of carbon nanotubes10.1021/cr050569o ↗
8. Enhancing effect of KMnO4 oxidation of carbon nanotubes network embedded in elastic polyurethane on overall electro-mechanical properties of composite10.1016/j.compscitech.2013.03.023 ↗
9. Development of conducting polychloroprene rubber using imidazolium based ionic liquid modified multi-walled carbon nanotubes10.1016/j.compscitech.2011.05.018 ↗
10. Kinetically controlled side-wall functionalization of carbon nanotubes by nitric acid oxidation10.1021/jp711975a ↗
11. Functionalizing carbon nanotubes by plasma modification for the preparation of covalent-integrated epoxy composites10.1021/cm062277p ↗
12. In-situ synthesis of soluble Poly(3-hexylthiophene)/multiwalled carbon nanotube composite: morphology, structure, and conductivity10.1021/ma061548e ↗
13. Highly conductive core–shell nanocomposite of poly(N-vinylcarbazole)-polypyrrole with multiwalled carbon nanotubes10.1002/marc.200800356 ↗
14. Dispersion of pristine carbon nanotubes using conjugated block copolymers10.1002/adma.200701995 ↗
15. Molecular ordering of organic molten salts triggered by single-walled carbon nanotubes10.1126/science.1082289 ↗
16. The cation–π interaction10.1021/cr9603744 ↗
17. Why single-walled carbon nanotubes can be dispersed in imidazolium-based ionic liquids?10.1021/nn800510g ↗
18. Extraordinary aspects of bromo-functionalized multi-walled carbon nanotubes as initiator for polymerization of ionic liquid monomers10.1016/j.polymer.2012.03.020 ↗
19. Zeta-potential measurements of surfactant-wrapped individual single-walled carbon nanotubes10.1021/jp070853e ↗
20. X-ray photoelectron spectroscopy reference data for identification of the C3N4 phase in carbon–nitrogen films10.1016/S0925-9635(00)00345-9 ↗
21. X-ray photoelectron spectroscopic studies of poly(2, 2′-bithiophene) and its complexes10.1103/PhysRevB.44.10461 ↗
22. Simple approach for preparation of epoxy suspension composites based on carbon nanotubes and a model clay10.1021/cm1009306 ↗
23. Rheology of multiwall carbon nanotube suspensions10.1122/1.2736424 ↗
24. Relationship between viscoelastic properties and gelation in thermosetting system10.1002/app.1982.070270220 ↗
25. Solubilisation of multi-walled carbon nanotubes by a-pyrene functionalised PMMA and their liquid crystalline self-organisation10.1039/b803099e ↗
26. Structure, thermal and fracture mechanical properties of benzoxazine-modified amine-cured DGEBA epoxy resins10.3144/expresspolymlett.2011.27 ↗
27. The effect of hygrothermal fatigue on physical/mechanical properties and morphology of neat epoxy resin and graphite/epoxy composites10.1002/app.1985.070300619 ↗