Mechanical Properties of a Rigid Polyurethane/Montmorillonite Composite Prepared by Using a Biopolyol

Механика композитных материалов 2013
Sergejs Gaidukovs, Roberts Maksimovs, U. Cābulis, Edgars Plūme, Agnese Stunda-Zujeva

The preparation of specimens from a rigid polyurethane containing montmorillonite (MMT) particles as a filler is described. The specimens were fabricated employing a biopolyol synthesized from rapeseed oil. The investigation of their structure was performed by using the X-ray diffraction analysis. The thermomechanical properties of the specimens were determined by means of a dynamic mechanical analysis at temperatures varying from 20 to 160°C. Experimental data on the influence of MMT additions on the mechanical properties (hardness, strength, elastic modulus, ultimate elongation, and creep) of the composite are obtained. A theoretical analysis of elastic properties of the composite is carried out by using the Mori–Tanaka theory of an equivalent medium. The calculation results are compared with experimental data.

Keywords
polyuretane, biopolyol, montmorillonite, composite, mechanical properties

Gaidukovs, S., Maksimovs, R., Cabulis, U., Plūme, E., Stunda-Zujeva, A. Mechanical Properties of a Rigid Polyurethane/Montmorillonite Composite Prepared by Using a Biopolyol. Механика композитных материалов, 2013, Vol.49, No.4, pp.501-518. ISSN 0203-1272.

Publication language
Russian (ru)