Results 141 to 150 of about 1,300 (185)

Xylan enriched viscose fibers

Cellulose, 2014
In this study, a new xylan enriched viscose fiber was developed. A high molecular weight xylan with a degree of polymerization of 150–200 was added during a late stage of the viscose production process. The xylan deriving from a cold caustic extraction (CCE) of an eucalypt paper pulp was introduced to the process after xanthation and thus neither ...
Gabriele Schild, Eva Liftinger
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The viscosity of fiber suspensions at low fiber volume fractions

Polymer Engineering & Science, 1981
AbstractThe viscosities of suspensions of glass fibers in an aqueous solution of sucrose have been studied by use of a capillary viscometer. In the aligned condition in the capillary, the viscosity depends little on shear rate within the range studied or on fiber length, but increases with increasing volume fraction of the fibers.
J. N. Miles, N. K. Murty, G. F. Modlen
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Producing of Carbon Fibers from Commercial Viscose Fibers

Applied Mechanics and Materials, 2019
In this work, commercial Viscose fibers (cellulosic based precursor) were used for making carbon fibers. The experimental procedures include two main steps: Stabilization in air atmosphere and Carbonization in inert gas atmosphere. In the first step, the Viscose fibers are stabilized with the catalyst of mixture urea/diamonium hydrogen phosphate in air
Huu Son Nguyen, Le Hoang Vu, Van Cuong Pham, Xuan Thao La, Thai Hung Le   +4 more
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Optical fiber-based fluorescent viscosity sensor

Optics Letters, 2006
Molecular rotors are a unique group of viscosity-sensitive fluorescent probes. Several recent studies have shown their applicability as nonmechanical fluid viscosity sensors, particularly in biofluids containing proteins. To date, molecular rotors have had to be dissolved in the fluid for the measurement to be taken.
Mark A, Haidekker, Walter J, Akers, Derek, Fischer, Emmanuel A, Theodorakis   +3 more
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Process of Incorporation of Cerium Oxide in Viscose to Spin Infrared Reflecting Viscose Fibers

AATCC Journal of Research, 2022
The concept of leveraging the optical properties of cerium oxide into viscose fibers was demonstrated in this study. The process of dispersing cerium oxide particles uniformly into viscose dope prior to viscose fiber spinning was studied in detail. Cerium oxide powder was dispersed in the chosen media using mechanical treatments such as ball milling ...
Esha Sharma, Ram Agarwal, Shrikant Ralebhat, Gurudatt Krishnamurthy, Sunil Bhagwat, Ravindra V. Adivarekar   +5 more
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Preparation and characterization of cyclotriphosphazenekeratin/viscose fibers

Fibers and Polymers, 2015
The aim of this study is to develop a flame-retardant viscose fiber using the phosphazene derivative of a natural polymer. Hexachlorocyclotriphosphazene (HCCTP) and keratin were used as the raw materials to synthesize cyclotriphosphazenekeratin (CCTPK).
Zhao Zhou, Bao Weiren, Di Youbo, Dai Jinming   +3 more
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Reaction of Fire Retardants with Viscose Fiber

Fibre Chemistry, 2014
IR spectroscopy, the calculated sorption coefficient for the reaction of viscose fiber with fire retardant, and the determined oxygen index of the modified fibers that characterized the flammability of the material were used to study the reaction of the fiber with dimethylmethylphosphonate derivatives.
E. V. Bychkova, L. G. Panova
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Viscosity of silica core optical fiber

Journal of Non-Crystalline Solids, 1999
Abstract Since we found that Rayleigh scattering of silica core optical fiber can be reduced by heat treatment, we studied the viscosities of the fiber to investigate this phenomenon from the viewpoint of viscous relaxation. To this end, the viscosity of silica core fiber was measured by the bending method in a temperature range of 1050–1200°C.
S. Sakaguchi, S. Todoroki
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Dissolving waste viscose to spin cellulose fibers

Polymer, 2021
Abstract In recent years, the recycling of waste products has aroused widespread concern. For quality assurance and unpredictable accident, many viscose films or fibers were thrown away as offal, resulting in the waste of resources and environmental problems.
Yanan Li, Junwu Peng, Xinglin Liu, Dengpeng Song, Weilin Xu, Kunkun Zhu   +5 more
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Enlarging of an optical fiber preform with viscose silica fiber

Journal of Non-Crystalline Solids, 1994
Abstract Visil is a viscose silica fiber invented by Kemira Oy, Finland. The fiber contains up to 30% silica. The sodium and iron ions can be washed away from the fiber. When applying it to optical fiber preform production, the VISIL fiber is wound around the preform after which the preform is heated to remove organic material.
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