The Effect of Triacetin on the Plasticization Efficiency and Tensile Properties of Polyvinyl Chloride/di-2-Ethyl Hexyl Phthalate/Triacetin Compounds

Abstract:

The use of triacetin as an alternative plasticizer to polyvinyl chloride (PVC) was studied in term of plasticizer efficiency and tensile properties before and after ageing. The efficiency of plasticizers was evaluated based on the glass transition temperature (T_g) and the hardness value of the compounds. The T_g and hardness of all PVC/DEHP/Triacetin compounds are lower than PVC/50DEHP and PVC/50Triacetin compounds indicating synergistic plasticisation effect between both DEHP and Triacetin within the PVC compounds. The low molecular weight and chemical structure of triacetin are believed to contribute to the highest tensile strength, elongation at break and modulus of the PVC/triacetin compared with PVC/DEHP and PVC/DEHP/triacetin compounds. However, the migration ability of the triacetin plasticizer is believed to result in the biggest changes of the tensile properties of PVC compounds plasticized with triacetin before and after ageing.

• Periodical: Advanced Materials Research (Volume 1133)
• Pages: 206-210
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1133.206
• Online since: January 2016
• Authors: Arjulizan Rusli*, Nur Farhana Asul Kahar
• Keywords: Plasticizer, Polyvinyl Chloride, Renewable Sources, Triacetin

References

[1] M.Z. Fiume, Final report on the safety assessment of triacetin, Int. J. Toxicol. 22 (2003)1-10.

[2] L.J. Garfield, S.E. Petrie, Viscosity and glass-transition behavior of polymer-diluent systems, J. Phys. Chem. 68 (1964) 1750-1754.

DOI: 10.1021/j100789a013

[3] D. Hutchings, M. Nicklasson, A.A. Sakr, An evaluation of ethylcellulose-plasticizer interactions using intrinsic viscosity and interation constant, Pharazie. 48 (1993) 912-914.

[4] T.G. Fox, Influence of diluents and of copolymer composition on the glass transition temperature of a polymer system, Bull. Am. Phys. Soc. 1 (1956) 123-125.

[5] L.G. Krauskopf, A. Godwin, Plasticizers in: C.E. Wilkes, J.W. Summers, C.A. Daniels, PVC Handbook, Hanser Publications, Munich, 2005, pp.173-200.

[6] K.J. Saunders, Organic polymer chemistry: An Introduction to the Organic Chemistry of Adhesives, Fibres, Paints, Plastics and Rubbers, Chapman and Hall, New York, (1973).

[7] G. Wypych, Handbook of Plasticizers, Chemtec Publishing, Toronto, (2004).

[8] T.D. Stark, H. Choi, P.W. Diebel, Influence of plasticizer molecular weight on plasticizer retention in PVC geomembranes, Geosynth. Int. 12 (2005) 99-110.

DOI: 10.1680/gein.2005.12.2.99