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ABS/clay nanocomposites obtained by a solution technique: Influence of clay organic modifiers

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Title: ABS/clay nanocomposites obtained by a solution technique: Influence of clay organic modifiers
Authors: Modesti, M.1 michele.modesti@unipd.it, Besco, S.1, Lorenzetti, A.1, Causin, V.2, Marega, C.2, Gilman, J.W.3, Fox, D.M.4, Trulove, P.C.5, De Long, H.C.6, Zammarano, M.3
Source: Polymer Degradation & Stability. Dec2007, Vol. 92 Issue 12, p2206-2213. 8p.
Subjects: Nanostructured materials, Composite materials, Polymers, Clay, Acrylonitrile, Butadiene, Styrene
Abstract: Abstract: Acrylonitrile-butadiene-styrene (ABS) polymer/clay nanocomposites were produced using an intercalation–adsorption technique from polymer in solution: polymer/clay suspensions were subjected to ultrasonic processing to increase the effectiveness of mixing. Several kinds of organically modified layered silicates (OMLS) were used to understand the influence of the surfactant nature on the intercalation–exfoliation mechanism. We show that only imidazolium-treated montmorillonite (DMHDIM-MMT) is stable at the processing temperature of 200°C, used for hot-pressing, whereas alkyl-ammonium modified clays show significant degradation. The morphology of ABS based polymer nanocomposites prepared in this work was characterized by means of wide angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Dynamic-mechanical analysis (DMA) was used to determine the storage modulus and damping coefficient as a function of temperature, and to investigate the correlations between mechanical properties and morphology of the nanocomposites. The thermal stability was assessed by means of thermogravimetric analysis (TGA). DMA and TGA show that the nanocomposites based on imidazolium-modified clay out-perform the nanocomposites based on quaternary-ammonium-modified clays in terms of mechanical properties and thermal stability. [Copyright &y& Elsevier]
Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 27724071
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: ABS/clay nanocomposites obtained by a solution technique: Influence of clay organic modifiers
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  Data: <searchLink fieldCode="AR" term="%22Modesti%2C+M%2E%22">Modesti, M.</searchLink><relatesTo>1</relatesTo><i> michele.modesti@unipd.it</i><br /><searchLink fieldCode="AR" term="%22Besco%2C+S%2E%22">Besco, S.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lorenzetti%2C+A%2E%22">Lorenzetti, A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Causin%2C+V%2E%22">Causin, V.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Marega%2C+C%2E%22">Marega, C.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gilman%2C+J%2EW%2E%22">Gilman, J.W.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Fox%2C+D%2EM%2E%22">Fox, D.M.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Trulove%2C+P%2EC%2E%22">Trulove, P.C.</searchLink><relatesTo>5</relatesTo><br /><searchLink fieldCode="AR" term="%22De+Long%2C+H%2EC%2E%22">De Long, H.C.</searchLink><relatesTo>6</relatesTo><br /><searchLink fieldCode="AR" term="%22Zammarano%2C+M%2E%22">Zammarano, M.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Polymer+Degradation+%26+Stability%22">Polymer Degradation & Stability</searchLink>. Dec2007, Vol. 92 Issue 12, p2206-2213. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Clay%22">Clay</searchLink><br /><searchLink fieldCode="DE" term="%22Acrylonitrile%22">Acrylonitrile</searchLink><br /><searchLink fieldCode="DE" term="%22Butadiene%22">Butadiene</searchLink><br /><searchLink fieldCode="DE" term="%22Styrene%22">Styrene</searchLink>
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  Data: Abstract: Acrylonitrile-butadiene-styrene (ABS) polymer/clay nanocomposites were produced using an intercalation–adsorption technique from polymer in solution: polymer/clay suspensions were subjected to ultrasonic processing to increase the effectiveness of mixing. Several kinds of organically modified layered silicates (OMLS) were used to understand the influence of the surfactant nature on the intercalation–exfoliation mechanism. We show that only imidazolium-treated montmorillonite (DMHDIM-MMT) is stable at the processing temperature of 200°C, used for hot-pressing, whereas alkyl-ammonium modified clays show significant degradation. The morphology of ABS based polymer nanocomposites prepared in this work was characterized by means of wide angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). Dynamic-mechanical analysis (DMA) was used to determine the storage modulus and damping coefficient as a function of temperature, and to investigate the correlations between mechanical properties and morphology of the nanocomposites. The thermal stability was assessed by means of thermogravimetric analysis (TGA). DMA and TGA show that the nanocomposites based on imidazolium-modified clay out-perform the nanocomposites based on quaternary-ammonium-modified clays in terms of mechanical properties and thermal stability. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Polymer Degradation & Stability is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.polymdegradstab.2007.01.036
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      – Code: eng
        Text: English
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        PageCount: 8
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      – SubjectFull: Composite materials
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      – SubjectFull: Polymers
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      – SubjectFull: Clay
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      – SubjectFull: Butadiene
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      – SubjectFull: Styrene
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      – TitleFull: ABS/clay nanocomposites obtained by a solution technique: Influence of clay organic modifiers
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              M: 12
              Text: Dec2007
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