Even small amounts of elastane in cotton–elastane blended textiles can prevent fiber-to-fiber recycling strategies textile recycling. Herein, the selective separation from cotton blends was addressed by aminolytic degradation synthetic component. Polar aprotic solvents were tested as solvents, but side reactions impeded aminolysis with some them. Aminolysis succeeded under mild conditions using dimethyl sulfoxide combination diethylenetriamine and 1,5-diazabicyclo[4.3.0]non-5-ene a cleaving...

Abstract With the increasing application of template assisted syntheses in deep eutectic solvents and successful hydrophobic extraction processes, where microheterogeneity plays a major role, suggestions for novel which exhibit strong are desirable. Therefore, classical molecular dynamics simulations were carried out on solvent systems constructed choline chloride some its derivatives mixed with ethylene glycol molar composition 1 : 2 since this is optimal parent composition. The consisted...

Abstract Resulting properties of cotton and polyester blends make polycotton the most common fabric in textile industry. Separation technologies are key for chemical processing massive amount waste produced worldwide. The very different nature cellulose polyethylene terephthalate determines fractionation strategies to obtain two valuable monomaterial streams. In this work, we propose separation pathways seeking conversion both polymers. First, was depolymerised into its monomeric units...

Cellulose dissolution in mixtures of the ionic liquid 1-ethyl-3-methylimidazolium acetate with dimethylsulfoxide, [C2C1Im][OAc] + DMSO, have been kinetically compared using conventional heating and microwave a single-mode cavity semiconductor generator. Microwaves led to enhancements rate between 21 57% under different conditions temperature concentration liquid. Rate enhancement by microwaves prominently occurred at temperatures above 60 °C. Based on an Arrhenius plot wide-band dielectric...

Binary systems of two ionic liquids (ILs), 1-ethylpyridinium methanesulfonate [C2Py][MeSO3] and choline dihydrogen phosphate [Chol][H2PO4], water have been experimentally studied. Density, viscosity, electrical conductivity proton activity measured at several temperatures covering all the miscibility range. From density data, isobaric coefficient thermal expansion was calculated to study volumetric behavior mixtures. All data were fit using polynomial equations. The Vogel–Fulcher–Tamman...

Dyes are pollutants widely used in several industries that end up dumped as wastewater, contributing to water pollution. In the scope of improving quality, liquid-liquid extraction is a separation technique remove from water, due possibility recovering all involved agents. this work, deep eutectic solvents (DESs) based on mixtures thymol with menthol, coumarin, octanoic acid and decanoic were applied agents congo red water. Among studied solvents, those formed by organic acids showed...

Ionic liquids (ILs) hold great potential as solvents to dissolve, recycle, and regenerate cellulosic fabrics, but the dissolved cellulose material system requires greater study in conditions relevant fiber spinning processes, especially characterization of nonlinear shear extensional flows. To address this gap, we aimed disentangle effects temperature, concentration, degree polymerization (DOP) on flows an IL. We have studied behavior from two sources, fabric filter paper,...

This paper presents the simulation use cases for UAH Autonomous Electric Car, related with typical driving scenarios in urban environments, focusing on of hierarchical interpreted binary Petri nets order to implement decision making framework an autonomous electric vehicle. First, we describe our proposal system architecture, which is based open source Robot Operating System (ROS) that allows fusion multiple sensors and real-time processing communication processes different embedded...

Aiming at developing new absorbent/refrigerant working pairs for heat pumps, thermodynamic and transport properties of two pyridinium ionic liquids (ILs), N‐ethylpyridinium bis(trifluoromethanesulfonyl)amide trifluoromethanesulfonate were studied using molecular simulation nuclear magnetic resonance techniques. The microscopic structure the ILs solvation environment water, including hydrogen bonding, studied. Free‐energies water obtained perturbation methods, values agree with experimental...

Abstract Aiming to increase the scarce information available on kinetics of cellulose dissolution, we have applied an image-assisted technique based luminance evolution as dissolves study this process under different experimental conditions. This protocol was validated via direct determination dissolved. In all cases datapoints were linearly fitted assuming a pseudo-zero order reaction which facilitates comparison between datasets. To solvent effect used three ionic liquids with large...

The stereoselective synthesis of truxillic bis-amino esters from polyfunctional oxazolones is reported. reaction 4-((Z)-arylidene)-2-(E)-styryl-5(4H)-oxazolones 2 with Pd(OAc)2 resulted in ortho-palladation and the formation a dinuclear open-book complexes 3 carboxylate bridges, where Pd atom C^N bonded to oxazolone. In two exocyclic C=C bonds oxazolone are face-to-face arrangement, which optimal for their [2 + 2] photocycloaddition. Irradiation dimers CH2Cl2 solution blue light (465 nm)...

It is critical to monitor the structural evolution of complex fluids for optimal manufacturing performance, including textile spinning. However, in situ measurements a textile-spinning process suffer from paucity non-destructive instruments and interpretations measured data. In this work, kinetic rheo-optic properties cellulose/ionic liquid solution are simultaneously while fibers regenerated aqueous media model wet-spinning via customized polarized microscope. This system enables capture...

Abstract Existing additive manufacturing (AM) technologies produce metal components with a rough surface that generally display fatigue characteristics, leading to component failure and undesirable friction coefficients the printed part. Small cracks formed at regions of high roughness in surfaces act as stress raiser or crack nucleation site. Hence, as-produced parts’ direct use is limited introduces challenge related smoothening surface. The present study explores application electroless...

Abstract The current study investigates electroless nickel plating and surface finishing techniques such as ChemPolishing (CP) ElectroPolishing (EP) for postprocessing on additively manufactured stainless-steel samples. Existing additive manufacturing (AM) technologies generate metal components with a rough that typically exhibit fatigue characteristics, resulting in component failure undesirable friction coefficients the printed part. Small cracks formed surfaces at high roughness regions...

It is critical to monitor the structural evolution during deformation of complex fluids for optimization many manufacturing processes, including textile spinning. However, in situ measurements a spinning process suffer from paucity non-destructive instruments and interpretations measured data. In this work, kinetic rheo-optic properties cellulose/ionic liquid solution were simultaneously while fibers regenerated aqueous media miniature wet spinline equipped with customized polarized...

It is critical to monitor the structural evolution of complex fluids for optimal manufacturing performance, including textile spinning. However, in situ measurements a textile-spinning process suffer from paucity non-destructive instruments and interpretations measured data. In this work, kinetic rheo-optic properties cellulose/ionic liquid solution are simultaneously while fibers regenerated aqueous media miniature spinline via customized polarized microscope. This system enables capture...