Improving the flexural and thermomechanical properties of amino-functionalized carbon nanotube/epoxy composites by using a pre-curing treatment
Source abstract
Abstract
A prior thermal (pre-curing) treatment of mixtures of epoxy monomer and amino-functionalized carbon nanotubes (CNTs) was used to promote a chemical reaction between the matrix and the reinforcement, favouring the formation of a strong interface. Samples of epoxy resin and different weight percentages of amino-functionalized multi-walled CNTs were prepared with and without the pre-curing treatment (150 °C, 1 h). The degree of dispersion of the nanofiller was better when this pre-curing treatment was used. This allowed a higher CNT content while keeping a high sample homogeneity. Without the pre-curing step, the addition of CNTs increases both the flexural strength and strain to failure by 45%. Moreover, with the pre-curing step, the nanocomposite with 0.25 wt.% CNTs presents an increase of flexural strength by 58% and strain to failure by 68% regard to neat epoxy resin.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Fiber-reinforced polymer composites · Synthesis and properties of polymers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Sensors and actuators based on carbon nanotubes and their composites: a review10.1016/j.compscitech.2008.01.006 ↗
2. Structural health monitoring of glass fiber reinforced composites using embedded carbon nanotube (CNT) fibers10.1016/j.compscitech.2009.10.017 ↗
3. Functionalized effect on carbon nanotube/epoxy nano-composites10.1016/j.msea.2006.07.106 ↗
4. Dispersion and alignment of carbon nanotubes in polymer matrix: a review10.1016/j.mser.2005.04.002 ↗
5. Polymer nanocomposites based on functionalized carbon nanotubes10.1016/j.progpolymsci.2010.03.002 ↗
6. The influence of functionalized MWCNT reinforcement on the thermomechanical properties and morphology of epoxy nanocomposites10.1016/j.compscitech.2008.05.011 ↗
7. Fundamental aspects of nano-reinforced composites10.1016/j.compscitech.2005.01.014 ↗
8. Effect of CNT surface funcionalisation on the mechanical properties of multi-walled carbon nanotube epoxy-composites10.1016/j.compositesa.2009.04.021 ↗
9. Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites10.1016/j.carbon.2010.01.028 ↗
10. Influence of different carbon nanotubes on the mechanical properties of epoxy matrix composites – a comparative study10.1016/j.compscitech.2005.04.021 ↗
11. The reinforcement role of different amino-functionalized multi-walled carbon nanotubes in epoxy nanocomposites10.1016/j.compscitech.2007.04.025 ↗
12. The effect of interfacial chemistry on molecular mobility and morphology of multiwalled carbon nanotubes epoxy nanocomposite10.1016/j.polymer.2007.06.073 ↗
13. Rheological behaviour of nanoreinforced epoxy adhesives of low electrical resistivity for joining carbon fiber/epoxy laminates10.1163/016942409X12584625925060 ↗
14. Prolongo SG, Gude MR, Ureña A. The curing process of epoxy/amino-functionalized MWCNTs: calorimetry, molecular modelling, and electron microscopy. J Nanotechnol 2010 [article ID 420432].10.1155/2010/420432 ↗
15. Effects of dispersion techniques of carbon nanofibers on the thermo-physical properties of epoxy nanocomposites10.1016/j.compscitech.2008.05.015 ↗
16. Functionalized SWNT/polymer nanocomposites for dramatic property improvement10.1002/polb.20510 ↗
17. Functionalisation effect on the thermo-mechanical behaviour of multi-wall carbon nanotube/epoxy composites10.1016/j.compscitech.2004.01.024 ↗
18. Thermo-physical properties of epoxy nanocomposites reinforced with amino-functionalized multi-walled carbon nanotubes10.1016/j.compositesa.2006.10.012 ↗
19. Reinforcing epoxy polymer composites through covalent integration of functionalized nanotubes10.1002/adfm.200305162 ↗