Circular recycling of polyester textile waste using a sustainable catalyst

2021 ◽  
Vol 283 ◽  
pp. 124579
Author(s):  
Zengwei Guo ◽  
Mikael Eriksson ◽  
Hanna de la Motte ◽  
Erik Adolfsson
Keyword(s):  
Textile Waste ◽  
Polyester Textile

scholarly journals Highly Selective Enzymatic Recovery of Building Blocks from Wool-Cotton-Polyester Textile Waste Blends

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1107 ◽  
Author(s):  
Felice Quartinello ◽  
Sara Vecchiato ◽  
Simone Weinberger ◽  
Klemens Kremenser ◽  
Lukas Skopek ◽  
...  
Keyword(s):  
Amino Acids ◽  
Ethylene Terephthalate ◽  
Molecular Size ◽  
Building Blocks ◽  
Size Analysis ◽  
Textile Waste ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Poly Ethylene Terephthalate ◽  
Polyester Textile ◽  
Poly Ethylene

In Europe, most of the discarded and un-wearable textiles are incinerated or landfilled. In this study, we present an enzyme-based strategy for the recovery of valuable building blocks from mixed textile waste and blends as a circular economy concept. Therefore, model and real textile waste were sequentially incubated with (1) protease for the extraction of amino acids from wool components (95% efficiency) and (2) cellulases for the recovery of glucose from cotton and rayon constituents (85% efficiency). The purity of the remaining poly(ethylene terephthalate) (PET) unaltered by the enzymatic treatments was assessed via Fourier-transformed infrared spectroscopy. Amino acids recovered from wool were characterized via elementary and molecular size analysis, while the glucose resulting from the cotton hydrolysis was successfully converted into ethanol by fermentation with Saccharomyces cerevisiae. This work demonstrated that the step-wise application of enzymes can be used for the recovery of pure building blocks (glucose) and their further reuse in fermentative processes.

Fabrication of Conductive Textile via Chemical Oxidative Polymerization of Aniline on Polyester Cloth

2018 ◽  
Author(s):  
alireza razaghi
Keyword(s):  
Acidic Solution ◽  
Oxidative Polymerization ◽  
Morphological Structure ◽  
Infrared Spectrometry ◽  
Aniline Monomer ◽  
Polyester Textile ◽  
Conductive Polyaniline ◽  
Conductive Textile ◽  
Polymerization Conditions ◽  
Aniline Polymerization

In this research aniline polymerization conditions were optimized in presence of pre-treated polyester textile to achieve as high electrical conductivity as 100 S/Cm. Alkaline activation of the polyester textile was followed by immersion in to aqueous acidic solution of aniline monomer. Then the oxidant solution was used to initiate the polymerization. Finally, the prepared product was washed and dried prior to ant test. Functional groups were studied by Fourie-transformed infrared spectrometry (FTIR) from the surface of the polyaniline coated textile. Also, morphological structure of synthesized conductive polyaniline was studied by scanning electron microscopy (SEM). The synthesized cloth was used in a closed circuit in order to light up alight emitting diode to emphasis the conductivity of the textile and fibres that synthesised by this method.

Fabrication of Conductive Textile via Chemical Oxidative Polymerization of Aniline on Polyester Cloth

2018 ◽  
Author(s):  
alireza razaghi
Keyword(s):  
Acidic Solution ◽  
Oxidative Polymerization ◽  
Morphological Structure ◽  
Infrared Spectrometry ◽  
Aniline Monomer ◽  
Polyester Textile ◽  
Conductive Polyaniline ◽  
Conductive Textile ◽  
Polymerization Conditions ◽  
Aniline Polymerization

In this research aniline polymerization conditions were optimized in presence of pre-treated polyester textile to achieve as high electrical conductivity as 100 S/Cm. Alkaline activation of the polyester textile was followed by immersion in to aqueous acidic solution of aniline monomer. Then the oxidant solution was used to initiate the polymerization. Finally, the prepared product was washed and dried prior to ant test. Functional groups were studied by Fourie-transformed infrared spectrometry (FTIR) from the surface of the polyaniline coated textile. Also, morphological structure of synthesized conductive polyaniline was studied by scanning electron microscopy (SEM). The synthesized cloth was used in a closed circuit in order to light up alight emitting diode to emphasis the conductivity of the textile and fibres that synthesised by this method.

Soiling Degree and Cleanability of Differently Treated Polyester Textile Materials

2005 ◽  
Vol 42 (1) ◽  
pp. 17-22 ◽  
Author(s):  
A. Calvimontes ◽  
V. Dutschk ◽  
B. Breitzke ◽  
P. Offermann ◽  
B. Voit
Keyword(s):  
Textile Materials ◽  
Polyester Textile

Textile Waste and Haptic Feedback for Wearable Robotics

2018 ◽  
Author(s):  
Hellen van Rees ◽  
◽  
Angelika Mader ◽  
Merlijn Smits ◽  
Geke Ludden ◽  
...  
Keyword(s):  
Haptic Feedback ◽  
Textile Waste ◽  
Wearable Robotics

Decolorization of Textile Waste Effluents by Ozonation

1991 ◽  
Vol 21 (2) ◽  
pp. 143-156 ◽  
Author(s):  
Sheng H. Lin ◽  
Chi M. Lin
Keyword(s):  
Textile Waste ◽  
Waste Effluents

scholarly journals Pre-treatments of pre-consumer cotton-based textile waste for production of textile fibres in the cold NaOH(aq) and cellulose carbamate processes

Cellulose ◽  
2021 ◽  
Author(s):  
Marjo Määttänen ◽  
Maria Gunnarsson ◽  
Helena Wedin ◽  
Sara Stibing ◽  
Carina Olsson ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Raw Material ◽  
Textile Waste ◽  
Future Studies ◽  
Degree Of Polymerisation ◽  
Textile Fibres ◽  
Cellulose Carbamate ◽  
Regenerated Fibres ◽  
Inorganic Content

AbstractRecycling of textiles is of importance due to the large amount of waste generated from the increasing consumption and use worldwide. Cotton-rich pre-consumer textiles are considered as potential raw material for production of man-made regenerated fibres, but demands purification from the blends with synthetic fibres as well as the dyes and finishing chemicals. In this study we explore the use of different pre-treatments of pre-consumer textiles to meet specific parameters for production of fibres in the cold NaOH(aq) or cellulose carbamate process. The pre-treatments consisted of different bleaching sequences and were performed on both uncoloured and coloured pre-consumer textiles. For the uncoloured textile, degree of polymerisation and amount of inorganic content was efficiently reduced making the material suitable for both the cold NaOH(aq) and the cellulose carbamate process. In case of the coloured textile, the pre-treatments were able to remove the dye and decrease the inorganic content as well as reduce the degree of polymerisation but only sufficiently enough for production of fibres in the cellulose carbamate process. The work was able to prove a fibre-to-fibre concept while further optimisation of the regeneration steps is expected to improve the mechanical properties of the produced fibres in future studies.

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