Delaminated and intercalated organically modified montmorillonite in poly(1,4-cis-isoprene) matrix. Indications of counterintuitive dynamic-mechanical behavior

Galimberti, Maurizio; Coombs, Michele; Cipolletti, V.; Spatola, Anna; Guerra, Gaetano; Lostritto, Angela; Giannini, Luca; Pandini, Stefano; Riccò, T.

doi:10.1016/j.clay.2014.05.010

Cited by 24 publications

(6 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extensively delaminated Mt/2HT was prepared by milling the OC with a planetary ball mill. 45 Its XRD pattern is shown in Figure 8d. The (00') reflections can hardly be detected, whereas the reflection due to the rotator order is still visible, to confirm that the packing energy of the paraffinic chains is a powerful driving force for assembling crystalline layered fillers.…”

Section: Results and Discussion Part I: Structure Of Nanofillers And mentioning

confidence: 99%

See 1 more Smart Citation

Recent Advancements in Rubber Nanocomposites

Galimberti

Cipolletti

Musto

et al. 2014

Rubber Chemistry and Technology

Self Cite

View full text Add to dashboard Cite

Nanocomposites were prepared via melt blending, based on organically modified clays (OC), carbon nanotubes (CNT), and graphitic nanofillers made by a few layers of graphene (nanoG). In particular, nanocomposites based on a hybrid filler system, with a nanostructured filler such as carbon black (CB), are examined. It is shown that low crystalline order in the interlayer space of a layered nanofiller (such as OC and nanoG) leads to easier delamination. Nanofillers give rise to filler networking at low concentration, particularly in the presence of CB. Hybrid filler systems lead to nanocomposites' having initial moduli that are much higher than those calculated through the sum of the initial modulus of composites containing either only CB or only the nanofiller. Nanofillers enhance the matrix modulus by a multiplication factor that depends only on the nanofiller type and content, regardless of whether the matrix is a neat or a CB-filled polymer. Furthermore, the filler–polymer interfacial area is shown to be a parameter able to correlate the mechanical behavior of both nano-CNT and nanostructured (CB) fillers. By plotting values of the composite initial modulus versus the filler–polymer interfacial area, points due to CB, CNT, and the hybrid CB-CNT system lie on the same curve.

show abstract

Section: Results and Discussion Part I: Structure Of Nanofillers And mentioning

confidence: 99%

“…Tests on Un-cross-linked Compounds of Table I. -Tests were performed by using the apparatus reported in ref 45.…”

Section: Dynamic-mechanical Testsmentioning

confidence: 99%

Recent Advancements in Rubber Nanocomposites

Galimberti

Cipolletti

Musto

et al. 2014

Rubber Chemistry and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Ever since Toyota presented layered silicate/polyamide nanocomposites in the early 1990s [ 4 ], polymer research has been concentrating on nanocomposites, and several nanoparticles have been used to reinforce rubbers at even low concentrations. Typical nanofillers include: layered silicates [ 5 , 6 ], spherical nanosilica [ 7 , 8 ], carbon nanotubes [ 9 , 10 ], organically modified clay [ 11 , 12 , 13 ] and bionanofillers [ 14 , 15 ]. The discovery of graphene [ 16 ] has created a new potential nanofiller for polymer nanocomposites [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Graphene/Carbon Black/Chlorine Isobutyl Isoprene Rubber Nanocomposites

et al. 2016

View full text Add to dashboard Cite

High loadings of carbon black (CB) are usually used to achieve the properties demanded of rubber compounds. In recent years, distinct nanoparticles have been investigated to replace CB in whole or in part, in order to reduce the necessary filler content or to improve performance. Multilayer graphene (MLG) is a nanoparticle made of just 10 graphene sheets and has recently become commercially available for mass-product nanocomposites. Three phr (part for hundred rubbers) of MLG are added to chlorine isobutyl isoprene rubber (CIIR)/CB composites in order to replace part of the CB. The incorporation of just 3 phr MLG triples the Young's modulus of CIIR; the same effect is obtained with 20 phr CB. The simultaneous presence of three MLG and CB also delivers remarkable properties, e.g. adding three MLG and 20 phr CB increased the hardness as much as adding 40 phr CB. A comprehensive study is presented, showing the influence on a variety of mechanical properties. The potential of the MLG/CB combination is illustrated to reduce the filler content or to boost performance, respectively. Apart from the remarkable mechanical properties, the CIIR/CB/MLG nanocomposites showed an increase in weathering resistance.

show abstract

“…Solid-state mechanochemical activation of materials includes milling to increase their reactivity, allows reactions in the solid state and decreases the decomposition temperature, causing structural defects and structural transformation, formation of metastable amorphous or hybrid materials, etc. (Mingelgrin et al, 1978;Garcia et al, 1991;Sanchez-Soto et al, 1997;Mendelovici, 2001;Christidis et al, 2004Christidis et al, , 2005Dellisanti & Valdré, 2005;Balek et al, 2007Balek et al, , 2008Ramadan et al, 2010;Vizcayno et al, 2010;Djukic et al, 2013;Dumas et al, 2013;Galimberti et al, 2014;Petra et al, 2015). One of the applications of this process is to obtain material for sustainable slowrelease fertilizers (Zhang et al, 2009;Solihin et al, 2010Solihin et al, , 2011, by combining an insoluble clay mineral and a soluble phosphate, yielding phases with low solubility.…”

mentioning

confidence: 99%

MAS NMR and EPR study of structural changes in talc and montmorillonite induced by grinding

2016

View full text Add to dashboard Cite

The milling process in the solid-state 2:1 clay minerals, montmorillonite and talc, which have different cation exchange capacities, is reported here. Several instrumental techniques were used to monitor systematically the products formed. The dehydroxylation/amorphization of the montmorillonite and talc structures occurs within 3 and 6 h of milling, respectively. Electron paramagnetic resonance spectra indicated that structural Mn2+ was oxidized more quickly in the montmorillonite structure than in talc, while the paramagnetic defects increased during milling. Nuclear magnetic resonance was also used to monitor the environmental changes for Si and Al during milling.

show abstract

Delaminated and intercalated organically modified montmorillonite in poly(1,4-cis-isoprene) matrix. Indications of counterintuitive dynamic-mechanical behavior

Cited by 24 publications

References 40 publications

Recent Advancements in Rubber Nanocomposites

Recent Advancements in Rubber Nanocomposites

Multilayer Graphene/Carbon Black/Chlorine Isobutyl Isoprene Rubber Nanocomposites

MAS NMR and EPR study of structural changes in talc and montmorillonite induced by grinding

Contact Info

Product

Resources

About