Role of multiwalled carbon nanotubes (MWCNTs) on rheological, thermal and electrical properties of PC/ABS blend

Rostami, Amir; Masoomi, Mahmood; Fayazi, Mohammad Javad; Vahdati, Mehdi

doi:10.1039/c5ra04043d

Cited by 106 publications

(90 citation statements)

References 54 publications

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“…One method, which has been successful in toughening notch-sensitive polymers such as PC, is rubber toughening. 3,[20][21][22][23] However, these problems can be partly solved by blending PC with a miscible elastomer, decreasing the glass transition temperature and processing temperature. Several studies have been carried out to develop effective toughening methods to improve the impact strength, processability and solvent resistance of PC.…”

Section: Introductionmentioning

confidence: 99%

Excellent impact strength of ethylene-methyl acrylate copolymer toughened polycarbonate

Bagotia

Singh²,

Choudhary

et al. 2015

RSC Adv.

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aThe intrinsic notch sensitivity of polycarbonate (PC) demands improvement in the notched impact strength for a variety of applications. Blends of PC/ethylene-methyl acrylate (EMA) copolymer of different compositions were prepared by melt blending using a co-rotating twin-screw extruder. The notched izod impact strength of PC/EMA blends showed a positive blending effect and increased 381% with incorporation of a very little amount of EMA (5%) with a marginal decrease in the tensile strength of PC.Tensile data was also analyzed by using predictive theories. Incorporation of EMA decreases the glass transition temperature of PC and facilitates its processing. Scanning electron micrographs of cryogenically fractured samples after etching were used to study the phase structure. A two phase morphology was seen with a fine dispersion of rubber granules in the PC matrix. On the other hand, the impact fractured surface of PC/EMA blends indicated debonding of EMA particles, leaving hemispherical bumps, indicating inadequate interfacial adhesion between PC and EMA.

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Section: Introductionmentioning

confidence: 99%

Excellent impact strength of ethylene-methyl acrylate copolymer toughened polycarbonate

Bagotia

Singh²,

Choudhary

et al. 2015

RSC Adv.

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“…Required amounts of MWCNT, PC, and ABS were placed in a vacuum oven at 90 °C for 24 hr to remove any moisture. The nominal process temperature for PC/ABS blends, especially in which PC is the matrix, is commonly between 230 and 280 °C . Nanocomposite samples were prepared through melt compounding of PC and ABS with a blend ratio of PC/ABS = 70/30 w/w and the selected concentration of CNT (0, 1, 2, and 4 wt%) by using an internal mixer (Brabender Plasti‐Corder W50 equipped with a Brabender type rotor; Brabender Co., Duisburg, Germany) at 60 rotations/min and 260 °C followed with a co‐rotating twin screw extruder (Brabender) for better dispersion.…”

Section: Methodsmentioning

confidence: 99%

“…The tensile strength and elastic modulus of multiwall carbon nanotubes (MWCNTs) are in the range of 50–100 GPa and 1.4 TPa, respectively . In this respect, PC/ABS/MWCNT nanocomposites have been studied in some papers. In our previous work, we investigated the rheological behavior, dynamic mechanical thermal analysis, and electrical resistivity of PC/ABS/MWCNT nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Investigation of polycarbonate/acrylonitrile butadiene styrene/multiwall carbon nanotube nanocomposites under impact loading

Taheri

Esfahani

Nakhlband

et al. 2016

Polymers for Advanced Techs

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In this study, the effect of polycarbonate (PC)/acrylonitrile butadiene styrene (ABS)‐reinforced multiwall carbon nanotube (MWCNT) nanocomposites under a high‐velocity impact was investigated. PC/ABS (70/30 w/w)/MWCNT nanocomposites containing 1, 2, and 4 wt% were used to manufacture samples for this study. The samples were fabricated in sheet form with 100 × 100 mm dimensions and tested by gas gun for high‐velocity impact tests. The experimental results indicate that the energy absorption, limit velocity, and tensile modulus of the nanocomposite samples increased by approximately 121%, 52%, and 103% for the PC/ABS (70/30 w/w)/2 wt% MWCNT samples respectively. These results were confirmed by a transmission electron microscopy analysis test that was conducted for the state of dispersion of MWCNTs in the nanocomposite samples. The transmission electron microscopy results show that the best morphological structure of carbon nanotube at the interface of PC and ABS is that for the nanocomposite containing 2 wt% MWCNTs, which led to improved interface of the nanocomposites and higher mechanical properties. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Highest electrical conductivities around 7.7 and 7.0 S/m were obtained for the nanocomposite foams with porosities of 24% and 33%, respectively. Rostami et al studied the effect of MWCNTs on the thermal and electrical properties of PC/ABS blend prepared using simultaneous melt compounding. The rapid decrease (approximately 10 9 orders) in the electrical resistivity at 0.5 wt% MWCNTs loading indicated the formation of an interconnected structure of the MWCNTs in the PC matrix.…”

Section: Pc/cnt Nanocompositesmentioning

confidence: 99%

“…The PC/MWCNT composites showed EMI SE about −16 dB at 5 wt% MWCNT loading. Rostami et al performed a study on the effect of MWCNTs on the electrical and EMI shielding properties of PC/ABS 75/25 blend prepared by simultaneous melt blending. The PC/ABS/MWCNT nanocomposites showed the EMI SE of 2.3 dB at 1.5 wt% MWCNT loading.…”

Section: Pc/cnt Nanocompositesmentioning

confidence: 99%

A review on the mechanical, electrical and EMI shielding properties of carbon nanotubes and graphene reinforced polycarbonate nanocomposites

Bagotia

Choudhary

Sharma

2018

Polymers for Advanced Techs

114

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Recently, it has been found that carbon nanotubes (CNTs) and graphene could prove to be the most promising carbonaceous fillers in polymers nanocomposites field because of their better structural and functional properties. Their uniform dispersion in polymer matrix leads to significant improvements in their several properties. This paper reviews the effect of nanofillers, ie, CNTs, derivatized CNTs, and graphene on the polycarbonate nanocomposite and its application in aerospace, automobile, sports, electronic sectors, and various industries. The comparative analysis of carbon‐based fillers on the different properties of polycarbonate nanocomposites is also included.

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Role of multiwalled carbon nanotubes (MWCNTs) on rheological, thermal and electrical properties of PC/ABS blend

Abstract: Investigation of MWCNTs localization and its impact on rheological, electrical, and thermal properties of PC/ABS(75/25)/MWCNTs blend nanocomposites.

Cited by 106 publications

References 54 publications

Excellent impact strength of ethylene-methyl acrylate copolymer toughened polycarbonate

Excellent impact strength of ethylene-methyl acrylate copolymer toughened polycarbonate

Investigation of polycarbonate/acrylonitrile butadiene styrene/multiwall carbon nanotube nanocomposites under impact loading

A review on the mechanical, electrical and EMI shielding properties of carbon nanotubes and graphene reinforced polycarbonate nanocomposites

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