The Effect of Rheological Additives on the Flow of Polysulphone Melts

Autor: I.D. Simonov-Emel'yanov, P.V. Surikov, A.B. Baranov
Rok vydání: 2018
Předmět:
Zdroj: International Polymer Science and Technology. 45:107-110
ISSN: 1478-2405
0307-174X
DOI: 10.1177/0307174x1804500306
Popis: The rheological characteristics of a melt of home-produced polysulphone of grade PSF-190 with processing additives of different nature – silsesquioxane, fluorine-containing, and polymethylsiloxane additives – were investigated. The flow curves of PSF-190 with additives in different quantities in a wide range of temperatures, shear velocities, and shear stresses were obtained. It was shown that the functional properties of the additives depend considerably on their thermodynamic compatibility with PSF-190 at high temperatures (290–320°C), their solubility, and their content. It was established that the introduction of 2.5 wt% silsesquioxane additive lowers the viscosity of PSF-190 most effectively (by a factor of 2.5).
Databáze: OpenAIRE