Part 1: Synthesis and Evaluation of Novel Nano Scale Powdered Polyurethane Acrylate BindersReportar como inadecuado




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Some new an aqueous polyurethane acrylate waterborne binder based on polyethylene glycol with different M. wt. mixed with polyol were carried out. Seven different polyurethane acrylate co-polymers were prepared aiming at substituting the two hydroxyl groups of polyethylene glycol 6000, 12,000 and 20,000 g-mol and two primary hydroxyl groups of polyol through their reaction with corresponding calculated amounts of either isophorone diisoyanate or toluene diisocyanate and caped the remaining isocyanate group with either hydroxy ethyl acrylate or hydroxy propyl methacrylate to get on the polyurethane acrylate polymers PUA. From DSC measurement the result of Tg of synthesized PUA are in range from -8.78℃ to 36.4℃. So they can classify as soft binders. The infrared spectra, rheological properties, viscosity measurement, the weight average molecular weight, of the synthesize binders were investigated.

KEYWORDS

Synthesis; Novel Powdered; An Aqueous; Polyurethane; Acrylate Binders

Cite this paper

M. M. El-Molla, K. Haggag, F. N. El-Shall and N. O. Shaker -Part 1: Synthesis and Evaluation of Novel Nano Scale Powdered Polyurethane Acrylate Binders,- Advances in Chemical Engineering and Science, Vol. 2 No. 2, 2012, pp. 212-227. doi: 10.4236-aces.2012.22026.





Autor: Mohamed M. El-Molla, Karima Haggag, Fatma N. El-Shall, N. O. Shaker

Fuente: http://www.scirp.org/



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