Dynamic Properties of Rubber

Gehman, S. D.; Woodford, D. E.; Stambaugh, R. B.

doi:10.1021/ie50380a015

Cited by 58 publications

(17 citation statements)

References 5 publications

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“…At all strains, stress amplification in the vicinity of the inextensible particles increases the modulus; 13,14 however, when the filler concentration is sufficiently high, a network structure forms, giving rise to a larger and strongly nonlinear modulus. [15][16][17][18] The nonlinearity is due to the mechanical lability of the flocculated particle structure, the breakup of which is governed by the strain energy. [19][20][21] Interaction of the polymer chains in the vicinity of the filler interface can be expected to influence the former's local segmental dynamics, and there are various reports of glassy behavior induced in rubbery material due to proximity of filler particles such as carbon black.…”

Section: Introductionmentioning

confidence: 99%

Structural Arrest and Thermodynamic Scaling in Filler-Reinforced Polymers

Robertson¹,

Bogoslovov

Roland

2009

Rubber Chemistry and Technology

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The role of small silica particles on the stiffness and glass transition dynamics of polyvinylacetate (PVAc) was examined for filler volume fraction (φ) from 0 to 0.28. Whereas the influences of bound polymer and a strain-dependent filler network were clearly noted in the shear properties, the only effect of filler on the bulk modulus was the reduction in deformable polymer. The calorimetric glass transition of PVAc and its dependence on cooling rate were unaltered by the presence of the silica, in agreement with previous dielectric relaxation results. In contrast to the temperature dependence of the segmental dynamics, which was independent of φ, the effect of volume on segmental relaxation was amplified by the addition of silica. This resulted in larger values for the thermodynamic scaling exponent (γ), which also increased sharply at the filler concentration corresponding to the development of a percolated filler network.

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Section: Introductionmentioning

confidence: 99%

Structural Arrest and Thermodynamic Scaling in Filler-Reinforced Polymers

Robertson¹,

Bogoslovov

Roland

2009

Rubber Chemistry and Technology

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“…It is also well known that the presence of fillers in an elastomer increases hysteretic properties. 2 An important contribution to the literature was made when Gessler3 showed that when butyl was milled with carbon black at high temperatures the contribution of the black to internal friction was much reduced. Working with Ford,4 Ciessler has shown that this effect could be greatly accelerated by the presence of pdinitrosobenzene during the milling process.…”

Section: Introductionmentioning

confidence: 99%

Dynamic properties of heat‐treated butyl vulcanizates

Payne¹

1963

J of Applied Polymer Sci

152

108

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Heat treatment of butyl rubber containing carbon black can considerably reduce “structure effects” in the dynamic properties of the vulcanizate, although swelling measurements indicate that G ∞ the shear modulus at very high amplitudes is unaltered. This paper compares the G′, G″ and phase angle δ changes that occur with the amplitude of oscillation for both a normal butyl rubber containing HAF black and a vulcanizate of the same composition but which has been subjected to an additional heat‐treatment process with N‐methyl‐N, 4‐dinitrosoanaline.

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“…Williams (19), Barnett (1), and Frumkin and Dubinker (5, 6) are among those who have investigated the thermal conductivity. The problem of heat generation has been studied by Barnett and Mathews (2), Fielding (4)> Jones and Pearce (11), and others, using the rebound technique to determine energy absorption; by Kosten (12), Naunton and Waring (IS, 16), Roelig (17), Sebrell and Dinsmore (18), Gehman et al (7,8), using high-frequency vibrations; and by Cooper (S), Havenhill (10), Lessig (13), Mackay, Anderson, and Gardner (14) > and Gough and Parkinson (3) in apparatus involving the destructive working of rubber stocks. The latter method gave results which in-Mjfi.…”

Section: A *mentioning

confidence: 99%

Thermal Decomposition of Natural and Synthetic Rubber Stocks

Prettyman¹

1942

Ind. Eng. Chem.

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Dynamic Properties of Rubber

Cited by 58 publications

References 5 publications

Structural Arrest and Thermodynamic Scaling in Filler-Reinforced Polymers

Structural Arrest and Thermodynamic Scaling in Filler-Reinforced Polymers

Dynamic properties of heat‐treated butyl vulcanizates

Thermal Decomposition of Natural and Synthetic Rubber Stocks

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