Study the effect of temperature and shear stresses on flow behavior Polylactic acid – polybutene-1 (PLA/PB-1) molten mixture

Authors

  • Hala Al-Kateb Tishreen University
  • Hassan Wassouf Tishreen University
  • Fawaz Al-Dairi Tishreen University

Abstract

In this research, we have studied the rheological properties of samples of PLA / PB-1 mixtures under the influence of high shear stress and different temperatures, where mixture were prepared in proportion 70/ 30 The mixture was prepared in preparation for the tests in the viscometer Then study the viscous properties by determining the viscosity and viscous activation energy (E) at constant shear stress, constant shear rate and through Newton's index (n).

 

The real viscosity transformations were also studied in terms of the inverse of temperature to determine the activation energy at constant shear stresses and constant shear speed, as the activation energy is useful in determining the sensitivity of the polymer's viscosity to temperature change.

The elastic properties of the studied mixtures were also studied using Barus technology, and it was found that the rate of swelling increases with the increase in shear stress, and it was found that there is no significant effect on the swelling coefficient B.

Downloads

Published

2024-12-22

How to Cite

1.
الكاتب ه, حسن وسوف, فواز الديري. Study the effect of temperature and shear stresses on flow behavior Polylactic acid – polybutene-1 (PLA/PB-1) molten mixture. TUJ-BA [Internet]. 2024Dec.22 [cited 2024Dec.23];46(4):95-107. Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/17580

Issue

Vol. 46 No. 4 (2024): Tishreen University Journal of Research and Scientific Studies - Basic Sciences Series

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series  

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series   Publisher

 

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.