نتایج جستجو برای: nano cellulosic fibers
تعداد نتایج: 122842 فیلتر نتایج به سال:
Physiologically relevant models of wound healing are essential for understanding the biology of connective tissue repair and healing. They can also be used to identify key cellular processes and matrix characteristics critical for the design of soft tissue grafts. Modeling the various stages of repair post tendon injury, polymer meshes of varying fiber diameter (nano-1 (390 nm) < nano-2 (740 nm...
(2) Color Measurement and Control (3) Pigments, Pigmentation and Polypropylene An inspection of the titles will reveal that four of the sections deal with the mechanism of dye transport to the fiber surfaces and into the fiber, while nine others deal with the chemical technology rics associated with particular dye application categories. Some readers will be more interested in technology than m...
Cellulosic fibers in aqueous suspensions are subject to flocculation effects that involve two contrasting scales of dimension. The net effect of flocculation determines how uniformly fibers can become formed into a sheet during the manufacture of paper. At a macroscopic level, the highly elongated shape of typical wood-derived fibers in agitated suspensions can give rise to frequent inter-fiber...
UDP-glucuronate decarboxylase (UDP-xylose synthase; UXS, EC 4.1.1.35) is an essential enzyme of the non-cellulosic polysaccharide biosynthetic pathway. In the present study, using transient expression of fluorescently labeled Gossypium hirsutum UXS (GhUXS3) protein in onion epidermal cells, we observed that this protein was distributed in the cytoplasm. The GhUXS3 cDNA of cotton was expressed i...
This work reports on the implementation of electrospinning (ES) as a facile route to encapsulate nano-engineered materials in a polystyrene (PS) matrix. We applied ES to co-encapsulate two kinds of nanoparticles, i.e., upconversion nanophosphors (UCNPs) and superparamagnetic iron oxide nanoparticles (SPIONs), in polystyrene (PS)-based microand nano-fibers (PSFs). This approach made it possible ...
Applications of hemp fibers, as a promising natural material in the textile field, mostly require improved fiber properties. In this paper, oxidation fibers with potassium permanganate was applied to reduce amount non-cellulosic substances and moisture sorption; introduce functional groups increase capillarity; make finer, softer suitable for application sport wears. The changes sorption proper...
This study compared oxidative delignification of birch kraft pulp fibers to from acid hydrotropic fractionation (AHF) using p-toluenesulfonic (p-TsOH). Under oxygen at 20% consistency, AHF pulps with lower hemicellulose content showed higher than similar lignin despite its residual (cellulosic enzymatic lignin, CEL) being less reactive fewer ?-O-4 ether aryl linkages based on 2D13C-1H nuclear m...
The focus of this work was to investigate the cellulose acetate (CA)–viscose (CV) interface in an all-cellulosic compound and evaluate feasibility hydrophobic CA-coatings on viscose fibers. Mechanical strengths foil-CA compounds were investigated by recoding stress-to-strain curves. For equivalent strain, composites generate higher stress than pure CA samples. coating CV fibers, fibers pretreat...
Pulp fibers have a strong tendency to form flocs in water suspensions, which may cause their undesirable distribution in the paper sheets. This flocculation can be controlled by adding, e.g., an anionic high molecular weight polyelectrolyte in the fiber suspension. The objective of this study was to investigate the effect of anionic polyelectrolytes on deflocculation kinetics, dewatering, and r...
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