scholarly journals Choosing the Right Lignin to Fully Replace Bisphenol A in Epoxy Resin Formulation

ChemSusChem ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1184-1195
Author(s):  
Saeid Nikafshar ◽  
Jiarun Wang ◽  
Kevin Dunne ◽  
Prakit Sangthonganotai ◽  
Mojgan Nejad
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Resin Formulation ◽  
The Right

scholarly journals Studies on the Modification of Commercial Bisphenol-A-Based Epoxy Resin Using Different Multifunctional Epoxy Systems

2021 ◽  
Vol 2 (2) ◽  
pp. 419-430
Author(s):  
Ankur Bajpai ◽  
James R. Davidson ◽  
Colin Robert
Keyword(s):  
Mechanical Properties ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Bisphenol A ◽  
Epoxy Resin ◽  
Tensile Fracture ◽  
Chemical Structures ◽  
Amino Phenol ◽  
Epoxy Systems

The tensile fracture mechanics and thermo-mechanical properties of mixtures composed of two kinds of epoxy resins of different chemical structures and functional groups were studied. The base resin was a bi-functional epoxy resin based on diglycidyl ether of bisphenol-A (DGEBA) and the other resins were (a) distilled triglycidylether of meta-amino phenol (b) 1, 6–naphthalene di epoxy and (c) fluorene di epoxy. This research shows that a small number of multifunctional epoxy systems, both di- and tri-functional, can significantly increase tensile strength (14%) over neat DGEBA while having no negative impact on other mechanical properties including glass transition temperature and elastic modulus. In fact, when compared to unmodified DGEBA, the tri-functional epoxy shows a slight increase (5%) in glass transition temperature at 10 wt.% concentration. The enhanced crosslinking of DGEBA (90 wt.%)/distilled triglycidylether of meta-amino phenol (10 wt.%) blends may be the possible reason for the improved glass transition. Finally, the influence of strain rate, temperature and moisture were investigated for both the neat DGEBA and the best performing modified system. The neat DGEBA was steadily outperformed by its modified counterpart in every condition.

Diglycidyl ether of bisphenol-A epoxy resin modified using poly(ether ether ketone) with pendenttert-butyl groups

2007 ◽  
Vol 45 (17) ◽  
pp. 2481-2496 ◽  
Author(s):  
Bejoy Francis ◽  
Sabu Thomas ◽  
R. Sadhana ◽  
Nicole Thuaud ◽  
R. Ramaswamy ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Diglycidyl Ether ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

Enhanced flame retardancy of DGEBA epoxy resin with a novel bisphenol-A bridged cyclotriphosphazene

2017 ◽  
Vol 144 ◽  
pp. 292-303 ◽  
Author(s):  
Wen-Jun Liang ◽  
Bin Zhao ◽  
Cong-Yun Zhang ◽  
Rong-Kun Jian ◽  
Dong-Yue Liu ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Flame Retardancy

scholarly journals Preparation and Characterization of Green Epoxy Resin Composites and Its Use in Corrosion Resistance

2018 ◽  
Author(s):  
Abbas Hassan Faris
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Electrolyte Solutions ◽  
Kraft Lignin ◽  
Diglycidyl Ether ◽  
Kraft Pulping ◽  
Palm Tree ◽  
Scanning Calorimetry ◽  
Ft Ir ◽  
Nano Titanium Dioxide

In this work, appropriate alternative for diglycidyl ether bisphenol A (DGEBA) was found to avoid the destructive effects of bisphenol A. Lignin, an aromatic compound from palm tree leaves, was used as a renewable material to synthesize a bio-based epoxy resin. Lignin extracted using Kraft pulping process. Kraft Lignin was epoxidized with epichlorohydrin in alkaline medium. Nano-titanium dioxide was used as filler with ratio of 10% to prepare the green epoxy composite. The structure of the Kraft lignin and lignin-based epoxy resin was proven via Infrared spectra (FT-IR) were recorded using solid KBr disk by testing Shimadzu (FT-IR-8300) spectrophotometer. The thermal properties of the curing process of lignin-based epoxy resin and composite were investigate using Differential scanning calorimetry (DSC) analysis. Potentiodynamic measurements data revealed that the anti-corrosion performance of the lignin based epoxy resin. The study demonstrates successful of epoxidation of Kraft lignin. In addition, lignin based eopxy resin showed effective inhibitor for carbon steel in 3.5 wt. % NaCl electrolyte solutions

The Effect of Epoxide on Molecular Chain Relaxation on Bisphenol A Epoxy Resin after Curing

2021 ◽  
Author(s):  
Mingru Li ◽  
Zhuoli Cai ◽  
Huan Niu ◽  
Shengtao Li ◽  
Yafang Gao ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Molecular Chain

scholarly journals Sustainable access to fully biobased epoxidized vegetable oil thermoset materials prepared by thermal or UV-cationic processes

RSC Advances ◽  
2020 ◽  
Vol 10 (68) ◽  
pp. 41954-41966 ◽  
Author(s):  
Samuel Malburet ◽  
Chiara Di Mauro ◽  
Camilla Noè ◽  
Alice Mija ◽  
Marco Sangermano ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Epoxy Resin ◽  
Vegetable Oil ◽  
Epoxy Resins ◽  
Diglycidyl Ether

Beyond the need to find a non-toxic alternative to DiGlycidyl Ether of Bisphenol-A (DGEBA), the serious subject of non-epichlorohydrin epoxy resins production remains a crucial challenge that must be solved for the next epoxy resin generations.

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