Effect of dendrimer modified montmorillonite on structure and properties of EPDM nanocomposites |
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| Affiliation: | 1. School of Mechanical, Aerospace and Civil Engineering, United Kingdom;2. North West Composites Centre, School of Materials, The University of Manchester, Manchester M13 9PL, United Kingdom;1. MMRI/ CAPPA-D, Department of Chemical Engineering, McMaster University, Hamilton, Ontario L8S 4L7, Canada;2. 3M Canada Company, London, Ontario, Canada;1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, China;2. Pearl River Water Resources Institute, Pearl River Water Resources Commission, Guangzhou, 510640, China;3. National Paper Products Quality Supervision Inspection Center, Dongguan, 523080, China;1. The Key Laboratory of Polymer Processing Engineering, Ministry of Education, South China University of Technology, Guangzhou 510640, China;2. Research and Development Department, Zhejiang Zhongning Silicon Company Ltd, QuZhou 324000, China;3. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China |
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| Abstract: | The purpose of this work was to study the effect of dendrimer modified clay minerals on the structure and properties of ethylene-propylene-diene monomer (EPDM) nanocomposites.Flame-retardant and dendrimer modified organic montmorillonite (FR-DOMt) was successfully prepared by Na+-montmorillonite, tetrahydroxymethyl phosphonium chloride (THPC), N, N-dihydroxyl-3-aminomethyl propionate, and boric acid. This dendritic type of organoclay (OC) was used in preparation of EPDM/FR-DOMt nanocomposites. The properties of these nanocomposites were studied. The dispersion status of the layered silicates in EPDM was revealed by X-ray diffractometer (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). XRD and TEM results showed that FR-DOMt was exfoliated in the EPDM matrix when 10 phr of FR-DOMt was incorporated. The mechanical behavior, thermal stability, and flame retardance of the samples were examined. The experimental data demonstrated that the EPDM hybrids owned an improved tensile strength and elongation at break. In addition, the nanocomposites exhibited higher thermal stability and flame retardance than that of unfilled EPDM matrix. |
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| Keywords: | FR-DOMt Ethylene-propylene-diene monomer (EPDM) Nanocomposite Structure Properties |
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