Specific Features of Strain Dependences of Loss Modulus in Highly Stretched Elastomers | Zendy

Borodin Igor P. | Zendy; Borodina Tatyana I. | Zendy; Khazanovich Theodor N. | Zendy

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Specific Features of Strain Dependences of Loss Modulus in Highly Stretched Elastomers

Author(s) -

Borodin Igor P.,

Borodina Tatyana I.,

Khazanovich Theodor N.

Publication year - 2012

Publication title -

macromolecular theory and simulations

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.37

H-Index - 56

eISSN - 1521-3919

pISSN - 1022-1344

DOI - 10.1002/mats.201100114

Subject(s) - materials science , modulus , elastomer , composite material , deformation (meteorology) , distortion (music) , glass transition , range (aeronautics) , ultimate tensile strength , extensibility , polymer , computer science , operating system , amplifier , optoelectronics , cmos

The loss modulus E ″ in elastomer strips stretched by a factor of λ is studied theoretically. A small oscillating deformation is applied to these strips in the transition frequency zone between the glassy and rubbery states. The range of λ under study ranges up to ultimate extensions close to fracture. A model of E ″/ λ dependence in the transition frequency zone is suggested that considers the possible distortion in the local chain structure in the ultimate extension range. It is found that E ″ in the range of moderate and high λ increases owing to the finite extensibility of the chains. However, upon further extension up to ultimate values, E ″ decreases and a maximum appears on the E ″/ λ curves. These features are also confirmed experimentally.

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