Results 261 to 270 of about 11,211 (309)

Characterization of elastomer blend and compatibility

Journal of Applied Polymer Science, 1999
Binary blends of acrylonitrile-co-butadiene rubber and ethylene propylene diene monomer rubber are immiscible. However, they can be made compatible by addition of a third elastomer viz., chlorinated polyethylene or chlorosulphonated polyethylene in small concentrations. Various sophisticated analytical techniques, e.g., ultrasonic velocity measurements
D. K. Setua, K. N. Pandey, A. K. Saxena, G. N. Mathur   +3 more
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Electrically conductive thermoplastic elastomer/polyacetylene blends

Polymer Bulletin, 1983
Three different types of thermoplastic elastomers, styrenebutadiene-styrene, styrene-isoprene-styrene, and styreneethylenebutylene-styrene triblock copolymers have been blended with polyacetylene utilizing various blending techniques. In one method, acetylene gas was polymerized with the Ziegler-Natta catalyst in the presence of either the ...
Kang I. Lee, Harriet Jopson
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Polypropylene blends with elastomers

1999
Discovery of isotactic polypropylene (PP) in 1954 started a search for methods to improve its low-temperature impact strength [1, 2]. These activities commenced in the late 1950s by blending PP with polyethylenes (PE) or elastomers, then by copolymerizing it with ethylene into ethylene-propylene rubber (EPR) and ethylene-propylene-diene (EPDM).
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Stress softening in elastomer blends

Journal of Applied Polymer Science, 1969
AbstractCompressive stress softening (Mullins effect) in black‐filled vulcanizates of the blended system natural : nitrile : brominated butyl rubber has been investigated. The results are expressed in terms of parameters derived from successive stress‐strain cycles. The ratio of the work done on loading in the first and second cycles is called the load
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Elastomer-Gasoline Blends Interactions I. Effects of Methanol-Gasoline Mixtures on Elastomers

Rubber Chemistry and Technology, 1982
Abstract 1. Properties of most fuel resistant elastomers are degraded to a larger extent by mixtures of methanol and gasoline than by the pure components. 2. The data on all elastomers except the fluorocarbon can be explained in terms of the solubility parameter concept. 3.
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Electron Microscopy of Heterogeneous Elastomer Blends

Rubber Chemistry and Technology, 1967
Abstract Microheterogeneity has been observed in several elastomer blends on thin frozen sections, microtomed in a nitrogen atmosphere to eliminate all surface oxidation and cracking, in both phase and electron microscopes. Phase photomicrographs and electron micrographs showing identical detail were obtained on sections swollen in a solvent ...
Peter A. Marsh, Andries Voet, L. D. Price   +2 more
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Resistance to Ozone Cracking in Elastomer Blends

Rubber Chemistry and Technology, 1966
Abstract The phenomenon of ozone cracking has been investigated for elastomer blends containing an ozone reactive phase (natural rubber) and an ozone inert phase (ethylene propylene rubber). Electron microscopical studies reveal phase separation in the blend and the locus of ozone attack.
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Effect of blending techniques on the curing of elastomer blends

Die Angewandte Makromolekulare Chemie, 1988
AbstractCompounding of styrene‐butadiene copolymer/polybutadiene, natural rubber/ethylene‐propylene‐diene terpolymer and natural rubber/butadiene‐acrylonitrile copolymer blends was done in three different ways and their curing behaviour and the tensile properties of the vulcanizates are compared.
R. Joseph, K. E. George, E. A. A. Samad, D. J. Francis   +3 more
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Thermoset/(Thermoplastic elastomer) blends: Epoxy/EVA

Journal of Vinyl and Additive Technology, 2000
Abstract Phase separation behavior and phase morphology of mixtures of methylene dianiline (MDA)‐cured diglycidyl ether of Bisphenol A (DGEBA) epoxy oligomer and 0–30 wt % of ethylene‐(vinyl acetate) copolymer (70% vinyl acetate content) were investigated by means of small angle light scattering (SALS), optical microscopy, and ...
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Rheology of elastomer blends and composites

2022
Elastomers, their blends, and composites are very complex rheological fluids. During their production, they undergo numerous mechanical stresses and deformations. Therefore, manufacturing facilities should be designed and optimized taking into account the material response.
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