2020, №2

сс. 27-41

Competition of the Phase Separation Processes at Quasi-Isothermal Foaming of Polylactide in Carbon Dioxide Environment

2020, №2

сс. 27-41

Цитировать

D.A. Zimnyakov, V.K. Popov, N.V. Minaev, E.O. Epifanov, O.O. Parenago, R.A. Zdrajevsky, D.A. Vereshagin, O.V. Ushakova

Key words: quasi-isothermalfoaming, amorphouspolylactide, carbondioxide, nucleation, Gibbsenergy, binodal, spinodal

Mechanisms controlling the nucleation kinetics in the foamed amorphous D,L-polylactide,
which is preliminary plasticized using sub-ical or supercritical carbon
dioxide, are established using analysis of videodata on the depressurization-induced
quasi-isothermal (313,3 K) foaming of the polymer. Possible scenarios of the phase
separation in the polylatide—carbon dioxide system at the stage, which precedes the
expressed foam formation, are considered.

doi:10.1134/S1990793120080084