Self-insulation wallboard poured with polyurethane sandwich layer and manufacturing and forming method of self-insulation wallboard

Abstract

The invention provides a self-insulation wallboard poured with a polyurethane sandwich layer and a manufacturing and forming method of the self-insulation wallboard, and belongs to the technical fields of production of flame-retardant polyurethane energy-saving materials and energy conservation of buildings. The manufacturing and forming method of the self-insulation wallboard comprises the steps that high-temperature-resistant inorganic hybrid melamine resin polyhydric alcohol or polyhydric alcohol etherified melamine resin, an emulsifying agent, a composite catalyst, a phosphate flame retardant and a foaming agent such as water or water glass are used as the main raw materials and are stirred and dispersed for preparing composite polyether, and then the composite polyether and methylene diphenyl diisocyanate (MDI) are foamed on a plate machine, a spraying machine and a pouring machine, so that an environment-friendly all-water-foamed grade-Bi flame-retardant inorganic hybrid melamine polyurethane rigid foam material is obtained; and the polyurethane rigid foam insulation sandwich layer is formed between an internal cement board and an external cement board poured into the inorganic hybrid melamine polyurethane rigid foam material. According to the self-insulation wallboard poured with the polyurethane sandwich layer and the manufacturing and forming method of the self-insulation wallboard, the rigid foam material does not contain the low-boiling-point hydrocarbon compound, namely chlorofluorocarbon, or chlorofluorocarbon compounds, water is used for foaming, an ozone layer is not damaged, the greenhouse effect is avoided, and the environment is protected; and the flame resistance is improved by at least 20% and is excellent, and the oxygen index is 30% or over.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant polyurethane energy-saving material production and building energy conservation, and particularly relates to a polyurethane sandwich self-insulating wallboard 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 Conservatio...

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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