Title :
Study of blend films from methacryloyl guar gum and sodium alginate
Author :
Xiao, Wenfa ; Dong, Litao
Author_Institution :
Coll. of Chem. & Chem. Eng., Shanghai Univ. of Eng. Sci., Shanghai, China
Abstract :
Films were prepared by the casting method using sodium alginate (SA) and methacryloyl guar gum (MAG) in different ratios. The concentration of SA ranged from 0% to 50% (v/v). Water vapor transmission rate and oxygen permeability of the films were investigated. Films were evaluated for mechanical and antibacterial properties. The water vapor transmission rate did not change significantly upon addition of SA. Films containing 15% (v/v) SA showed very low oxygen permeability, good tensile and puncture strength. The antimicrobial activity of films containing 15% (v/v) SA was comparable to MAG films against Escherichia coli and Staphylococcus aureus. Composite films obtained from SA and MAG may reduce environmental problems associated with synthetic packaging.
Keywords :
casting; chemical industry; environmental factors; films; microorganisms; permeability; polymer blends; sodium compounds; tensile strength; Escherichia coli; Staphylococcus aureus; antibacterial property; antimicrobial activity; blend film; casting method; mechanical property; methacryloyl guar gum; oxygen permeability; puncture strength; sodium alginate; tensile strength; water vapor transmission rate; Anti-bacterial; Films; Mechanical factors; Oxidation; Packaging; Permeability; antimicrobial activity; blend film; mechanical properties; methacryloyl guar gum; sodium alginate;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5987268