TY - JOUR AU - Ciriminna, Rosaria AU - Marques, Ana C. AU - Bordado, João C. AU - de Schrijver, Aster AU - Pagliaro, Mario PY - 2014 DA - 2014/11/22 TI - GreenCaps: towards solid curing agents for sustainable polyurethane foams JO - Sustainable Chemical Processes SP - 24 VL - 2 IS - 1 AB - Testing and further investigation of organosilica microspheres functionalized with aqueous glycerol as solid curing agents for polyurethane (PU) foams confirms the potential of these materials to cure better and greener PU foams. The developed microspheres were found to be stable in the foam precursor mixture, allowing handling and mixing of the foam cans, and were shown to provide a slight improvement of the curing speed. The foams obtained from the froth containing the microspheres were found to maintain the level of quality of reference foam samples. Termed “GreenCaps”, these microspheres will subsequently be tested in pre-commercial applications. SN - 2043-7129 UR - https://doi.org/10.1186/s40508-014-0024-z DO - 10.1186/s40508-014-0024-z ID - Ciriminna2014 ER -