Abstract
In this paper, polyether diol (CASPOL1861 (V)), liquefied diphenylmethane diisocyanate (103C) and small molecular diol (CASPOL1905) were used as the main reaction materials to synthesize polyurethane template materials for the molding concrete. According to the requirements of polyurethane template materials on high strength, high elongation at break, moderate hardness, low water absorption rate and high alkali resistance, the effect of the types of the soft segments and the types of isocyanate on the mechanical properties, alkali hydrolysis resistance, water absorption, thermal properties and aging properties of the prepared polyurethane template materials were studied by characterizing the properties of polyurethane template materials by mechanical tests, TG, DSC, and other methods.
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