Polymer blends—2

Kundu, Achintya K.; Ray, Sudeshna; Adhikari, Basudam; Maiti, Sukumar

doi:10.1016/0014-3057(86)90131-x

Cited by 31 publications

(12 citation statements)

References 7 publications

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“…Tensile strength goes on increasing with increasing content of CR in the blends except that of CR, which, due to higher cure heterogeneity, 12 fails at relatively lower elongation and shows lower stress.…”

Section: Physical Propertiesmentioning

confidence: 94%

Influence of blend composition on the physical, flame retardancy, dielectric, aging, and solvent resistance properties of poly[ethylene(vinyl acetate)] and polychloroprene

Kundu

Choudhury

Tripathy

1999

J. Appl. Polym. Sci.

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Poly[ethylene(vinyl acetate)] (EVAc) has been blended with polychloroprene (CR) to develop a compound for application in the cable industry. Physical, flame retardancy, dielectric, and solvent resistance properties have been investigated for the blends. On air and brine aging, the tensile properties for 50/50 blend remains almost unchanged, though retention in tensile properties is maximum for CR in solvent aging and for EVAc in air aging. 50/50 blend shows substantially lower set and hardness compared to EVAc. The limiting oxygen index of 50/50 blend is found to be higher compared to EVAc, which indicates sufficient inflammable capability of 50/50 blend in atmospheric air. A substantially lower dielectric constant, conductivity with good physical properties, and inflammability of 50/50 blend suggests its suitability for use as a cable sheathing compound.

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Section: Physical Propertiesmentioning

confidence: 94%

Influence of blend composition on the physical, flame retardancy, dielectric, aging, and solvent resistance properties of poly[ethylene(vinyl acetate)] and polychloroprene

Kundu

Choudhury

Tripathy

1999

J. Appl. Polym. Sci.

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“…where M, w, d, and q are the molecular weight of monomer unit, weight fraction, solubility parameter, and the polymer density, respectively, and subscript a and b refer to EVA and polycaprolactam, respectively [16,17]. The behavior of heat of mixing demonstrates the heterogeneity of EVA/polycaprolactam blend system over the entire composition range.…”

Section: Blend Miscibility and Distribution Of Cbmentioning

confidence: 97%

“…For EVA/CB and polycaprolactam/CB systems the value of t suggests three-dimensional (3D) conduction within the system whereas for EVA/polycaprolactam (50:50) blend/CB composites 2D conduction is inferred, clearly highlighting that electron hopping through interface is the major mode of conduction in the ternary composites. To get further insight into the conductivity behavior 1, additive model and modified Mamunya model were also used [13,16,17,[19][20][21]. Additive model can be described as…”

Section: Electrical Propertiesmentioning

confidence: 99%

Selective interfacial localization in conducting polycaprolactam/ethylene vinyl acetate/carbon black composites

et al. 2013

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Unusual electrical conductivity was demonstrated by ethylene vinyl acetate/polycaprolactam/carbon black (CB) composites. The critical exponent value was 1.2 6 0.2 for ternary composites and was greater than 2.0 for the binary composites, indicating two-dimensional electrical conduction in ternary composites. The ternary composites also showed inverted U-shaped conductivity curves when CB weight fraction was greater than 10 wt%. However, at 10 wt% CB, a discontinuous conductivity curve showing conductivity only when polycaprolactam content was greater than 50% was observed, suggesting substantial variation in the interfacial characteristics with the change in the blend composition. Small-angle X-ray scattering studies pointed out that ternary composites can be viewed as a two-phase system with sharp boundaries, and that interface layer in the composites does not exist. Differential scanning calorimetry studies suggested composition dependent variation in the crystallinity of polycaprolactam phase, partially contributing to the increase in the composites' conductivity at higher polycaprolactam fractions. POLYM. COMPOS., 34:912-919, 2013. ª

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“…Donnet 8 reported on surface modification of carbon black by that silane coupling agent leads to lowering in reinforcement, thus deteriorates in ultimate properties, whereas Bras and Papirer 9 reported an improvement in ultimate properties upon grafting of rubber onto the carbon black surface. Kundu et al has reported the measurement of filler-rubber interactions through the studies of rheometric 10 and physical 11 properties. The use of oils in the rubber compound reduces its cost as well as plasticises the surface between the carbon black and the polymers.…”

Section: Introductionmentioning

confidence: 98%

Improvement of filler-rubber interaction by the coupling action of vegetable oil in carbon black reinforced rubber

Kundu

2000

J. Appl. Polym. Sci.

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Vegetable oil has been added in small amount to the rubber compound during mixing. It has been observed that the extent of cure obtained from the rheometric torque is lower for vegetable oil-containing compounds. This has been manifested from their physical and tensile properties. The lower abrasion and hardness of vegetable oil-containing compounds may be due to better plasticization and lower crosslink density. The lower tan Ѩ at maximum torque indicates lower loss and heat generation. The vegetable oil-containing compounds shows lower modulus, higher tensile strength, and elongation. All the compounds containing vegetable oil shows lower compression set and higher rebound resilience, tear strength, and flex cracking compared to the standard compound containing no vegetable oil.

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Polymer blends—2

Cited by 31 publications

References 7 publications

Influence of blend composition on the physical, flame retardancy, dielectric, aging, and solvent resistance properties of poly[ethylene(vinyl acetate)] and polychloroprene

Influence of blend composition on the physical, flame retardancy, dielectric, aging, and solvent resistance properties of poly[ethylene(vinyl acetate)] and polychloroprene

Selective interfacial localization in conducting polycaprolactam/ethylene vinyl acetate/carbon black composites

Improvement of filler-rubber interaction by the coupling action of vegetable oil in carbon black reinforced rubber

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