Polyurethane integrated plate produced by mold embedded with reclaimed material and production process thereof

Abstract

The invention discloses a production process for a polyurethane integrated plate by a mold embedded with a reclaimed material. The production process comprises the following steps of: separating the mold into a low-density decorative layer mold cavity and a high-density heat insulation layer mold cavity through a movable baffle, adding a decorative layer polyurethane material by using a foaming machine, and foaming and molding to form a polyurethane decorative layer; and curing, turning the mold, extracting the baffle, adding the polyurethane reclaimed material, adding a heat insulation layer polyurethane material into the mold by using the foaming machine, making the material infiltrate the reclaimed material and fully fused with the reclaimed material to coat the reclaimed material, and foaming on the surface of the molded decorative layer to form the polyurethane heat insulation layer. The production process solves the problem that the polyurethane reclaimed material cannot be utilized on a large scale, the production cost of a polyurethane decorative insulation board is greatly reduced, production procedures are reduced, the loss of production machines is reduced, and large-scale industrial production is realized.

Description

technical field [0001] The invention relates to a polyurethane board and a production process thereof, in particular to a polyurethane integrated board produced by a mold built-in recycled material method and a production process thereof. Background technique [0002] Carbon emissions cause global warming and threaten human existence. One-third of global energy use and related greenhouse gas emissions are related to building energy consumption, and 60% of urban carbon emissions come from building maintenance functions. The total area of ​​stock buildings in my country is about 43 billion m 2 , the real sense of energy-saving buildings is less than 10%. Building energy conservation and emission reduction is the focus of my country's emission reduction work. [0003] Among the existing building insulation materials, polyurethane (PU) has the best thermal insulation performance, and its fireproof performance is also superior after adding flame retardants. The application of ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the production process is increased, because the mold of the high-density decorative board and the mold of the low-density insulation board are separately produced, and the decorative board and the insulation board are produced separately, and then manually passed through the tool and then pasted together with adhesive glue, and the artificial connection Adhesive quality cannot be guaranteed, and large-scale industrial production cannot be realized