Effect of the Glycerol and Lignin Extracted from Piassava Fiber in Cassava and Corn Starch Films

Materials Research

Cleidiene Souza De Miranda¹  Marina Santos Ferreira¹  Mariana Tibo Magalhães¹  Ana Paula Bispo Gonçalves¹  Jamerson Carneiro De Oliveira¹  Danilo Hansen Guimarães¹  Nadia Mamede José¹ 

关键词: starch;    lignin;    glycerol;    properties;   

DOI  :  10.1590/1516-1439.370414

来源: SciELO

【 摘 要 】

Several alternatives have been considered to minimize the environmental impact caused by conventional polymers. This study aims to evaluate the chemical, mechanical and morphological properties of flexible thermoplastic films of cassava and corn starch, using glycerol and lignin as plasticizers and reinforcement. The films were produced through casting. It was observed that the presence of lignin effectively increased the maximum stress and the elastic modulus by about of 840% and 4200%, respectively, when comparing to the film containing only glycerol. In addition, lignin improved thermal properties, modified some structural properties and made the surface of the material rougher.

【 授权许可】

CC BY   
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