Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Cure Kinetics of Epoxy/Graphene Oxide (Go) Nanocomposites: Effect of Starch Functionalization of Go Nanosheets Publisher



Jouyandeh M1 ; Yarahmadi E2 ; Didehban K2 ; Ghiyasi S3 ; Paran SMR1 ; Puglia D4 ; Ali JA5 ; Jannesari A6 ; Saeb MR6 ; Ranjbar Z7 ; Ganjali MR1, 8
Authors
Show Affiliations
Authors Affiliations
  1. 1. Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  2. 2. Department of Chemistry, Payame Noor University, P.O. Box:19395-3697, Tehran, Iran
  3. 3. Department of Environmental Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
  4. 4. University of Perugia, Department of Civil and Environmental Engineering, Strada di Pentima 4, Terni, 05100, Italy
  5. 5. Department of Petroleum Engineering, Faculty of Engineering, Soran University, Kurdistan Region, Iraq
  6. 6. Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran
  7. 7. Department of Surface Coating and Corrosion, Institute for Color Science and Technology, Tehran, Iran
  8. 8. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Progress in Organic Coatings Published:2019


Abstract

Graphene oxide (GO) nanoflakes are reactive towards both epoxy resin and amine curing agent, but their inevitable agglomeration worsens resin/hardener/nanoflake interfacial interactions. In this work, starch was used to functionalize GO nanoflakes. Isoconversional cure kinetics of low concentration epoxy/GO and epoxy/starch-functionalized GO (GO-St) nanocomposites was then studied based on nonisothermal differential scanning calorimetry (DSC) analyses to evaluate the effect of starch-aided epoxy/amine/GO curing reactions. Qualitative analysis of epoxy network formation governed by GO and GO-St was done in terms of Cure Index, where Good and Excellent cure were interestingly observed as a result of starch functionalization. Quantitative cure analyses based on integral and differential isoconversional methods were also allowed for understanding conversion-dependent cure kinetics in terms of activation energy (Eα) alteration. The activation energy increased for neat epoxy system at later stage of curing reaction. However, an almost constant trend was seen for the activation energy of GO incorporated epoxy nanocomposites. Observation of a decline in Eα values for epoxy/GO-St system with respect to epoxy/GO was due to the autocatalytic curing reaction, which was attributed to facile epoxide ring opening by OH groups of starch. A good confidence was observed between calculated and observed calorimetric data. © 2019 Elsevier B.V.
Related Docs
View other Related Docs
1. Curing Epoxy With Ethylenediaminetetraacetic Acid (Edta) Surface-Functionalized Coxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
2. Curing Epoxy With Polyvinylpyrrolidone (Pvp) Surface-Functionalized Znxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
3. Curing Epoxy With Electrochemically Synthesized Znxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
4. Cure Index Demonstrates Curing of Epoxy Composites Containing Silica Nanoparticles of Variable Morphology and Porosity, Progress in Organic Coatings (2019)
5. Curing Epoxy With Polyvinyl Chloride (Pvc) Surface-Functionalized Coxfe3-Xo4 Nanoparticles, Progress in Organic Coatings (2019)
6. Curing Epoxy With Electrochemically Synthesized Coxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
7. Curing Epoxy With Polyvinylpyrrolidone (Pvp) Surface-Functionalized Mnxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
8. Effect of Surface Treatment of Halloysite Nanotubes (Hnts) on the Kinetics of Epoxy Resin Cure With Amines, Polymers (2020)
Experts (# of related papers)
Mahmoud Reza Hadjighassem (1)
Other Related Docs
9. Curing Epoxy With Polyethylene Glycol (Peg) Surface-Functionalized Nixfe3-Xo4magnetic Nanoparticles, Progress in Organic Coatings (2019)
10. Properties of Nano-Fe3o4 Incorporated Epoxy Coatings From Cure Index Perspective, Progress in Organic Coatings (2019)
11. Exploring Curing Potential of Epoxy Nanocomposites Containing Nitrate Anion Intercalated Mg–Al–Ldh With Cure Index, Progress in Organic Coatings (2020)
12. Curing Epoxy With Electrochemically Synthesized Nixfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
13. Nonisothermal Cure Kinetics of Epoxy/Znxfe3- Xo4 Nanocomposites, Progress in Organic Coatings (2019)
14. Surface Chemistry of Halloysite Nanotubes Controls the Curability of Low Filled Epoxy Nanocomposites, Progress in Organic Coatings (2019)
15. Development of Mg-Zn-Al-Co3 Ternary Ldh and Its Curability in Epoxy/Amine System, Progress in Organic Coatings (2019)
16. Epoxy/Layered Double Hydroxide (Ldh) Nanocomposites: Synthesis, Characterization, and Excellent Cure Feature of Nitrate Anion Intercalated Zn-Al Ldh, Progress in Organic Coatings (2019)
17. Effect of Nickel Doping on the Cure Kinetics of Epoxy/Fe3 O4 Nanocomposites, Journal of Composites Science (2020)
18. Curing Epoxy With Electrochemically Synthesized Gdxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
19. Epoxy/Zn-Al-Co3 Ldh Nanocomposites: Curability Assessment, Progress in Organic Coatings (2020)
20. Curing Epoxy With Polyethylene Glycol (Peg) Surface-Functionalized Gdxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
21. Curing Epoxy With Polyvinylpyrrolidone (Pvp) Surface-Functionalized Nixfe3-Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
22. Curing Epoxy With Electrochemically Synthesized Mnxfe3-Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
23. Unconditionally Blue: Curing Epoxy With Polyethylene Glycol (Peg) Surface-Functionalized Znxfe3- Xo4 Magnetic Nanoparticles, Progress in Organic Coatings (2019)
24. Bulk-Surface Modification of Nanoparticles for Developing Highly-Crosslinked Polymer Nanocomposites, Polymers (2020)
25. Kinetics of Cross-Linking Reaction of Epoxy Resin With Hydroxyapatite-Functionalized Layered Double Hydroxides, Polymers (2020)
26. Curing Epoxy With Mg-Al Ldh Nanoplatelets Intercalated With Carbonate Ion, Progress in Organic Coatings (2019)
27. Thermal Analysis of Crosslinking Reactions in Epoxy Nanocomposites Containing Polyvinyl Chloride (Pvc)-Functionalized Nickel-Doped Nano-Fe3o4, Journal of Composites Science (2020)
28. Cure Index for Labeling Curing Potential of Epoxy/Ldh Nanocomposites: A Case Study on Nitrate Anion Intercalated Ni-Al-Ldh, Progress in Organic Coatings (2019)
29. Nonisothermal Cure Kinetics of Epoxy/Mnxfe3-Xo4 Nanocomposites, Progress in Organic Coatings (2020)
30. Highly Curable Self-Healing Vitrimer-Like Cellulose-Modified Halloysite Nanotube/Epoxy Nanocomposite Coatings, Chemical Engineering Journal (2020)
31. Cure Kinetics of Samarium-Doped Fe3o4/Epoxy Nanocomposites, Journal of Composites Science (2022)
32. A Comparative Study on Cure Kinetics of Layered Double Hydroxide (Ldh)/Epoxy Nanocomposites, Journal of Composites Science (2020)
33. Imidazole-Functionalized Nitrogen-Rich Mg-Al-Co3 Layered Double Hydroxide for Developing Highly Crosslinkable Epoxy With High Thermal and Mechanical Properties, Colloids and Surfaces A: Physicochemical and Engineering Aspects (2021)
34. Highly Antifouling Polymer-Nanoparticle-Nanoparticle/Polymer Hybrid Membranes, Science of the Total Environment (2022)
35. Nonisothermal Cure Kinetics of Epoxy/Polyvinylpyrrolidone Functionalized Superparamagnetic Nano-Fe3o4 Composites: Effect of Zn and Mn Doping, Journal of Composites Science (2020)
36. Hyperbranched Polyethylenimine Functionalized Silica/Polysulfone Nanocomposite Membranes for Water Purification, Chemosphere (2022)
37. Electroactive Bio-Epoxy Incorporated Chitosan-Oligoaniline As an Advanced Hydrogel Coating for Neural Interfaces, Progress in Organic Coatings (2019)
38. Conductive Biomaterials As Nerve Conduits: Recent Advances and Future Challenges, Applied Materials Today (2020)
39. From Microporous to Mesoporous Mineral Frameworks: An Alliance Between Zeolite and Chitosan, Carbohydrate Research (2020)
40. Thermo-Sensitive Polymers in Medicine: A Review, European Polymer Journal (2019)