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Analysis of sorption properties of fibers obtained from polyethylene terephthalate

Field of Science:ChemistryEngineering
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O_TJ.2024.03.16_2a4d9613.pdf

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“TEXTILE JOURNAL OF UZBEKISTAN” Scientific-technical journal

“TEXTILE JOURNAL OF UZBEKISTAN” Scientific-technical journal

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ARTICLE ANNOTATION

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The use of recycled secondary polyethylene terephthalate in one composition with virgin polyethylene terephthalate in the production of polyester fibers for the textile industry will expand the range of materials and reduce the volume of plastics that are harmful to the environment. The article is devoted to the study of the sorption properties of fibers formed by a dry method from a melt of polyethylene terephthalate (PET) granules on an experimental fiber-forming unit and dyed with disperse dyes in solution. The sorption properties (specific surface area, pore radius) of PET fibers obtained from primary (PPET), secondary (VPET) polyethylene terephthalates and their compositional ratios of 70/30, 30/70 were analyzed based on the indicators of low-temperature adsorption of water vapor, changes in the crystalline phases of the supramolecular structure according to X-ray diffraction from the crystal lattice of the fiber. The change in the crystalline structure of the fiber formed from a high-temperature melt and dyed at the boiling point under the influence of external forces and internal stresses is shown. An increase in the degree of crystallization of PET fibers is achieved by dyeing them in a solution of a dispersed dye and a structure loosening agent, creating conditions for easy diffusion of dye molecules into the pores and their location in the crystalline cell of the fibers.

AUTHORS

Ш.Шаманов

TOSHKENT TO'QIMACHILIK VA YENGIL SANOAT INSTITUTI

Tags

# fiber# adsorption# polyethylene terephthalate# specific surface area# pore radius# crystallite# degree of crystallization

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Article Identifiers

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https://eroi.uz/11.100/A026-485908

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Not Available

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