Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings
Abdel Kader, A., Samahy, M., Mohramb, M., H. Abdel Rehim, M. (2021). Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings. EKB Journal Management System, 64(12), 7147-7156. doi: 10.21608/ejchem.2021.84381.4132
Amal Abdel Kader; Magda Samahy; Maysa E. Mohramb; Mona H. Abdel Rehim. "Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings". EKB Journal Management System, 64, 12, 2021, 7147-7156. doi: 10.21608/ejchem.2021.84381.4132
Abdel Kader, A., Samahy, M., Mohramb, M., H. Abdel Rehim, M. (2021). 'Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings', EKB Journal Management System, 64(12), pp. 7147-7156. doi: 10.21608/ejchem.2021.84381.4132
Abdel Kader, A., Samahy, M., Mohramb, M., H. Abdel Rehim, M. Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings. EKB Journal Management System, 2021; 64(12): 7147-7156. doi: 10.21608/ejchem.2021.84381.4132

Assessment of Mechanical, Water Barrier and Anti-Microbial Properties of Paper Sheets Loaded with Hyperbranched Polyester/ Graphene Oxide Composite and Effect of FlaxSeed-Gel Coatings

Egyptian Journal of Chemistry
Article 29, Volume 64, Issue 12, December 2021, Page 7147-7156  XML PDF (850.45 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2021.84381.4132
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Authors
Amal Abdel Kader1; Magda Samahy2; Maysa E. Mohramb3; Mona H. Abdel Rehim email 4
1Cellulose and Paper Department, National Research Center,Giza, Egypt
2Packaging Materials Department, NRC
3a Department of Organometallic and Organometalloid Chemistry, b Microbial Chemistry Department, National Research Centre,
4Packing dept., NRC
Abstract
Hyperbranched polyester/graphene oxide (HPES/GO) is prepared by in-situ polymerization technique to ensure complete homogeneity of GO in the formed composite. Chemical structure of the composite is studied using FTIR and its thermal stability is investigated by TGA. The prepared composite is used as active filler for cellulosic paper through additions of different ratios during sheets-making. Physical and mechanical properties beside thermal stability of the paper sheets have been examined. The results showed that both density and thermal stability of loaded paper are increased while porosity is decreased significantly with increasing amount of filer. However, the paper sheets demonstrated very low water permeability when loaded with 20% PES/GO. Paper sheets dipped for 1 min. in flaxseed-gel showed improved water vapor permeability compared with uncoated sheets. Moreover, the loaded sheets acquired significant antibacterial activity against different microorganisms. This property is declined upon coating with flax seed gel but still higher than blank sheets.
Keywords
Hyperbranched polyester; Graphene oxide; Paper sheets; Mechanical properties; Water absorption; Antimicrobial activity; Flax seed gel
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