CHEN Xuliang, REN Qiang, SONG Yan, et al. Ammonium carbamate from diethanolamine for green foaming of polyurethanes with carbon dioxide[J]. CIESC Journal, 2017, (11): 4383-4389.
CHEN Xuliang, REN Qiang, SONG Yan, et al. Ammonium carbamate from diethanolamine for green foaming of polyurethanes with carbon dioxide[J]. CIESC Journal, 2017, (11): 4383-4389.DOI: 10.11949/j.issn.0438-1157.20170304.
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.