Effect of zinc oxide nanoparticles on isothermal cure kinetics, morphology and mechanical properties of EPDM rubber

Akhlaghi, Shahin; Kalaee, Mohammadreza; Mazinani, Saeedeh; Jowdar, Effat; Nouri, Ali; Sharif, Alireza; Sedaghat, Navid

doi:10.1016/j.tca.2011.10.015

Cited by 35 publications

(14 citation statements)

References 22 publications

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“…[17][18][19] The synthesized ZnO nanoparticles were often used as a curing agent with magnesium oxide (MgO) for vulcanization. It reacted with rubber molecular chain creating ether bond so as to completely crosslink in rubber as shown in figure 5.…”

Section: Cure Characteristics and Mooney Viscosity Of The Cr Foammentioning

confidence: 99%

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

Suntako

2015

Bull Mater Sci

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ZnO nanoparticles were synthesized by a precipitation method in aqueous media from zinc nitrate hexahydrate and sodium hydroxide. The synthesized ZnO nanoparticles exhibited a crystalline structure with hexagonal structure of the wurtzite. The morphology of the synthesized ZnO nanoparticles presented a spherical shape with the average primary size of 54.53 nm and the specific surface area of 20.28 m 2 g −1 . The effect of the synthesized ZnO nanoparticles by the precipitation method as a crosslinking agent for chloroprene rubber foam (CR foam) on cure characteristics, mechanical properties and morphologies was investigated. The aim of this study is to vary the synthesized ZnO nanoparticles' level in the range of 0.5-5 parts per hundred parts of rubber (phr) compared with the conventional ZnO at 5 phr. The rheological characterization showed that the maximum torque (M H ), the minimum torque (M L ), the differential torque (M H -M L ) and Mooney viscosity increased with the increase in synthesized ZnO nanoparticles' content, whereas the optimum cure time (t 90 ) and scorch time (T 5) decreased. On the other hand, the mechanical properties such as hardness, tensile strength and specific gravity were improved. For CR foam, the results compared to the amount of conventional ZnO, only 60 wt% (3 phr) nano-ZnO was enough to obtain similar cure characteristics and mechanical properties. The synthesized ZnO nanoparticles showed the mechanical properties higher than conventional ZnO because of small particle size and large specific surface area which led to the increase in the degree of crosslinking.

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Section: Cure Characteristics and Mooney Viscosity Of The Cr Foammentioning

confidence: 99%

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

Suntako

2015

Bull Mater Sci

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“…The optimal loading capacity of nanoZnO was 1 wt%; this value was ascribed to high activity by virtue of the high specic surface area of nanoZnO. Therefore, nanoZnO particles could more effectively adsorb stearic acid and accelerant into the natural rubber matrix, 54 improve the generation efficiency of crosslinking precursors, greatly increase the reaction probability between crosslinking precursor and rubber chain, 55 and elevate the vulcanization rate. This nding fully certies that nanoZnO has a better vulcanization-promoting effect than traditional ZnO.…”

Section: Vulcanization Behaviors Of Rubber Composite Materialsmentioning

confidence: 99%

A functional modified graphene oxide/nanodiamond/nano zinc oxide composite for excellent vulcanization properties of natural rubber

2020

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“…The vibrational mode at 1498cm -1 originates from amide linkage. A strong peak at 558cm -1 are due to the metallic bond Ag+ (20)(21)(22) .…”

Section: Ftir Analysismentioning

confidence: 99%

Photocatalytic and antibacterial activity of silver nanoparticles (AgNPs) using palm (Borassus flabellifer L.) water ( Pathaneer )

Thirumagal¹

2020

IJST

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To evaluate the photocatalytic and antibacterial activity of a biologically synthesized AgNPs mediated by palm (Borassus flabellifer) water against human pathogens. It is a potential candidate for preparing nanomedicine for constipation. 1mM of AgNO 3 is prepared and mixed with an appropriate volume of Pathaneer and the reaction was made up to 100ml. The AgNPs were characterized by X-ray diffraction, FT-IR, UV-Vis analysis and HRTEM. The photocatalytic property and the antibacterial activity were carried out for the prepared AgNPs. The powder X-ray diffraction investigation reveals the FCC structure of AgNPs with a crystalline size of 27nm and a lattice strain of 0.4283. FT-IR confirms the presence of Ag + from UV-Vis, the energy band gap was found to be 2.92 eV. HRTEM was used to calculate the diameter of AgNPs as 5-10nm. In Borassus flabellifer, the percentage degradation state of AgNPs was estimated as 87% at 180 minutes. AgNPs derived from Pathaneer have a large impact as antibacterial in the biomedical field. Since the aggressive chemicals are not involved in the preparation of AgNPs, it is used as an alternated biomedicine to reduce the toxicity of AgNPs and the photo degradation efficiency is high hence suitable for solar cells as well.

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Effect of zinc oxide nanoparticles on isothermal cure kinetics, morphology and mechanical properties of EPDM rubber

Cited by 35 publications

References 22 publications

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam

A functional modified graphene oxide/nanodiamond/nano zinc oxide composite for excellent vulcanization properties of natural rubber

Photocatalytic and antibacterial activity of silver nanoparticles (AgNPs) using palm (Borassus flabellifer L.) water ( Pathaneer )

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