Development of polyurethane dispersion based on aromatic isocyanat: influence of NCO/OH ratio on physico-mechanical properties of PUD

Authors

  • E. S. Negim Kazakh-British Technical University, Almaty; National Research Centre, Giza
  • T. Ketegenov Institute of combustion problems, Almaty
  • A. Narimanov Kazakh-British Technical University, Almaty
  • M. Zhangaliyev Kazakh-British Technical University, Almaty
  • H. Rafikova Kazakh-British Technical University, Almaty
  • G. S. Irmukhametova Al-Faraby Kazakh National University, Almaty
  • R. Iskakov Kazakh-British Technical University, Almaty
  • G. A. Mun Al-Faraby Kazakh National University, Almaty

DOI:

https://doi.org/10.26577/2218-7979-2016-9-1-73-78

Keywords:

polyurethanes, NCO/OH ratio, mechanical properties, physical properties, TDI

Abstract

Aqueous polyurethane dispersions (PUDs) were prepared by the prepolymer mixing technique solventfree using aromatic isocyanat[toluene diisocyanate (TDI)], poly(oxytetramethylene) glycol (PTMG), dimethylol propionic acid (DMPA). The properties of both the dispersion’s and casting polymer films were characterized byparticle size analyzer, viscosity and tensile tester. IR spectroscopy was used to check the end of polymerization reaction and characterization of polymer. The effect of NCO/OH molar ratio on the physico-mechanical properties of the polyurethanes was studied. Results showed that tensile strength, contact angle and average particle size increase with increase of NCO/OH molar ratios. Elongation at break and viscosity decrease with increase of NCO/OH molar ratios.

Author Biographies

  • E. S. Negim, Kazakh-British Technical University, Almaty; National Research Centre, Giza

    School of Chemical Engineering;

    Polymer & Pigment Department

  • A. Narimanov, Kazakh-British Technical University, Almaty
    School of Chemical Engineering
  • M. Zhangaliyev, Kazakh-British Technical University, Almaty
    School of Chemical Engineering
  • H. Rafikova, Kazakh-British Technical University, Almaty
    School of Chemical Engineering
  • R. Iskakov, Kazakh-British Technical University, Almaty
    School of Chemical Engineering

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Published

2016-06-30

Issue

Vol. 9 No. 1 (2016): International Journal of Biology and Chemistry

Section

Chemistry

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How to Cite

“Development of Polyurethane Dispersion Based on Aromatic Isocyanat: Influence of NCO OH Ratio on Physico-Mechanical Properties of PUD”. 2016. International Journal of Biology and Chemistry 9 (1): 73-78. https://doi.org/10.26577/2218-7979-2016-9-1-73-78.