Transport of substituted benzenes through nitrile rubber/natural rubber blend membranes

Mathai, Asha Elizabeth; Singh, Rajpal; Thomas, Sabu

doi:10.1016/s0376-7388(01)00700-1

Cited by 54 publications

(20 citation statements)

References 28 publications

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“…In other words, the present study has shown a dependence of diffusivity on the molecular mass of solvents. This is in contrast to the findings of some authors [30,32] who reported an inverse dependence of D on the molecular weight of solvents. An increase in the diffusion coefficient of some polymers with increases in the molecular mass of penetrant molecules has been reported in the literature [7,8].…”

Section: The Diffusion Coefficient (D)contrasting

confidence: 99%

“…The table shows that the sorption coefficient decreased with increase in snail shell powder content in the rubber vulcanizate at any temperature, solvent, and filler particle size considered. Mathai et al [32] who studied the transport of substituted benzene through nitrile rubber/natural rubber blend membranes found that the sorption coefficient value decreased with increase in nitrile rubber content. Table 3 also shows that the sorption coefficient was highest in benzene, followed by toluene, and then xylene for any particular temperature and filler particle size considered.…”

Section: Sorption Coefficient (S)mentioning

confidence: 99%

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Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Igwe

Ezeani

2012

International Journal of Polymer Science

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The transport of three aromatic solvents (benzene, toluene and xylene) through snail shell powder filled natural rubber was studied at 313, 333, and 353 K by conventional weight-gain experiments. The effects of snail shell powder content, particle size, nature of solvent, and temperature on the transport characteristics of natural rubber were determined. The estimated Arrhenius activation energies for the processes of sorption, diffusion, and permeation showed that the activation energies were highest in xylene at all the filler contents investigated. The calculated enthalpies, and entropies of sorption were all positive for the solvents investigated. Similarly, the change in the estimated free energies of sorption were all positive; an indication of the non-spontaneity of the solubility of snail shell powder filled natural rubber in the aromatic solvents at 313 k.

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Section: The Diffusion Coefficient (D)contrasting

confidence: 99%

Section: Sorption Coefficient (S)mentioning

confidence: 99%

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Igwe

Ezeani

2012

International Journal of Polymer Science

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“…Moreover, the study of diffusion, sorption and permeation of blend systems provides valuable information about the nature of blend [5][6][7][8][9][10]. The transport properties of various rubber/rubber, thermoplastic elastomers, interpenetrating networks and natural fibre and particulate filled blends and composites have been studied from this laboratory [11][12][13][14][15][16][17][18][19][20][21]. The diffusion process is a kinetic parameter depending on the free volume within the material, segmental mobility of polymer chains and the size of the penetrant molecule [22].…”

Section: Introductionmentioning

confidence: 99%

Diffusion and transport through nanocomposites of natural rubber (NR), carboxylated styrene butadiene rubber (XSBR) and their blends

Stephen

Varghese

Joseph³

et al. 2006

Journal of Membrane Science

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“…The first type is the chemical interaction. Upon exposure to solvents, the tendency of swelling depends on the existence of polarity groups in both rubber and solvents (Mathai et al, 2002;Haseeb et al, 2010;Seehra et al, 2012). This interaction explains that the greater swelling rate in B100 than in B0 could be due to the existence of polarity groups in both NBR and the B100 solvent.…”

Section: Discussionmentioning

confidence: 99%

Fatigue of swollen elastomers

Loo

Cam

Andriyana

et al. 2015

International Journal of Fatigue

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The compatibility of the properties of elastomer with conventional diesel fuel has made it favourable in many engineering applications. However, due to global energy insecurity issues, there is an urgent need to find alternative renewable sources of energy as replacements to conventional diesel. In this respect, biodiesel appears to be a promising candidate. Hence, research into the compatibility and fatigue characteristics of elastomers exposed to biodiesel becomes essential. The present paper introduces the first attempt to investigate the effect of different solvents on the fatigue of swollen elastomers. The filled nitrile rubbers are immersed in the palm biodiesel and conventional diesel to obtain the same degree of swelling prior to the application of uniaxial fatigue loading. Field Emission Scanning Electron Microscopy (FESEM) analysis is carried out to observe the fracture surfaces. Stretch-N curves are plotted to illustrate the fatigue life duration. These curves showed that the fatigue lifetime of rubber is the longest for dry rubber and the least for rubber swollen in biodiesel. FESEM micrographs reveal that the loading conditions have no effect on the crack initiation and propagation patterns regardless of the swelling state.

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Transport of substituted benzenes through nitrile rubber/natural rubber blend membranes

Cited by 54 publications

References 28 publications

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Studies on the Transport of Aromatic Solvents through Filled Natural Rubber

Diffusion and transport through nanocomposites of natural rubber (NR), carboxylated styrene butadiene rubber (XSBR) and their blends

Fatigue of swollen elastomers

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