Polyvinylchloride‐Single‐Walled Carbon Nanotube Composites: Thermal and Spectroscopic Properties

Chipara, Mircea; Cruz, Jéssica Reco; Vega, Edgar R.; Alarcon, Jorge A.; Mion, Thomas; Chipara, Dorina; Ibrahim, Elamin; Tidrow, Steven C.; Hui, David

doi:10.1155/2012/435412

Cited by 22 publications

(10 citation statements)

References 36 publications

(41 reference statements)

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“…It shows that there is a complex thermal degradation for our composites. This phenomenon also was reported by Chipara et al . It is probably due to the absorption of the chlorine on the SWCNT.…”

Section: Resultssupporting

confidence: 84%

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Zanjanijam

Bahrami

Khiadani

2014

Vinyl Additive Technology

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Composites of polyvinylchloride (PVC) with single wall carbon nanotubes (SWCNTs) were prepared by plastisol curing. Scanning electron microscopy (SEM) observations revealed that appropriate dispersion of the nanotubes was achieved. The mechanical properties showed that SWCNT improved the Young's modulus and tensile strength of the PVC. The composites have higher elongation at break and toughness as well. By comparing the mechanical properties of the composites, it is found that there is a critical SWCNT loading (about 1 wt%) below which the tensile properties increase with increasing nanofiller concentration. For the composites containing 0.25–0.75 wt% of SWCNT, this situation was observed, whereas for a sample with 1 wt% SWCNT, the mechanical properties decreased due to the agglomeration of the nanotubes. Thermogravimetric analysis indicated that the SWCNT increased T5%, T10%, T50%, Tonset, and Tmax and decreased weight loss in the degradation process of the PVC. In addition, by adding SWCNT to the polymer, residual mass at 600°C increased significantly. These results are advantages for the applications of the polymer in which high mechanical properties, including high tensile modulus and toughness, and good thermal properties are needed. J. VINYL ADDIT. TECHNOL., 22:128–133, 2016. © 2014 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 84%

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Zanjanijam

Bahrami

Khiadani

2014

Vinyl Additive Technology

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“…The particular behaviour was observed upon heating when long polymeric chains broke down into small fragments resulting in their physical entrapment into filler particles, making it difficult for them to be decomposed further, thus aiding an increased thermal stability of the Cu–Al 2 O 3 /PVC composites . Similar trend is seen in previously reported data where thermal stability was enhanced due to filler incorporation, hindering the segmental movement of polymer chains …”

Section: Resultssupporting

confidence: 79%

Design and fabrication of electro‐conductive polymer nanocomposites with mechanical and thermal resistance

Batool

Nadeem

Gill

et al. 2018

Polymer International

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The commencement of the industrial revolution paved the way for the fabrication of flexible polymers with high-strength metalloceramics as novel materials of all kinds. Fabricating metal-ceramic/polymer conductive composites is one such dimension followed for the present research work making use of the properties of the three components. Electroless deposition, for permanent metallic coating, was performed to coat Al 2 O 3 with metallic Cu followed by the inclusion of the Cu-Al 2 O 3 filler into a poly(vinyl chloride) (PVC) matrix. X-ray diffraction and energy-dispersive X-ray studies predicted a prominent growth of metallic Cu crystallites onto Al 2 O 3 with an increased average size and variation in elemental composition, respectively, when compared to pristine Al 2 O 3 . Morphological behaviour via scanning electron microscopy also envisioned uniform Cu coating onto Al 2 O 3 and a homogeneous dispersion throughout the polymer matrix. When incorporated into PVC, electrical conductivity analysis highlighted a distinct variation in composite phases from insulating (7.14 × 10 −16 S cm −1 ) to semiconducting behaviour (8.33 × 10 −5 S cm −1 ) as a function of Cu-Al 2 O 3 filler. Mechanical behaviour (tensile strength, Young's modulus and elongation at break) and thermal properties of the prepared composites also indicated a substantial improvement in material strength with Cu-Al 2 O 3 incorporation. The enhanced electrical conductivity along with improved thermomechanical status with significant filler-matrix interaction permits the potential usage of such novel composites in a range of state-of-the-art semiconducting electronic devices.

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“…These filler particles restrain the thermal motion of PVC molecular chains by preventing the segmental movements of the polymer chains [30]. The values of T g increased persistently and lead to the enhancement of thermal stability of the PVC/FA composites.…”

Section: Dsc Resultsmentioning

confidence: 99%

Ductility and Flame Retardancy Enhancement of PVC by Nanostructured Fly Ash

Patil

Mahendran

Selvakumar

et al. 2016

Silicon

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Fly ash (FA) obtained from a coal-fired local thermal power station was converted into a nanostructured material by mechano-chemical activation using a high energy planetary ball mill. Contact angle measurements and FTIR spectroscopy confirmed the surface modification of mechano-chemically activated FA (MCA-FA). Subsequently, a solution casting method was used to prepare poly(vinyl chloride) (PVC) matrix composites with varying amounts of fresh FA and MCA-FA. Mechanical testing results of the composites revealed that incorporation of fresh FA in PVC resulted in a higher tensile strength with brittle failure; addition of MCA-FA to PVC resulted in higher elongation at break values while retaining the ductility of the PVC. We have proposed a plausible mechanism explaining the influence of fresh FA and MCA-FA on the mechanical behavior of these composites. As fresh FA and MCA-FA contain basic oxide materials, they tend to improve the fire retardancy of PVC even at a very small loading. Overall, the Electronic supplementary material The online version of this article (

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Polyvinylchloride‐Single‐Walled Carbon Nanotube Composites: Thermal and Spectroscopic Properties

Cited by 22 publications

References 36 publications

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Design and fabrication of electro‐conductive polymer nanocomposites with mechanical and thermal resistance

Ductility and Flame Retardancy Enhancement of PVC by Nanostructured Fly Ash

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