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  • Which Green plasticizers are used for internal plasticization of PVC?
  • In this study, the tributhyl citrate (TBC), propargyl ether tributhyl citrate (PrTBC), oleic acid and poly (dimethylsiloxane) diglycidyl ether terminated (PDMS, Mn ≃ 800) have been used as four different green plasticizers to internal plasticization of PVC.
  • Is green plasticization useful for plasticization of PVC with higher Termal stability?
  • The results showed that this green approach is not only useful for plasticization of the PVC with higher termal stability, but also for inhibition of the migration of the plasticizer molecules.
  • Why does PVC oleic and PVC-TBC 2 have a lower Tg?
  • The Tg reduction in the range of 21.4–43.0 °C was observed in these materials. The prepared materials from PVC-HDI precursor (PVC-oleic and PVC-TBC 2) have a lower Tg compared to others. This can be related to the presence of the HDI at them, which caused the higher free volume at them and result in more flexibility.
  • What is the internal plasticizing mechanism of self-plasticizing PVC materials?
  • Internal plasticizing mechanism of self-plasticizing PVC materials. Kilpatrick and Clark (among others ) developed the lubricity theory for plasticization. In this theory, molecular lubrication is happening by the aid of plasticizer, which facilitate the movement of the chains over each other when a force applied to them .
  • Does Plasticized PVC migrate?
  • The migration data for external plasticized PVC (DOP) was obtained from reference 12. The migration degree of DOP in distilled water, 30% (w/v) acetic acid, petroleum ether and 10% (v/v) ethanol was 1.36%, 1.52%, 3.21% and 1.53% respectively. Meanwhile, there is no migration for internally plasticized PVC.