Foaming material for split solar thermal insulation board and preparation method thereof

Abstract

The invention belongs to the technical field of polyurethane foaming plastics, and in particular relates to a foaming material for a split solar heat-insulation board and a preparation method of the foaming material. Polyether polyol I, polyether polyol II, polyether polyol III, a catalyst I, a catalyst II, a catalyst III, silicone oil and a fire retardant are mixed uniformly to obtain the foaming material. Foam generated during the reaction process of the prepared foaming material and isocyanate has high compression strength, therefore the foam generated by the foaming material for the split solar heat-insulation board has high high-temperature size stability, and the foam is prevented from deforming at high temperature. Meanwhile, fire-retardant polyester is adopted to be matched with the fire retardant for use, so that the split solar heat-insulation board is ensured to have B2-grade fire-retardant performance. The method has the advantages of being scientific and reasonable, simplicity and easiness in operation and low production cost.

Description

technical field [0001] The invention belongs to the technical field of polyurethane foam plastics, and in particular relates to a foam material for a split solar heat insulation board and a preparation method thereof. Background technique [0002] Polyurethane foam is a foam product made of polyether polyol and isocyanate under the action of a blowing agent. It has excellent thermal insulation properties, mechanical properties, electrical properties, acoustic properties and chemical resistance, especially excellent thermal insulation properties. And widely used in refrigerators, freezers, water heaters, cold storage panels, sandwich panels, pipeline insulation, refrigerated containers, and other thermal insulation fields. [0003] At present, there are two kinds of materials for heat insulation boards for split solar energy. One is to use rock wool, which has better high temperature resistance, but has high thermal conductivity and poor heat preservation; the other is to use...

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Problems solved by technology

[0003] At present, there are two kinds of materials for heat insulation boards for split solar energy. One is to use rock wool, which has better high temperature resistance, but has high thermal conductivity and poor heat preservation; the other is to use polyurethane insulation boards. According to the size of the product The size is cut with large bubbles. Because the size of the thermal insulation board for split solar energy is small (thickness 0.015m), the waste in the process of cutting with large bubbles is serious, resulting in higher cost of the product

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