Abstract
Waste polyurethane foam is a kind of manufacturing and construction industry waste used as raw material to produce polyol polymer with high added value. In this way, the recycling economy of waste polyurethane foam is developed. In this paper, a production process line for recycling waste polyurethane foam was designed and established. The economic benefits of the production line were evaluated with the production cost as the index and the actual production data. Compared with the price of commercial polyether polyol, the price of regenerated polyether polyol was 13, 920 CNY/t, which was reduced by 30.4%. The re-foaming of the regenerated polyether polyol was observed by scanning electron microscope. The results showed that the polyurethane foam foamed with regenerated polyether polyol had a complete bubble structure. The bubble structure is regular and completely hexagonal, with a strong skeleton, an excellent cross-linking structure, and a uniform and dense bubble distribution. Therefore, the production process can be widely promoted as a sustainable, green, and high-value-added waste polyurethane treatment process.
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