Effect of treatment pressure on wool fiber in supercritical carbon dioxide fluid

Long, Jia‐Jie; Cui, Chuang-Long; Wang, Ling; Xu, Hongmei; Yu, Zhi-Jin; Bi, Xiaoping

doi:10.1016/j.jclepro.2013.01.002

Cited by 56 publications

(18 citation statements)

References 26 publications

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“…The infrared spectra of the untreated meta-aramid indicated that no peak for aliphatic One reason for this phenomenon was because supercritical carbon dioxide could affect the interactions of the macromolecules in the polymer fiber due to its high penetrability. Moreover, there were some re-arrangements and re-crystallizations of the molecule chains in the process of supercritical carbon dioxide treatment, leading to the shifts of the characteristic bands of meta-aramid fiber blends [25].…”

Section: Effect Of Temperature On the Chemical Structure Of Meta-arammentioning

confidence: 99%

An investigation for the performance of meta-aramid fiber blends treated in supercritical carbon dioxide fluid

Zheng

Zhang

et al. 2015

Fibers Polym

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The physicochemical performance of meta-aramid fiber blends treated in supercritical carbon dioxide fluid was studied at different temperatures. The effects of treatment temperatures on the surface morphology, wettability, chemical and crystal structures, thermal and antistatic properties were investigated by employing Scanning electron microscopy, Dynamic wetting measurements, Fourier transform infrared spectrometry, X-ray diffraction, Thermal analysis and Static half period method, respectively. The result showed that the surface of the treated meta-aramid fiber blends was changed with the treatment temperature increasing and more mild grooves and stripes appeared. The dynamic wetting measurements showed that the water contact angles and absorption time for treated fibers were decreased with temperature increasing. The slight shifts of the characteristic bands of the treated meta-aramid fiber blends were observed in FT-IR spectra with the system temperature increasing. Meanwhile, XRD analysis showed that the diffraction intensities of treated samples were improved in the supercritical carbon dioxide fluid because some re-arrangements and re-crystallizations of the molecule chains generated. TG-DTG analysis indicated that the thermal property of meta-aramid fiber blends could be improved at various temperatures. In addition, supercritical carbon dioxide fluid had little negative influence on the physical and antistatic properties of the meta-aramid fiber blends.

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Section: Effect Of Temperature On the Chemical Structure Of Meta-arammentioning

confidence: 99%

An investigation for the performance of meta-aramid fiber blends treated in supercritical carbon dioxide fluid

Zheng

Zhang

et al. 2015

Fibers Polym

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“…Supercritical carbon dioxide dyeing is a water free process and therefore is a revolutionary and green attractive alternative to conventional wet methods in the textile industry [15,16]. scCO 2 can be used as a medium in yarn preparation, coloration, and finishing of polyester, nylon, cotton, wool, silk, and other fabrics without generating aqueous effluents; this new method has many advantages, such as no wastewater, no auxiliaries, high dyeing rate, and good leveling results [17,18].…”

Section: Supercritical Carbon Dioxide Dyeingmentioning

confidence: 99%

Emerging Green Technologies and Environment Friendly Products for Sustainable Textiles

Islam

Mohammad

2014

Textile Science and Clothing Technology

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Textiles production processes such as sizing, scouring, bleaching, mercerizing, dyeing, printing, and finishing are characterized by a huge consumption of water, energy, and chemicals. The toxic effluent discharge generated in these processes mainly contains by-products, residual dyes, salts, acids and alkalis, auxiliary chemicals, and other solvents. Their discharge into neighboring water bodies is posing a serious threat to the flora and fauna. At present, however, development in the textile and clothing industry has focused on the use of some green technologies as alternatives to conventional wet processes to promote sustainable production and consumption of textiles and clothing. In recent years, emphasis has been put on developing cleaner, cost-effective, and value-added textile products for a variety of applications without compromising the issues related to health and the environment. This chapter is intended to provide a summary of recent developments in the coloration and finishing of textile fibers and to provide details of the ecofriendly strategies developed to reduce the waste generation in the textiles and clothing sector. Finally, their implications in the sustainability of clothing products are also outlined.

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“…Long examined the effects of supercritical carbon dioxide on the structure and properties of wool fiber, and revealed that a notable etching effect or dilapidation on the scales was observed . Hirogaki proved that the PET yarns had different morphologies depending on the draw ratio in different supercritical carbon dioxide conditions …”

Section: Introductionmentioning

confidence: 99%

Effect of treatment pressure on structures and properties of PMIA fiber in supercritical carbon dioxide fluid

Zheng

Zhang

et al. 2014

J of Applied Polymer Sci

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The effects of treatment pressure on the structures and properties of PMIA fiber were investigated by Scanning electron microscopy, Dynamic wetting measurements, Fourier transform infrared spectrometry, X‐ray diffraction, thermogravimetric analysis, and mechanical properties test technology in supercritical carbon dioxide. The results indicated that the surface morphology, the water contact angle, the interaction of macromolecules, the crystal structure, the thermal property, and tensile strength of PMIA fibers were changed during supercritical carbon dioxide treatment, particularly the surface morphology and the wettability of fiber changed the most obviously with the increase of treatment pressure. Furthermore, the thermal property and tensile strength of treated PMIA fiber sample were improved in comparison with those of untreated sample. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41756.

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Effect of treatment pressure on wool fiber in supercritical carbon dioxide fluid

Cited by 56 publications

References 26 publications

An investigation for the performance of meta-aramid fiber blends treated in supercritical carbon dioxide fluid

An investigation for the performance of meta-aramid fiber blends treated in supercritical carbon dioxide fluid

Emerging Green Technologies and Environment Friendly Products for Sustainable Textiles

Effect of treatment pressure on structures and properties of PMIA fiber in supercritical carbon dioxide fluid

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