Pursuit of electroconducting thermoplastic vulcanizates: activated charcoal-filled polypropylene/ethylene–propylene–diene monomer blends with upgraded electrical, mechanical and thermal properties

Sarfraz, Muhammad; Rehman, Zia Ur; Ba-Shammakh, M.

doi:10.1007/s00289-018-2482-z

Cited by 12 publications

(8 citation statements)

References 33 publications

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“…This percolation threshold is that point at which a sharp increase in conductivity is observed due to formation of conductive pathways. Above this percolation limit a decline in conductivity is observed [25,26]. For composites manufactured by using FeCl 3 as oxidant electrical conductivity was increased from 2.6×10 −14 (for unfilled) to 1.8×10 −6 (5 wt%).…”

Section: Antistatic Testingmentioning

confidence: 98%

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Gill

Ehsan

Irfan

et al. 2020

Mater. Res. Express

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In current study polyaniline filled polypropylene (PP/PAni) conductive composites were prepared by a novel premixing technique followed by melt mixing. The PP/PAni composites were also compatibilized by addition of polypropylene grafted maleic anhydride. Polyaniline was prepared by using ammonium per sulphate and ferric chloride as single oxidants. Effects of oxidizing agents (of polyaniline) on composites were studied by morphological, electrical and mechanical properties on composites. FTIR analysis was also carried out to study the nature of interactions and possible bonding between polyaniline and polypropylene matrix. Thermal analysis was carried out to study the thermal stability of composites. Morphological analysis revealed that the proposed premixing technique was quite successful in depositing polyaniline to polypropylene matrix. This analysis was also supported by the results of electrical conductivity where formation of conductive pathways were observed by addition of polyaniline thus converting insulating nature of polypropylene to a semiconducting one.

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Section: Antistatic Testingmentioning

confidence: 98%

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Gill

Ehsan

Irfan

et al. 2020

Mater. Res. Express

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“…29 The FTIR spectra of native WPE/WEPDM which are displayed in Figure 2(a) revealed the absorption band at 770 cm À1 can be related to the C-H group of EPDM. 30 Moreover, the peaks noticed at 1350, 1500 and 1630 cm À1 signify C-C and C=C stretching vibrations of EPDM structure. 30 Also, it is observed that the bands at 2920 and 1880 cm À1 are characteristics of the stretching vibration -CH groups existing in the WPE/WEPDM blend.…”

Section: Ftir and Xrd Investigationsmentioning

confidence: 99%

Novel electromagnetic interference shield developed by gamma irradiation of strengthened WPE/WEPDM thermoplastic elastomer With carbon nanotubes

Fathy

Elnaggar

Sharaf

2022

Journal of Thermoplastic Composite Materials

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Carbon nanotubes (CNTs) have established wide attention as strengthened fillers because of their excellent several characters. Nano polymers based on thermoplastic elastomer composed of waste polyethylene (WPE)/Waste ethylene propylene diene monomer (WEPDM) blended equally 50/50 wt. % and strengthened with different concentrations of CNT (0.1, 0.3, and 0.5%) were fabricated via melt mixing. The prepared specimens were exposed to various gamma radiation doses, namely 50 and 100 kGy to evaluate the impact of radiation on the Nano polymers structure. FTIR and XRD were used to track the structure and crystallinity changes of thermoplastic elastomer with CNT filling. Mechanical features including tensile strength (TS), elongation at break (E%), modulus of elasticity (EM) and hardness (Shore D) of the unirradiated and irradiated samples were evaluated. Furthermore, the dynamic mechanical properties named storage (E′) and loss modulus as well as tan delta (δ) of the fabricated specimens were measured. TGA and also DSC monitored the thermal decomposition and the melting point alterations caused by CNT reinforcement. Electromagnetic Interference (EMI) was studied for all fabricated samples as an application of shielding for radio frequency signals. In general, all the studied parameters revealed improvements of thermoplastic elastomer properties via CNT interference. Subsequent reinforcement of CNT concentrations into WPE/WEPDM produced higher shielding for radio frequency signals. Furthermore, applied gamma radiation doses improved the shielding properties of the fabricated nanocomposites.

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“…The largest use of the material is as a pigment for paints, replacing poisonous lead white, food additives and even in manufacturing of photovoltaic cells. [8,17,18] Titanium dioxide is also shown to have electrically insulative properties, with dielectric constants reaching 100. in the usage of nanofillers such as graphene [6,7] and carbon nanotubes [4,21] in a variety of applications such as bioengineering and aeronautics.…”

Section: Ethylene Propylene Diene Monomer (Epdm)mentioning

confidence: 99%

The study of thermal & mechanical properties of EPDM compounded with TiO₂

Sin¹,

Ahmad²,

Hoon³

et al. 2023

J. Phys.: Conf. Ser.

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This study attempts to investigate the usage of titanium dioxide as a viable nanofiller for fabrication of ethylene propylene diene monomer (EPDM) nanocomposites used as thermal insulators. For this study, three different filler loadings (1, 3, 5 % wt.) of titanium dioxide nanofiller are incorporated into the polymer matrix to form the nanocomposites. The thermal and mechanical characteristics of the resulting nanocomposites were compared to EPDM which has not been compounded with TiO2 nanofiller (neat). The thermal characteristics of the polymers were tested using thermogravimetric analysis. Mechanical parameters of the polymers were evaluated via tensile testing with dog-bone specimens according to ASTM D638 standards. Thermal performance of TiO2-impregnated EPDM nanocomposites showed definite improvements, with 1% wt. nanofiller loading having 1 °C improvement over neat EPDM at 5% weight loss and 1 °C improvement at 50% weight loss respectively. Tensile testing showed lower elongation at break (EB) and higher tensile strength (TS) characteristics for nanocomposites with 1% wt. & 3% wt. nanofiller loading compared to neat EPDM. At 5% wt. nanofiller loading, higher EB and lower TS readings were recorded for the nanocomposite, likely resulting from uneven nanoparticle distribution during sample fabrication due to nanofiller particle agglomeration.

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Pursuit of electroconducting thermoplastic vulcanizates: activated charcoal-filled polypropylene/ethylene–propylene–diene monomer blends with upgraded electrical, mechanical and thermal properties

Cited by 12 publications

References 33 publications

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Novel electromagnetic interference shield developed by gamma irradiation of strengthened WPE/WEPDM thermoplastic elastomer With carbon nanotubes

The study of thermal & mechanical properties of EPDM compounded with TiO₂

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Pursuit of electroconducting thermoplastic vulcanizates: activated charcoal-filled polypropylene/ethylene–propylene–diene monomer blends with upgraded electrical, mechanical and thermal properties

Cited by 12 publications

References 33 publications

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Synergistic augmentation of polypropylene composites by hybrid morphology polyaniline particles for antistatic packaging applications

Novel electromagnetic interference shield developed by gamma irradiation of strengthened WPE/WEPDM thermoplastic elastomer With carbon nanotubes

The study of thermal & mechanical properties of EPDM compounded with TiO2

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The study of thermal & mechanical properties of EPDM compounded with TiO₂