Characteristics of Rubber/Sodium Montmorillonite Nanocomposites Prepared by a Novel Method |
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Authors: | Hyun uk Jeon Dong Heun Lee Dug‐Jai Choi Min Seok Kim Jae Hoon Kim |
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Institution: | 1. Yongjin Fine Chemical Co., Ltd. , Nam‐Gu, Ulsan, Republic of Korea;2. Kumho Tire Co., Inc. , Gwangsan‐Gu, Gwangju, Republic of Korea;3. Department of Chemistry , University of Ulsan , Ulsan, Republic of Korea |
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Abstract: | In order to enhance the fine dispersion of hydrophilic sodium montmorillonite (Na‐MMT) in the matrix of hydrophobic rubber, the hydrophobic modification of Na‐MMT was carried out via an in situ method in the melt compounding process using the modifiers poly(ethylene glycol) monooleate or poly(ethylene glycol) diacrylate, both of which have a hydrophilic poly(ethylene glycol) (PEG) segment and a hydrophobic hydrocarbon segment. The X‐ray diffraction patterns showed that the interlayer distance of Na‐MMT was expanded by the intercalation of these modifiers. The morphology observed by scanning electron microscopy as well as the cure characteristics and tensile modulus showed that this organic modification effectively enhanced the fine dispersion of Na‐MMT in the rubber matrix. |
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Keywords: | sodium montmorillonite rubber nanocomposite poly(ethylene glycol) XRD SEM |
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