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Effect of plasticizers on melt processability and properties of PHB

M. RÂPĂ1,* , R. N. DARIE-NIŢĂ2, E. GROSU1, E.E. TĂNASE3, A.R. TRIFOI1, T. PAP1, C. VASILE2

Affiliation

  1. ICPAO S.A., 8 Carpati St., 551022 Medias, Sibiu, Romania
  2. „Petru Poni" Institute of Macromolecular Chemistry Iasi, 41A Grigore Ghica Voda Alley,700487 Iasi, Romania
  3. University of Agronomic Science and Veterinary Medicine Bucharest, Faculty of Biotehnologies, Blv. Marasti 59, 011464 Bucharest, Romania

Abstract

Some results regarding plasticization of poly(3-hydroxybutyrate) (PHB) using triethyl citrate (TEC), acetyl o-tributyl citrate (ATBC) and tributyl citrate (TBC) are presented. The blends were obtained by melt mixing procedure on a Brabender Plastograph at a temperature of 180oC, rotor speed of 60 rpm and mixing time of 6 minutes. The amounts of plasticizers varied from 10 wt.% to 30 wt.% relative to PHB. The effect of plasticizer content on the melt viscosity, thermal properties (DSC), spectral characteristics (ATR-FTIR), tensile properties and water permeability was investigated in order to improve the processability and properties of PHB..

Keywords

Poly(3-hydroxybutyrate), Plasticizer, Melt processability, Property.

Submitted at: April 4, 2015
Accepted at: Oct. 28, 2015

Citation

M. RÂPĂ, R. N. DARIE-NIŢĂ, E. GROSU, E.E. TĂNASE, A.R. TRIFOI, T. PAP, C. VASILE, Effect of plasticizers on melt processability and properties of PHB, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 11-12, pp. 1778-1784 (2015)