The thermal and mechanical properties of a polyurethane/multi-walled carbon nanotube composite

The effect of ultra-thin graphite on the morphology and physical properties of thermoplastic polyurethane elastomer composites

“…However, this polymer shows low mechanical strength and poor thermal stability hampering its use in high-temperature applications. The incorporation of carbon nanotubes [10][11][12][13][14][15] and nanoclays [16][17][18] has lead to significant improvements of these polymer characteristics. First publications on graphene based materials (graphene, functionalized graphene, graphene oxide) also report on reinforcing effects in TPU [19][20][21][22][23][24][25].…”

Microinjection Molding of Enhanced Thermoplastics

“…Different polymeric matrices have been considered, such as PMMA (Jia et al, 1999;Gorga & Cohen, 2004), polystyrene (PS) (Qian et al, 2000;Yang et al, 2005), polypropylene (PP) (Dondero & Gorga, 2006;Bao & Tjong, 2008), polyurethanes (PU) (Koerner et al, 2005;Xiong et al, 2006;Zhang et al, 2011) and polyethylene (PE; high density polyethylene -HDPE, ultrahigh molecular weight polyethylene -UHMWPE) (Ruan et al, 2003;McNally et al, 2005;Kanagaraj et al, 2007;Fonseca et al, 2011). …”

“…On the other hand, the maximum for tensile strength was occurred for the composite with 9.3 wt% of CNT, decreasing for higher concentrations, which can be ascribed to the increased frequency of localized clusters or aggregations. A study on the thermal properties of the PU/CNT composites was performed by Xiong et al (2006) and the results reveal an increase on the glass transition temperature of the composite of about 12ºC, as compared with pure PU. Results of the tensile testes also reveal an improvement of the mechanical properties of the composites as compared with pure polymer.…”

Mechanical characterization and morphology of polylactic acid /liquid natural rubber filled with multi walled carbon nanotubes

“…The excellent mechanical properties of multi walled carbon nanotubes (MWCNTs) make them ideally suited as filler for reinforcing polymer composites and also ideal reinforcing fibers for the manufacture of the next generation of fiber-matrix composite materials due to outstanding electrical, thermal and mechanical properties [16][17][18][19][20]. However, the main difficulty regarding the usage of MWCNTs as the filler in the polymer blending is achieving a good dispersion of the nanoscale filler in the composite [16,19].…”