caa a22 4500 467886571 CHVBK 20180406152736.0 cr unu---uuuuu 170328e20060601xx s 000 0 eng 10.1007/s10924-006-0008-5 doi (NATIONALLICENCE)springer-10.1007/s10924-006-0008-5 Influence of Fibers on the Mechanical Properties of Cassava Starch Foams [Elektronische Daten] [Laura Carr, Duclerc Parra, Patricia Ponce, Ademar Lugão, Pedro Buchler] The utilization of renewable resources in packaging can provide solutions to ecological problems such as waste quantity. Agricultural resources are alternative raw materials, among which there is starch, a natural polysaccharide that can be used to form resistant foam under wet and warm conditions. The starch foam is obtained by thermo pressing process where cassava starch, water and additives are processed to form a rigid structure by swelling, gelatinization and network formation. Natural fibers can be used to improve the mechanical properties of starch foams. In this project was investigated the influence of the addition of fibers in the levels of 1, 2 and 3% of cassava (short fiber) and 1, 2 and 3% of wheat fiber (powered fiber) in the starch dough. The foams were characterized by physical methods of strength, flexibility, density and by Scanning Electron Microscopy (SEM). The increase in fibers quantity has resulted in foams with higher density and less flexibility, whatever the fiber type. Most fibers quantity did not improve the foam strength. Foam made with 1% of cassava fiber showed higher compression strength; by increasing the percentage quantity there was a decrease on the compression resistance. Foam made with wheat fiber presented a lower result in 2%. The fiber type had no statistical significance in strength, flexibility and density foam. Only the fiber quantity was significant. The results showed that both fibers presented limited dimensions to improve the reinforcement of the starch foams up to 1%. Springer Science+Business Media, Inc., 2006 Starch foam nationallicence Natural fiber nationallicence Biodegradable packaging nationallicence Cassava starch nationallicence Carr Laura Chemical Engeneering Department, São Paulo University, São Paulo, SP, Brazil aut Parra Duclerc Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut Ponce Patricia Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut Lugão Ademar Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut Buchler Pedro Chemical Engeneering Department, São Paulo University, São Paulo, SP, Brazil aut Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 179-183 1566-2543 14:2<179 2006 14 10924 https://doi.org/10.1007/s10924-006-0008-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-006-0008-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Carr Laura Chemical Engeneering Department, São Paulo University, São Paulo, SP, Brazil aut NATIONALLICENCE 700 1- Parra Duclerc Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut NATIONALLICENCE 700 1- Ponce Patricia Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut NATIONALLICENCE 700 1- Lugão Ademar Chemical and Environmental Center (CQMA), Nuclear and Energy Research Institute (IPEN), São Paulo, SP, Brazil aut NATIONALLICENCE 700 1- Buchler Pedro Chemical Engeneering Department, São Paulo University, São Paulo, SP, Brazil aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 14/2(2006-06-01), 179-183 1566-2543 14:2<179 2006 14 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer