New magnetic nanocomposites: Polyurethane/ Fe3O4-synthetic talc

Santos, Leonardo Moreira dos; Ligabue, Rosane Angélica; Dumas, Angela; Roux, Christophe Le; Micoud, Pierre; Meunier, J. D.; Martin, F.; Einloft, Sandra

doi:10.1016/j.eurpolymj.2015.05.026

Cited by 32 publications

(43 citation statements)

References 26 publications

(58 reference statements)

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“…However, the introduction of nanosized particles of magnetic oxides into different polymer matrices leads to a decrease in the mechanical properties. This was shown for the introduction of nanosized oxide F 3 O 4 into polyurethane [7]. We obtained similar results for the preparation of polymer nanocomposites based on PA12 filled with different loading (0.1 -10 wt.%) of nanosized (average grain size of about 1 -5 nm) chromium (III) oxide [8].…”

Section: Introductionsupporting

confidence: 81%

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Shapoval¹,

Zuev²

2016

Nanosystems: Phys. Chem. Math.

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Broadband dielectric spectroscopy was employed to study polymer nanocomposites based on PA12 filled with different loading (0.1 -10 wt.%) of nanosized (average grain size of about 1 -5 nm) chromium (III) oxide. The experimental dielectric data were analyzed within the formalisms of complex permittivity and electric modulus. Three relaxation processes and Maxwell-Wagner-Sillars (MWS) interfacial polarizations were observed. It was found that all the relaxations were sensitive to filler contents. The presence of nanosized amphoteric chromium (III) oxide was shown to lead to the softening of the polyamide matrix that manifested in decrease of the activation energy of the α-and β-relaxation processes and glass transition temperatures. The softening of polymer matrix is the reason for the decrease in the mechanical properties of the polymer nanocomposites as compared to that of neat PA12.

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Section: Introductionsupporting

confidence: 81%

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Shapoval¹,

Zuev²

2016

Nanosystems: Phys. Chem. Math.

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“…%. They confirmed the possible use of this filler to obtain magnetic nanocomposites leading to improved materials with high crystallization temperature and thermal stability …”

Section: Crystalline Nanotalc Obtained By Hydrothermal Treatmentmentioning

confidence: 70%

“…Dos Santos et al . used new P3 nanotalc associated with nano‐Fe 3 O 4 (Figure ) as filler for producing magnetic polymeric nanocomposites.…”

Section: Crystalline Nanotalc Obtained By Hydrothermal Treatmentmentioning

confidence: 99%

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Claverie

Dumas

Carême

et al. 2017

Chemistry A European J

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This contribution gives a comprehensive review about the progress in preparation methods, properties and applications of the different synthetic talc types: i) crystalline nanotalc synthesized by hydrothermal treatment; ii) amorphous and/or short-range order nanotalc obtained by precipitation, and iii) organic-inorganic hybrid talc-like structures obtained through a sol-gel process or a chemical grafting. Several advantages of nanotalc such as high chemical purity, high surface area, tunable submicronic size, high thermal stability, and hydrophilic character (leading to be the first fluid mineral) are emphasized. Synthetic nanotalc applications are also considered including its use as nanofiller in composite materials, as absorbers of organic compounds, as anticorrosion coatings and as agents for cosmetic applications. Regarding their high industrial application potential, intensive research has been carried out to better understand their behavior and develop processes to produce them. To facilitate further research and development, scientific and technical challenges are discussed in this Review article.

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“…The incorporation of MNPs into polymeric matrix occurred in situ and the material presents potential application as device of intravascular embolization . In another example, magnetic polyurethanes (PU) were synthesized and described by Einloft et al . According to the authors, Fe 3 O 4 ‐synthetic talc, obtained by addition of synthetic talc in the process of Fe 3 O 4 synthesis, has been frequently used as nanofiller reinforcement for polyurethanes.…”

Section: Introductionmentioning

confidence: 99%

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

Medeiros

Machado

Bourgeat‐Lami

et al. 2018

Macro Materials & Eng

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This work reports the use of acrylated fatty acid methyl ester (AFAME) as a biomonomer for the synthesis of bio‐based hybrid magnetic particles poly(styrene‐co‐AFAME)/γ‐Fe2O3 produced by miniemulsion polymerization. Poly(styrene‐co‐AFAME)/γ‐Fe2O3 can be tailored for use in various fields by varying the content of AFAME. The strategy employed is to encapsulate superparamagnetic iron oxide nanoparticles (SPIONs) as γ‐Fe2O3 into a styrene/AFAME‐based copolymer matrix. Raman spectroscopy is employed to ensure the formation of the SPIONs (γ‐Fe2O3) obtained by a co‐precipitation technique followed by oxidation of Fe3O4. The functionalization of SPIONs with oleic acid (OA) is carried out to increase the SPIONs–monomer affinity. The presence of OA on the surface of γ‐Fe2O3 is certified by identification of main absorption bands by fourier‐transform infrared spectroscopy (FTIR). Thermal analysis (differential thermogravimetry/differential thermo analysis and differential scanning calorimetry) results of poly(styrene‐co‐AFAME)/γ‐Fe2O3 show an increase in AFAME content leading to a lower copolymer glass transition temperature (T g). Dynamic light scattering (DLS) measurements result in poly(styrene‐co‐AFAME)/γ‐Fe2O3 particles with diameter in the range of 100–150 nm. It is also observed by transmission electron microscopy (TEM) and cryo‐TEM techniques that γ‐Fe2O3 particles are successfully encapsulated into the poly(styrene‐co‐AFAME) matrix.

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New magnetic nanocomposites: Polyurethane/ Fe3O4-synthetic talc

Cited by 32 publications

References 26 publications

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

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New magnetic nanocomposites: Polyurethane/ Fe3O4-synthetic talc

Cited by 32 publications

References 26 publications

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Dielectric properties of polyamide 12-chromium (III) oxide nanocomposites

Synthetic Talc and Talc‐Like Structures: Preparation, Features and Applications

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe2O3 by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene

Contact Info

Product

Resources

About

Bio‐Based Hybrid Magnetic Latex Particles Containing Encapsulated γ ‐Fe₂O₃ by Miniemulsion Copolymerization of Soybean Oil‐Acrylated Methyl Ester and Styrene