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7489346 
Journal Article 
Ammonium carbamate from diethanolamine for green foaming of polyurethanes with carbon dioxide 
Chen, X; Ren, Q; Song, Y; Wu, D; Li, J 
2017 
Materials China 
68 
11 
4383-4389 
Chinese 
Diethanol ammonium carbamate (DEAC) was prepared by reaction of diethanolamine (DEA) with carbon dioxide. DEAC has onset decomposition temperature round 54℃. Addition of DEAC as reactive blowing agent into common rigid polyurethane foaming formulation gave foams with densities in the range of 90 to 150 kg·m-3 and compressive strengths in the range of 0.02 to 1.65 MPa. DEA can be used as CO2 absorbents in coal-burn power generation plant to reduce greenhouse gas emission. DEAC can be obtained as byproduct from coal-burn power station with low cost. This novel approach is environmentally friendly, cost effective and promising to open up a new platform for green foaming of polyurethanes. © All Right Reserved. 
Ammonium carbamate; Carbon dioxide; Diethanolamine; Foam; Polyurethane; Blowing agents; Compressive strength; Cost effectiveness; Ethanolamines; Foams; Greenhouse gases; Polyurethanes; Ammonium carbamates; Cost effective; Diethanolamine; Low costs; Onset decomposition temperatures; Polyurethane foaming; Power generation plants; Power station; Carbon dioxide 
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