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Structure and properties of the cotton-like polyethylene terephthalate fiber / Ni Wang in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 1 (03/2015)
[article]
Titre : Structure and properties of the cotton-like polyethylene terephthalate fiber Type de document : texte imprimé Auteurs : Ni Wang, Auteur ; Min Huang, Auteur ; Zhenjie Wang, Auteur ; Xueli Wang, Auteur Année de publication : 2015 Article en page(s) : p. 39-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Caractérisation
Diffractométrie de rayons X
Fibres textiles -- Propriétés mécaniques
Fibres textiles -- Propriétés thermiques
Fibres textiles synthétiques
Polyéthylène téréphtalate
Traction (mécanique)Index. décimale : 677.4 Textiles artificiels Résumé : Structure and properties of the cotton-like PET fiber were characterized by its surface characteristics, mechanical properties, thermal properties and its fine structures, and compared with the commercially available ordinary PET and CDPET fibers. The results showed that the fiber had a 3-leaf cross-sectional shape and the tenacity, breaking elongation and initial modulos were ail lower than that of the ordinary polyester fibers, white larger than that of cation. The adding of monomers in polymerization destroyed the regularity of the macro-molecule structure, leading to a decrease in crystaltinity, T8 and Tm. Note de contenu : - Morphology
- Tensile test
- Thermal analyses
- XRD analysesEn ligne : https://drive.google.com/file/d/1Ic24J0P1MVQrRCA4jSZi2fKBj2Xjkfa1/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23669
in CHEMICAL FIBERS INTERNATIONAL > Vol. 65, N° 1 (03/2015) . - p. 39-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17120 - Périodique Bibliothèque principale Documentaires Disponible Studies on characterization of high performance coatings based on polymer alloys of interpenetrating polymer networks / T. Anandaraj in PAINTINDIA, Vol. LI, N° 6 (06/2001)
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Titre : Studies on characterization of high performance coatings based on polymer alloys of interpenetrating polymer networks Type de document : texte imprimé Auteurs : T. Anandaraj, Auteur ; P. S. Mohan, Auteur ; Sm Krishnan, Auteur ; Kalpana Balakrishnan, Auteur ; M. Raghavan, Auteur Année de publication : 2001 Article en page(s) : p. 35-52 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Anticorrosion
Caractérisation
Chromatographie sur gel
Epoxydes
Fourier, Spectroscopie infrarouge à transformée de
Liants
Microscopie électronique à balayage
Polyacrylates
Polyuréthanes
Réseaux polymères
Revêtements protecteurs
Revêtements:Peinture
Spectrométrie infrarouge
Spectroscopie d'impédance électrochimiqueIndex. décimale : 667.9 Revêtements et enduits Résumé : Organic coatings are valued after the polymeric binder material out of which it is made for the reason that it only decides the extent of protection and the life of a coating. Of a few ways to obtain better performing polymeric binders, alloying the incompatible polymers through compatibilization is fast-emerging with a number of promises. Interpenetrating polymer networks are one of its kinds. In this study, two polymer alloys of Interpenetrating Polymer Network (IPN) based on epoxy-acrylic-polyurethane polymers have been developed in the laboratory and subjected to different laboratory accelerated tests as pigmented coatings. They have been found to possess far superior physical and chemical and corrosion resistance properties compared to crosslinked acrylates, polyamide cured epoxies and polyurethanes. The IPNs as clear coatings were also characterized by various physico-chemical and surface analytical techniques. The thermo-analytical techniques, FTIR and SEM confirmed the formation of IPN. The improved corrosion resistance properties were established by water permeation tests and electrochemical impedance spectroscopy. Note de contenu : - Synthesis of epoxy-acrylate precursors
- Synthesis of IPNs
- Neat systems
- Crosslinked acrylic copolymer system
- Polyamide catalyzed epoxy system
- Acrylic polyol based aromatic polyurethane system
- Nomenclature of coatings
- Specimen preparation
- Free-filming of IPNs
- Characterization methods : FT-IR spectroscopy – Gel permeation chromatography – Scanning electron microscopy – Thermal measurements – Gel-time measurements – Moisture vapor transmission rate measurements – Electrochemical AC Impedance spectroscopy (EIS)
- FT-IR spectra
- Gel permeation chromatograms
- Thermal measurements
- Morphology of IPNs by SEM
- Get-time measurements
- Moisture-vapor transmission rates
- Electrochemical AC impedance spectroscopyPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12590
in PAINTINDIA > Vol. LI, N° 6 (06/2001) . - p. 35-52[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001267 - Périodique Bibliothèque principale Documentaires Disponible Studies on the henna-glutaraldehyde combination tanning system / A. E. Musa in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CVI, N° 3 (03/2011)
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Titre : Studies on the henna-glutaraldehyde combination tanning system Type de document : texte imprimé Auteurs : A. E. Musa, Auteur ; Rathinam Aravindhan, Auteur ; Swarna Vinodh Kanth, Auteur ; Jonnalagadda Raghava Rao, Auteur ; B. Chandrasekaran, Auteur ; G. A. Gasmelseed, Auteur Année de publication : 2011 Article en page(s) : p. 92-101 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Analyse thermique
Cuirs et peaux de chèvres
Formulation (Génie chimique)
Glutaraldéhyde
Henné
Microscopie électronique à balayage
Tannage combinéLe tannage combiné se dit des tannages qui allient deux familles ou genre de tannage pour obtenir un résultat additionnant les qualités complémentaires des tannins mis en Å“uvre par exemple Chrome-Végétal ou Chrome-SynthétiqueIndex. décimale : 675.2 Préparation du cuir naturel. Tannage Résumé : An organic combination tanning process for the production of upper leathers based on henna and glutaraldehyde was demonstrated in this work. Extract from the leaves of Henna (Lawsonia inermis), widely distributed in Sudan, has been evaluated for its utilization in the combination tanning system based on henna and glutaraldehyde syntan. It was observed that the henna-glutaraldehyde combination tanning system employing 20% Henna extract and 3% Glutaraldehyde syntan provided a shrinkage temperature of 100°C. The Differential Scanning Calorimetric (DSC) data is in accordance with the observed shrinkage temperature. The characteristics of the leathers indicate that the henna-glutaraldehyde combination tanning system provided leathers with good organoleptic properties and comparable strength properties. The leathers were further characterized by chemical analysis and Scanning Electron Microscopy (SEM). The leathers obtained from the combination tanning system were lighter in color compared to control leathers as observed from the color measurement. Thus the possibility of making upper leather using henna-glutaraldehyde combination tanning appears to be promising. Note de contenu : - EXPERIMENTAL : Materials - Aqueous extraction of henna leaves - Henna-glutaraldehyde combination tanning - Visual assessment of the crust leather - Physico chemical analysis of leathers physical testing - chemical analysis - Reflectance measurement - Scanning electron microscopic analysis of leather samples - Differential scanning calorimetry - Analysis of spent liquor.
- RESULTS AND DISCUSSION : Organoleptic properties of crust leather for experimental and control - Physical strength characteristics of crust leathers for experimental and control - Analysis of spent liquor - Analysis of henna extract exhaustion - reflectance measurement - Scanning electron microscopic analysis of leather samples - Chemical analysis of the crust leather - Henna and glutaraldehyde combination tanning : an alternative viable tanning option for leather manufacture.En ligne : https://drive.google.com/file/d/1aMNcOU3zFK2qroV7MJjIizlp5WU3-ASO/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11238
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CVI, N° 3 (03/2011) . - p. 92-101[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012877 - Périodique Bibliothèque principale Documentaires Disponible Study on boron fiber : review / Kunal Singha in CHEMICAL FIBERS INTERNATIONAL, Vol. 63, N° 2 (05/2013)
[article]
Titre : Study on boron fiber : review Type de document : texte imprimé Auteurs : Kunal Singha, Auteur ; Kumari Anupam, Auteur ; Pulak Debnath, Auteur ; Arijit Chakraborty, Auteur ; Amal Ray, Auteur ; Mrinal Singha, Auteur Année de publication : 2013 Article en page(s) : p. 80-84 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse spectrale
Analyse thermique
Bore
Dépôt chimique en phase vapeur
Elasticité
Fibres métalliques
Fibres métalliques -- Propriétés mécaniques
Microscopie électronique à balayage
Thermocinétique
Traction (mécanique)Index. décimale : 677.53 Fibres métalliques Résumé : Boron filaments produced by a chemical vapor deposition (CVD) process. Boron can be deposited on a tungsten wire core, and on a glass or graphite filament core. The filaments thus produced have nominal diameters ranging from 0.1-0.2 mm. They are characterized by low density, high tensile strength and high modulus of elasticity. They are extremely stiff, e.g. 5 times stiffer than glass fibers. This stiffness makes boron filaments difficult to weave, braid, or twist, but they can be formed into resin impregnated tapes for hand lay-up and filament winding processes. The high cost of boron filaments has limited their use to experimental aircraft and aero-space applications. Note de contenu : - Properties of boron fiber
- SEM image
- IR, X-ray and FT-IR studies of boron fiber
- DSC thermal analysis
- NMR studies
- Thermal conductivity properties
- Use of boron fiberEn ligne : https://drive.google.com/file/d/1zW959hRQSRPffEI-89L2I9Rx_bHP48I2/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18637
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Code-barres Cote Support Localisation Section Disponibilité 15112 - Périodique Bibliothèque principale Documentaires Disponible Study on permeability of porous ultra-high molecular weight polyethylene (UHMWPE) / B.-Y. Jiang in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 2 (05/2017)
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Titre : Study on permeability of porous ultra-high molecular weight polyethylene (UHMWPE) Type de document : texte imprimé Auteurs : B.-Y. Jiang, Auteur ; M.-Y. Zhou, Auteur ; Can Weng, Auteur ; C.-F. Li, Auteur Année de publication : 2017 Article en page(s) : p. 159-164 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse thermique
Essais dynamiques
FrittageLe frittage est un procédé de fabrication de pièces consistant à chauffer une poudre sans la mener jusqu’à la fusion. Sous l'effet de la chaleur, les grains se soudent entre eux, ce qui forme la cohésion de la pièce.
Matériaux poreux
Perméabilité
Polyéthylène à ultra haut poids moléculaire
Polymères -- Propriétés mécaniquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : In recent years, porous materials are gaining in popularity for engineering applications, due to their special characteristics, such as low density, large specific surface area, and excellent permeability. In this study, powder processing technique was used to prepare ultra-high molecular weight polyethylene UHMWPE porous materials. Sintering temperature was obtained by combining differential scanning calorimetry (DSC) analysis and tensile tests. The surface morphology of sintering necks and tensile fracture were observed by scanning electron microscopy (SEM). Finally, single factor tests and orthogonal experiments were conducted to optimize three main processing parameters for a better permeability. It is found that the proper sintering temperature range would be from 143 to 153.1°C. According to the significance of influence, processing factors come in the sequence of the particle size, the compaction strength and the sintering temperature. Porous materials were successfully prepared, under the optimized parameters as the particle size >250 ?m, the compaction strength of 2.5 MPa and the sintering temperature of 152°C. Note de contenu : - DETERMINATION OF SINTERING TEMPERATURE RANGE : Sinter material - Thermal analysis - Preparation of porous UHMWPE material - Tensile strenght
- EXPERIMENTS : Microstructures of UHMWPE porous material - Calculation of permeability - Single factor tests ans orthogonal tests
- RESULTS AND DISCUSSION : Effects of processing parameters on permeability - Optimization of processing parametersDOI : 10.3139/217.3189 En ligne : https://drive.google.com/file/d/12WC98I6-a_6__miHLY5WU9GWRj9t9L0E/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28491
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Code-barres Cote Support Localisation Section Disponibilité 18872 - Périodique Bibliothèque principale Documentaires Disponible Study on the influence of extrusion temperature and extrusion die on the properties of self-reinforced PP sheets / S. Wen in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 2 (05/2017)
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