Influence of ZnO nanoparticle filler on the properties and wear resistance of polycarbonate

Carrión, Francisco J.; Sanes, J.; Bermúdez, Marı́a-Dolores

doi:10.1016/j.wear.2007.01.016

Cited by 81 publications

(59 citation statements)

References 21 publications

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“…The wear test had to be stopped only after 20 min due to a significant wear. The studied PC specimens, however, showed unexpectedly low specific wear (w s ¼ 0.72 3 10 26 mm 3 /Nm), in comparison to the values reported in the literature [9,10]. Recently, Carrión et al [10] obtained a specific wear rate of 2.58 3 10 23 mm 3 /Nm, whereas the friction coefficient was as high as 1.02 for pure PC.…”

Section: Friction and Wear Propertiesmentioning

confidence: 47%

“…However, only a little has been reported on the tribological properties of PC nanocomposites, though results so far seem encouraging. According to Carrión et al [9,10], using small loadings of zinc oxide (ZnO) nanoparticles (\1 wt%) in a PC matrix reduces both the wear rate and frictional coefficient of the PC. This enhancement of PC tribological properties is considered attractive in commercial products such as roofs, visors, audio discs, sporting goggles, and automobile parts.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of twin‐screw‐extruder‐compounded polycarbonate nanoclay composites

Nevalainen

Vuorinen

Villman

et al. 2008

Polymer Engineering & Sci

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Polycarbonate nanocomposites were prepared by melt processing from two surface-modified montmorillonite organoclays. The intercalation spacing and degree of the dispersion were characterized with wide-angle X-ray diffraction and transmission electron microscopy, respectively. The polycarbonate nancomposites showed rather good dispersion of nanoclay, with a mixture of exfoliated, intercalated, and confined morphology. The effect of nanoclay on the mechanical response of specimens subjected to tensile and impact loading was investigated. Results demonstrated that nanocomposites based on nanoclay possess increased Young's modulus and yield strength. However, their ductility upon tensile loading is significantly affected. A transition from ductile to brittle deformation occurs at studied clay loadings. Notched impact strength experiments supported this, showing that impact strength decreases significantly as nanoclay content increases from 1 to 5 wt%, regardless how the nanoclay surface was modified. Thermal analysis demonstrated that addition of nanoclay leads to decreased thermal stability of polycarbonate suggesting, enhanced dynamics of polymer chains. Finally, the tribological properties of selected specimens were evaluated using a pin-on-disc, and the effect of nanoclay fillers on tribological properties is discussed. POLYM. ENG.

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Section: Friction and Wear Propertiesmentioning

confidence: 47%

Section: Introductionmentioning

confidence: 99%

Characterization of twin‐screw‐extruder‐compounded polycarbonate nanoclay composites

Nevalainen

Vuorinen

Villman

et al. 2008

Polymer Engineering & Sci

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“…The incorporation of small amounts of metal oxide nanoparticles into the polymer matrices was found to remarkably improve dimensional stability, and the mechanical, thermal, optical, electrical, and gas barrier properties, as well as to decrease the flammability [1][2][3][4][5][6]. PC-silica nanocomposites, prepared by various methods, attracted the attention of many institutions due to their improved transparency and mechanical properties [7,8].…”

Section: Introductionmentioning

confidence: 99%

The effect of silica nanoparticles on the morphology, mechanical properties and thermal degradation kinetics of polycarbonate

Motaung

Saladino

Luyt

et al. 2012

Composites Science and Technology

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a b s t r a c tPolycarbonate/silica nanocomposites with different silica quantities were prepared by a melt compounding method. The effect of silica amount, in the range 1-5 wt.%, on the morphology, mechanical properties and thermal degradation kinetics of polycarbonate (PC) was investigated. Clusters of silica nanoparticles were well dispersed in the polycarbonate whose structure remained amorphous. NMR results showed intermolecular interactions involving the carbonyl groups of different polymeric chains which did not affect the intramolecular rotational motions. The presence of the lowest silica content showed a decrease in the storage and loss moduli below the glass transition temperature, probably due to a plasticization effect. However, an increase in the amount of silica increased the moduli. The presence of silica in PC slightly increased the thermal stability, except for the highest silica content which showed a decrease. The activation energies of thermal degradation for the nanocomposites depended on the amount of silica and on the degree of conversion.

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“…Although ZnO is well known as antibacterial [10,11,12,13], there are no precedent on the study of antimicrobial activity in thermoplastic polymers. So far, ZnO nanoparticles have been studied as fillers in a series of polymers to prevent photo-degradation as UV-absorber [14], for thermal stabilization [15] or tribological properties [16].…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of nanocomposites: poly(amide) 6 and low density poly(ethylene) filled with zinc oxide

Droval¹,

Aranberri

Bilbao³

et al. 2008

E-Polymers

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Abstract:The antimicrobial activity against E. coli, St. aureus and A. niger of zinc oxide when blended with polymers has been measured by an applied dynamic method. Two polymers: poly(amide) 6 (PA6) and low density poly(ethylene) (LDPE) have been used as matrix. ZnO nanoparticles content as low as 1% w/w in the polymers showed great antibacterial activity but no antifungal activity. The results of bacterial slaying capability of these nanocomposites was also found to be better when zinc oxide was dispersed in PA6, where the efficiency is similar to pure ZnO particles. The composites have been investigated by means of scanning electron microscope (SEM) and differential scanning calorimeter (DSC).

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Influence of ZnO nanoparticle filler on the properties and wear resistance of polycarbonate

Cited by 81 publications

References 21 publications

Characterization of twin‐screw‐extruder‐compounded polycarbonate nanoclay composites

Characterization of twin‐screw‐extruder‐compounded polycarbonate nanoclay composites

The effect of silica nanoparticles on the morphology, mechanical properties and thermal degradation kinetics of polycarbonate

Antimicrobial activity of nanocomposites: poly(amide) 6 and low density poly(ethylene) filled with zinc oxide

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