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Polymer Mechanics

, Volume 8, Issue 6, pp 868–872 | Cite as

Elasticity of the crystal lattice of polyethylene terephthalate

  • V. A. Ovchinnikov
  • V. A. Zhorov
  • Z. P. Baskaev
Article

Abstract

The elasticity of the crystal lattice of polyethylene terephthalate was studied along and across the axes of the polymer molecules. The elastic modulus across the chains depended on the degree of crystallinity and the interplane distances in the directions of thea and b parameters of the unit cell. The nature of the elastic deformation in the crystal lattice was analyzed, and its elastic modulus along and across the axes of the chains was calculated. On loading biaxially oriented amorphous-crystalline polymers with a tensile stress applied in the direction of one of the orientation axes of the polymer, the stresses in the crystallites oriented along and across the external applied force and the amorphous regions in series with them were equal to the stress in the sample averaged over the cross section.

Keywords

Polymer Polyethylene Elastic Modulus Tensile Stress Crystal Lattice 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau 1974

Authors and Affiliations

  • V. A. Ovchinnikov
  • V. A. Zhorov
  • Z. P. Baskaev

There are no affiliations available

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