caa a22 4500 445384972 CHVBK 20180317143029.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10924-011-0309-1 doi (NATIONALLICENCE)springer-10.1007/s10924-011-0309-1 Preparation and Properties of Biodegradable Foams [Elektronische Daten] [Jacqueline Stagner, Ramani Narayan] Foam extrusion of biodegradable polyester [poly(butylene adipate-co-terephthalate) (PBAT)] and its blends with maleated thermoplastic starch (MTPS) using a chemical blowing agent was performed. The effect of MTPS and percentage of chemical blowing agent on various foam properties is discussed. In general, an increased amount of PBAT in the foams improves the properties of the foams. The foam samples were characterized by measurements of density, expansion ratio, specific length, compressive strength, resiliency, moisture sorption, and imaging using digital light microscopy. Density, expansion ratio, and specific length measurements show that the best characteristics of lowest density, highest expansion ratio, and highest specific length are exhibited by the PBAT samples. The compressive strength and foam density exhibit a power-law relationship. Greater amounts of PBAT in the samples increase the resiliency and decrease the steady state weight gain during moisture sorption. All samples show regions of unfoamed material when only 3% chemical blowing agent is used, but when 5 and 7% chemical blowing agent is used, the samples exhibit cells throughout the matrix. Springer Science+Business Media, LLC, 2011 Thermoplastic starch nationallicence Foam nationallicence Biodegradable nationallicence PBAT nationallicence Stagner Jacqueline Biobased Material Research Group (BMRG), Michigan State University, East Lansing, MI, USA aut Narayan Ramani Biobased Material Research Group (BMRG), Michigan State University, East Lansing, MI, USA aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/3(2011-09-01), 598-606 1566-2543 19:3<598 2011 19 10924 https://doi.org/10.1007/s10924-011-0309-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-011-0309-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stagner Jacqueline Biobased Material Research Group (BMRG), Michigan State University, East Lansing, MI, USA aut NATIONALLICENCE 700 1- Narayan Ramani Biobased Material Research Group (BMRG), Michigan State University, East Lansing, MI, USA aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/3(2011-09-01), 598-606 1566-2543 19:3<598 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer