Thermal behavior of MWNT-reinforced thermoplastic natural rubber nanocomposites

Tarawneh, Mou’ad A.; Ahmad, Sahrim; Rasid, Rozaidi; Yahya, Saadiah; Lau, Kin-tak; Kong, Ing; Noum, Se Yong Eh

doi:10.1177/0731684410391512

Cited by 14 publications

(11 citation statements)

References 19 publications

(20 reference statements)

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“…As a result of this unique arrangement, it not only display an improvement in mechanical response of the material, but also other properties such as gas barrier, fire resistance, thermal, and electrical conductivities. CNTs have been widely used with different kinds of polymers to obtain beneficial mechanical and physical properties for recent years . The results showed that CNTs could effectively improve elastic modulus, stress at a defined elongation, abrasion resistance and electrical properties compared to the CB additive.…”

Section: Introductionmentioning

confidence: 99%

Effect of coal gangue/carbon black/multiwall carbon nanotubes hybrid fillers on the properties of natural rubber composites

Chen

et al. 2015

Polymer Composites

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The objective of this study was to investigate three kinds of filler with completely different morphology on mechanical properties of natural rubber (NR). Coal gangue (CG) are derived from natural deposits are composed principally by illite and quartz. CG, carbon black (CB), and multiwalled carbon nanotube (CNT) were used as hybrid fillers in NR. CNTs were dispersed into NR latex by ultrasonic irradiation and then the mixed latex were coagulated to obtain the CNTs/NR masterbatch, then mechanical mixing method was employed to prepare the CG/CB/CNTs/NR composites. The addition of CG, CB, and CNTs to NR was varied with the total filler loading fixed at 35 phr. The mechanical properties of NR composites were studied in terms of tensile and dynamic mechanical analysis (DMA). The results showed that the tensile strength and modulus 300% (M300) of all hybrid samples were higher than the composites only loaded CG; and the highest tensile strength of NR loaded with hybrid fillers achieved at sample of loading amount of CG 17.5, CB 15.5, and CNTs 2 phr, whose M300 and elongation at break was obviously higher than that of only CB loaded NR composites; The inclusion CG improves the tensile strength of NR without the sacrifice of its extensibility, while CB and CNTs brings together the enhancement in the ultimate strength and the reduction in the extensibility. DMA results revealed that the existence of CG can improve the dispersion of CB and CNTs in NR matrix. POLYM. COMPOS., 37:3083–3092, 2016. © 2015 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Effect of coal gangue/carbon black/multiwall carbon nanotubes hybrid fillers on the properties of natural rubber composites

Chen

et al. 2015

Polymer Composites

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“…Figure 8C and D reveals the interfacial interactions, dispersion and adhesion of the MWCNTs within the matrix, representating pulled nanotubes (highlighted by white arrows) in HNC2. Strong interfacial adhesion is a key factor for establishing efficient heat transfer inside the matrix (TPNR); this fact is supported by the observation that the greater heat transfer efficiency of the MWCNTs enhanced the thermal properties of TPNR [35,38].…”

Section: Morphological Examinationmentioning

confidence: 99%

Hybridization of a thermoplastic natural rubber composite with multi‐walled carbon nanotubes/silicon carbide nanoparticles and the effects on morphological, thermal, and mechanical properties

et al. 2018

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The thermal conductivity and mechanical performance of a hybrid multi‐walled carbon nanotubes/silicon carbide (MWCNTs/SiC)‐reinforced thermoplastic natural rubber (TPNR) nanocomposite were investigated. TPNR was fabricated from polypropylene, natural rubber (NR) and liquid NR at a volume ratio of 70:20:10, respectively. The Young's modulus, the tensile strength, and the storage and loss modulus of the nanocomposites with a single filler of MWCNTs or SiC were enhanced compared with those of neat TPNR. The greatest improvements in these properties were achieved at a composition of 1.5 wt% SiC‐1.5 wt% MWCNTs‐reinforced nanocomposite. In addition, the thermal conductivity and specific heat capacity of the nanocomposites, determined using a laser flash technique, were improved in the 3 wt% SiC‐reinforced nanocomposite sample relative to those of the pure sample and the other reinforced nanocomposites. Based on these findings, MWCNTs and SiC could serve as suitable percolated networks of hybrid reinforcement fillers to achieve optimal thermal and mechanical properties in the TPNR matrix. POLYM. COMPOS., 40:E695–E703, 2019. © 2018 Society of Plastics Engineers

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“…Many previous studies have focused on the dispersion of CNTs and the TR, which were regarded as the major factors affecting the thermal conductivity of CNT/polymer composites . Several approaches have been studied in order to improve the dispersion of CNTs in polymer matrix, such as addition of surfactants as well as various physical methods, such as high‐power ultrasonic stirring and rapid mechanical mixing with high strength . Although these methods can improve the dispersion of CNTs in polymer matrix without decreasing the thermal conductivity of CNTs, they cannot improve the weak interfacial interaction (Van der Waals' force) between CNTs and polymer matrix, which limits phonon transfer in CNT/polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Improving thermal conductivity and shear strength of carbon nanotubes/epoxy composites via thiol‐ene click reaction

Bao

Yan

Qin

et al. 2016

J of Applied Polymer Sci

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This study investigates the effect of the thiol-ene click reaction on thermal conductivity and shear strength of the epoxy composites reinforced by various silane-functionalized hybrids of sulfhydryl-grafted multi-walled carbon nanotubes (SH-MWCNTs) and vinyl-grafted MWCNTs (CC-MWCNTs). The results of Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, thermal gravimetric analysis (TGA), and transmission electron microscopy (TEM) show that the sulfhydryl groups and vinyl groups are successfully grafted onto the surface of MWCNTs, after treatment of MWCNT with triethoxyvinylsilane and 3-mercaptopropyltrimethoxysilane, respectively. Scanning electron microscopy (SEM), HotDisk thermal constant analyzer (HotDisk), optical microscope, and differential scanning calorimetry (DSC) are used to characterize the resultant composites. It is demonstrated that the hybrid of 75 wt % SH-MWCNTs and 25 wt % CC-MWCNTs has better dispersion and stability in epoxy matrix, and shows a stronger synergistic effect in improving the thermal conductivity of epoxy composite via the thiol-ene click reaction with 2,2 0 -azobis(2-methylpropionitrile) as thermal initiator. Furthermore, the tensile shear strength results of MWCNT/epoxy composites and the optical microscopy photographs of shear failure section indicate that the composite with the hybrid MWCNTs has higher shear strength than that with raw MWCNTs. V C 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44579.

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Thermal behavior of MWNT-reinforced thermoplastic natural rubber nanocomposites

Cited by 14 publications

References 19 publications

Effect of coal gangue/carbon black/multiwall carbon nanotubes hybrid fillers on the properties of natural rubber composites

Effect of coal gangue/carbon black/multiwall carbon nanotubes hybrid fillers on the properties of natural rubber composites

Hybridization of a thermoplastic natural rubber composite with multi‐walled carbon nanotubes/silicon carbide nanoparticles and the effects on morphological, thermal, and mechanical properties

Improving thermal conductivity and shear strength of carbon nanotubes/epoxy composites via thiol‐ene click reaction

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