Water-blown inorganic hybrid melamine polyurethane rigid foam material and manufacturing method thereof

Abstract

The invention provides a water-blown inorganic hybrid melamine polyurethane rigid foam material and a manufacturing method thereof, belonging to the fields of production of flame-retardant polyurethane energy-saving materials and building energy-saving technology. The manufacturing method comprises the following steps: with high-temperature-resistant inorganic hybrid melamine resin polyol or inorganic hybrid polyol etherified melamine resin, an emulsifier, a composite catalyst, a phosphate fire retardant, a foaming agent, and water or soluble glass as mainly raw materials, carrying out dispersion under stirring to separately prepare combined polyether; and then subjecting the prepared combined polyether and isocyanate MDI to foaming on a panel machine, a spray coater and a casting machine so as to prepare the environment-friendly water-blown inorganic hybrid melamine polyurethane rigid foam material with B1-grade flame retardation performance. The material provided by the invention is free of lower-boiling-point hydrocarbon compound chlorofluorocarbon and hydrochloroflurocarbon compounds, undergoes foaming in virtue of water, does not destroy an ozone layer nor produce greenhouse effect and is environment friendly; the flame resistance of the material is improved by at least 20%; and the material has excellent flame resistance while guaranteeing physical properties and has an oxygen index of more than 30%.

Description

technical field [0001] The invention belongs to the technical fields of flame-retardant polyurethane energy-saving material production and building energy conservation, and in particular relates to water-foamed polyurethane hard foam material and a manufacturing method thereof. Background technique [0002] my country is a large country with complex climate characteristics, such as the severe cold in the Northeast and the middle reaches of the Yangtze River in hot summer and cold in winter, which makes the energy consumption of building materials in my country very large. Winter warming in the northern region accounts for 27.3% of the country's total energy consumption. However, due to the problems of materials, technology and workmanship, the heating energy consumption per unit area of ​​traditional buildings in my country is 2-3 times that of developed countries with similar climate conditions in the world. The "Medium and Long-term Special Plan for Energy Conservation" p...

AI Technical Summary

Problems solved by technology

[0006] However, ordinary all-water foamed rigid polyurethane foam has many shortcomings, such as too high viscosity, poor fluidity, uneven foaming, resulting in coarse cells, large thermal conductivity, and brittle foam, etc.

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