Suppressing reinforcement plate prepared by utilizing recovered polyurethane foam waste and technique thereof

Abstract

The invention relates to a suppressing reinforcement plate prepared by utilizing recovered polyurethane foam waste and a technique thereof. The powder of the polyurethane foam waste is taken as a main raw material, and the suppressing reinforcement plate is prepared by the following components in parts by weight: 100 parts of polyurethane foam powder, 50-70 parts of isocyanate and 6-10 parts of water. The preparation process comprises the following steps: adding the 100 parts of polyurethane foam powder into a stirring kettle for stirring; adding the 50-70 parts of isocyanate into the stirring kettle; then adding the 6-10 parts of water and evenly mixing; heating a mould to 160-170 DEG C; and spraying a release agent in the mould; placing the mixture into the mould and flattening, and performing compression moulding by a press, wherein, the pressure of the press is 12-16MPa. The invention has the advantages that a foam plate suppressed by the polyurethane foam waste is used for CNC die sinking, which can not only reduce environment pollution, but also save the quantity of outsourcing CNC die sinking foam plates; and the price of the polyurethane foam waste plates is one third of the price of the outsourcing foam plates based on the same volume.

Description

technical field [0001] The invention relates to the field of waste recycling and reuse of refractory materials, in particular to a pressed reinforcement board prepared by using recycled polyurethane foam waste and its technology. Background technique [0002] After the polyurethane foam waste is produced, since the waste is a network-like three-dimensional polymer structure due to cross-linking, if it cannot be effectively recycled or disposed of in other ways, it is very difficult to degrade in the natural environment, in other words, it is not perishable. , if it is incinerated, it will produce toxic and harmful substances, which will seriously pollute the air. [0003] Circular economy is essentially an ecological economy, which requires the use of ecological laws rather than mechanistic laws to guide the economic activities of human society. The difference between the traditional economy and the circular economy is that the traditional economy is a linear economy with a...

AI Technical Summary

Problems solved by technology

[0002] After the polyurethane foam waste is produced, since the waste is a network-like three-dimensional polymer structure due to cross-linking, if it cannot be effectively recycled or disposed of in other ways, it is very difficult to degrade in the natural environment, in other words, it is not perishable. , if it is incinerated, it will produce toxic and harmful substances, which will seriously pollute the air