Polymer Mechanics

, Volume 8, Issue 4, pp 667–669 | Cite as

Study of a polyethylene terephthalate film by an acoustic method

  • V. A. Grechishkin
  • I. I. Perepechko
Brief Communications


The effect of orientation on the acoustic properties of a polyethylene terephthalate film is examined. In a crystallized, uniaxially oriented film the velocity of ultrasound measured along the orientation axis is lower than in an amorphous oriented film, while the velocity of ultrasound measured at angles of over 35° to the direction of orientation rises after crystallization. Evidently the supramolecular organization of the polyethylene terephthalate film before and after heat treatment is quite different.


Crystallization Heat Treatment Polyethylene Terephthalate Polyethylene Terephthalate 
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Copyright information

© Consultants Bureau, a division of Plenum Publishing Corporation 1974

Authors and Affiliations

  • V. A. Grechishkin
  • I. I. Perepechko

There are no affiliations available

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