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Ivan’kova E, Kasatkin I, Vaganov G, Elokhovskiy V, Bugrov A, Yudin V, Pavlova E, Slouf M. Morphological Transformation in Polymer Composite Materials Filled with Carbon Nanoparticles: Part 1.—SEM and XRD Investigations. MATERIALS 2022; 15:ma15103531. [PMID: 35629560 PMCID: PMC9147559 DOI: 10.3390/ma15103531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 12/04/2022]
Abstract
HDPE-based nanocomposite fibers have been extruded from a melt and drawn up to draw ratio DR = 8. Two kinds of carbon nanodiscs (original ones and those exposed to additional annealing) have been used as fillers. Obtained nanocomposite fibers have been investigated with the help of different experimental methods: rheology, SEM and WAXS. It has been demonstrated that the annealed carbon nanodiscs possess a nucleation ability that finally leads to strong transformation of the material morphology.
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Affiliation(s)
- Elena Ivan’kova
- Institute of Biosystems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya ul. 29, 195251 St. Petersburg, Russia
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O., Bol’shoy pr. 31, 199004 St. Petersburg, Russia; (G.V.); (V.E.); (A.B.); (V.Y.)
- Correspondence:
| | - Igor Kasatkin
- Research Centre for X-ray Diffraction Studies, Saint Petersburg State University, Universitetskaya nab. 7-9, 199034 St. Petersburg, Russia;
| | - Gleb Vaganov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O., Bol’shoy pr. 31, 199004 St. Petersburg, Russia; (G.V.); (V.E.); (A.B.); (V.Y.)
| | - Vladimir Elokhovskiy
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O., Bol’shoy pr. 31, 199004 St. Petersburg, Russia; (G.V.); (V.E.); (A.B.); (V.Y.)
| | - Alexander Bugrov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O., Bol’shoy pr. 31, 199004 St. Petersburg, Russia; (G.V.); (V.E.); (A.B.); (V.Y.)
- Department of Physical Chemistry, Saint Petersburg Electrotechnical University (ETU “LETI”), ul. Professora Popova 5, 197022 St. Petersburg, Russia
| | - Vladimir Yudin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, V.O., Bol’shoy pr. 31, 199004 St. Petersburg, Russia; (G.V.); (V.E.); (A.B.); (V.Y.)
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16206 Prague, Czech Republic; (E.P.); (M.S.)
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 16206 Prague, Czech Republic; (E.P.); (M.S.)
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Fambri L, Dabrowska I, Ceccato R, Pegoretti A. Effects of Fumed Silica and Draw Ratio on Nanocomposite Polypropylene Fibers. Polymers (Basel) 2017; 9:polym9020041. [PMID: 30970723 PMCID: PMC6432459 DOI: 10.3390/polym9020041] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/18/2017] [Accepted: 01/20/2017] [Indexed: 11/25/2022] Open
Abstract
Hydrophylic fumed silica AR974 was tested as a potential nanofiller for the production of composite isotactic polypropylene filaments/fibers (containing 0.25–2 vol % of nanoparticles) via melt compounding and subsequent hot drawing. The objectives of this study were as follows: (i) to investigate the effects of the composition and the processing conditions on the microstructure and the thermal and mechanical properties of the produced fibers; (ii) to separate the effects of silica addition from those produced by fiber drawing; and (iii) to interpret the changes in the matrix molecular mobility (produced by silica and/or drawing). Scanning electron microscopy (SEM) evidenced a good dispersion of nanoparticles at fractions up to 0.5 vol % of the nanofiller. X-ray diffraction (XRD) analyses revealed the increase in crystallinity after drawing of both neat polypropylene (PP) and produced nanocomposite fibers. Consequently, tensile modulus and stress at break of the fibers were enhanced. Drawn fibers containing 0.25–0.5 vol % of nanofiller showed also a remarkable increase in the creep resistance. Loss modulus of drawn fibers showed a pronounced α-relaxation peak at about 65 °C; the higher the draw ratio, the higher the peak intensity. Thermal and mechanical properties of composite fibers were improved due to the combined effects of nanofiller reinforcement and fiber orientation produced during hot drawing. Both fumed silica and draw ratio were significantly effective on tensile modulus and tenacity of nanocomposite fibers up to 0.5 vol % of AR974.
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Affiliation(s)
- Luca Fambri
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy.
- National Interuniversity Consortium for Science and Technology of Materials (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
| | - Izabela Dabrowska
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy.
| | - Riccardo Ceccato
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy.
- National Interuniversity Consortium for Science and Technology of Materials (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
| | - Alessandro Pegoretti
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy.
- National Interuniversity Consortium for Science and Technology of Materials (INSTM), Via G. Giusti 9, 50121 Firenze, Italy.
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Aouat T, Kaci M, Devaux E, Campagne C, Cayla A, Dumazert L, Lopez-Cuesta JM. Morphological, Mechanical, and Thermal Characterization of Poly(Lactic Acid)/Cellulose Multifilament Fibers Prepared by Melt Spinning. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21779] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Tassadit Aouat
- Laboratoire des Matériaux Polymères Avancés (LMPA); Université de Bejaia; Bejaia 06000 Algeria
| | - Mustapha Kaci
- Laboratoire des Matériaux Polymères Avancés (LMPA); Université de Bejaia; Bejaia 06000 Algeria
| | - Eric Devaux
- Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); GEMTEX; 9 rue de l'Ermitage Roubaix F-59100 France
| | - Christine Campagne
- Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); GEMTEX; 9 rue de l'Ermitage Roubaix F-59100 France
| | - Aurélie Cayla
- Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT); GEMTEX; 9 rue de l'Ermitage Roubaix F-59100 France
| | - Loic Dumazert
- Centre des Matériaux des Mines d'Alès; Ecole des Mines d'Alès; 6, Avenue de Clavière Alès 30319 France
| | - José-Marie Lopez-Cuesta
- Centre des Matériaux des Mines d'Alès; Ecole des Mines d'Alès; 6, Avenue de Clavière Alès 30319 France
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