Investigation of the Behavior of Organo-Metallic Compound and Its Influence on Polyurethane

HZMMA is a zinc salt of unsaturated carboxylic acids with a single hydroxyl group. The chemical behavior and morphological changes of the HZMMA were investigated by Fourier Transformed Infra Red spectroscopy (FTIR), thermal gravimetry (TGA), Scanning electron microscopy (SEM) and X-ray diffractometry (XRD). The experimental results showed that it was possible for HZMMA to be used as a reactive enhancer to prepare ionic polymers/polyurethane composites. A series of ionic polymer/polyurethane were prepared by poly (tetramethylene glycol) (PTMG), toluene diisocyanate (TDI) and self-made chain extenders which consisted of Dimethylthio toluene diamine (DMTDA), Dicumyl Peroxide (DCP) and HZMMA by prepolymerization. The effect of the content of HZMMA on the structure and properties of the composites were studied by DMA, TGA, XRD. The results indicated that HZMMA had formed poly-HZMMA particles by peroxide-induced dynamic vulcanization and the degree of micro phase separation of polyurethane were improved when the content of HZMMA was suitable. The poly-HZMMA particles improved the maximum decomposition temperature of the soft segment and the storage modulus of polyurethane. When the mass fraction of HZMMA and DCP were at 2 ‰, the maximum in the mechanical properties of the ionic polymers/polyether polyurethane composites was achieved.