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Maurizio Galimberti - One of the best experts on this subject based on the ideXlab platform.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • interactive effects between carbon allotrope Fillers on the mechanical reinforcement of polyisoprene based nanocomposites
    Express Polymer Letters, 2014
    Co-Authors: Silvia Agnelli, Sara Musto, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Maurizio Galimberti
    Abstract:

    Interactive effects of carbon allotropes on the mechanical reinforcement of polymer nanocomposites were inves- tigated. Carbon nanotubes (CNT) and nano-graphite with high shape anisotropy (nanoG) were melt blended with poly(1,4- cis-isoprene), as the only Fillers or in combination with carbon black (CB), measuring the shear modulus at low strain amplitudes for peroxide crosslinked composites. The nanoFiller was found to increase the low amplitude storage modulus of the matrix, with or without CB, by a factor depending on nanoFiller type and content. This factor, fingerprint of the nanoFiller, was higher for CNT than for nanoG. The Filler-polymer interfacial area was able to correlate modulus data of composites with CNT, CB and with the hybrid Filler System, leading to the construction of a common master curve.

Gaetano Guerra - One of the best experts on this subject based on the ideXlab platform.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

Stefano Pandini - One of the best experts on this subject based on the ideXlab platform.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • interactive effects between carbon allotrope Fillers on the mechanical reinforcement of polyisoprene based nanocomposites
    Express Polymer Letters, 2014
    Co-Authors: Silvia Agnelli, Sara Musto, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Maurizio Galimberti
    Abstract:

    Interactive effects of carbon allotropes on the mechanical reinforcement of polymer nanocomposites were inves- tigated. Carbon nanotubes (CNT) and nano-graphite with high shape anisotropy (nanoG) were melt blended with poly(1,4- cis-isoprene), as the only Fillers or in combination with carbon black (CB), measuring the shear modulus at low strain amplitudes for peroxide crosslinked composites. The nanoFiller was found to increase the low amplitude storage modulus of the matrix, with or without CB, by a factor depending on nanoFiller type and content. This factor, fingerprint of the nanoFiller, was higher for CNT than for nanoG. The Filler-polymer interfacial area was able to correlate modulus data of composites with CNT, CB and with the hybrid Filler System, leading to the construction of a common master curve.

Valeria Cipolletti - One of the best experts on this subject based on the ideXlab platform.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • interactive effects between carbon allotrope Fillers on the mechanical reinforcement of polyisoprene based nanocomposites
    Express Polymer Letters, 2014
    Co-Authors: Silvia Agnelli, Sara Musto, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Maurizio Galimberti
    Abstract:

    Interactive effects of carbon allotropes on the mechanical reinforcement of polymer nanocomposites were inves- tigated. Carbon nanotubes (CNT) and nano-graphite with high shape anisotropy (nanoG) were melt blended with poly(1,4- cis-isoprene), as the only Fillers or in combination with carbon black (CB), measuring the shear modulus at low strain amplitudes for peroxide crosslinked composites. The nanoFiller was found to increase the low amplitude storage modulus of the matrix, with or without CB, by a factor depending on nanoFiller type and content. This factor, fingerprint of the nanoFiller, was higher for CNT than for nanoG. The Filler-polymer interfacial area was able to correlate modulus data of composites with CNT, CB and with the hybrid Filler System, leading to the construction of a common master curve.

Michele Coombs - One of the best experts on this subject based on the ideXlab platform.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • delamination of organically modified montmorillonite for reducing the Filler networking with carbon black in poly 1 4 cis isoprene based nanocomposites
    Applied Clay Science, 2015
    Co-Authors: Maurizio Galimberti, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Gaetano Guerra
    Abstract:

    Abstract This work presents the correlation between the organization of an organically modified montmorillonite (OMt) and the dynamic-mechanical properties of polymer nanocomposites containing a hybrid Filler System, based on carbon black (CB) and OMt. Clay polymer nanocomposites (CPN) were prepared by melt blending synthetic poly(1,4-cis-isoprene) (PI), carbon black (CB) and OMt. Two types of OMt were used: with ammonium cations intercalated between the clay mineral layers (I-OMt) and delaminated (D-OMt). The latter was obtained via ball milling of I-OMt and presented a degree of delamination higher than 95%, as revealed by X-ray diffraction (XRD) analysis. The structure of CPN was studied with XRD and transmission electron microscopy (TEM) analyses. The mechanical behavior of uncrosslinked masterbatches and of nanocomposites crosslinked with sulfur based Systems was assessed with dynamic shear experiments, by measuring the time needed to recover the initial modulus after a large strain perturbation and by obtaining master curves for the dependence of the storage modulus on frequency. I-OMt is shown to promote the Filler networking phenomenon more easily than D-OMt: the storage modulus has a stronger reduction with the strain amplitude and a longer rubbery plateau is featured on the frequency scale. Modulus recovery measurements revealed that the structure of CPN can be restored after the application of large strain amplitudes. The extent of OMt delamination is presented as a key feature to control the dynamic-mechanical properties of CPN containing a Filler, such as CB, suitable to establish an intimate interaction with OMt. The partial substitution of CB with D-OMt allowed the preparation of crosslinked nanocomposites with lower Payne effect.

  • interactive effects between carbon allotrope Fillers on the mechanical reinforcement of polyisoprene based nanocomposites
    Express Polymer Letters, 2014
    Co-Authors: Silvia Agnelli, Sara Musto, Valeria Cipolletti, Michele Coombs, Lucia Conzatti, Stefano Pandini, T Ricco, Maurizio Galimberti
    Abstract:

    Interactive effects of carbon allotropes on the mechanical reinforcement of polymer nanocomposites were inves- tigated. Carbon nanotubes (CNT) and nano-graphite with high shape anisotropy (nanoG) were melt blended with poly(1,4- cis-isoprene), as the only Fillers or in combination with carbon black (CB), measuring the shear modulus at low strain amplitudes for peroxide crosslinked composites. The nanoFiller was found to increase the low amplitude storage modulus of the matrix, with or without CB, by a factor depending on nanoFiller type and content. This factor, fingerprint of the nanoFiller, was higher for CNT than for nanoG. The Filler-polymer interfacial area was able to correlate modulus data of composites with CNT, CB and with the hybrid Filler System, leading to the construction of a common master curve.