Mechanically and Thermally Enhanced Multiwalled Carbon Nanotube–Graphene Hybrid filled Thermoplastic Polyurethane Nanocomposites

Abstract

Multiwalled carbon nanotube (MWCNT)–chemically reduced graphene oxide (CRGO) hybrid in different weight ratios were prepared by solution mixing. MWCNT–CRGO (1:1) hybrid exhibited better dispersion stability in dry THF and characterized. Subsequently, it was used as reinforcing filler in thermoplastic polyurethane (TPU) nanocomposites by solution intercalation. Further investigations showed that 0.25 and 0.50 wt.‐% MWCNT–CRGO (1:1) loaded TPU exhibit significant improvement in thermal stability (40 °C at 50% weight loss) and storage modulus (206% at 50 °C) respectively. This is attributed to homogeneous dispersion and strong interfacial interaction between TPU and filler.

A Two‐Step Method Based on Micromechanical Models to Predict the Young's Modulus of Polymer Nanocomposites

“…[3][4][5][6][7][8][9] The contribution of interphase to mechanical properties of nanocomposites is considerable, due to the high interfacial area at polymernanoparticles interfaces. [10][11][12][13][14][15][16][17][18][19][20] It was reported that the interphase volume fraction exceeds the nanoparticle volume fraction in some samples demonstrating that the mechanical properties are significantly improved by both nanoparticles and interphases. [21] Therefore, many researchers have studied the interphase properties and its contribution to the mechanical properties of polymer nanocomposites.…”

Mechanical Properties, Thermal Stability, and Glass Transition Behaviors of a Waterborne Polyurethane/Graphene Oxide Nanocomposite

“…At the highest GO content, aggregation of GO may begin to take place and this degrades the mechanical properties. The decrease of the mechanical properties above a certain GO content was observed in many studies 26,27) . In many studies 13,18,19,28,29) , the incorporation of GO or functionalized graphene results in the decreased EB.…”

Assembly of layered double hydroxide on multi‐walled carbon nanotubes as reinforcing hybrid nanofiller in thermoplastic polyurethane/nitrile butadiene rubber blends

“…. The spectrum of PCNTs shows the presence of two peaks at 3430 and 1600 cm −1 due to OH stretching vibration of the surface groups and conjugated CC bonds, respectively . The spectrum of SFCNTs exhibits peaks at 3415 cm −1 (OH stretching vibration), 2925 cm −1 (CH 2 stretching mode), 1675 cm −1 (CC stretching vibration), 1575 cm −1 (CH 2 bending mode), 1210 cm −1 (skeletal vibration involving the bridge SO stretch) and 1098 cm −1 (CC stretching) confirming presence of SDS in SFCNTs .…”