The effect of graphene and nanoclay on properties of nitrile rubber/polyvinyl chloride blend with a potential approach in shock and vibration damping applications

Manohar, D Murali; Chakraborty, B.C.; Begum, S. Shamshath

doi:10.1007/s13726-022-01064-6

Cited by 7 publications

(5 citation statements)

References 56 publications

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“…In Figure 4(a), OMMT addition showed a somewhat higher conversion rate than the NVC73-Blank sample at same conversions, till around 40–50%, where the rate peaked, while the conversion rate was slower for the NVC73-Blank sample. It was observed by the authors in their work reported earlier 48 that OMMT increases the rubbery flexibility, and 10 phr OMMT had a lower modulus, hence better in shearing. Therefore the conversion rate was highest and also the peak was attained at the lowest conversion of all.…”

Section: Discussionmentioning

confidence: 79%

“…Except for 5 phr, all other OMMT-loaded compositions have similar observations. In the study reported by the authors previously, 48 5 phr OMMT had the best reinforcement, which could be the reason for more resistance to shearing, resulting in a low conversion rate.…”

Section: Discussionmentioning

confidence: 80%

“…This is quite evident from the widely varying ( m+n ) overall order for various fillers. It cannot also explain the higher rate constant for OMMT samples with higher overall order than the more thermally conducting fillers HAF and GRT, except for the fact that OMMT imparts more rubbery flexibility 48 and hence, more mobility of the chain segments, which might have favored the vulcanization rate.…”

Section: Discussionmentioning

confidence: 95%

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A study on nitrile rubber/polyvinyl chloride blend vulcanization kinetics with different fillers by using single isothermal rheograph

Manohar

Begum

Chakraborty

2023

Journal of Elastomers & Plastics

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An attempt has been made to establish a reasonably accurate microkinetics model for accelerated sulfur vulcanization of commonly used acrylonitrile rubber/polyvinyl chloride (NBR/PVC 70/30) blend (NVC73) from a single, isothermal rheograph data of torque versus time. The effect of three different types of fillers, such as pre-exfoliated organically modified montmorillonite (OMMT) clay, graphite (GRT) powder, and high abrasion furnace (HAF) carbon black (CB), were studied. The kinetics study was done with six solid-state reaction kinetics models. Among these, Sestak-Berggren (SB) equation was found to be the best model for the present compositions. The SB kinetic rate expressions were evolved after several iterations using empirical values of autocatalytic and non-autocatalytic orders of ‘ m’ and ‘ n’, respectively. The gum vulcanizate and OMMT clay-loaded compositions were found to have comparable conversion function f (α) and almost identical reaction rate constants at 150°C, under isothermal conditions. In comparison, HAF CB and GRT rate expressions differed from clay-loaded compositions. The validity of the reaction rate equations obtained was confirmed by comparison of plots for experimental and derived conversions with time.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 95%

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A study on nitrile rubber/polyvinyl chloride blend vulcanization kinetics with different fillers by using single isothermal rheograph

Manohar

Begum

Chakraborty

2023

Journal of Elastomers & Plastics

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“…Nitrile butadiene rubber (NBR) is an organic polymer elastic compound with superior abrasion resistance, processability, and excellent oil resistance [ 1 , 2 , 3 , 4 ]. Hence, NBR materials are widely used in the manufacture of some seals, fuel hoses, and other oilfield rubber products [ 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Systematic Investigation of the Degradation Properties of Nitrile-Butadiene Rubber/Polyamide Elastomer/Single-Walled Carbon Nanotube Composites in Thermo-Oxidative and Hot Oil Environments

Liu,

Wang,

Ren

et al. 2024

Polymers

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The physical blending method was used in order to prepare nitrile-butadiene rubber/polyamide elastomer/single-walled carbon nanotube (NBR/PAE/SWCNT) composites with better thermal-oxidative aging resistance. The interactions between SWCNTs and NBR/PAE were characterized using the Moving Die Rheometer 2000 (MDR 2000), rheological behavior tests, the equilibrium swelling method, and mechanical property tests. The 100% constant tensile stress and hardness of NBR/PAE/SWCNT composites increased from 2.59 MPa to 4.14 MPa and from 62 Shore A to 69 Shore A, respectively, and the elongation decreased from 421% to 355% with increasing SWCNT content. NBR/PAE/SWCNT composites had improved thermal-oxidative aging resistance due to better interactions between SWCNTs and NBR/PAE. During the aging process, the tensile strength and elongation at break decreased with the increase in aging time compared to the unaged samples, and the constant tensile stress gradually increased. There was a more significant difference in the degradation of mechanical properties when aged in a variety of oils. The 100% constant tensile stress of NBR/PAE/SWCNT composites aged in IRM 903 gradually increased with aging time while it gradually decreased in biodiesel. The swelling index gradually increased with increasing SWCNT content. Interestingly, the swelling index of the composites in cyclohexanone decreased with the increase in SWCNT content. The reasons leading to different swelling behaviors when immersed in different kinds of liquids were investigated using the Hansen solubility parameter (HSP) method, which provides an excellent guide for the application of some oil-resistant products.

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“…Our review extends beyond characterization to explore practical applications. Despite the broader potential of PVC-clay nanocomposites in electromagnetic interference shielding [ 49 ], cable sheath application [ 50 ], oil sorption [ 51 ], shock and vibration damping applications [ 52 ], and heterogeneous bipolar membranes [ 53 ], our focus within this review is automotive industry, packaging, biomedicine, water purification, and building/construction, aiming to offer a broader perspective on the fascinating world of polymer clay nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

Clay-reinforced PVC composites and nanocomposites

Abdollahi Boraei,

Bakhshandeh,

Mohammadzadeh

et al. 2024

Heliyon

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The effect of graphene and nanoclay on properties of nitrile rubber/polyvinyl chloride blend with a potential approach in shock and vibration damping applications

Cited by 7 publications

References 56 publications

A study on nitrile rubber/polyvinyl chloride blend vulcanization kinetics with different fillers by using single isothermal rheograph

A study on nitrile rubber/polyvinyl chloride blend vulcanization kinetics with different fillers by using single isothermal rheograph

Systematic Investigation of the Degradation Properties of Nitrile-Butadiene Rubber/Polyamide Elastomer/Single-Walled Carbon Nanotube Composites in Thermo-Oxidative and Hot Oil Environments

Clay-reinforced PVC composites and nanocomposites

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