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Sustainable technical textile from recycled polyester / Isabel de Schrijver in CHEMICAL FIBERS INTERNATIONAL, (10/2014)
[article]
Titre : Sustainable technical textile from recycled polyester Type de document : texte imprimé Auteurs : Isabel de Schrijver, Auteur ; Lien Van der Schueren, Auteur ; Enrico Fatarella, Auteur Année de publication : 2014 Article en page(s) : p. 20-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrusion filage
Fils multifilaments
IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface.
Matières plastiques -- Recyclage
Polyesters
Textiles et tissus à usages techniquesIndex. décimale : 677.4 Textiles artificiels Résumé : The plastics industry is an important sector of the European economy having a significant and increasing influence on the municipal solid wastes stream.Plastics recycling has thus become a 'hot topic' nowadays. The project Supertex (ECO/10/277225) - Sustainable Flame Retardant Technical Textile from Recycled Polyester - is aiming to demonstrate that post-industrial and post-consumer polyester waste can be exploited in the textile industry for the production of technical textiles. Note de contenu : - ANALYSIS OF PLASTIC SOLID WASTE AND THE POTENTIAL OF PLASTIC RECOVERY
- SUPERTEX : SUSTAINABLE TECHNICAL TEXTILE FROM RECYCLED POLYESTER : Polyester use in the textile industry - Post industrial or post consumer PET - Multifilament extrusion of rPET gradesEn ligne : https://drive.google.com/file/d/1-FRzHj2QzD2n0Q1RBs2Cm44hwfLWyjgv/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22184
in CHEMICAL FIBERS INTERNATIONAL > (10/2014) . - p. 20-22[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16593 - Périodique Bibliothèque principale Documentaires Disponible Textile applications of commercial photochromic dyes. Part 6 : photochromic polypropylene fibres / Anna F Little in COLORATION TECHNOLOGY, Vol. 132, N° 4 (08/2016)
[article]
Titre : Textile applications of commercial photochromic dyes. Part 6 : photochromic polypropylene fibres Type de document : texte imprimé Auteurs : Anna F Little, Auteur ; Robert M. Christie, Auteur Année de publication : 2016 Article en page(s) : p. 304-309 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbeurs de rayonnement ultraviolet
Colorants photochromiques
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Extrusion filage
Naphtopyranne
Photostabilité
Polypropylène
Sérigraphie
Spirooxazine
Stabilisants (chimie)
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Two commercial photochromic dyes, a spirooxazine and a napthopyran, were successfully incorporated into polypropylene fibres by melt extrusion to produce fibres that showed intense photochromism. The technical performance of the photochromic dyes was investigated using a methodological approach that has been established and validated for the dyes applied by screen printing onto textiles in previous publications in this series. These parallel investigations allowed a comparison of the properties of the dyes in polypropylene and screen printed on cotton. The photocolorability of both dyes was found to be significantly higher in polypropylene compared with screen prints on cotton when applied at the same dye concentration. Of particular interest was the observation of positive solvatochromism, providing evidence that the photochromism is due to the colorants in solution in both media. The colour development rates during UV exposure of the dyes applied by screen printing cotton and by extrusion into polypropylene were similar. However, differences were observed in the thermal fading rates after removal of the UV source, in that the spirooxazine dye reverted more slowly in polypropylene, while the reverse was true in the case of the naphthopyran. Both dyes showed better photostability in polypropylene than in screen-printed textiles. A UV absorber and two hindered amine light stabilisers were found significantly to enhance the photostability of the dyes in polypropylene, although the presence of the UV absorber reduced the degree of photocoloration. Note de contenu : - Instrumentation and equipment
- Photostability
- Materials and application methodologyDOI : 10.1111/cote.12221 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12221 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26732
in COLORATION TECHNOLOGY > Vol. 132, N° 4 (08/2016) . - p. 304-309[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18246 - Périodique Bibliothèque principale Documentaires Disponible The effect of feeding method and compatibilizer on nanoclay partitioning and microfibrillar morphology development in PP/PBT/organoclay blend nanocomposite fibers / A. Bigdeli in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 2 (05/2013)
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Titre : The effect of feeding method and compatibilizer on nanoclay partitioning and microfibrillar morphology development in PP/PBT/organoclay blend nanocomposite fibers Type de document : texte imprimé Auteurs : A. Bigdeli ; Hussein Nazockdast Année de publication : 2013 Article en page(s) : p. 174-179 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Argile
Extrusion filage
Fibres
Fibrillation
Nanoparticules
Polybutylène téréphtalate
PolypropylèneIndex. décimale : 668.9 Polymères Résumé : The role of feeding method, as an important parameter in competition with thermodynamic parameters, on determining the nanoclay partitioning and its impact on microfibril formation in PP/PBT blend nanocomposite fibers were investigated. In the direct feeding method in which all components were fed into the extruder simultaneously, the major part of nanoclay with almost unchanged interlayer d-spacing was located in the PP matrix and the rest of the nanoclay partitioned into the PBT dispersed phase. However in the PBT based masterbatch method nanoclay, due to much greater melt intercalation occurred, remained in PBT droplets in the form of tactoids and/or platelets. In the masterbatch feeding method, incorporation of compatibilizer assisted more fraction tactiods and/or platelets to be transferred from PBT to the PP matrix while in the direct method it enhanced the extent of melt intercalation in the PP matrix. It was demonstrated that the nanoclay concentration in PBT droplets plays an important role in the extent of the microfibril formation during the melt spinning process. While at low organoclay loading (1 wt%) fine microfibrils could be formed in the fibers prepared by both methods of feeding, at higher organoclay loading (3,5 wt%) uniform microfibrils could hardly be developed in the fibers, particularly, in the masterbatch feeding method due to high melt elasticity of the PBT droplets and uneven distribution of platelets and/or tactoids in the droplets.
DOI : 10.3139/217.2669 En ligne : https://drive.google.com/file/d/105SKV12MRMcB16iJEgLF1jBbUGylWXMQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18427
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVIII, N° 2 (05/2013) . - p. 174-179[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15050 - Périodique Bibliothèque principale Documentaires Disponible The role of nanoclay partitioning and fibril formation on dyeability of blend nanocomposite fibres / Ahmad Bigdeli in COLORATION TECHNOLOGY, Vol. 129, N° 4 (08/2013)
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Titre : The role of nanoclay partitioning and fibril formation on dyeability of blend nanocomposite fibres Type de document : texte imprimé Auteurs : Ahmad Bigdeli, Auteur ; Hossein Nazockdast, Auteur ; Abosaeed Rashidi, Auteur ; Mohammad Esmail Yazdanshenas, Auteur Année de publication : 2013 Article en page(s) : p. 289–297 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Composites
Compoundage
Extrudeuse bi-vis
Extrusion filage
Fibrillation
Matériaux hybrides
Microscopie électronique à balayage
Microscopie électronique en transmission
Nanoparticules
Polybutylène téréphtalate
Polypropylène
Rhéologie
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The aim of the present work was to study the effect of microstructure and microfibril formation on dyeability of polypropylene/poly(butylene terephthalate)/organoclay blend nanocomposite fibres. The blend nanocomposite samples with the same blend ratio but varying in organoclay content were prepared via melt compounding by using a co-rotating twin screw extruder. The microfibrillar morphology and nanoclay partitioning were studied using scanning electron microscopy and transmission electron microscopy together with rheological results. The presence of nanoclay in the form of tactoids in the polypropylene matrix accelerated the dye sorption but much greater ultimate dye uptake could be achieved for the sample in which the major part of the platelets were preferentially located inside the poly(butylene terephthalate) fibrils. Although increasing the organoclay concentration increased the ultimate dye uptake, it limited the fibril formation at higher organoclay concentration. The utilisation of a compatibiliser was found to have an enhancing effect on ultimate dye uptake. This could be explained in terms of the interfacial role of the compatibiliser in improving microfibril formation as well as partitioning a fraction of nanoclay platelets inside the polypropylene matrix. DOI : 10.1111/cote.12038 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12038/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19042
in COLORATION TECHNOLOGY > Vol. 129, N° 4 (08/2013) . - p. 289–297[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15394 - Périodique Bibliothèque principale Documentaires Disponible The role of organoclay on in-situ microfibril formation of epoxy in poly(butylene terephtalate) nanocomposites / M. M. Salehi in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 2 (05/2013)
[article]
Titre : The role of organoclay on in-situ microfibril formation of epoxy in poly(butylene terephtalate) nanocomposites Type de document : texte imprimé Auteurs : M. M. Salehi ; Hossein Nazockdast ; G. R. Pircheraghi Année de publication : 2013 Article en page(s) : p. 199-206 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Epoxydes
Extrusion filage
Fibrillation
Matériaux hybrides
Matières plastiques -- Extrusion:Polymères -- Extrusion
Polybutylène téréphtalateIndex. décimale : 668.9 Polymères Résumé : The main objective of the present work was to study the role of organoclay on the microfibrillation process of epoxy phase in Poly(butylene terephtalate), PBT, matrix both in presence and absence of epoxy curing agent. The PBT/epoxy blend samples with constant blend ratio (60/40) were prepared by melt mixing in a twin screw extruder. The elongational flow imposed by drawing the extrudate at the die exit permitted controlled generation of fibrile morphology of the dispersed epoxy phase, with a fiber diameter of 0.8 lm and an aspect ratio greater than 100. It was shown that when the curing agent was added into the extruder, its reactivity with epoxy at high temperature was high enough and selectively affected on the epoxy phase. The SEM results showed smaller epoxy droplet size for samples containing nanoclay compared to simple blends. This could be explained in terms of hindrance effect of nanoclay in reducing the coalescence as a dominating parameter due to presence of nanoclay in both phases. These results were supported by the melt linear viscoelastic results which showed enhanced low frequency viscosity and storage modulus for these samples. Addition of nanoclay was found to have little effect on extent of fibrillation epoxy droplet in stretched samples. The rheological results obtained for stretched samples showed very strong increase in low frequency solid body response whose extent was increase with increasing draw ratio. This mainly attributed to special 3-D network formed between microfibrils whose shape was stabilized by either presence of nanoclay or accelerated curing process of fibrillated epoxy. From SEM micrographs and linear viscoelastic measurements it can be deduced that curing process has small changes on the extent of fibrillation epoxy droplet in stretched samples. But it leads to improvement of interfacial interaction between two phases in the nanocomposites. Note de contenu : - EXPERIMENTAL/MODELING/SIMULATION : Materials - Sample preparation - Sample characterization
- RESULTS AND DISCUSSION : Residence time distribution in extruder and kinetics of epoxy curing - PBT/epoxy blendsDOI : 10.3139/217.2681 En ligne : https://drive.google.com/file/d/1LutPvUwI20tFsaMar7vQOg7LG7x8AM5O/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18433
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Code-barres Cote Support Localisation Section Disponibilité 15050 - Périodique Bibliothèque principale Documentaires Disponible Variable spinning line for melt spinning / Bernhard Krautwurst in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 3 (10/2015)
PermalinkVerifying the melting behavior in single-screw plasticization units using a novel simulation model and experimental method / M. Aigner in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 5 (11/2014)
PermalinkWater quenched melt spinning process for thermoplastic polyurethanes / Pavan Kumar Manvi in CHEMICAL FIBERS INTERNATIONAL, Vol. 64, N° 1 (03/2014)
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