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Improved polyurethane/geotextile composite liner for canals and ditches based on liquefied monomericmdi-derivatives
Improved polyurethane/geotextile composite liner for canals and ditches based on liquefied monomericmdi-derivatives
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机译:基于液化单体mdi衍生物的改进的用于运河和沟渠的聚氨酯/土工织物复合衬里
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摘要
An improved polyurethane/geotextile composite is prepared from a polyurethane forming composition in which a liquefied monomeric diphenylmethane diisocyanate (MDI) is used as the isocyanate component. Such composites may be used to line canals and/or ditches by applying the geotextile soaked with polyurethane forming composition to the surface to be lined before the polyurethane-forming reaction has been completed and allowing the polyurethane to cure in place. These composites are characterized by improved physical and mechanical properties and the ability to withstand dramatic changes in the temperature of the environment in which they are employed.
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