Modification of montmorillonite with aminopropylisooctyl polyhedral oligomeric silsequioxane

Zhao, Feng; Wan, Chaoying; Bao, Xujin; Kandasubramanian, Balasubramanian

doi:10.1016/j.jcis.2009.02.014

Cited by 66 publications

(45 citation statements)

References 32 publications

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“…This proved that the AP-POSS surfactant was successfully intercalated into the nanoclay galleries consequently pushing the nanoclay layers and confirms that modification process has taken place. Thus, this result corresponds to the study conducted by Zhao et al (2009) [8] where the dspacing increased from 0.96 nm for Na-MMT to 1.25 nm for POSS-MMT. This intercalation is an efficient way to increase the material surface hydrophobicity of Na-MMT which is a fundamental requirement for good compatibility between the polymer matrix and the Na-MMT surface [9].…”

Section: Characterization Of Nanoclaysupporting

confidence: 86%

Surface Modification of Nanoclay for the Synthesis of Polycaprolactone (PCL) – Clay Nanocomposite

Yusoh

Kumaran

Ismail

2018

MATEC Web of Conferences

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Abstract. This paper presents a new modification method to modify the surface of nanoclay (Na-MMT) to increase its d-spacing using Aminopropylisooctyl Polyhedral Oligomeric Silsesquioxane (AP-POSS) and the fabrication of Polycaprolactone (PCL) nanocomposite through solution intercalation technique. The structure and morphology of pure nanoclay, modified nanoclay (POSS-MMT) and the PCL nanocomposite were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM). XRD revealed that the d-spacing of the POSS-MMT is increased by 0.64 nm as compared to pure nanoclay. FTIR and FESEM results also showed that AP-POSS were well dispersed and intercalated throughout the interlayer space of Na-MMT. An exfoliated structure was also observed for PCL/POSS-MMT nanocomposite. Thermal properties of the nanocomposite were investigated using Thermal Gravimetry Analysis (TGA) which recorded highest degradation temperature for PCL/POSS-MMT 1% nanocomposite which is 394.1˚C at 50% weight loss (T50%) but a decrease in degradation temperature when POSS-MMT content is increased and Differential Scanning Calorimetry (DSC) analysis which showed highest melting and crystallization temperature for PCL/POSS-MMT 5% nanocomposite which is 56.6˚C and 32.7˚C respectively whereas a decrease in degree of crystallinity for PCL/POSS-MMT nanocomposite as compared to PCL/Na-MMT nanocomposite. This study affords an efficient modification method to obtain organoclay with larger interlayer d-spacing to enhance the properties of polymer nanocomposite.

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Section: Characterization Of Nanoclaysupporting

confidence: 86%

Surface Modification of Nanoclay for the Synthesis of Polycaprolactone (PCL) – Clay Nanocomposite

Yusoh

Kumaran

Ismail

2018

MATEC Web of Conferences

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“…Fluorination led to better distribution of MWCNT in epoxy, which can be explained by the hydrophobic functional groups induced during fluorination [3,15,36]. Similar with above results, other groups reported that the dispersivity of MMT in epoxy resin is poor due to the hydrophilic properties of MMT but it can be improved by hydrophobic functional groups [37,38].…”

Section: Mmt and Mwcnt Distributed In The Epoxy By Fluorinationsupporting

confidence: 74%

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Im¹,

Lee²,

et al. 2010

Journal of Analytical and Applied Pyrolysis

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“…A good dispersion of inorganic clays in polymer matrices usually requires the organic modification of the clays, which leads to a decrease in surface energy improving the miscibility with the polymer. Moreover, the modification expands the interlayer space, allowing large polymer molecules to enter into the clay galleries [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Study of the effects of the reaction conditions on the modification of clays with polyelectrolytes and silanes

Orden

Muñoz

Lorenzo

et al. 2010

Journal of Colloid and Interface Science

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Modification of montmorillonite with aminopropylisooctyl polyhedral oligomeric silsequioxane

Cited by 66 publications

References 32 publications

Surface Modification of Nanoclay for the Synthesis of Polycaprolactone (PCL) – Clay Nanocomposite

Surface Modification of Nanoclay for the Synthesis of Polycaprolactone (PCL) – Clay Nanocomposite

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Study of the effects of the reaction conditions on the modification of clays with polyelectrolytes and silanes

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