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Effect of processing conditions on the dispersion of vapor grown carbon fiber in a polyamide 6 and the crystalline structure of their composites by melt compounding / T. Koyama in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 3 (07/2010)
[article]
Titre : Effect of processing conditions on the dispersion of vapor grown carbon fiber in a polyamide 6 and the crystalline structure of their composites by melt compounding Type de document : texte imprimé Auteurs : T. Koyama, Auteur ; Shuichi Tanoue, Auteur ; Y. Iemoto, Auteur Année de publication : 2010 Article en page(s) : p. 181-187 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Fibres de carbone
Polyamide 6Tags : 'Polyamide 6' 'Phase vapeur' 'Fibre de carbone' 'Vapor grown carbon fiber' (VGCF) Index. décimale : 668.9 Polymères Résumé : We present the preparation of polyamide 6 (PA6)/Vapor Grown Carbon Fiber (VGCF) composites by melt compounding. Two commercialized forms of PA6 with different melt flow rates (herein named PA6-low and PA6-high.) and two VGCF, VGCF-H (aspect ratio: 40) and VGCF-S (aspect ratio: 100) were used in this study. Young's modulus and the yield strength increased when small amount of VGCF (e.g. 1 wt.%) was added to PA6, and the properties of PA6-low/VGCF composites increased with a decrease in the aspect ratio of VGCF. According to scanning electron microscopy (SEM) observations, the dispersion state of VGCF in PA6-low/VGCF-S composites is superior to the PA6-low/VGCF-H composites. This may be due to the weakening of tensile properties caused by cracks between the adjoining crystals generated by the large amount of VGCF that act as nucleants. Hence, the aspect ratio of VGCF has an influence on the tensile properties of PA6/VGCF composites. The mechanical properties were shown to increase with VGCF-H length. Matrix viscosity and the screw rotation speed were also found to influence the mechanical properties of PA6/VGCF-H composites. DOI : 10.3139/217.2307 En ligne : https://drive.google.com/file/d/1Hczpte4Dsd4HQ9G5-7yU74TBKnqMLFTD/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9730
in INTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 3 (07/2010) . - p. 181-187[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012302 - Périodique Bibliothèque principale Documentaires Disponible Effect of C/B ratio in reactants on low-pressure CVD boron-doped carbon deposited from a BCI3-C3H6-H2 mixture / Yongsheng Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 4 (12/2009)
[article]
Titre : Effect of C/B ratio in reactants on low-pressure CVD boron-doped carbon deposited from a BCI3-C3H6-H2 mixture Type de document : texte imprimé Auteurs : Yongsheng Liu, Auteur ; Litong Zhang, Auteur ; Laifei Cheng, Auteur ; Wenbin Yang, Auteur ; Yongdong Xu, Auteur ; Qinfeng Zeng, Auteur Année de publication : 2009 Article en page(s) : p. 509-515 Note générale : Bibliogr. Langues : Américain (ame) Tags : Boron-doped carbon Low-pressure Chemical vapor deposition C/B ratio Index. décimale : 667.9 Revêtements et enduits Résumé : Propylene was used to fabricate boron-doped carbon coatings by low-pressure chemical vapor deposition. The effects of carbon/boron (C/B) ratio in reactants on the deposition rate, morphologies, and bonding states of the deposits were investigated. Deposition rate increased with increasing C/B ratio, when C/B ratio was less than 4.0. Then, deposition rate decreased with increasing C/B ratio. The maximum rate was 500 nm/h. SEM results showed that cross section morphologies and thickness of deposits were influenced by C/B ratio. Morphologies were compact and not-delaminated with a low C/B ratio, however nanoscale delamination occurred in the deposits with a high C/B ratio. The infiltration characteristic was also influenced by the C/B ratio. The suitable C/B ratio was 1.0–2.0 for infiltration in a T300 carbon bundle. XPS results showed that carbon content is major in the deposits with all C/B ratios. The boron contents decreased and carbon contents increased with increasing C/B ratio. B-sub-C and BC2O were main bonding states. The total contents of B-sub-C and BC2O were above 60.0 at.% with all C/B ratios. DOI : 10.1007/s11998-008-9128-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9128-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=7694
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 4 (12/2009) . - p. 509-515[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011845 - Périodique Bibliothèque principale Documentaires Disponible Breaking boundaries / Christian Funder in KUNSTSTOFFE INTERNATIONAL, Vol. 98, N° 9/2008 (09/2008)
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Titre : Breaking boundaries Type de document : texte imprimé Auteurs : Christian Funder, Auteur ; Christian Kolditz, Auteur Année de publication : 2008 Article en page(s) : p. 86-89 Langues : Anglais (eng) Catégories : Conducteurs organiques
Nanotechnologie
NanotubesTags : Carbon NanoTubes (CNT) Index. décimale : 668.4 Plastiques, vinyles Résumé : Electrically conductive masterbatches - Carbon nanotubes in masterbatch form produce polymers with properties not previously achieved. Special electrically conductive applications such as plug connectors or bipolar fuel cell plates can be manufactured this way, whilst at the same time improving processability and strength. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3768
in KUNSTSTOFFE INTERNATIONAL > Vol. 98, N° 9/2008 (09/2008) . - p. 86-89[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010699 - Périodique Bibliothèque principale Documentaires Disponible