Preparation, Characterization, and Properties of Silicate/Polyurethaneurea Composites Based on Dipropylene Glycol Dibenzoate

The silicate/polyurethaneurea composites based on dipropylene glycol dibenzoate were prepared via a room-temperature-cured process. Characterization of the composites was accomplished using scanning electron microscope, X-ray diffraction, Fourier transformation infrared spectrum, and Raman spectroscopy, and the mechanism, mechanical properties and stability were discussed in detail. The obtained results indicated that a durable silicate/polyurethaneurea composite with inorganic-organic network structure had been successfully prepared. The composites were thermally stable below 210 degrees C and the compressive and flexural strength of the material could reach 42.6 and 29.2 MPa after curing for 6 h, respectively. (C) 2014 Society of Plastics Engineers