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Munsin, R., et al. Energy Conversion and Management 98 (2015): 282-289.
Glycerol ethoxylate has been investigated as an effective ignition improver for hydrous ethanol fuels used in compression ignition (CI) engines. In this study, 5% glycerol ethoxylate (5%GE) was blended with hydrous ethanol (Eh95) and compared with a commercial additive-containing ethanol blend (ED95) and neat Eh95. Injection and combustion behaviors were evaluated under simulated CI engine conditions using a Rapid Compression and Expansion Machine (RCEM) and Zeuch-type injection rate measurement system.
The results demonstrated that the addition of glycerol ethoxylate significantly altered the injection dynamics. Compared to Eh95, both ED95 and 5%GE exhibited reduced maximum injection rates (by \~10%) and lower discharge coefficients (by 6-8%), requiring longer injection durations to maintain equivalent energy input. Ignition delay times were shortened by 0.1 ms for 5%GE, indicating enhanced ignition quality.
Combustion analysis revealed that glycerol ethoxylate not only improved ignition delay but also enhanced the heat release during the premixed combustion phase-contributing to more stable combustion and potentially lower engine noise. While the impact on average flame temperature was minor, both 5%GE and ED95 influenced localized temperature and soot formation. Early and elevated soot emissions were observed, correlating with advanced ignition timing.
These findings suggest that glycerol ethoxylate is a viable additive for improving the combustion performance of hydrous ethanol in CI engines, offering a promising route toward cleaner and more efficient biofuel utilization.
Wang, Hongdong, et al. Langmuir 40.13 (2024): 6816-6823.
Glycerol ethoxylate (GE) has emerged as a functional additive for enhancing the lubricity and structural integrity of hydrogel-based biomaterials. In a recent study, GE was incorporated into visible light-induced poly(vinylpyrrolidone) (PVP) hydrogels, synthesized via copolymerization of 1-vinyl-2-pyrrolidone (NVP) and poly(ethylene glycol) diacrylate (PEGDA), to develop advanced ocular lubricants. The resulting GE/PVP composite hydrogels exhibited significantly improved lubrication performance and biocompatibility, making them promising candidates for ocular surface protection.
Incorporating 3 wt% GE yielded optimal results, with scanning electron microscopy revealing a denser and more uniform porous structure. This structural enhancement reduced the hydrogel's coefficient of friction (COF) by over 50%, achieving superlubricity (COF ≈ 0.005). Mechanistically, GE acts by lowering the surface tension and promoting hydration, thereby reducing interfacial friction during blinking. However, excess GE (6 wt%) compromised the hydrogel matrix, leading to structural collapse and diminished lubrication efficacy.
Importantly, cytotoxicity assays confirmed that GE-containing hydrogels maintained excellent biocompatibility, aligning with the stringent requirements for ophthalmic applications. These findings suggest that glycerol ethoxylate serves a dual function: improving the hydrogel network architecture and enhancing lubrication properties.
Overall, this study demonstrates that glycerol ethoxylate can be effectively used for the preparation of next-generation hydrogels, offering a promising strategy for treating dry eye syndrome and other ocular surface disorders requiring stable, biocompatible lubrication.
What is the chemical formula of Glycerol, ethoxylated?
The chemical formula of Glycerol, ethoxylated is C9H20O6.
What are some synonyms for Glycerol, ethoxylated?
Some synonyms for Glycerol, ethoxylated are PEG Glyceryl ether, Polyoxyethylene glyceryl ether, and Glycereth.
What is the IUPAC name for Glycerol, ethoxylated?
The IUPAC name for Glycerol, ethoxylated is 2-[2,3-Bis(2-hydroxyethoxy)propoxy]ethanol.
What is the boiling point of Glycerol, ethoxylated?
The boiling point of Glycerol, ethoxylated is greater than 200 °C.
What is the density of Glycerol, ethoxylated?
The density of Glycerol, ethoxylated is 1.138g/ml.
What are the typical applications of Glycerol, ethoxylated?
The typical applications of Glycerol, ethoxylated include use as a solvent, emulsifying agent, dispersing agent, and solubilizing agent.
What is the percentage of actives in Glycerol, ethoxylated?
The percentage of actives in Glycerol, ethoxylated is 95%.
In what physical states can Glycerol, ethoxylated be found?
Glycerol, ethoxylated can be found in solid, paste, or liquid form.
What is the pH of Glycerol, ethoxylated when dissolved in water?
The pH of Glycerol, ethoxylated is 6-8 when dissolved in water at a concentration of 100g/l at 20 °C.
What is the CAS number of Glycerol, ethoxylated?
The CAS number of Glycerol, ethoxylated is 31694-55-0.
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