New water soluble EP additive for environment friendly fluids

2002 ◽  
Vol 54 (6) ◽  
pp. 285-290 ◽  
Author(s):  
Fabrice Domingues Dos Santos ◽  
Francois Guillemet
Keyword(s):  
Water Soluble ◽  
Environment Friendly ◽  
Ep Additive

Tribological Properties and Worn Surface Analysis Generated by Sulfur- and Phosphorus-Free Molybdenum-Containing Water-Based Lubricant

2012 ◽  
Vol 591-593 ◽  
pp. 1054-1057 ◽  
Author(s):  
Li Li Yan ◽  
Cheng Biao Wang ◽  
Wen Yue ◽  
Bo Xu
Keyword(s):  
Tribological Properties ◽  
Photoelectron Spectroscopy ◽  
Environmental Concern ◽  
Nitrogen Compound ◽  
Water Soluble ◽  
Environment Friendly ◽  
Water Based ◽  
Modern Manufacturing ◽  
Worn Surface ◽  
Reducing Properties

The development of environment-friendly water-based lubricants has been paid more and more attention in modern manufacturing due to environmental concern and human health. In this paper, several water-soluble molybdenum-containing additives (WMCAs) were synthesized, and characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The tribological properties of WMCAs in water were evaluated by a four-ball tester. The results indicated that WMCAs exhibited beneficial effect on the anti-wear and friction-reducing properties of water under all tested concentrations, which could be attributed to organic nitrogen compound, iron oxides and MoO3 in WMCAs tribofilm.

scholarly journals Microalgae as a Source of Mycosporine-like Amino Acids (MAAs); Advances and Future Prospects

2021 ◽  
Vol 18 (23) ◽  
pp. 12402
Author(s):  
Subhisha Raj ◽  
Anusree M. Kuniyil ◽  
Arathi Sreenikethanam ◽  
Poornachandar Gugulothu ◽  
Rajesh Banu Jeyakumar ◽  
...  
Keyword(s):  
Amino Acids ◽  
Large Scale ◽  
Water Soluble ◽  
Low Molecular Weight ◽  
Environment Friendly ◽  
Cultural Conditions ◽  
Short Generation Time ◽  
Anti Oxidant ◽  
Therapeutic Properties ◽  
Terrestrial Fungi

Mycosporine-like amino acids (MAAs), are secondary metabolites, first reported in 1960 and found to be associated with the light-stimulated sporulation in terrestrial fungi. MAAs are nitrogenous, low molecular weight, water soluble compounds, which are highly stable with cyclohexenone or cycloheximine rings to store the free radicals. Microalgae are considered as a good source of different kinds of MAAs, which, in turn, has its own application in various industries due to its UV absorbing, anti-oxidant and therapeutic properties. Microalgae can be easily cultivated and requires a very short generation time, which makes them environment friendly source of biomolecules such as mycosporine-like amino acids. Modifying the cultural conditions along withmanipulation of genes associated with mycosporine-like amino acids biosynthesis can help to enhance MAAs synthesis and, in turn, can make microalgae suitable bio-refinery for large scale MAAs production. This review focuses on properties and therapeutic applications of mycosporine like amino acids derived from microalgae. Further attention is drawn on various culture and genetic engineering approaches to enhance the MAAs production in microalgae.

Shape Memory Finishing of Wool Fabrics and Garments

2012 ◽  
Vol 441 ◽  
pp. 235-238
Author(s):  
Jing Lu ◽  
Jin Lian Hu ◽  
Yong Zhu ◽  
Yi Jun Liu
Keyword(s):  
Shape Memory ◽  
Water Soluble ◽  
Woven Fabric ◽  
Resistance Pattern ◽  
Knitted Fabric ◽  
Washing Machine ◽  
Pattern Design ◽  
Environment Friendly ◽  
Wool Fabrics ◽  
Finishing Process

Shape memory finishing is suitable to wool knitted and woven fabric. The chemical is water soluble and environment friendly. The shape memory treated wool knitted fabric and garments achieve good dimensional stability, pill resistance, pattern design, crease retention, wrinkle recovery and bagging recovery effects. The finishing process is simple, saving water and can be done using the normal common washing machine. Shape memory chemical is also used on cashmere finishing increasing the piling rates.

scholarly journals A water soluble heteropolyoxotungstate as a selective, efficient and environment friendly oxidation catalyst

2009 ◽  
Vol 121 (4) ◽  
pp. 377-385 ◽  
Author(s):  
Prasenjit Maity ◽  
Double Mukesh ◽  
Sumit Bhaduri ◽  
Goutam Kumar Lahiri
Keyword(s):  
Water Soluble ◽  
Oxidation Catalyst ◽  
Environment Friendly

Novel green method of preparation of a poly (ethylene oxide)/graphene nanocomposite using organic salt assisted dispersion

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30555-30563 ◽  
Author(s):  
Siddheshwar B. Jagtap ◽  
Ramakant K. Kushwaha ◽  
Debdatta Ratna
Keyword(s):  
Ethylene Oxide ◽  
Water Soluble ◽  
Organic Salt ◽  
Green Method ◽  
Environment Friendly ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Poly Ethylene Oxide ◽  
Graphene Nanocomposite ◽  
Poly Ethylene

Novel green method was developed to prepare nanocomposites of poly (ethylene oxide) (PEO) and graphene in water. This method is environment friendly with no health hazards and can be adapted to any other water soluble polymers.

scholarly journals Erasable and recreatable two-dimensional electron gas at the heterointerface of SrTiO3 and a water-dissolvable overlayer

2019 ◽  
Vol 5 (8) ◽  
pp. eaaw7286 ◽  
Author(s):  
Kun Han ◽  
Kaige Hu ◽  
Xiao Li ◽  
Ke Huang ◽  
Zhen Huang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Electronic Waste ◽  
Electron Gas ◽  
Water Soluble ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Environment Friendly ◽  
Dimensional Electron Gas ◽  
Human Health Effects

While benefiting greatly from electronics, our society also faces a major problem of electronic waste, which has already caused environmental pollution and adverse human health effects. Therefore, recyclability becomes a must-have feature in future electronics. Here, we demonstrate an erasable and recreatable two-dimensional electron gas (2DEG), which can be easily created and patterned by depositing a water-dissolvable overlayer of amorphous Sr3Al2O6 (a-SAO) on SrTiO3 (STO) at room temperature. The 2DEG can be repeatedly erased or recreated by depositing the a-SAO or dissolving in water, respectively. Photoluminescence results show that the 2DEG arises from the a-SAO–induced oxygen vacancy. Furthermore, by gradually depleting the 2DEG, a transition of nonlinear to linear Hall effect is observed, demonstrating an unexpected interfacial band structure. The convenience and repeatability in the creation of the water-dissolvable 2DEG with rich physics could potentially contribute to the exploration of next generation electronics, such as environment-friendly or water-soluble electronics.

Filter-Less Purification of Grinding Fluid by Using PGA Based Flocculant

2011 ◽  
Vol 325 ◽  
pp. 213-218 ◽  
Author(s):  
Shinichi Ninomiya ◽  
Manabu Iwai ◽  
Kiyoshi Suzuki
Keyword(s):  
Water Soluble ◽  
Precision Machining ◽  
Environment Friendly ◽  
Abrasive Grains ◽  
Grinding Fluid ◽  
Combined Use ◽  
Micro Bubble ◽  
Protection Property ◽  
Suspended Matters ◽  
Free Abrasive

Water soluble coolant has been widely used as machining fluid owing to its environment- friendly characteristic, fine protection property and low price. However, as this type of coolant is perishable, a large amount of labor is required for its maintenance of the coolant. Moreover, in high precision machining, separation of minute machined chips generated during grinding and machine oil from the coolant is indispensable, and a special filtering-device and other equipments are necessary. In this paper, a method to purify water-soluble grinding fluid using PGA based flocculant was examined. As a result of experiments, it was clarified that the suspended matters such as grinding swarf or free abrasive grains in the fluid can be removed at the collection rate of more than 99%. A new filter-less coolant purification technology was established by combined use of micro bubble coolant.

scholarly journals The influence of the cationic carbenes on the initiation kinetics of ruthenium-based metathesis catalysts; a DFT study

2018 ◽  
Vol 14 ◽  
pp. 2872-2880 ◽  
Author(s):  
Magdalena Jawiczuk ◽  
Angelika Janaszkiewicz ◽  
Bartosz Trzaskowski
Keyword(s):  
Positive Charge ◽  
Water Soluble ◽  
Free Energies ◽  
Environment Friendly ◽  
Ancillary Ligands ◽  
Grubbs Catalysts ◽  
Bond Strengths ◽  
Metathesis Catalysts ◽  
Kinetics Of ◽  
Rare Group

Cationic carbenes are a relatively new and rare group of ancillary ligands, which have shown their superior activity in a number of challenging catalytic reactions. In ruthenium-based metathesis catalysis they are often used as ammonium tags, to provide water-soluble, environment-friendly catalysts. In this work we performed computational studies on three cationic carbenes with the formal positive charge located at different distances from the carbene carbon. We show that the predicted initiation rates of Grubbs, indenylidene, and Hoveyda–Grubbs-like complexes incorporating these carbenes show little variance and are similar to initiation rates of standard Grubbs, indenylidene, and Hoveyda–Grubbs catalysts. In all investigated cases the partial charge of the carbene carbon atom is similar, resulting in comparable Ccarbene–Ru bond strengths and Ru–P/O dissociation Gibbs free energies.

Diamondlike Carbon-Coated Dies for Deep Drawing of Aluminum Sheets

1999 ◽  
Vol 121 (4) ◽  
pp. 674-678 ◽  
Author(s):  
M. Murakawa ◽  
N. Koga ◽  
S. Takeuchi
Keyword(s):  
Thermal Spraying ◽  
Cost Effective ◽  
Water Soluble ◽  
Premature Rupture ◽  
Environment Friendly ◽  
Carbide Alloy ◽  
Deep Draw ◽  
Aluminum Sheets ◽  
Diamondlike Carbon ◽  
Carbon Coated

Soft and hard diamondlike carbon die coatings were used to deep draw aluminum sheets with a very light and environment-friendly water-soluble oil lubricant and even without a lubricant. The water-soluble oil lubricant with poor lubrication ability caused premature rupture of the aluminum blank when drawn with a noncoated steel die, whereas a die coated with soft diamondlike carbon (WC/C) had a lifetime of over 7000 drawing operations. A cost-effective die could be made of a die steel body on which a sintered tungsten carbide alloy overlayer was deposited by high-velocity thermal spraying and further coated with a hard diamondlike carbon (DLC), which gave a life of up to 6000 operations even without a lubricant. Tool life was almost equal to that for a solid sintered carbide alloy die coated with DLC.

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