Gelatin/piassava composites treated by electron beam radiation

Abstract

Piassava (Attalea funifera Mart) fiber has been investigated as reinforcement for polymer composites with potential for practical applications. The purpose of the present work was to assess the behavior of specimens of piassava fiber and gelatin irradiated with electron beam at different doses and percentage. The piassava/gelatin specimens were made with 5 and 10% (w/w) piassava fiber, gelatin 25% (w/w), glycerin as plasticizer and acrylamide as copolymer. The samples were irradiated up to 40 kGy using an electron beam accelerator, at room temperature in presence of air. Preliminary results showed mechanical properties enhancement with the increase in radiation dose.

Effect of electron beam irradiation on the mechanical properties of buriti fiber

“…Inter and intra-molecular reactions may promote crosslink and reticulate network in a macromolecular structure, either natural or synthetic, which has been irradiated. For instance, ionizing irradiation of a polymeric material is able to break chemical bonds and introduce modification in the material behavior [12][13][14]. Several works [15][16][17][18][19][20] have shown that macromolecular products such as natural fibers, biomaterials and polymers may improve their properties by ionizing irradiation as a result of crosslinking and scission processes, in which radicals are formed throughout the chains.…”

Efeito da radiação ionizante de feixe de elétrons em propriedades de biopolímeros comestíveis a base de proteína isolada de soja e fécula de mandioca

“…Os filmes foram caracterizados quanto a textura conforme experiência no laboratório (INAMURA et al, 2009;UEHARA et al, 2009;TAKINAMI et al, 2010;INAMURA et al, 2010;INAMURA & MASTRO, 2011 FIGURA 4 -Texturômetro TA-XT2 Stable Micro Systems utilizado para medições de propriedades mecânicas dos filmes a base de fécula de mandioca e PIS.…”