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Effect of montmorillonite addition (modified and unmodified) on the structural, mechanical, thermal, and morphological properties of nanocomposites based poly(vinyl chloride) / Badra Bouchareb in MATERIAUX & TECHNIQUES, Vol. 110, N° 1 (13/06/2022)
[article]
Titre : Effect of montmorillonite addition (modified and unmodified) on the structural, mechanical, thermal, and morphological properties of nanocomposites based poly(vinyl chloride) Type de document : texte imprimé Auteurs : Badra Bouchareb, Auteur ; Nacerddine Haddaoui, Auteur ; Sarwat Zahra, Auteur Année de publication : 2022 Article en page(s) : 12 p. Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile
Chlorure de polyvinyle
Composites thermoplastiques -- Propriétés physiques
Montmorillonite
NanoparticulesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Poly(vinyl chloride)/ montmorillonite nanocomposites were prepared using a melt mixing technique. For this purpose, three montmorillonite samples (MMT) namely, raw montmorillonite (R-MMT), sodium montmorillonite (Na+-MMT) and organically modified montmorillonite (O-MMT) were used with different contents (0, 1, 3, 5, 7 and 9 phr) in the presence of dioctyl phthalate (DOP). X-Ray Diffraction (XRD), Atomic Force Microscopy (AFM), Differential Scanning Calorimetry (DSC), and mechanical testing were used to investigate the physical properties of nanocomposites (PVC/MMT). The results of XRD show that macromolecule chains of PVC may be intercalated or exfoliated into the gallery of modified montmorillonite (Na+-MMT and O-MMT). Microcomposites structure is formed on the PVC/R-MMT nanocomposites when the unmodified montmorillonite (R-MMT) content is added from 1 to 9 phr. However, the glass transition temperature (Tg) of PVC/O-MMT nanocomposites is shifted slightly to lower temperatures. Furthermore, O-MMT plays the role of an internal plasticizer hence increases the distance between macromolecule chains of the polymer. Consequently, the degree of interactions between the chains decreases inducing a decrease in Tg. Synergy effect is also observed on the PVC/O-MMT nanocomposites with the increase in the amount of O-MMT. The morphological study by AFM shows a reduction in surface roughness under the effect of montmorillonite modified, and particularly with (1 phr) of O-MMT. Note de contenu : - MATERIALS AND METHODS : Material - Preparation of PVC/MMT nanocomposite
- METHODS : X-ray diffraction (XRD) - Tensile test - Hardness - Differential Scanning Calorimetry (DSC) - Atomic Force Microscopy (AFM)
- RESULTS AND DISCUSSION : X-ray diffraction (XRD) - Tensile test - Hardness test - Differential Scanning Calorimetry (DSC) - Atomic Force Microscopy (AFM)
- Table 1 : Formulations realized with R-MMT, Na+ -MMT and O-MMT
- Table 2 : Tensile properties of PVC/R-MMT, PVC/Na + -MMT and PVC/O-MMT nanocomposites with modified and unmodified MMT
- Table 3 : Results of DSC analysis (glass transition temperature) of PVC films and its nanocomposites
- Table 4 : RMS values of different nanocompositesRéférence de l'article : 103 DOI : https://doi.org/10.1051/mattech/2022011 En ligne : https://www.mattech-journal.org/articles/mattech/pdf/2022/01/mt210028.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37814
in MATERIAUX & TECHNIQUES > Vol. 110, N° 1 (13/06/2022) . - 12 p.[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23452 - Périodique Bibliothèque principale Documentaires Disponible Effect of particles sizes and pigment volume concentrations on the barrier properties of polyurethane coatings / Fuchun Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 7, N° 3 (05/2010)
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Titre : Effect of particles sizes and pigment volume concentrations on the barrier properties of polyurethane coatings Type de document : texte imprimé Auteurs : Fuchun Liu, Auteur ; Lihong Yang, Auteur ; Enhou Han, Auteur Année de publication : 2010 Article en page(s) : p. 301-313 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chlorure de polyvinyle
Concentration pigmentaire volumique
Dioxyde de titane
Polyuréthanes
Revêtements
Spectroscopie d'impédance électrochimique
Taille des particulesIndex. décimale : 667.9 Revêtements et enduits Résumé : The barrier properties of Fe2O3/polyurethane coatings containing 60-nm and 150-nm Fe2O3 particles with different pigment volume concentrations (PVCs) were investigated by electrochemical impedance spectroscopy and accelerated salt spray tests. The results indicate that the addition of 60-nm Fe2O3 can significantly improve the barrier properties of a coating, while 150-nm Fe2O3. has little effect. The 0.2% PVC 60-nm Fe203 coating had significantly improved protection. DOI : 10.1007/s11998-009-9203-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-009-9203-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9810
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 7, N° 3 (05/2010) . - p. 301-313[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012381 - Périodique Bibliothèque principale Documentaires Disponible Electrical and mechanical properties of antistatic poly(vinyl chloride) composites filled with silver plated hollow glass microspheres / J. Wang ; X. L. Chen ; S. H. Qi in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 2 (05/2016)
[article]
Titre : Electrical and mechanical properties of antistatic poly(vinyl chloride) composites filled with silver plated hollow glass microspheres Type de document : texte imprimé Auteurs : J. Wang, Auteur ; X. L. Chen, Auteur ; S. H. Qi, Auteur Année de publication : 2016 Article en page(s) : p. 247-253 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antistatiques
Argent
Charges (matériaux)
Chlorure de polyvinyle
Composites -- Propriétés électriques
Composites -- Propriétés mécaniques
Microsphères
VerreIndex. décimale : 668.4 Plastiques, vinyles Résumé : Antistatic poly(vinyl chloride) (PVC) composites filled with silver plated hollow glass microspheres (Ag-HGMs) were prepared using the melt-mixing method. Electrical resistivity and mechanical properties of the Ag-HGMs/PVC composites were subsequently investigated. The results show that the HGMs were successfully coated with a uniform and compact silver layer. With increasing Ag-HGMs content, the volume resistivity of Ag-HGMs/PVC composites decreases nonlinearly. With an Ag-HGMs content of about 120 phr, reaching the percolation concentration, the composites meet the antistatic requirements for commercial antistatic PVC materials. Furthermore, the tensile strength of Ag-HGMs/PVC composites decreases with increasing content of Ag-HGMs, while the impact strength increases with increasing content of Ag-HGMs from 0 phr to 150 phr. We especially found that with a Ag-HGMs/PVC composites exhibit great impact strength. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of Ag-HGMs - Preparation of Ag-HGMs/PVC composites - Characterization
- RESULTS AND DISCUSSION : Structures of Ag-HGMs - Conductivity characteristic of Ag-HGMs/PVC - Structure of Ag-HGMs/PVC composites - Mechanical properties of Ag-HGMs/PVC compositesDOI : 10.3139/217.3202 En ligne : https://drive.google.com/file/d/1PK5QPUhEv3kvhHOKpoca1IL2sn3WbmPU/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26183
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 2 (05/2016) . - p. 247-253[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17979 - Périodique Bibliothèque principale Documentaires Disponible Encyclopedia of PVC / Leonard I. Nass / New York [United States] : Marcel Dekker, Inc. (1986)
Accompagne Encyclopedia of PVC / Leonard I. Nass / New York [United States] : Marcel Dekker, Inc. (1988)
Titre : Encyclopedia of PVC : Vol. 1 : Resin manufacture and properties Type de document : texte imprimé Auteurs : Leonard I. Nass, Editeur scientifique ; Charles A. Heiberger, Editeur scientifique Mention d'édition : 2e édition, Rev. and Exp. Editeur : New York [United States] : Marcel Dekker, Inc. Année de publication : 1986 Importance : XVI-702 p. Présentation : ill. Format : 26 cm ISBN/ISSN/EAN : 978-0-8247-7427-1 Note générale : Index - Bibliogr. Langues : Américain (ame) Catégories : Chlorure de polyvinyle
Matières plastiques -- Encyclopédies
Polymères -- EncyclopédiesIndex. décimale : 668.4 Plastiques, vinyles Note de contenu : - 1. PVC : Past, present, and future
- 2. Vinyl chloride production
- 3. PVC processes and manufacture
- 4. Copolymer processes and manufacture
- 5. Safety and environmental concerns in resin manufacture
- 6. Resin structure and properties
- 7. Resin testing and quality assurance
- 8. Theory of degradation and stabilization mechanisms
- 9. Solvatation and plasticization
- 10. PVC blends, blocks, grafts, and interpenetrating polymer networks
- 11. Chemical modifications : chlorinated PVCPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34413 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21927 668.4 ENC 1 Encyclopédie Bibliothèque principale Documentaires Disponible Encyclopedia of PVC / Leonard I. Nass / New York [United States] : Marcel Dekker, Inc. (1988)
Titre : Encyclopedia of PVC : Vol. 2 : Compound design and additives Type de document : texte imprimé Auteurs : Leonard I. Nass, Editeur scientifique ; Charles A. Heiberger, Editeur scientifique Mention d'édition : 2e édition, Rev. and Exp. Editeur : New York [United States] : Marcel Dekker, Inc. Année de publication : 1988 Importance : XVIII-675 p. Présentation : ill. Format : 26 cm ISBN/ISSN/EAN : 978-0-8247-7695-4 Note générale : Index - Bibliogr. Langues : Américain (ame) Catégories : Chlorure de polyvinyle
Granulés plastiques
Matières plastiques -- Additifs
Matières plastiques -- Encyclopédies
Polymères -- Additifs
Polymères -- EncyclopédiesIndex. décimale : 668.4 Plastiques, vinyles Note de contenu : - 1. The compounding of polyvinyl chloride
- 2. Actions and characteristics of stabilizers
- 3. Plasticizers : Types, properties, and performance
- 4. Lubricants for PVC
- 5. Polymeric modifiers : Types, properties, and performance
- 6. Fillers : Types, properties, and performance
- 7. Colorants, Types, properties, and performance
- 8. Miscellaneous modifying agentsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34414 Est accompagné deRéservation
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