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Evaluation of some polyetherurethane elastomers for chemicals, oils and solvents resistance

S. VLAD1,* , C. CIOBANU1, D. MACOCINSCHI1, D. FILIP1, I. SPIRIDON1

Affiliation

  1. “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41 A, 700487, Iasi, Romania

Abstract

In this study were synthesized and evaluated some polyetherurethanes (PEUs) for chemicals, oils and solvents resistance. Two series of PEUs were synthesized by two step polymerization. In first stage, the polytetramethyleneetherglycol prepolymer (PTMEG - Mw 1400 g/mol) was terminated with two different diisocyanate: 4,4’-diphenylmethane diisocyanate (MDI) and 1,6-hexanediisocyanate (HDI). In second step the prepolymers were extended with a mixture of ethylene glycol (EG) and glycerine (Gly). Like most polyether-based elastomers, PTMEG polyol-based elastomers will swell in solvents due to its less polar nature. The PEUs have been characterized by FTIR and thermogravimetric analysis (TGA, DSC) and swelling measurements in diverse types of oils, solvents and different aggressive solution. The mechanical behaviour and hardness of the polymers, before and after swelling was the way to determine the resistance to these different mediums..

Keywords

Oil resistance, Polyetherurethane, Solvent resistance, Swelling.

Submitted at: April 21, 2009
Accepted at: Aug. 7, 2009

Citation

S. VLAD, C. CIOBANU, D. MACOCINSCHI, D. FILIP, I. SPIRIDON, Evaluation of some polyetherurethane elastomers for chemicals, oils and solvents resistance, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 8, pp. 1160-1168 (2009)