Percolation behaviour of polypropylene glycol filled with multiwalled carbon nanotubes and Laponite
Source abstract
Abstract
Abstract The percolation behaviour of the hybrid composites of polypropylene glycol (PPG) filled with multiwalled carbon nanotubes (MWCNTs) and Laponite RD (Lap), or with MWCNTs and organo-modified Laponite (LapO) was studied by wide angle X-ray diffraction (XRD), microscopic image analysis, and electrical conductivity measurements. Cetyltrimethylammoniumbromide (CTAB) was used as an organo-modifier of Laponite. The Lap and LapO were found to have rather different affinity to PPG. XRD data have evidenced finite PPG integration inside Lap and complete exfoliation of LapO stacks in a PPG matrix. In PPG + MWCNT composites containing no Lap or LapO, increase of MWCNT concentration above the critical value C p ∼ 0.4 wt% resulted in percolation. The value of the percolation threshold, C p , was practically the same for hybrid PPG + MWCNT + Lap composites. However, it noticeably decreased ( C p ∼ 0.2 wt%) in PPG + MWCNT + LapO materials. The observed behaviour of the percolation threshold may be attributed to the effects exerted by LapO on the size of MWCNT aggregates, state of their dispersion and homogeneity of their spatial distribution.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polymer Nanocomposites and Properties · Conducting polymers and applications · Carbon Nanotubes in Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
Show source-provided references
1. A review and analysis of electrical percolation in carbon nanotube polymer composites10.1016/j.compscitech.2008.06.018 ↗
2. Carbon nanotube–polymer interactions in nanocomposites: a review10.1016/j.compscitech.2011.10.002 ↗
3. 2010
4. Thermal and flammability properties of polypropylene/carbon nanotube nanocomposites10.1016/j.polymer.2004.03.088 ↗
5. Mechanical behaviors of polypropylene/carbon nanotube nanocomposites: the effects of loading rate and temperature10.1016/j.msea.2007.08.050 ↗
6. Carbon nanotube dispersion and exfoliation in polypropylene and structure and properties of the resulting composites10.1016/j.polymer.2008.02.029 ↗
7. New solvents for nanotubes: approaching the dispersibility of surfactants10.1021/jp908923m ↗
8. Liquid-phase exfoliation of nanotubes and graphene10.1002/adfm.200901640 ↗
9. Clay minerals affect the stability of surfactant-facilitated carbon nanotube suspensions10.1021/es801150j ↗
10. The influence of organophobic clay on field electron emission uniformity and lifetime of screen printed carbon nanotube film10.1016/j.tsf.2009.06.013 ↗
11. Segregation of carbon nanotubes/organoclays rendering polymer blends self-extinguishing10.1021/ma900966k ↗
12. Observation of carbon nanotube and clay micellelike microstructures with dual dispersion property10.1021/jp9026805 ↗
13. A simple method for preparing carbon nanotubes/clay hybrids in water10.1021/jp811260p ↗
14. Clay assisted dispersion of carbon nanotubes in conductive epoxy nanocomposites10.1002/adfm.200600785 ↗
15. Multi-purpose organically modified carbon nanotubes: from functionalization to nanotube composites10.1021/ja8002952 ↗
16. Synergistic effect of multiwall carbon nanotube and organophilic montmorillonite on toughening epoxy resin
17. Synergistic effects of Na+-montmorillonite and multi-walled carbon nanotubes on mechanical properties of chitosan film. eXPRESS10.3144/expresspolymlett.2009.38 ↗
18. Influence of organo-clay on electrical and mechanicalproperties of PP/MWCNT/OC nanocomposites10.1016/j.eurpolymj.2011.03.012 ↗
19. Electrical, thermal, and mechanical characterization of poly(propylene)/carbon nanotube/clay hybrid composite materials
20. The influence of synergistic stabilization of carbon black and clay on the electrical and mechanical properties of epoxy composites10.1016/j.carbon.2009.07.031 ↗
21. Influence of clay nanofiller on electrical and rheological properties of conductive polymer composite10.1016/j.matlet.2003.07.010 ↗
22. Laponite assisted dispersion of carbon nanotubes in water10.1016/j.jcis.2011.09.025 ↗
23. Electrorheological properties of organically modified nanolayered laponite: influence of intercalation, adsorption and wettability10.1039/b818502f ↗
24. Synthesis of fine carbon nanotubes on coprecipitated metal oxide catalysts10.1007/s11167-005-0420-y ↗
25. Visible spectroscopy of methylene blue on hectorite, Laponite B and barasym in aqueous suspension10.1346/CCMN.1988.0360302 ↗
26. van Olphen · 1991
27. Dielectric relaxation spectroscopy in poly(hydroxyethyl acrylates)/water hydrogels10.1002/polb.1995.090331205 ↗
28. Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials10.1016/S0927-796X(00)00012-7 ↗
29. A review on polymer–layered silicate nanocomposites10.1016/j.progpolymsci.2008.07.008 ↗
30. Percolation behaviour of ultrahigh molecular weight polyethylene/multi-walled carbon nanotubes composites10.1016/j.eurpolymj.2006.12.015 ↗
31. Critical concentration in percolating systems containing a high-aspect-ratio filler10.1103/PhysRevB.53.6209 ↗
32. Microstructure and incubation processes in composite liquid crystalline material (5CB) filled with multi walled carbon nanotubes10.1002/mawe.201100721 ↗
33. Nanoparticle induced network self-assembly in polymer–carbon black composites10.1016/j.polymer.2006.05.015 ↗